LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM &...

25
LINEAR MOTION Product information updated July 2017 and subject to change. Please click the product links for prices and availability. Trapezoidal Rolled Leadscrew 1 Start : Steel : ISO 2901/2903 DIN 103 : Tr10 x 2 - Tr80 x 10 LFM Material Medium Carbon Steel C35E / C45E (1.1181 / 1.1191). ISO 2901/2903 and DIN 103 tolerance 7e. Guide - Torque to move nut: Torque (Nm) = Load (N) x Lead (mm) 2000π x efficiency (Frictional & acceleration torque as well as frictional resistance of bearings of sub assemblies need to be taken into account). Efficiency Guide 20% with lubrication. Features Standard Lengths: (LFM102-LFM285): 1000mm and 3000mm. (LFM306-LFM12016*): 1000mm, 3000mm and 6000mm. Bars can be supplied to custom lengths and also machined according to your drawings. Quotations provided on request. *Larger sizes of threaded bar (RH only) available P.O.A.: LFM9012, LFM9516, LFM10016, LFM12016. Precision threaded bar for mechanical applications for transmission. For power transmission and continuous use, always use bronze nuts, never steel. Nuts and screws should always be lubricated with grease or oil. Steel nuts should be used with steel screws for hand motion only. To be used with our nuts: BFM, LRM, KSM, SKM, VKM and self-lubricating plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM. Special nuts can also be made - please fax a drawing for a quote. 10 12 14 16 18 20 22 24 28 30 32 36 40 44 50 60 70 80 9.82 11.76 13.76 15.70 17.70 19.70 21.67 23.67 27.67 29.63 31.63 35.63 39.58 43.58 49.55 59.47 69.47 79.47 2 3 3 4 4 4 5 5 5 6 6 6 7 7 8 9 10 10 8.93 10.42 12.42 13.91 15.91 17.91 19.39 21.39 25.39 26.88 28.88 32.88 36.38 40.38 45.87 55.36 64.85 74.85 8.74 10.19 12.19 13.64 15.64 17.64 19.11 21.09 25.09 26.55 28.55 32.55 36.02 40.02 45.47 54.94 64.43 74.43 7.5 8.5 10.5 11.5 13.5 15.5 16.5 18.5 22.5 23.0 25.0 29.0 32.0 36.0 41.0 50.0 59.0 69.0 6.89 7.69 9.69 10.47 12.47 14.47 15.29 17.27 21.27 21.56 23.56 27.56 30.38 34.38 39.17 47.98 56.82 66.82 200 200 200 50 50 50 50 50 50 70 70 70 80 80 100 100 100 100 0.5 0.5 0.5 0.5 0.5 0.5 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.4 0.4 4°07' 5°17' 4°26' 5°16' 4°36' 4°05' 4°43' 4°17' 3°36' 4°05' 3°48' 3°20' 3°31' 3°10' 3°11' 2°58' 2°49' 2°27' 0.48 0.65 0.93 1.17 1.53 1.94 2.29 2.78 3.91 4.36 5.04 6.55 7.98 9.86 12.70 18.50 25.63 34.19 LFM102 LFM123 LFM143 LFM164 LFM184 LFM204 LFM225 LFM245 LFM285 LFM306 LFM326 LFM366 LFM407 LFM447 LFM508 LFM609 LFM7010 LFM8010 LFM102/LH LFM123/LH LFM143/LH LFM164/LH LFM184/LH LFM204/LH LFM225/LH LFM245/LH LFM285/LH LFM306/LH LFM326/LH LFM366/LH LFM407/LH LFM447/LH LFM508/LH LFM609/LH LFM7010/LH LFM8010/LH Part Number RH LH Max. d Min. d Pitch/ Lead P Max. d2 Min. d2 Max. d3 Min. d3 Pitch Accuracy µ/300mm Straightness mm/300mm Lead Angle Mass Kg/m d d3 d2 Length P 30° https://amironic.co.il/ https://amironic.co.il/

Transcript of LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM &...

Page 1: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

Trapezoidal Rolled Leadscrew1 Start : Steel : ISO 2901/2903 DIN 103 : Tr10 x 2 - Tr80 x 10

LFM

MaterialMedium Carbon Steel C35E / C45E (1.1181 / 1.1191).ISO 2901/2903 and DIN 103 tolerance 7e.Guide - Torque to move nut: Torque (Nm) = Load (N) x Lead (mm) 2000π x efficiency(Frictional & acceleration torque as well as frictional resistance of bearings of sub assemblies need to be taken into account).Efficiency Guide 20% with lubrication.

FeaturesStandard Lengths: (LFM102-LFM285): 1000mm and 3000mm. (LFM306-LFM12016*): 1000mm, 3000mm and 6000mm.Bars can be supplied to custom lengths and also machined according to your drawings. Quotations provided on request.*Larger sizes of threaded bar (RH only) available P.O.A.:LFM9012, LFM9516, LFM10016, LFM12016.Precision threaded bar for mechanical applications for transmission. For power transmission and continuous use, always use bronze nuts, never steel. Nuts and screws should always be lubricated with grease or oil.Steel nuts should be used with steel screws for hand motion only.To be used with our nuts: BFM, LRM, KSM, SKM, VKM and self-lubricating plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM.Special nuts can also be made - please fax a drawing for a quote.

101214161820222428303236404450607080

9.8211.7613.7615.7017.7019.7021.6723.6727.6729.6331.6335.6339.5843.5849.5559.4769.4779.47

2334445556667789

1010

8.9310.4212.4213.9115.9117.9119.3921.3925.3926.8828.8832.8836.3840.3845.8755.3664.8574.85

8.7410.1912.1913.6415.6417.6419.1121.0925.0926.5528.5532.5536.0240.0245.4754.9464.4374.43

7.5 8.510.511.513.515.516.518.522.523.025.029.032.036.041.050.059.069.0

6.89 7.69 9.6910.4712.4714.4715.2917.2721.2721.5623.5627.5630.3834.3839.1747.9856.8266.82

200200200

5050505050507070708080

100100100100

0.50.50.50.50.50.50.20.20.20.20.20.20.20.20.20.20.40.4

4°07'5°17'4°26'5°16'4°36'4°05'4°43'4°17'3°36'4°05'3°48'3°20'3°31'3°10'3°11'2°58'2°49'2°27'

