Ball BushingsHepcoMotion®

www.HepcoMotion.com

Contents

HepcoMotion Super Ball Bushings 1

HepcoMotion Standard Ball Bushings 1 SBE Closed Super Ball Bushing 2 SBEO Open Super Ball Bushing 3 CS Closed Pillow Block Super Ball Bushing 4 CSO Open Pillow Block Super Ball Busing 5 LME Closed Standard Ball Bushing 6 LME-OP Open Standard Ball Bushing 8 LME-L Extended Length Standard Ball Bushing 10 LMF-L Round Flange Long Version 12 LMK-L Square Flange Long Version 14

HepcoMotion Precision Linear Shaft 17

Metric Shaft Support Rails 18

Aluminium Shaft Supports 19

Housing and Shaft tolerance 20

Assembly 21

Load / Life 22

Lubrication 23

Part Number 24

Super Ball Bushing - European Standard

CSO BlockHigh load with self-aligning feature.

High load with self-aligning feature.

High load with self-aligning feature.

High load with self-aligning feature.

SBE Bearing

Super European closed Super European pillow block open

SBEO Bearing

Super European open

CS Block

Super European pillow block closed

Standard Ball Bushing

Flanged Housing

Standard LMESteel construction for rigid mounting.

Open typeLME□OP

Steel construction compatible with Hepco support rail.

For higher ridgity. For higher ridgity

LMF□L Round Double Flange

Super Japanese

LMK□L Square Double Flange

Super Japanese

Extended Lenght LME□L

Standard European Standard European Standard European

Steel construction for additional ridgity.

1

HepcoMotion Super Ball Bushings

Super ball bushings from HepcoMotion offer you 3 x load capacity which equates to 27 x the life of standard ball bushings with the same overall dimensions.

These high quality units consist of hardened steel segmented load bearing plates with precision ground ball tracks combined with a 0.5 deg self alignment feature.

This ensures a uniform load distribution over the entire row of balls preventing point loading that shortens life.

Self alignment featureThe outer surface of the steel load bearing plates is designed with a curved surface that in turn allows the bushing to absorb misalignment caused by inaccuracies between the shaft and ball bushing.

In addition to ensuring equal load distribution, the feature provides smooth entry and exit of the balls in and out of the loading area.

The self alignment feature requires two super ball bushings to be mounted to one shaft in a conventional two parallel shaft arrangement.

• Super ball bushings are interchangeable with the ISO standard meaning all main dimensions, outside diameter, bore and length are the same.

• Super ball bushings will reduce preparation and assembly time as any shaft defl ection and inaccuracies in the machining process will be accommodated by the self alignment feature.

• Easy entry and exit feature that comes with the self aligning design ensures smooth movement.

• Ball retainers are made from a high grade polyamide maintaining low friction over the entire travel length.

• Friction coeffi cient of 0.001 with oil lubrication.• Can operate at temperatures up to 100 deg c and speeds up to

3m/s acc 150m/sec 2

Fig 2. 0.5° of Self-Alignment

WON Super Ball Bushing

Life(27X)

Load capacity(3X)

Conventional Ball Bushing

Table 1. Comparing Life and Load Capacity

Fig 3. Radial Clearance Adjustment

HepcoMotion Standard Ball Bushings

Standard ball bushings from HepcoMotion offer dimensional interchangeability with all major manufacturers and incorporate a rigid steel outer sleeve with 4 / 6 ball circuits depending on size. Ball retainers are made from high grade polyamide for superior performance and low friction.

Loadcarrying row

Non-loadCarring row

Hardened andground outer sleeve

Retainer Ball

LM Shaft

End sealRatainingring

Fig 1. Linear Ball Bushing

2

Closed type

European Super Ball Bushing

SBE type

Part No.

D1DwithoutSeal

withoutOne Seal

withoutTwo Seal B1 B2B d

Dimensions Shaft No.Ballrows

Basic Load Ratingsdyn.

C(N)

stat.Co(N)

Unit : mm

26

60

120

184

342

586

weight(g)

3

SBEO type

Open type

European Super Ball Bushing

Part No.

