CPC ARC Manuel utilisateur

2023.05.22 Printed in Taiwan LG-01-W51-EN

ARC/HRC/ERC Standard 4-Row Ball Bearing Linear Guide

WRC Wide 4-Row Ball Bearing Linear Guide

ARD/HRD/ERD Standard 4-Row Ball Bearing Linear Guide

Equipped with Cover Strip

ARR/HRR/LRR Standard 4-Row Roller-type Linear Guide

PAT.

2280 E. Locust Court.

Ontario, CA 91761, USA

Tel:+1-909-773-1200

Fax:+1-909-773-1202

No.3, Dali 1st Rd., Xinshi Dist., Southern Taiwan

Science Park, Tainan City .741-45, Taiwan (R.O.C)

Contents

ARC/HRC/ERC Product Overview......................................................................................................P01~P02

Product Design (Standard Equipment).............................................................................................P03~P06

Product Design (Optional Accessories).............................................................................................P07~P12

Technical Information..........................................................................................................................P13~P25

Installation Instructions.........................................................................................................................P26~P29

Lubrication.............................................................................................................................................P30

Accuracy...............................................................................................................................................P31

Ordering Information............................................................................................................................P32

Dimensions Specification.....................................................................................................................P33~P40

Product Design....................................................................................................................................P55~P60

Technical Information..........................................................................................................................P61~P62

Accuracy...............................................................................................................................................P63~P64

Ordering Information............................................................................................................................P65~P66

Dimensions Specification.....................................................................................................................P67~P76

Product Features.................................................................................................................................P45

Installation Instructions.........................................................................................................................P46

Ordering Information............................................................................................................................P46

Dimensions Specification.....................................................................................................................P47~P54

Grease Nipple Option.......................................................................................................................P79~P80

Lubrication Kit and Grease Gun.......................................................................................................P81~P82

Ordering Information............................................................................................................................P42

Dimensions Specification.....................................................................................................................P43~P44

ARC/HRC/ERC Standard 4-Row Ball Bearing Linear Guide

ARD Standard 4-Row Ball Bearing Linear Guide Equipped with Cover Strip

WRC Wide 4-Row Ball Bearing Linear Guide

Lubrication Storages Pad Test Report..............................................................................................P83

Linear Guide Service Life Calculation and Model Selection.........................................................P84

LINEAR MOTION TECHNOLOGY

Selection method

ARR/HRR/LRR 4-Row Roller-type Linear Guide

Bellows

Grease Nipple Option

Lubrication Storages Pad Testing Report

Bellows..................................................................................................................................................P77~P78

Calculation by Loading, Lifetime, & Rigidity Analysis Software

of Linear Guide System (LLRAS)

9. Service life and rigidity meet requirement

10. Selection according to the existing

operating conditions

YES

1. Linear guide application requirements (1) Dimension

(2) Service life

(3) Rigidity requirements

(4) Accuracy requirements

(5) Operating environment

(6) Lubrication options

2. Linear guide use condition settings Factors to determine the load of linear guide

(1) Installation position (horizontal, vertical, inclined, hanging, wall mounting)

(2) Load (gravity, size, direction, position), force (size, direction, position) and drive (position)

(3) Stroke

(4) Velocity and acceleration

(5) Frequency

(6) Accuracy level

3. Model selection

Select the specification of linear guide based on operating environment. Determine the desired dimensions

and reference edge corner design according to the bearing capacity of mounting screws (page 23,24)

4. Calculation of equivalent load

Note: Please fill the “Linear guide service life calculation and model selection

inquiry form” (Page 84)

Use the cpc program to calculate the equivalent load of each block based on

selected specification and operating environment.

5.1 Calculate the static

safety factor

Calculate the static safety factor

based on the maximum equivalent load,

basic static load rating, and the bearing

capacity determined by mounting

method of rails and blocks.

5.2 Select pre-load level

- Use pre-load level

- Select the mounting method

- Decide the fix method

5.3 Select the accuracy

level of rail.