0.480.650.931.171.531.942.292.783.914.365.046.557.989.86

12.7018.5025.6334.19

LFM102LFM123LFM143LFM164LFM184LFM204LFM225LFM245LFM285LFM306LFM326LFM366LFM407LFM447LFM508LFM609LFM7010LFM8010

LFM102/LHLFM123/LHLFM143/LHLFM164/LHLFM184/LHLFM204/LHLFM225/LHLFM245/LHLFM285/LHLFM306/LHLFM326/LHLFM366/LHLFM407/LHLFM447/LHLFM508/LHLFM609/LHLFM7010/LHLFM8010/LH

PartNumber

RH LHMax.

dMin.

d

Pitch/Lead

P Max.

d2 Min.

d2Max.

d3Min.

d3

Pitch Accuracyµ/300mm

Straightnessmm/300mm

LeadAngle

MassKg/m

d d3 d2

Length

P 30°

https://amironic.co.il/

https://amironic.co.il/

Page 2: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

Trapezoidal Rolled Leadscrew1 Start : Stainless Steel : ISO 2901/2903 DIN 103 : Tr10 x 2 - Tr70 x 10

LSM

Material316L Stainless Steel (1.4404) (X2 CrNiMo17.12.2).ISO 2901/2903 and DIN 103 tolerance 7e.Guide - Torque to move nut: Torque (Nm) = Load (N) x Lead (mm) 2000π x efficiency(Frictional & acceleration torque as well as frictional resistance of bearings of sub assemblies need to be taken into account).Efficiency Guide 20% with lubrication.

FeaturesStandard Lengths: (LSM102-LSM285): 1000mm and 3000mm.(LSM306-LSM7010): 1000mm, 3000mm and 6000mm.Bars can be supplied to custom lengths and also machined according to your drawings. Quotations provided on request.Rolled threaded bar for use in wet or corrosive environments. For power transmission and continuous use, always use bronze nuts, never steel. Nuts and screws should always be lubricated with grease or oil.Steel nuts should be used with steel screws for hand motion only.To be used with our nuts: BFM, LRM, KSM, SKM, VKM and self-lubricating plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM).Special nuts can also be made - please ask for a quote.316L Stainless Steel ensures resilience to nearly all types of corrosion.

10121416182022242830323640506070

9.8211.7613.7615.7017.7019.7021.6723.6727.6629.6331.6335.6339.5849.5559.4769.47

233444555666789

10

8.9310.4212.4213.9115.9117.9119.3921.3925.3926.8828.8832.8836.3845.8755.3664.85

8.7410.1912.1913.6415.6417.6419.1121.0925.0926.5528.5532.5536.0245.4754.9464.43

7.5 8.51.0511.513.515.516.518.522.523.025.029.032.041.050.059.0

6.89 7.69 9.6910.4712.4714.4715.2917.2721.2721.5623.5627.5630.3839.1747.9856.82

300300300100100100100100100100100100150150150150

1.51.51.51.51.51.51.51.51.51.51.51.51.52.02.02.0

4°07'5°17'4°26'5°16'4°36'4°05'4°43'4°17'3°36'4°05'3°48'3°20'3°31'3°11'2°58'2°49'

0.480.650.931.171.531.942.292.783.914.365.046.557.98

12.7018.5025.63

LSM102LSM123LSM143LSM164LSM184LSM204LSM225LSM245LSM285LSM306LSM326LSM366LSM407LSM508LSM609LSM7010

-LSM123/LH

-LSM164/LH

-LSM204/LH

-LSM245/LH

-LSM306/LHLSM326/LHLSM366/LHLSM407/LHLSM508/LHLSM609/LHLSM7010/LH

PartNumber

RH LHMax.

dMin.

d

Pitch/Lead

P Max.

d2 Min.

d2Max.

d3Min.

d3

Pitch Accuracyµ/300mm

Straightnessmm/300mm

LeadAngle

MassKg/m

d d3 d2

Length

P 30°

https://amironic.co.il/

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Page 3: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

Trapezoidal Rolled Leadscrew2 Start : Steel : ISO 2901/2903 DIN 103 : Tr10 x 4 - Tr40 x 14

LFM

MaterialMedium Carbon Steel C35E / C45E (1.1181 / 1.1191).ISO 2901/2903 and DIN 103 tolerance 7e.Guide - Torque to move nut: Torque (Nm) = Load (N) x Lead (mm) 2000π x efficiency(Frictional & acceleration torque as well as frictional resistance of bearings of sub assemblies need to be taken into account).

FeaturesStandard Lengths: (LFM104-LFM2810): 1000mm and 3000mm.(LFM3012-LFM4014): 1000mm, 3000mm and 6000mm.Bars can be supplied to custom lengths and also machined according to your drawings. Quotations provided on request.Precision threaded bar for mechanical applications for transmission. For power transmission and continuous use, always use bronze nuts, never steel. Nuts and screws should always be lubricated with grease or oil.Steel nuts should be used with steel screws for hand motion only.To be used with our 2 start nuts: BFM, LRM, KSM, SKM & VKM.Special nuts can also be made - please fax a drawing for a quote.

10121416182022242830323640

9.8211.7613.7615.7017.7019.7021.6723.6727.6729.6331.6335.6339.58

466888

10101012121214

8.9310.4212.4213.9115.9117.9119.3921.3925.3926.8828.8832.8836.38

8.7210.1612.1613.6115.6117.6119.0621.0625.0626.5128.5132.5135.98

7.50 8.5010.5011.5013.5015.5016.5018.5022.5023.0025.0029.0032.00

6.89 7.69 9.6910.4712.4714.4715.2917.2721.2721.5623.5627.5630.38

300300300100100100200200200200200200200

0.50.50.50.50.50.50.30.30.30.30.30.30.3

8°12'10°30'

8°49'10°29'

9°20'8°09'9°23'8°31'7°12'8°08'7°34'6°39'7°01'

0.480.650.931.171.531.942.292.783.914.365.046.557.98

LFM104LFM126LFM146LFM168LFM188LFM208LFM2210LFM2410LFM2810LFM3012LFM3212LFM3612LFM4014

PartNumber

RHMax.

dMin.

d

Pitch/Lead

P Max.

d2 Min.

d2Max.

d3Min.

d3

Pitch Accuracyµ/300mm

Straightnessmm/300mm

LeadAngle

MassKg/m

d d3 d2

Length

Lead (2 x pitch) 30°

https://amironic.co.il/

https://amironic.co.il/

Page 4: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

RH / LH Trapezoidal Whirled Leadscrew1 Start : Steel & Stainless Steel : Tr16 x 4 - Tr36 x 6

LRHLSRH

MaterialLRH: Steel 080 M40 (ck40).LSRH: 303 Stainless Steel.Whirled screw left hand and right hand cut on same single piece of material to DIN 103 Grade 7e.

