0303-0304 F04-04 cENG - MISUMI India: Industrial ...Other than the MX Lubrication Units, MISUMI...
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Linear Bushings Cautions on Selection and Usage / Various Greases Reference: Tolerance range of O.D. of linear bushings and diameter of housing made by MISUMI Product Customer's design I.D. dr O.D. (D) Housing Dia. Tolerance Tolerance H7 3 7 0 - 0.009 7 +0.015 0 4 8 8 5 10 10 6 12 0 - 0.011 12 +0.018 0 8 15 15 10 19 0 - 0.013 19 +0.021 0 12 21 21 13 23 23 16 28 28 20 32 0 - 0.016 32 +0.025 0 25 40 40 30 45 45 35 52 0 - 0.019 52 +0.030 0 40 60 60 50 80 80 Q Mounting with Retaining Ring Housing Retaining Ring Stopper Housing Housing Retaining Ring QMounting with Stoppers Structure of Linear Bushings Outer Cylinder Side Ring Retainer Steel Balls • Linear Bushings are used in combination with Linear Shafts, and it is the linear motion mechanism utilizing rolling steel balls for unlimited linear motion. • Linear bushings imparts unlimited stroke linear motion on shafts by steel balls recirculating within the raceway grooves formed by the outer cylinder and retainer. • Can obtain linear motion with lower friction and high accuracy compared to slide bearings, and used for many applications such as transfer equipment and semiconductor manufacturing systems. Cautions on Selection and Usage For MISUMI linear bushings, use in combination with MISUMI shafts (hardened with g6 tolerance) is recommended. For MISUMI Linear Bushings, mounting Housing of H7 tolerance is recommended. Bushing and Housing will be clearance fit. 3If large moment load (offset load) is to be applied, Short/Single Type Linear Bushings are not suitable. Use of Double Type or Multiple Linear Bushings is recommended. 2Linear Bushings are not suitable for rotating motion and uses that need repetitive insertion and extraction from shafts.Forced use may prove to be the cause of damage. 1Use Retaining Ring (Snap Ring), Stoppers, etc., when mounting Linear Bushings and Housing. Selection / Assembly 4When assembling with linear shafts, forcing the shaft into the bushing with angular misalignment may cause the ball retainers to deform and balls to fall out. Be sure to align the centers and insert the shaft gently. • At the time of delivery Other than the MX Lubrication Units, MISUMI Linear Bushings are applied with Anti-rust Oil harmless to the bearing lubrication greases. After de-greasing the Antirust Oil, application of grease is recommended. L, G, and H Grease filled types are also available. The MX Lubrication Units are filled with lithium soap-based grease. • Maintenance Before usage, apply grease to the ball rows within the Linear bushings, then periodically apply grease during the use. The grease has an effect of reducing friction by forming a layer between the balls and shaft rolling surfaces, preventing seizures. Grease loss and deterioration will cause shorter life of linear guides. Recommended Grease: Lithium soap based grease (Alvania Grease S2 by Showa Shell Sekiyu). Recommended Greasing Interval: Normally 6 months * Every 3 month when travel distance is extensive, or every 1000km. Lubrication and Maintenance Salt water spray testing method conforms to JIS H8502. Testing Sample: Flanged Linear Bushing Single Type Antirust Performance SUJ2 Equivalent SUS440C Electroless Nickel Plating Low Temperature Black Chrome Plating Before Test 72 hr 168 hr (Ref. Data) Antirust Performance Comparison Test • Low temperature black chrome plating on linear bushings is 5µm of fluoropolymer layer chemically deposited as a black film, and it has a long-lasting rust prevention effect. • Additionally, the coating is resistant to cracking from extreme and repeated bending. • Low