- Determine the accuracy level

of installation site.

- Reference table of accuracy

level of different category machine.

6. Determine whether the static safety factor and the

bearing capacity of mounting screws is qualified or not

7. Calculate the average equivalent load

Convert the change of block load in stroke into the average equivalent load

8. Service life prediction and Rigidity

Find out the operating distance, service life and rigidity by life calculating formula.

Selection completed

- Lubrication Design

- Dustproof Design

- Surface Treatment

- Lubrication method / cycle

LINEAR MOTION TECHNOLOGY

15 12.4

16.4

19.5

24.0

30.4

38.2

43.1

9.35

12.5

14.5

19.5

28.5

LOHC

F = Mr/Lo

)

Unit:mm

O-Type Arrangement X-Type Arrangement

Mode Code

01 02

Product Overview

ARC/HRC/ERC Product Characteristics

Inner Lubrication storage Pad (Upper)

No need to increase the length of the runner block

Full lubrication contact with balls, particularly suitable

for short stroke movement.

End Cap

All-around lubrication

holes system

Inner Lubrication storage

Pad (Bottom)

High abrasion resistant

material end seal

Standard contactless, low friction,

high dust proof seal

Ball chain

Patented design to enable reverse operations.

Muted and prolonged service life

Stainless steel

reinforcement plate

Total scraping of external objects above 0.3mm

Increased X-axis axial force capacity

High Load and torque capabilities

Excellent dynamic performance: Reach Vmax 10 m/s Reach Ĵmax 450 m/s2

Can provide counterbored holes from the top and tapped mounting holes from

the bottom rail

Can provide specialized steel surface treatment

Our standard cpc ARC/HRC/ERC Linear Guide Series uses the O-type arrangement for its four-row ball

circulation design. The 45-degree contact angle between the rails and balls allows our product to realize

a four-directional equivalent load effect. cpc has placed special emphasis on strengthening the arm

length (Lo) of our product so that when sustaining external force (F), this can have an even higher Mr value,

which increases its rigidity and torsion-resistant capabilities. The larger and more numberous balls in our

products allows it to have a 10-30% greater load capacity than similarily sized competitor products.

These and other characteristics are the source of our product's high load capacity, moment, and stiffness

features.

LINEAR MOTION TECHNOLOGY

Average Friction of Block

UnitȈN

ᢳ/ARC25MN SZ V1N

Block friction!>!1.6+2.5+3 = 7.1N

ᢴ/HRC30FL BZ V0P

Block friction>!1.4+3+2 = 6.4N Block friction

Friction caused from ball bearing

Bottom Seals + Inner Seals

+) End Seals (2 sides)

Applied example

Low Friction Seals (B)

Our low-friction seals have slight contact with the rail

and are suitable for most environments, with both low

friction and a scraper function.

Standard Seals (S)

Our standard seals are in direct contact with the rail

surface, giving them increased dustproof and lubrication

retention capabilities. cpc recommends this class of seal

for blocks that operate in environments high in foreign

particles, such as sawdust, for long periods of time. S-type

seals will have comparatively higher friction than B-Type

seals.

Dust

Lubrication oil

B type S type

End Seals

The end deals work in conjunction with the bottom and

inner seals to block foreign particles out and prevent

lubrication leakage. Our engineering plastic has a strong

friction resistance and is less prone to cracking than typical

NBR plastics.

Force of Friction

Time

Seal type friction comparison

Friction levels will be the highest on new linear rails. But,

after short periods of operation, such friction will be

reduced to a constant level.

Product Design (Standard)

Stainless Steel Reinforcement Plate

Dustproof design

Inner Seals

The newly designed inner seals both protect the rails

from foreign particles and keep the lubrication inside

the runner block while maintaining a low friction profile.

Bottom Seals

The bottom seals work in conjunction with the inner seals

to keep foreign particles out and lubrication from leaking

out. Our comprehensive sealing design significantly

reduces re-lubrication needs and prolongs the service life

of the runner block.