FeaturesTo be used with our nuts: BFM, LRM, KSM, SKM, VKM and self-lubricating plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM.Other lengths available and different material.

1618202428303236

44455666

496496496495495494494494

8 8 81010121212

LRH164-1LRH184-1LRH204-1LRH245-1LRH285-1LRH306-1LRH326-1LRH366-1

LSRH164-1LSRH184-1LSRH204-1LSRH245-1

-LSRH306-1LSRH326-1

-

PartNumber

Steel Stainless ØD(Pitch/Lead)

P b a

ØD

ba

Length = 1,000mm

P 30°

b

https://amironic.co.il/

https://amironic.co.il/

Page 5: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

D C

d x p

Square Trapezoidal Nut1 Start : Steel : ISO 2901/2903 DIN 103

VKM

MaterialCarbon Manganese Steel S300 Pb (11SMnPb37).It is possible to weld this material but difficulties may arise with bubbling due to the sulphur content.ISO 2901/2903 and DIN 103.

FeaturesTo be used with our screws: LFM, LSM.• Manual control - Low rotation speeds.• For Clamping or locking functions.• For receiving dead weights.For power transmission and continuous use, always use bronze nuts, never steel. Nuts and screws should always be lubricated with grease or oil. Steel nuts should be used with steel screws for hand motion only.

1012141618202224283032364044

23344455566677

1725252830353540454555606065

1518202428303336424548546066

150210285365470590700845

1,1751,3351,4301,9502,4002,940

0.0270.0760.0790.1190.1540.2590.2400.3540.5060.5130.8911.1631.2161.538

VKM102VKM123VKM143VKM164VKM184VKM204VKM225VKM245VKM285VKM306VKM326VKM366VKM407VKM447

VKM102/LHVKM123/LHVKM143/LHVKM164/LHVKM184/LHVKM204/LHVKM225/LHVKM245/LHVKM285/LHVKM306/LHVKM326/LHVKM366/LHVKM407/LHVKM447/LH

PartNumber

RH LH d p D CContact Surface

mm2Mass

Kg

https://amironic.co.il/

https://amironic.co.il/

Page 6: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

D C

d x p

Square Trapezoidal Nut2 Start : Steel : ISO 2901/2903 DIN 103

VKM

MaterialCarbon Manganese Steel S300 Pb (11SMnPb37).It is possible to weld this material but difficulties may arise with bubbling due to the sulphur content.ISO 2901/2903 and DIN 103.

FeaturesTo be used with our screws: LFM, LSM.• Manual control - Low rotation speeds.• For Clamping or locking functions.• For receiving dead weights.For power transmission and continuous use, always use bronze nuts, never steel. Nuts and screws should always be lubricated with grease or oil. Steel nuts should be used with steel screws for hand motion only.

121416182024303640

334445667

252528303540456060

182024283036455460

210285365470590845

1,3351,9502,400

0.0760.0790.1190.1540.2590.3540.5131.1631.216

VKM126VKM146VKM168VKM188VKM208VKM2410VKM3012VKM3612VKM4014

PartNumber

RH d p D CContact Surface

mm2Mass

Kg

https://amironic.co.il/

https://amironic.co.il/

Page 7: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

H C

d x p

Hexagonal Trapezoidal Nut1 Start : Steel : ISO 2901/2903 DIN 103

SKM

MaterialCarbon Manganese Steel S300 Pb (11SMnPb37).It is possible to weld this material but difficulties may arise with bubbling due to the sulphur content.ISO 2901/2903 and DIN 103.

FeaturesTo be used with our screws: LFM, LSM.• Manual control - Low rotation speeds.• For Clamping or locking functions.• For receiving dead weights.For power transmission and continuous use, always use bronze nuts, never steel. Nuts and screws should always be lubricated with grease or oil. Steel nuts should be used with steel screws for hand motion only.

10121416182022242830323640445060

2334445556667789

17192224273030364146505560657590

15182124273033364245485460667590

150210285365470590700845

1,1751,3351,4301,9502,4002,9403,7905,490

0.0220.0320.0490.0650.0910.1240.1250.2190.3180.4450.5670.7080.8931.5381.8893.277

SKM102SKM123SKM143SKM164SKM184SKM204SKM225SKM245SKM285SKM306SKM326SKM366SKM407SKM447SKM508SKM609

SKM102/LHSKM123/LHSKM143/LHSKM164/LHSKM184/LHSKM204/LHSKM225/LHSKM245/LHSKM285/LHSKM306/LHSKM326/LHSKM366/LHSKM407/LHSKM447/LHSKM508/LHSKM609/LH

PartNumber

RH LH d pA/F

H CContact Surface

mm2Mass

Kg

https://amironic.co.il/

https://amironic.co.il/

Page 8: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

H C

d x p

Hexagonal Trapezoidal Nut2 Start : Steel : ISO 2901/2903 DIN 103

SKM

MaterialCarbon Manganese Steel S300 Pb (11SMnPb37).It is possible to weld this material but difficulties may arise with bubbling due to the sulphur content.ISO 2901/2903 and DIN 103.

FeaturesTo be used with our screws: LFM, LSM.• Manual control - Low rotation speeds.• For Clamping or locking functions.• For receiving dead weights.For power transmission and continuous use, always use bronze nuts, never steel. Nuts and screws should always be lubricated with grease or oil. Steel nuts should be used with steel screws for hand motion only.