temperature black chrome plated shafts are suitable for places where rusting or reflection of light is undesirable. (Note) No surface treatment is applied to I.D. surface of low temperature black chrome plated linear bushings. * Photograph shows the condition of Linear Bushing after Sliding Test (Sliding Test Conditions) 50km sliding test was conducted with a 412N load on the linear bushing. No performance degradation after the test. QLinear Bushing Models Applicable to Low Temperature Black Chrome Plating Straight Applicable I.D. Page Single LMUR Ø3~Ø30 P.315,316 Double LMUWR Ø5~Ø30 Flanged Type Applicable I.D. Page Single LHF#R Ø6~Ø30 P.305 Double LHF#WR P.306 * For details, refer to each page. Low Temperature Black Chrome Plating Linear Bushings: LMUR12 Linear Shafts : RSFJ12 Linear Bushings Double -303 1 -304 1 Fitting Design Bushing Bushing Shaft Housing [Fitting of Shaft O.D. and Bushing I.D.] [Fitting of Bushing O.D. and Housing I.D.] Reference: Tolerance range of I.D. of linear bushings and O.D. of shafts made by MISUMI Dimension (mm) Linear Bushings Single Type (LMU) I.D. Tolerance Shaft (SFJ) O.D. Tolerance (g6) 0 Ø3~5 Ø6~16 Ø20~30 Ø35~50 -0.001 -0.002 Ø3 -0.003 -0.004 Ø4~6 -0.005 Ø8~10 -0.006 Ø12~18 -0.007 Ø20~30 -0.008 -0.009 Ø35~50 -0.010 -0.011 -0.012 -0.013 -0.014 -0.015 -0.016 -0.017 -0.018 -0.019 -0.020 -0.021 -0.022 -0.023 -0.024 -0.025 QProducts with Filled Grease Options Applicable Products Shaft Dia. dr Unit Price (Price for Grease Filling Service) Shaft Dia. dr ≤10 12≤ Shaft Dia. dr ≤30 35≤ Shaft Dia. dr P.305~P.335 Linear Bushing Related EProducts below are excluded. • Linear bushings without seals • Linear Ball Bushings P.336 3~50 QGrease Performance Item Conditions Unit Measurement Method L Type G Type H Type Thickener - - - Aromatic Diurea Lithium Type Aluminum Complex Soap Base Oil - - - Ether Synthetic Oil Mineral Oil + Synthetic Hydrocarbon Oil USP White Oil Base Oil Kinetic Viscosity 40°C mm 2 /s JIS K2220 5.19 103 30 105 100°C 12.8 - 11.5 Miscible Consistency - - JIS K2220 5.3 280 207 310 Dropping Point - °C JIS K2220 5.4 <260 200 238 Evaporation Amount 99°Cx22hr wt% - 0.15% 1.40% 0.27%(ASTMD-972) Oil Separation 100°Cx24hr wt% JIS K2220 514 1.2% 0.8% 2.1%(ASTMD-1742) Operating Temp. In Air °C - -40~200 -10~80 -12~170 <Test Equipment for G Type Grease Comparison> QComparison of Particle Generation Small Clean Unit with a HEPA Filter Linear Bushings Tested Recorder Counter Particle <Testing Condition> Linear Bushing Used Liner Motion Speed Stroke Environment Temperature Humidity Particle Counter LHFS16 (Regular Type) LHFS16G (G Type) 20m/min 100mm Inside Clean Booth (Class100) 22.5°C±2°C 50wt% Made by Rion Co. Ltd. KC03A1 0 20 40 60 80 100 120 140 0 10 20 30 40 50 60 70 80 Particle Generation (Particle/cf) Time (hr) Comparison of Particle Generation Amount (0.3μm or more) Regular Type G Type * The data above are for reference only, and not guaranteed by the manufacturer. E To place an order, add L, G, or H after Part Number of Regular Type. Part Number LMU12L LMU12G LMU12H (L Type Greased) (G Type Greased) (H Type Greased) Grease Service Type Product Name Main Features L Type ET−100K (Made by Kyodo Yushi) Superior heat resistance and oxidation stability. Also high adhesion and cohesion with limited splash or leakage. G Type LG2 (Made by NSK Ltd.) Suitable for clean environment due to low particle generation grease. Also good anti-rusting characteristics. H Type FGL(Lubriplate ® ) Suitable for food, beverage and pharmaceutical industries. (NSF H-1 Reg. NO.043534) Service to apply greases shown below at the time of shipping. Grease Performance
Transcript of 0303-0304 F04-04 cENG - MISUMI India: Industrial ...Other than the MX Lubrication Units, MISUMI...