D1DwithoutSeal

withoutOne Seal

withoutTwo Seal B1 B2B E d

Dimensions ShaftAngle No.Ballrows

Basic Load Ratingsdyn.

C(N)

stat.Co(N)

Unit : mm

20

50

100

154

286

486

weight(g)

4

Closed type(with 1pc of SBE)

European Super Ball Bushing Pillow Block

CS type

Part No.h E W L F G T B C K b S1 S2 d

Dimensions Mounting Dimensions Shaft No.Ballrows

Basic Load Ratings

dyn.C

(N)

stat.Co(N)

Unit : mm

204

340

636

970

1740

2922

weight(g)

5

CSO type

Open type(with 1pc of SBEO)

European Super Ball Bushing Pillow Block

CSO 16UU

CSO 16UU-B

CSO 20UU

CSO 20UU-B

CSO 25UU

CSO 25UU-B

CSO 30UU

CSO 30UU-B

CSO 40UU

CSO 40UU-B

CSO 50UU

CSO 50UU-B

22

25

30

35

45

50

26.5

30

39

43.5

54

66

53

60

78

87

108

132

43

54

67

79

91

113

35

42

51

60

77

88

8

10

13

15

20

25

9

9

11.5

14

19.5

22.5

68

55

57

57

56

54

θ

40

45

60

68

86

108

26

32

40

45

58

50

13

18

22

22

26

34

M6

M8

M10

M10

M12

M16

-M5-

M6-

M8-

M8-

M10-

M12

16

20

25

30

40

50

4

5

5

5

5

5

1332

2371

4557

5644

9398

13857

715

1274

2234

3018

4410

6860

Part No.h E W L F T B C Db S1h1 S2

Dimensions Mounting Dimensions Shaft No.Ballrows

Basic Load Ratings

dyn.C

(N)

stat.Co(N)

Unit : mm

160

280

552

846

1516

2546

weight(g)

6

LME Series - European

LM SeriesStandard type Open type

Working BoreDiameter

Basic Load RatingsDynC

(N)

Stat.Co(N)

dr Tol.Part No. Part No.No. ofBall circuit

No. ofBall circuit

No. ofBall circuit

Unit : mm

7

Part No.

Dimensions (mm)Unit : mm

DTol. Tol. Tol.

L BW

Wgt.(gf)

AllowableDiametralClearanceD1 h1

8

LM Series - Japanese

LM SeriesStandard type Open type

Working BoreDiameter

Basic Load RatingsDynC

(N)

Stat.Co(N)

dr Tol.Part No. Part No.No. ofBall circuit

No. ofBall circuit

No. ofBall circuit

Unit : mm

9

Part No.

Dimensions (mm)Unit : mm

DTol. Tol. Tol.

L BW

Wgt.(gf)

AllowableDiametralClearanceD1 h1

10

Series

LME□L Series

Dimensions (mm)Working BoreDiameter

Basic Load RatingsSeriesD L B Wgt.* Dyn.

CStat.CoTol. Tol. Tol. Tol.Part No.

No. ofBall

circuit

Unit : mm

11

LMF/K□L Series - Japanese

Part No.

Circulartype

Squaretype

No. ofBall

circuit

AllowableDiametralClearance

Basic Load Ratings

Dyn.C (N)

Stat.Co (N)

Working BoreDiameterWgt.*

(gf) dr Tol.

Unit : mm

12

Part No.

Dimensions (mm)

d1 x d2 x hD

Tol. Tol. Tol.L B

H K W A F *Sqiareness

PCD

Unit : mm

13

Shaft Options

Correct Shaft selection is vital if maximum performance is to be achieved from your linear system. Hepco Precision Shaft has been developed to provide excellentperformance when used with either recirculating ball bushings or plane bearing technology.

An extensive range of shaft materials are available and Hepco offers a full machining facility with fast turnaround.

Other types of shaft available include: • Specials up to 150mm Ø • Tubing Please enquire.