121416182024303640

66888

10121214

192224273036465560

182124273036455460

210285365470590845

1,3351,9502,400

0.0320.0490.0650.0910.1240.2190.4450.7080.893

SKM126SKM146SKM168SKM188SKM208SKM2410SKM3012SKM3612SKM4014

PartNumber

RH d p D CContact Surface

mm2Mass

Kg

https://amironic.co.il/

https://amironic.co.il/

Page 9: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

D h10 C

d x p

Round Trapezoidal Nut1 Start : Steel : ISO 2901/2903 DIN 103

KSM

MaterialCarbon Manganese Steel S300 Pb (11SMnPb37).It is possible to weld this material but difficulties may arise with bubbling due to the sulphur content.ISO 2901/2903 and DIN 103.

FeaturesTo be used with our screws: LFM, LSM.• Manual control - Low rotation speeds.• For Clamping or locking functions.• For receiving dead weights.For power transmission and continuous use, always use bronze nuts, never steel. Nuts and screws should always be lubricated with grease or oil. Steel nuts should be used with steel screws for hand motion only.

101214161820222428303236404450607080

2334445556667789

1010

222630364045455060606075808090

100110120

15182124273033364245485460667590

100110

150210285365470590700845

1,1751,3351,4301,9502,4002,9403,7905,4907,1408,900

0.0350.0550.0900.1550.2150.3050.3220.4400.7400.7650.7901.4701.8301.8902.6953.8655.1156.000

KSM102KSM123KSM143KSM164KSM184KSM204KSM225KSM245KSM285KSM306KSM326KSM366KSM407KSM447KSM508KSM609KSM7010KSM8010

KSM102/LHKSM123/LHKSM143/LHKSM164/LHKSM184/LHKSM204/LHKSM225/LHKSM245/LHKSM285/LHKSM306/LHKSM326/LHKSM366/LHKSM407/LHKSM447/LHKSM508/LHKSM609/LHKSM7010/LHKSM8010/LH

PartNumber

RH LH d p D h10 CContact Surface

mm2Mass

Kg

https://amironic.co.il/

https://amironic.co.il/

Page 10: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

D h10 C

d x p

Round Trapezoidal Nut2 Start : Steel : ISO 2901/2903 DIN 103

KSM

MaterialCarbon Manganese Steel S300 Pb (11SMnPb37).It is possible to weld this material but difficulties may arise with bubbling due to the sulphur content.ISO 2901/2903 and DIN 103.

FeaturesTo be used with our screws: LFM, LSM.• Manual control - Low rotation speeds.• For Clamping or locking functions.• For receiving dead weights.For power transmission and continuous use, always use bronze nuts, never steel. Nuts and screws should always be lubricated with grease or oil. Steel nuts should be used with steel screws for hand motion only.

121416182022242830323640

66888

10101012121214

263036404545506060607580

182124273033364245485460

210285365470590700845

1,1751,3351,4301,9502,400

0.0550.0900.1550.2150.3050.3220.4400.7400.7650.7901.4701.830

KSM126KSM146KSM168KSM188KSM208KSM2210KSM2410KSM2810KSM3012KSM3212KSM3612KSM4014

PartNumber

RH d p D CContact Surface

mm2Mass

Kg

https://amironic.co.il/

https://amironic.co.il/

Page 11: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

D h10 C

d x p

Round Trapezoidal Nut1 Start : Bronze : ISO 2901/2903 DIN 103

LRM

MaterialBronze CC493K (CuSn7ZnPb).ISO 2901/2903 and DIN 103 tolerance 7H.

FeaturesTo be used with our screws: LFM, LSM.• Manual or powered control - low and medium rotation speeds.• For working under load.For power transmission and continuous use, always use bronze nuts, never steel. Nuts and screws should always be lubricated with grease or oil.

1012141618202224283032364044506070

2334445556667789

10

222630364045455060606075808090

100110

2024283236404448566064728088

100120140

200280380490630790940

1,1301,5701,7801,9102,6103,2103,9205,0607,320

10,000

0.0530.0830.1350.2320.3200.4550.4800.6561.1021.1401.1772.1892.7252.8154.0145.1507.805

LRM102LRM123LRM143LRM164LRM184LRM204LRM225LRM245LRM285LRM306LRM326LRM366LRM407LRM447LRM508LRM609LRM7010

LRM102/LHLRM123/LHLRM143/LHLRM164/LHLRM184/LHLRM204/LHLRM225/LHLRM245/LHLRM285/LHLRM306/LHLRM326/LHLRM366/LHLRM407/LHLRM447/LHLRM508/LHLRM609/LH

-

PartNumber

RH LH d p D h10 CContact Surface

mm2Mass

Kg

https://amironic.co.il/

https://amironic.co.il/

Page 12: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

D h10 C

d x p

Round Trapezoidal Nut2 Start : Bronze : ISO 2901/2903 DIN 103

LRM

MaterialBronze CC493K (CuSn7ZnPb).ISO 2901/2903 and DIN 103 tolerance 7H.

FeaturesTo be used with our screws: LFM, LSM.• Manual or powered control - low and medium rotation speeds.• For working under load.For power transmission and continuous use, always use bronze nuts, never steel. Nuts and screws should always be lubricated with grease or oil.

121416182022242830323640

66888

10101012121214

263036404545506060607580

242832364044485660647280

280380490630790940

1,1301,5701,7801,9102,6103,210

0.0830.1350.2320.3200.4550.4800.6561.1021.1401.1772.1892.725

LRM126LRM146LRM168LRM188LRM208LRM2210LRM2410LRM2810LRM3012LRM3212LRM3612LRM4014

PartNumber

RH d p D CContact Surface

mm2Mass

Kg

https://amironic.co.il/

https://amironic.co.il/

Page 13: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

L1L2

d x p

D4

D1

Flanged Trapezoidal Nut1 Start : Bronze : ISO 2901/2903 DIN 103

FMR

MaterialBronze CC493K (CuSn7ZnPb).ISO 2901/2903 and DIN 103 tolerance 7H.

FeaturesTo be used with our screws: LFM, LSM.• Manual or powered control - low and medium rotation speeds.• For working under load.For power transmission and continuous use, always use bronze nuts, never steel. Nuts and screws should always be lubricated with grease or oil.