Linear BushingsCautions on Selection and Usage / Various Greases
Reference: Tolerance range of O.D. of linear bushings and diameter of housing made by MISUMI
Product Customer's designI.D.dr
O.D. (D) Housing Dia.Tolerance Tolerance H7
3 70
- 0.009
7+0.015
04 8 85 10 106 12 0
- 0.01112 +0.018
08 15 1510 19
0- 0.013
19
+0.0210
12 21 2113 23 2316 28 2820 32
0- 0.016
32+0.025
025 40 4030 45 4535 52
0- 0.019
52+0.030
040 60 6050 80 80
Q Mounting with Retaining Ring
StopperHousing
HousingRetaining Ring StopperHousing
HousingRetaining Ring
Housing
Retaining Ring
Q Mounting with Stoppers
Structure of Linear Bushings
Outer Cylinder
Side Ring
Retainer
Steel Balls
• Linear Bushings are used in combination with Linear Shafts, and it is the linear motion mechanism utilizing rolling steel balls for unlimited linear motion.
• Linear bushings imparts unlimited stroke linear motion on shafts by steel balls recirculating within the raceway grooves formed by the outer cylinder and retainer.
• Can obtain linear motion with lower friction and high accuracy compared to slide bearings, and used for many applications such as transfer equipment and semiconductor manufacturing systems.
Cautions on Selection and Usage
For MISUMI linear bushings, use in combination with MISUMI shafts (hardened with g6 tolerance) is recommended.
For MISUMI Linear Bushings, mounting Housing of H7 tolerance is recommended. Bushing and Housing will be clearance fit.
3If large moment load (offset load) is to be applied, Short/Single Type Linear Bushings are not suitable. Use of Double Type or Multiple Linear Bushings is recommended.
2Linear Bushings are not suitable for rotating motion and uses that need repetitive insertion and extraction from shafts.Forced use may prove to be the cause of damage.
1Use Retaining Ring (Snap Ring), Stoppers, etc., when mounting Linear Bushings and Housing.
Selection / Assembly
4When assembling with linear shafts, forcing the shaft into the bushing with angular misalignment may cause the ball retainers to deform and balls to fall out. Be sure to align the centers and insert the shaft gently.
• At the time of deliveryOther than the MX Lubrication Units, MISUMI Linear Bushings are applied with Anti-rust Oil harmless to the bearing lubrication greases. After de-greasing the Antirust Oil, application of grease is recommended.L, G, and H Grease filled types are also available. The MX Lubrication Units are filled with lithium soap-based grease.
• MaintenanceBefore usage, apply grease to the ball rows within the Linear bushings, then periodically apply grease during the use. The grease has an effect of reducing friction by forming a layer between the balls and shaft rolling surfaces, preventing seizures. Grease loss and deterioration will cause shorter life of linear guides.
Recommended Grease: Lithium soap based grease (Alvania Grease S2 by Showa Shell Sekiyu).Recommended Greasing Interval: Normally 6 months* Every 3 month when travel distance is extensive, or every 1000km.
Lubrication and Maintenance
Salt water spray testing method conforms to JIS H8502.Testing Sample: Flanged Linear Bushing Single Type
Antirust Performance
SUJ2 Equivalent SUS440C Electroless Nickel Plating Low Temperature Black Chrome Plating
Before Test
72hr
168hr
(Ref. Data) Antirust Performance Comparison Test
• Low temperature black chrome plating on linear bushings is 5µm of fluoropolymer layer chemically deposited
as a black film, and it has a long-lasting rust prevention effect.• Additionally, the coating is resistant to cracking from extreme and repeated bending.• Low temperature black chrome plated shafts are suitable for places where rusting or reflection of light is
undesirable.
(Note) No surface treatment is applied to I.D. surface of low temperature black chrome plated linear bushings.
* Photograph shows the condition of Linear Bushing after Sliding Test
(Sliding Test Conditions)
50km sliding test was conducted with a 412N load on the linear bushing.
No performance degradation after the test.