Introducing the HepcoMotion® Precision Linear Shaft

Shaft Type Metric REF Hardness RC TOL

Diameter Options5 6 8 10 12 16 20 25 30 40 50 60 80

Metric Carbon Steel CK53 Hardened and Ground NIM-- 60 h6

Metric Stainless Steel (400 series) Hardened and

Ground

NIM--SS 50 h6

Metric Soft Stainless Steel (300 Series) Ground

NIM--SS316 X h6

Metric Hardcoat Anodised Aluminium NIMA-- X h6 – – – – – – –

Shaft Type Imperial REF Hardness RC TOL

Diameter Options3/16 1/4 3/8 1/2 5/8 3/4 1 1 1/4 1 1/2 2

Metric Carbon Steel CK53 Hardened and Ground NIL 60 Class L

Metric Stainless Steel (400 series) Hardened and

Ground

NIL--SS 50 Class L

Metric Soft Stainless Steel (300 Series) Ground

NIL--SS316 X Class L

Metric Hardcoat Anodised Aluminium NILA-- X Class L

14

Metric Shaft Support Rails

Shaft support rails will prevent shaft defl ection under load and provide a high level of rigidity in order to achieve optimum performance from your open type Pacifi c Bearing, or any other open recirculating linear bearing.

Support Rails are of low overall height making them particularly suitable for use with Hepco Pacifi c Pillow Blocks. The standard support rail is manufactured from aluminium alloy and comes in 600mm lengths only, these are then cut/butted together to fi t to the overall length of the one piece shaft.

Shaft – All types of shaft can be supplied drilled for customer assembly or fi tted to the support rails for ease of supply.

For standard 600mm aluminium support rails, X = half of T1 or T2. For support rails which require cutting/butting, customer to confi rm Dim X

AE

V

H

t

dM

N

O1 U1

O2

U2

X XT1/T2

600 +0.5-1.5

145˚

X = 1/2 hole pitch T1 or T2

Shaft & Support Rail Fully Assembled Simply prefix the shaft reference with AU Example – AU NIM 20 X L2000 T2

Drilled Shaft Only Simply state the shaft reference and add T1 or T2 depending upon shaft hole centres required Example – NIM 20 X L2000 T2

Support Rails Only Aluminium Support Rails supplied in 600mm lengths only. Simply state whether T1 or T2 drilling is required Example – Support Rail for 20mm Shaft T2 Hole Centre – SR20 – T2

For Shaft Diameter d H1

±0.01 A V M O1 U1 N E t O2 SQ.

U2DIN7980 T1 T2

12 12 22 40 5 5.8 M 4X20 4 8 29 4.5 M 4X12 4 75 12016 16 26 45 5 7 M 5X20 5 9 33 7.6 M 5X16 5 100 15020 20 32 52 6 8.3 M 6X25 6 11 37 8.6 M 6X16 6 100 15025 25 36 57 6 10.8 M 8X30 8 15 42 9 M 6X16 6 120 20030 30 42 69 7 11 M10X35 10 17 51 10 M 8X25 8 150 20040 40 50 73 8 15 M10X40 10 19 55 9.5 M 8X25 8 200 30050 50 60 84 9 19 M12X45 12 21 63 11.2 M10X30 10 200 300

15

Aluminium Shaft Supports

d

L

L2

D

Spigot One end Both ends

Option A

d

L2

D

Threaded Spigot One end Both ends

Option B

Undercut to DIN 76

d

L2

D

Drilled and Tapped One end Both ends

Option C

A/F

L2

D

Single Flat Double FlatOne end Both ends

Option D

Please send drawing Please send drawing

HepcoMotion can undertake shaft machining to standard ed as shown below or specials to customers’ drawings.

We canmachine 1 off or 100 off with fast delivery. Special steels and non standard toleranced material is also available. Please speak to our sales dept 01884 257000 for further information.