10121416202430364050

2334456678

20243030385058808090

35425252627790

115140170

15202424263348606570

6 71010111315202020

150228315363514780

1,4302,1662,6104,237

0.0680.1200.2600.2500.4000.7501.4003.2004.1005.900

FMR102FMR123FMR143FMR164FMR204FMR245FMR306FMR366FMR407FMR508

FMR102/LHFMR123/LHFMR143/LHFMR164/LHFMR204/LHFMR245/LHFMR306/LHFMR366/LHFMR407/LHFMR508/LH

PartNumber

RH LH d p D1 D4 L1 L2

Contact Surface

mm2Mass

Kg

https://amironic.co.il/

https://amironic.co.il/

Page 14: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

L1L2

d x p

D4

D1

Flanged Trapezoidal Nut2 Start : Bronze : ISO 2901/2903 DIN 103

FMR

MaterialBronze CC493K (CuSn7ZnPb).ISO 2901/2903 and DIN 103 tolerance 7H.

FeaturesTo be used with our screws: LFM, LSM.• Manual or powered control - low and medium rotation speeds.• For working under load.For power transmission and continuous use, always use bronze nuts, never steel. Nuts and screws should always be lubricated with grease or oil.

12162024303640

688

10121214

24303850588080

4252627790

115140

20242633486065

7121212141616

262363514780

1,4302,1662,610

0.1200.2500.4000.7501.4003.2004.100

FMR126FMR168FMR208FMR2410FMR3012FMR3612FMR4014

PartNumber

RH d p D1 D4 L1 L2

Contact Surface

mm2Mass

Kg

https://amironic.co.il/

https://amironic.co.il/

Page 15: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

Flanged Trapezoidal Nut1 Start : Bronze : ISO 2901/2903 DIN 103

BFM

MaterialBronze CC493K (CuSn7ZnPb).ISO 2901/2903 and DIN 103 tolerance 7H.

FeaturesTo be used with our screws: LFM, LSM.• Manual or powered control - low and medium rotation speeds.• For working under load.For power transmission and continuous use, always use bronze nuts, never steel. Nuts and screws should always be lubricated with grease or oil.

L1±0.2

L2

d x p

D4 h11

D1D1 h9 -0.2-0.3

D5

D6

L3

1012141618202224283032364044506070

2334445556667789

10

2528282828323232383845456363728895

4248484848555555626270709595

110130140

343838383845454550505858787890

110120

56666777777799

111313

25353535354444444646545466667590

105

1012121212121212141416161616182022

6888888888

10101212141617

250400460530610870

1,0301,0401,2001,3701,7101,9502,6502,9404,5405,4907,500

0.0160.2660.2580.2440.2280.3460.3220.3040.4420.4080.7060.6061.7001.5242.3243.9424.465

BFM102BFM123BFM143BFM164BFM184BFM204BFM225BFM245BFM285BFM306BFM326BFM366BFM407BFM447BFM508BFM609BFM7010

BFM102/LHBFM123/LHBFM143/LHBFM164/LHBFM184/LHBFM204/LHBFM225/LHBFM245/LHBFM285/LHBFM306/LHBFM326/LHBFM366/LHBFM407/LHBFM447/LHBFM508/LHBFM609/LHBFM7010/LH

PartNumber

RH LH d p D1 D4 h11 D5Holes

D6 L1±0.2 L2 L3

Contact Surface

mm2Mass

Kg+0.15-0.00

+0.00-0.15

https://amironic.co.il/

https://amironic.co.il/

Page 16: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

Flanged Trapezoidal Nut2 Start : Bronze : ISO 2901/2903 DIN 103

BFM

MaterialBronze CC493K (CuSn7ZnPb).ISO 2901/2903 and DIN 103 tolerance 7H.

FeaturesTo be used with our screws: LFM, LSM.• Manual or powered control - low and medium rotation speeds.• For working under load.For power transmission and continuous use, always use bronze nuts, never steel. Nuts and screws should always be lubricated with grease or oil.

L1±0.2

L2

d x p

D4 h11

D1D1 h9 -0.2-0.3

D5

D6

L3

121416182022242830323640

66888

10101012121214

282828283232323838454563

484848485555556262707095

383838384545455050585878

666677777779

353535354444444646545466

121212121212121414161616

888888888

101012

400460530610870

1,0301,0401,2001,3701,7101,9502,650

0.2660.2580.2440.2280.3460.3220.3040.4420.4080.7060.6061.700

BFM126BFM146BFM168BFM188BFM208BFM2210BFM2410BFM2810BFM3012BFM3212BFM3612BFM4014

PartNumber

RH d p D1 D4 h11 D5Holes

D6 L1±0.2 L2 L3

Contact Surface

mm2Mass

Kg+0.15-0.00

+0.00-0.15

https://amironic.co.il/

https://amironic.co.il/

Page 17: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

Round Trapezoidal Nut1 Start : iglidur® W300 Self Lubricating : ISO 2901/2903 DIN 103

WSRMWSLM

MaterialPlastic iglidur® W300.Density: 1.24g/cm3.Max. Moisture Absorption at 23°C/50% r.h.: 1.3% of mass.Max. Moisture Absorption: 6.5% of mass.Max. Dry PV Value: 0.23 MPa • m/s.Modulus of Elasticity: 3,500 MPa.Tensile Strength at +20°C: 125 MPa.Compressive Strength: 61 MPa.Shore D Hardness: 77.Max. Long Term Application Temp.: +90°C.Max. Short Term Application Temp.: +180°C.Min. Application Temp.: -40°C.Thermal Conductivity: 0.24 W/m•K. Coefficient of Thermal Expansion at +23°C: 9 K-1 • 10-5.Specific Volume Resistance: >1013 Ωcm.Surface Resistance: >1012 Ω. Some sizes available in iglidur® A180 FDA approved material on request, P.O.A. Shorter lengths and anti-Backlash nuts available, P.O.A.

Features• Especially long service life.• Low coefficient of friction.• Extremely high wear resistance and good resistance to dirt.