QLinear Bushing Models Applicable to Low Temperature Black Chrome Plating
Straight Applicable I.D. Page
Single LMUR Ø3~Ø30P.315,316
Double LMUWR Ø5~Ø30
Flanged Type Applicable I.D. Page
Single LHF#RØ6~Ø30
P.305
Double LHF#WR P.306
* For details, refer to each page.
Low Temperature Black Chrome Plating
Linear Bushings: LMUR12Linear Shafts : RSFJ12
Linear BushingsDouble
-3031
0303-0304_F04-04_cENG
-3041
0303-0304_F04-04_cENG cENG 2nd
Fitting Design
Bushing
Bushing
Shaft
Housing
[Fitting of Shaft O.D. and Bushing I.D.] [Fitting of Bushing O.D. and Housing I.D.]
Reference: Tolerance range of I.D. of linear bushings and O.D. of shafts made by MISUMI
Dimension (mm) Linear Bushings Single Type (LMU) I.D. Tolerance Shaft (SFJ) O.D. Tolerance (g6)0
Ø3~5 Ø6~16 Ø20~30Ø35~50
-0.001-0.002
Ø3
-0.003-0.004
Ø4~6
-0.005
Ø8~10
-0.006
Ø12~18
-0.007
Ø20~30
-0.008-0.009
Ø35~50
-0.010-0.011-0.012-0.013-0.014-0.015-0.016-0.017-0.018-0.019-0.020-0.021-0.022-0.023-0.024-0.025
QProducts with Filled Grease Options
Applicable Products Shaft Dia. dr
Unit Price (Price for Grease Filling Service)Shaft Dia. dr ≤10 12≤ Shaft Dia. dr ≤30 35≤ Shaft Dia. dr
P.305~P.335 Linear Bushing RelatedEProducts below are excluded.• Linear bushings without seals• Linear Ball Bushings P.336
3~50
QGrease PerformanceItem Conditions Unit Measurement Method L Type G Type H TypeThickener - - - Aromatic Diurea Lithium Type Aluminum Complex SoapBase Oil - - - Ether Synthetic Oil Mineral Oil + Synthetic Hydrocarbon Oil USP White Oil
Base Oil Kinetic Viscosity
40°C mm2/s JIS K2220 5.19 103 30 105100°C 12.8 - 11.5
Miscible Consistency - - JIS K2220 5.3 280 207 310Dropping Point - °C JIS K2220 5.4 <260 200 238
Evaporation Amount 99°Cx22hr wt% - 0.15% 1.40% 0.27%(ASTMD-972)Oil Separation 100°Cx24hr wt% JIS K2220 514 1.2% 0.8% 2.1%(ASTMD-1742)
Operating Temp. In Air °C - -40~200 -10~80 -12~170
<Test Equipment for G Type Grease Comparison>QComparison of Particle Generation
Small Clean Unit with a HEPA Filter
Linear Bushings Tested
Recorder
CounterParticle
<Testing Condition>Linear Bushing Used
Liner Motion SpeedStrokeEnvironmentTemperatureHumidityParticle Counter
LHFS16 (Regular Type)LHFS16G (G Type)20m/min100mmInside Clean Booth (Class100)22.5°C±2°C50wt%Made by Rion Co. Ltd.KC03A1
020406080
100120140
0 10 20 30 40 50 60 70 80
Partic
le Ge
nerat
ion (P
articl
e/cf)
Time (hr)
Comparison of Particle Generation Amount (0.3µm or more)Regular TypeG Type
* The data above are for reference only, and not guaranteed by the manufacturer.
E�To place an order, add L, G, or H after Part Number of Regular Type.
Part Number
LMU12LLMU12GLMU12H
(L Type Greased)(G Type Greased)(H Type Greased)
Grease Service
Type Product Name Main Features L Type ET−100K (Made by Kyodo Yushi) Superior heat resistance and oxidation stability. Also high adhesion and cohesion with limited splash or leakage. G Type LG2 (Made by NSK Ltd.) Suitable for clean environment due to low particle generation grease. Also good anti-rusting characteristics. H Type FGL(Lubriplate®) Suitable for food, beverage and pharmaceutical industries. (NSF H-1 Reg. NO.043534)
Service to apply greases shown below at the time of shipping.
Gre
ase
Per
form
ance