Part No.Nominal

Shaft Diameter

Major Dimensions Mounting Bolt Designation

Weightgh E W L F G P B S

ASS 10 10 17 18.5 37 10 30 5 18 28 4.5 M4 24ASS 12 12 20 21 42 15 35 5.5 20 32 5.5 M5 30ASS 16 16 25 25 50 15 42 6 26 40 5.5 M5 40ASS 20 20 30 30 60 20 50 8 32 45 5.5 M5 70ASS 25 25 35 37 75 25 58 9 38 60 6.6 M6 130ASS 30 30 40 42 84 30 68 10 45 68 9 M8 180ASS 40 40 50 54 108 30 86 12 56 86 11 M10 420ASS 50 50 60 65 130 40 100 14 80 108 11 M10 750

16

Housing and Shaft tolerance

Assembly

Housing is essential to use Hepco’s super ball bushing and service life and accuracy is affected by the inner tolerance of housing.

You can refer to table 2~7 about housing and shaft tolerance to use super ball bushing.

Hepco’s Super Ball Bushing is very precise so it must be handled with meticulous care. Use of a jig(see illustration) is recommended for insertion into a housing and Care should be taken not to exert pressure on the ball reatainer or seals.

The edge of the housing bore must be charmfered as well as the ends of the shaft are also chamfered. And the WON Super Bushing is not tilted when it is pushed onto the shaft.

Reducing load capacity in short-stroke applicationIn short stroke application the service life of the Hepco shafts is shorter than that of the Super Ball Bushing. For this reason the life can be shorten up to about 70% by the stroke.

Table 3. European type Unit : mmPart No.

Inner Diameter(D)

Tolerance(H7)+0.021

0+0.025

0+0.030

0

SB 1626

SBE 2032

SBE 2540

SBE 3047

SBE 4062

SBE 5075

Table 6. European type Unit : mmPart No.

Shaft Diameter

Tolerance(h6)0

-0.0110

-0.0130

-0.016

SB 1616

SBE 2020

SBE 2525

SBE 3030

SBE 4040

SBE 5050

Fig 9.

17

Assembly

Tolerance of Housing BoreThe recommended housing and shaft tolerances are shown in the following table

Clearance of Outer Sleeve and ShaftNormal fi t is standard for using of Linear Bushing with LM shaft, and for without clearance, Tight fi t is also available.

Note 1) When clearance after installation is required to minus, Allowable value of radial clearance is not

allowed to exceed the value in the table.

Note 2) Axial clearance of SH, SHW, SHO type are same as High grade.

Table 4. Tolerance for House Bore

Part No. GradeHigh(H)

Normal Fit Tight FitType Case

Table 5. Tolerance for Shaft Diameter

Part No.Type LM Shaft

Grade Normal Fit Tight FitHigh(H)

18

Load / Life

Life Calculation

Basic Dynamic Rating (C)The basic Dynamic Load Rating (C) is the maximum continuous load that can be applied to a bearing with a 90% probability that a working life of 50 km will be achieved.

There are three basic factors to the load calculation that may need to be applied depending on the application conditions.

Shaft hardness factor (fH)The hardness of the shaft should be 60 RC +/- 2, refer fi g 45 for shaft hardness factors.

Temperature factor (fr)Ball bushings in this range are designed to work at a maximum temperature of 100 deg C, for temperatures higher than this please apply the temperature factor as indicated in fi g 6.

Load direction factor (fb)Load capacities are affected by the position of the applied load in relation to the ball bushing ball track circuit as fi g 7. Fig 8 shows the factors to be applied for the various load positions around the circumference of the bushing.

Basic Static Load Rating (C0)The Basic Static Load Rating (C0) is the static load that will permanently cause deformation of the bushing ball track equivalent to 0.0001 of the ball diameter. It is good practice to limit the maximum static force to 80% maximum of the static load rating.

Fig 5. Hardness factor (fH)

Hard

ness

facto

r (fH)

Raceway Hardness HRC

Tem

pera

ture

facto

r (fT)

Linear motion system temperature ° C

Fig 6. Temperature factor (fT)

LCPfHfT

: Running distance life: Basic dynamic load rating: Applied load: Hardness factor(fi g 5.): Temperature factor(fi g 6.)