1012161820242830

23444556

2226364045506060

2024323640485660

282394752904

1,1301,6202,2402,542

1,4101,9703,7604,5205,6508,100

11,20012,710

WSRM102WSRM123WSRM164WSRM184WSRM204WSRM245WSRM285WSRM306

WSLM102WSLM123WSLM164WSLM184WSLM204WSLM245WSLM285WSLM306

PartNumber

RH LH d p D h10 CContact Surface

mm2

Max. Static FAxial

(N)

D h10 C

d x p

45° chamfer

https://amironic.co.il/

https://amironic.co.il/

Page 18: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

A

A

d1

b1

d5

b2

d2 d4d3

Flanged Trapezoidal Nut1 Start : iglidur® W300 Self Lubricating : ISO 2901/2903 DIN 103

WFRMWFLM

MaterialPlastic iglidur® W300Density: 1.24g/cm3.Max. Moisture Absorption at 23°C/50% r.h.: 1.3% of weight.Max. Moisture Absorption: 6.5% of weight.Max. Dry PV Value: 0.23 MPa • m/s.Modulus of Elasticity: 3,500 MPa.Tensile Strength at +20°C: 125 MPa.Compressive Strength: 61 MPa.Shore D Hardness: 77.Max. Long Term Application Temp.: +90°C.Max. Short Term Application Temp.: +180°C.Min. Application Temp.: -40°C.Thermal Conductivity: 0.24 W/m•K. Coefficient of Thermal Expansion at +23°C: 9 K-1 • 10-5.Specific Volume Resistance: >1013 Ωcm.Surface Resistance: >1012 Ω.Some sizes available in iglidur® A180 FDA approved material on request, P.O.A.

Features• Especially long service life.• Low coefficient of friction.• Extremely high wear resistance and good resistance to dirt.

1012161820242830

23444556

2528282832323838

4248484855556262

3438383845455050

56667777

2535353544444646

1012121212121414

352576768878

1,2421,4841,8401,948

1,7602,8803,8404,3906,2107,4205,9004,470

WFRM102WFRM123WFRM164WFRM184WFRM204WFRM245WFRM285WFRM306

WFLM102WFLM123WFLM164WFLM184WFLM204WFLM245WFLM285WFLM306

PartNumber

RH LH d p d2 d3 d4 d5 b1 b2

Contact Surface

mm2

Max. Static F

Axial (N)

https://amironic.co.il/

https://amironic.co.il/

Page 19: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

Round Trapezoidal Nut1 Start : iglidur® J Self Lubricating : ISO 2901/2903 DIN 103

JSRMJSLM

MaterialPlastic iglidur® J.Density: 1.49g/cm3.Max. Moisture Absorption at 23°C/50% r.h.: 0.3% of mass.Max. Moisture Absorption: 1.3% of mass.Max. Dry PV Value: 0.34 MPa • m/s.Modulus of Elasticity: 2,400 MPa.Tensile Strength at +20°C: 73 MPa.Compressive Strength: 60 MPa.Shore D Hardness: 74.Max. Long Term Application Temp.: +90°C.Max. Short Term Application Temp.: +120°C.Min. Application Temp.: -50°C.Thermal Conductivity: 0.25 W/m•K. Coefficient of Thermal Expansion at +23°C: 10 K-1 • 10-5.Specific Volume Resistance: >1013 Ωcm.Surface Resistance: >1012 Ω. Some sizes available in iglidur® A180 FDA approved material on request, P.O.A. Shorter lengths and anti-Backlash nuts available, P.O.A.

Features• Low wear and low coefficients of friction running dry.• Vibration damping.• Good chemical resistance• Low moisture absorption.

D h10 C

d x p

45° chamfer

1012161820242830364050

23444556666

2226364045506060757690

20243236404856607280

100

282394752904

1,1301,6202,2402,5423,7324,5827,225

1,1281,5763,0083,6164,5206,4808,960

10,16815,27417,83720,400

JSRM102JSRM123JSRM164JSRM184JSRM204JSRM245JSRM285JSRM306JSRM366JSRM407JSRM508

JSLM102JSLM123JSLM164JSLM184JSLM204JSLM245JSLM285JSLM306JSLM366JSLM407JSLM508

PartNumber

RH LH d p D h10 CContact Surface

mm2

Max. Static FAxial

(N)

https://amironic.co.il/

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Page 20: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

A

A

d1

b1

d5

b2

d2 d4d3

Flanged Trapezoidal Nut1 Start : iglidur® J Self Lubricating : ISO 2901/2903 DIN 103

JFRMJFLM

MaterialPlastic iglidur® J.Density: 1.49g/cm3.Max. Moisture Absorption at 23°C/50% r.h.: 0.3% of mass.Max. Moisture Absorption: 1.3% of mass.Max. Dry PV Value: 0.34 MPa • m/s.Modulus of Elasticity: 2,400 MPa.Tensile Strength at +20°C: 73 MPa.Compressive Strength: 60 MPa.Shore D Hardness: 74.Max. Long Term Application Temp.: +90°C.Max. Short Term Application Temp.: +120°C.Min. Application Temp.: -50°C.Thermal Conductivity: 0.25 W/m•K. Coefficient of Thermal Expansion at +23°C: 10 K-1 • 10-5.Specific Volume Resistance: >1013 Ωcm.Surface Resistance: >1012 Ω. Some sizes available in iglidur® A180 FDA approved material on request, P.O.A..

Features• Low wear and low coefficients of friction running dry.• Vibration damping.• Good chemical resistance• Low moisture absorption.

1012161820242830

23444556

2528282832323838

4248484855556262

3438383845455050

56667777

2535353544444646

1012121212121414

352576768878

1,2421,4841,8401,948

1,7602,8803,8404,3906,2107,4205,9004,470

JFRM102JFRM123JFRM164JFRM184JFRM204JFRM245JFRM285JFRM306

JFLM102JFLM123JFLM164JFLM184JFLM204JFLM245JFLM285JFLM306

PartNumber

RH LH d p d2 d3 d4 d5 b1 b2

Contact Surface

mm2

Max. Static F

Axial (N)

https://amironic.co.il/

https://amironic.co.il/

Page 21: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

D h10 C

d x p

Round Trapezoidal Nut1 Start : Nylon : ISO 2901/2903 DIN 103

LKM

MaterialMachined Nylon PA 6.6 (Black).ISO 2901/2903 and DIN 103 tolerance 7H.

FeaturesTo be used with our screws: LFM, LSM.• Manual or powered control - Medium and high rotation speeds.• For working under moderate loads.• Very low sound level.• Gives very good results with Steel or Stainless screws.• Can be used without lubrication but at reduced service life.

12162024303640

3445667

26364550607580

24324048607280

280490790

1,1301,7802,6103,210

0.0120.0320.0600.0880.1500.3000.370

LKM123LKM164LKM204LKM245LKM306LKM366LKM407

LKM123/LHLKM164/LHLKM204/LHLKM245/LHLKM306/LHLKM366/LHLKM407/LH

PartNumber

RH LH d p D h10 CContact Surface

mm2Mass

Kg

https://amironic.co.il/

https://amironic.co.il/

Page 22: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

L I N E A R M O T I O N

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

D h10 C

d x p

Round Trapezoidal Nut2 Start : Nylon : ISO 2901/2903 DIN 103

LRM

MaterialMachined Nylon PA 6.6 (Black).ISO 2901/2903 and DIN 103 tolerance 7H.

FeaturesTo be used with our screws: LFM, LSM.• Manual or powered control - Medium and high rotation speeds.• For working under moderate loads.• Very low sound level.• Gives very good results with Steel or Stainless screws.• Can be used without lubrication but at reduced service life.

12162024303640

6 8 810121214

26364550607580

24324048607280

280490790

1,1301,7802,6103,210

0.0120.0320.0600.0880.1500.3000.370

LKM126LKM168LKM208LKM2410LKM3012LKM3612LKM4014

PartNumber

RH d p D CContact Surface

mm2Mass

Kg

https://amironic.co.il/

https://amironic.co.il/

Page 23: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

TE

CH

NIC

AL

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

L I N E A R M O T I O N

Advantages• Self lubricating• Resistant to dirt• Maintenance free• Best resistance to galling• Corrosion free• Quiet operation• Temperature resistant up to +90°C• Trapezoidal lead screws manufactured from Steel, Stainless and anodised Aluminium on request.• Left-handed leadscrew nuts on request.

Until now, there have been two types of trapezoidal lead screw nuts on the market; lubricated metallic nuts (Steel, Bronze, Brass etc.) without emergency running properties, and maintenance free versions made of plastic such as PA 6.6 or POM with very restricted load capacity. iglidur® maintenance free trapezoidal lead screw nuts are now closing the gap - they are fully maintenance free and take high loads.The new Trapezoidal lead screw nuts add to the range of the maintenance free and dry running products for linear technology.The iglidur® lead screw nuts offer considerable advantages over nuts which require maintenance and lubrication especially in applications using detergents such as those of the packaging industry or in areas with high dust contamination (textile machines).

The iglidur® lead screw nuts are manufactured to DIN 103.

Calculations of the trapezoidal thread loadsThe load capacity of the trapezoidal lead screw nuts made of high performance polymers depends on the surface pressure, the speed and the resulting temperature.The temperature ratio will be affected by the frequency as well as by the lead screw material and its thermal properties.The surface pressure of the iglidur® trapezoidal lead screw nut should not permanently exceed 5 MPa.p x v Valuemax 0.08 MPa x m/sThe permissible feeds and speeds can be determined for each thread size with the pxv value and the running surfaces given in the dimension table.Required (running surface):Ae = Faxial / ppermissible (mm2)

Selection of the thread size and determination of the effective surface pressure:peff = Faxial / Ae eff (MPa)

Permissible sliding speed:Vslide = p x vmax / peff (m/s)

Maximum permissible RPM:N = Vslide x 1.000 x 60 / (p x d1 ) (1/mm)

Feed Speed:Vfeed = n x P / 60.000 (m/s)

Faxial Axial forceppermissible Max. permissible surface pressure 5 MPapeff Effective surface pressure on a specific thread sizeAE eff Effective supporting surface of the selected trapezoidal lead screw nutP Pitchd1 Effective diameter

Trapezoidal Leadscrew Nutsiglidur® Self Lubricating : DIN 103, ISO 2903

Can be used for high loads

Maintenance free

Very light weightvibration

dampening

https://amironic.co.il/

https://amironic.co.il/

Page 24: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

TE

CH

NIC

AL

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

L I N E A R M O T I O N

Dimensions of Screw and NutThe screw has to withstand the applied torque and also carry the load. The length of engagement between the nut and screw must be sufficient to avoid shearing and too rapid wear. In practice, it is nearly always the latter which determines the length of nut. The screw, if in compression, will also have to be considered as a column, and the J B Johnson or Euler formula applied. Since the torque is a function of the pitch diameter, which itself cannot be calculated until the minor diameter is known, the screw diameter must be selected by a trial and error solution. Therefore a trial solution for the minor diameter area is made considering only the normal stress. Use the following equation;

Ai = W x fs

Sy

Then a nominal thread is selected having a minor diameter equal to, or exceeding that calculated. It is now possible to ascertain the tangent of the helix angle;

tan λ = P

π d

With this information the torque can be calculated;

T = Wd (cos α tan λ + µ) 2 cos α - µtan λ

The next step is to find the torsional shear stress;

Ss = 16T

πdi3

And the normal stress on the minor diameter section for screws in tension;

S = W

AiFor screws in compression, we must take into account the bending stresses, since the screw is acting as a column, and J B Johnson or Euler formula will apply. Use the following equation to determine which formula is applicable;

a) L

<

2Cπ2 E

b) L

> 2Cπ2 E

K Sy K SyIf a) applies, then the screw conforms to the Johnson formula;

S = W 1 Ai

1 - [ Sy (L/K)2 ] 4Cπ2EIf b) applies, then the screw conforms to the Euler formula;

S = W Sy (L/K)2

Ai Cπ2EHaving obtained a value for ‘S’ from one of the above equations a solution can be made for the factor of safety, taking into account all the stresses.

fs = Sy/2

(S)2 +

(Ss)2

2This is then compared with the originally selected design value, and a decision can be made as to whether this is adequate, or whether another solution must be calculated.It is advisable to check at this stage the length of the nut necessary to give acceptable bearing pressure on the thread flanks to ensure a satisfactory service life;

Le = 4Wp

π B (do2 - di2)The length of the nut should not exceed 3d, or manufacturing difficulties will arise, and if the nut length is found to be excessive, then re-calculation will be necessary using a larger screw diameter and alternative pitch. A multiple start thread will reduce the pitch-line sliding speed, and this alone may solve the problem of excessive bearing pressure. Finally, a check should be made on the factor of safety provided by the screw threads in shear;

Screw fs = Le π di ti Ssy

Nut fs = Le π do to Ssy

Wp Wp

Efficiency of a Screw Threade = tan λ

( cos α - µ tan λ ) cos α tan λ + µ

Self Locking ThreadsA screw will be self-sustaining if m exceeds cos m tan l.