(km)(N)(N)

19

Lubrication

For best performance and to achieve a long and trouble free life ball bushings require lubrication either oil or grease.

Grease LubricationFor grease lubrication the anticorrosive protection oil should be removed prior to assembly ensuring that the bearing is dry before applying grease.

Grease should be applied directly to the ball circuits prior to fi tting, generally a lithium soap grease ISO viscosity grade 2 is recommended for general use.

Oil Lubrication.For oil lubrication it is not necessary to remove the anticorrosive protection from the bushing. The viscosity grade will be dependent on the operating temperature, please see the chart below

For most effective lubrication oil should be applied between two assembled bushings as shown in Fig 4 where only seals are fi tted to the outside of each bearing.

Periodic checking of the installation is recommended whether oil or grease is concerned in order to check that the bushing is not running dry.

Fig 4.

Operating Temp. Viscosity-30° C ~ 50° C50° C ~ 80° C

VG 15 ~ 46 VG 46 ~ 100

20

Part Number

Hepco’s Linear Ball Bushing

Model- : Standard SeriesE : European Series

Type- : Closed typeOP : Open type

Type- : StandardL : Long(Double-wide)

Outer Diameter of Shaft

Seal- : No SealUU : Seals on both sides

Flange Option- : No FlangeF : Round TypeK : Square Type

Standard type

Possible mounting methods are illustrated in Fig 6. and Fig 7. Mount a Linear Bushing with retaining rings and cover plates.

Fig 6. Mounting with retaining rings Fig 7. Mounting with cover plates

21

HepcoMotion® Product Range

GV3Linear Guidance and Transmission System

SBDSealed Belt

Drive

MHDHeavy Duty Track Roller

Guidance System

HDS2Heavy DutySlide System

MCSAluminium Frame

and MachineConstruction System

DTSDriven Track System

HDRTHeavy Duty Ring Slides

and Track System

DLSLinear Transmission and

Positioning System

Vee Slide Linear Guidance Systems

SL2Stainless Steel Based

Slide System

HTSTelescopic Ball Bearing

Slides

PDU2Profi le Driven Unit

HPSPowerslide-2 Guided

Rodless Cylinder

PSD120Profi le Screw Driven Unit

PRT2Precision Ring and

Track System

HDLSHeavy Duty Driven

Linear System

BSPBallscrew Premier

Product Range HepcoMotion® – Exclusive European partners and distributors for Bishop-Wisecarver since 1984.

®

Single Edge Slide System

LoPro®

Aluminium Based Slide System

UtiliTrak®

Lightweight U Channel Guideway

For further information on HepcoMotion® products – please request our leafl et ‘FPL’

Lower Moor Business Park, Tiverton Way, Tiverton, Devon, England EX16 6TG Tel: +44 (0)1884 257000 Fax: +44 (0)1884 243500

E-mail: sales@hepcomotion.com

CATALOGUE No.HLG 01 UK © 2014 Hepco Slide Systems Ltd.Reproduction in whole or part without prior authorisation from Hepco is prohibited. Although every effort has been made to ensure the accuracy of the information in this catalogue, Hepco cannot accept liability for any omissions or errors. Hepco reserves the right to make alterations to the product resulting from technical developments.Many Hepco products are protected by: Patents, Copyright, Design Right or Registered Design. Infringement is strictly prohibited and may be challenged in law. The Customer’s attention is drawn to the following clause in Hepco’s conditions of sale:‘It shall be the Customer’s sole responsibility to ensure that goods supplied by Hepco will be suitable or fi t for any particular application or purpose of the Customer, whether or not such application or purpose is known to Hepco. The Customer will be solely responsible for any errors in, or omissions from, any specifi cations or information the Customer provides. Hepco will not be obliged to verify whether any such specifi cations or information are correct or suffi cient for any application or purpose.’Hepco’s full conditions of sale are available on request and will apply to all quotations and contracts for the supply of items detailed in this catalogue.H M h d f H Sl d S L d