Symbols Used in EquationsAi = Area of screw minor diameterB = Allowable bearing pressure (see graph)C = End fixity coefficient (C = 2 for fixed ends)d = Effective diameter of threaddi = Minor diameter of threaddo = Major diameter of threadE = Modulus of elasticity of materialfs = Factor of safetyI = Second moment of inertia

K = I

= radius of gyration of cross-section Ai L = Length of shaft, unsupported Le = Length of engagement = length of nutp = Pitch of threadP = Lead of thread (pitch x No. of starts)SS = Torsional shear stressSSy = Shear stress yield point of materialT = Torqueti = Thread thickness, minor diameterto = Thread thickness, major diameterW = Axial loadλ = Helix angleα = Flank angle (15° Trapezoidal)µ = Coefficient of friction (can be taken as 0.15)

Trapezoidal Leadscrews

0 20 40 60 80 100Pitch line sliding - ft/min.

Perm

issib

le B

earin

g Pr

essu

re -

lbs/

in2

2000

1500

1000

500

Graph of Speed/Allowable PressureSteel screws and bronze or cast iron nuts only

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Page 25: LINEAR - Amironic · 2017. 9. 7. · plastic WSRM & WSLM, WFRM & WFLM, JSRM & JSLM and JFRM & JFLM). Special nuts can also be made - please ask for a quote. 316L Stainless Steel ensures

TE

CH

NIC

AL

Product information updated July 2017 and subject to change. Please click the product links for prices and availability.

L I N E A R M O T I O N

Load v Speed (Steel screws with Bronze nuts) (May need correction for nut length (lg)

Bucking Load v Screw Length

To select the correct screw for your application you will find it helpful to refer to the chart. This shows the screw required for various loads and linear speeds. It takes into account flank loads to give satisfactory life. If in compression consideration must also be given to the screw as a column. When used in tension the figures given will normally allow an adequate safety factor (steel screw with bronze nuts), use lowest figure from either table.

Linear speed (mm/min): 125 250 375 500 625 750 875 1000 1250 1500 1750 2000Rpm:Load Kg:Rpm:Load Kg:Rpm:Load Kg:Rpm:Load Kg:Rpm:Load Kg:Rpm:Load Kg:Rpm:Load Kg:Rpm:Load Kg:

Tr 12 x 325lg

Tr 16 x 429lg

Tr 20 x 432lg

Tr 24 x 545lg

Tr 32 x 660lg

Tr 40 x 660lg

Tr 50 x 890lg

Tr 60 x 9115lg

42700

301,050

311,330

252,360

214,100

214,950

169,300

1314,300

83560

70860

621,080

501,900

423,230

423,630

316,950

2510,800

125475100680

94875

751,500

632,530

632,730

475,300

388,250

167400125610125700100

1,22083

2,05083

2,15063

4,10050

6,600

208330150520156580125

1,020104

1,670104

1,58078

3,20063

5,200

250280200380187470150850125

1,600125

1,47094

2,38075

3,950

292240250280219380175680146

1,020146740109

1,70088

2,800

333200300220250300200530167770167500125

1,150100

2,000

417150350170312170250300208420208250156550125

1,050

500100400120375100300170250230250150188380150600

583 60450 90437 60350100292150292

-219

-175415

667 60500 68500 60400 75333115333

-250

-200

-

ThreadDimensions

Perm-tensile Force (Kg) 0.15 0.20 0.30 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 3.00 4.00 5.00

Screw Length (m)

330570710

1,0401,8902,6903,9804,3405,1106,8308,300

10,46012,51013,53014,55020,03027,810

Tr 10 x 3Tr 12 x 3Tr 14 x 4Tr 16 x 4Tr 20 x 4Tr 24 x 5Tr 28 x 5Tr 30 x 6Tr 32 x 6Tr 36 x 6Tr 40 x 7Tr 44 x 7Tr 48 x 8Tr 50 x 8Tr 52 x 8Tr 60 x 9Tr 70 x 10

136393612

--------------

75221345740

-------------

3398

153329

1,0852,202

-----------

123555

118391794

1,7322,0622,8605,1207,560

------

5152445

173353770918

1,2712,2803,3605,3307,3508,940

10,53019,570

-

38

132997

198433517715

1,2801,8903,0003,9505,0206,045

1100021,200

-58

1962

127277330458820

1,2101,9202,6103,2183,8157,050

13,570

-36

134388

192229318569840

1,3321,8602,2302,6104,8909,420

--

49

3164

141168233418617980

1,3701,6401,9253,5956,920

--

37

2449

108129178320472750

1,0201,2551,4852,7505,300

--

25

193985

102141253377593850993

1,1502,1784,180

---

415316982

114205302480670804940

1,7613,390

---

31022485779

142210333460558660

1,2222,352

---

16

1227324480

118187245314375688

1,325

----37

1720285175

120175201230440848

Bucking Load(kg)

Improvement of the Mechanical Properties: Gain reaching 30% on hardness and 12% on breaking strength, in fact the fibres of the material are formed but not cut as in the case of cutting.

The ProcessCold-formed threading, more commonly called rolling, implies the cold forming of a metal bar by pressing during rotation with tools called dies, in order to obtain a thread or a knurling. Thanks to this performing process, we manufacture amongst others metric, trapezoidal threads and ball screws, using different materials such as current and special steels, stainless steel, brass and numerous alloys.

Economic EfficiencyThe process of rolling allows a high production and an important saving in material as the diameter used is below nominal and unlike cutting it has no chips, thus no material loss.

ComparisonsThe roller finishing on the surface considerably increases the life time of the screw or of the nut, improves fatigue strength and eliminates the starting points of the fracture.

37.4µ3.85µ

Trapezoidal Leadscrews

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