Inner seals

Bottom Seals

03 04

The reinforcement plate also functions as a scraper for

larger particulates like iron fillings, and has no more than

0.3mm clearance between the plate and the rail. ARC/HRC/ERC

0.30 4

0.40

0.60

0.55

0.65

0.85

1.6 4.1 5.5

0.65

0.75

0.95

1.10

1.25

2.10

0.85

1.40

1.60

2.00

2.50

2.80

1.10

1.60

1.95

3.10

3.25

7.95

4.00

1.5

2.0

2.5

3.0

4.0

2.0

2.5

3.0

5.0

8.0

11.0

13.0

0.5

1.0

1.5

2.0

3.0

4.0

15MN/FN

20MN/FN

25MN/FN

30MN/FN

35MN/FN

45MN/FN

55MN/FN

V0 V1 V2

ARC/HRC/ERC

0.30

0.40

0.50

0.60

0.70

0.90

1.00

0.80

1.10

1.20

1.80

1.00

1.40

1.80

2.30

1.5

2.0

2.5

3.0

2.0

2.5

3.0

5.0

0.5

1.0

1.5

2.0

15MS/FS

20MS/FS

25MS/FS

30MS/FS

V0 V1 V2

ARC/HRC/ERC

0.40

0.50

0.70

0.80

0.90

1.00

1.9

0.70

0.80

1.20

1.40

1.60

2.30

4.3

0.90

1.60

1.80

2.20

2.70

3.50

6.6 8.6

1.40

1.80

2.00

2.80

3.50

4.55

1.5

2.0

2.5

3.0

4.0

2.0

2.5

3.0

5.0

8.0

11.0

13.0

0.5

1.0

1.5

2.0

3.0

4.0

15ML/FL

20ML/FL

25ML/FL

30ML/FL

35ML/FL

45ML/FL

V0 V1 V2

55ML/FL

Block Type

Friction caused from ball bearing

Preload Class

Block Type

Friction caused from ball bearing

Preload Class

Bottom Seals +

Inner Seals S-Type

Standard

B-Type

Low friction

End Seals ( 2 sides )

External NBR seal with

metal scraper

Bottom Seals +

Inner Seals S-Type

Standard

B-Type

Low friction

End Seals ( 2 sides )

External NBR seal with

metal scraper

Friction caused from ball bearing

Preload Class Bottom Seals +

Inner Seals S-Type

Standard

B-Type

Low friction

End Seals ( 2 sides )

External NBR seal with

metal scraper

< 0.3mm

The following table shows the resistance value of the running block mounted with different seal types under the condition

when the running block lubricated with ISO VG32 lubricant.

Note: The end seal is made of elastic plastic material, not NBR, with low friction resistance and constant dynamic and static friction.

<pic.1>

Side Lubrication Port

(both sides of block have

lubrication holes)

LINEAR MOTION TECHNOLOGY

Product Design (Standard)

This test uses a total of 4 groups of products (2 rails matched with 2

lubrication methods) which are put on a saw wood dust surface on

which a back and forth motion test is performed.

Rail

Runner Block

Testing conditions

Installation Steps

1. Stroke = 600mm

2. Total testing stroke = 30m

Test items

1. If saw wood dust enters the inner surface of the runner block

2. If saw wood dust enters the ball bearing runner area

Test results

Tapped from bottom (oil) Tapped from bottom (grease)

Checked Item

Installation status

ARU Rail SZ Type Runner

Block (oil lubrication)

If saw wood dust

enters inner

block surface

If saw wood dust

enters ball bearing

runner area

ARU Rail S Type Runner

Block (grease lubrication)

AR Rail SZ Type Runner

Block (oil lubrication)

AR Rail S Type Runner

Block (grease lubrication)

No No

Yes (belly area)

Test result

ɓ!The standard rail has hole plugs, leading to rail unevenness, allowing some saw wood dust to enter the runner block belly

area. The 2 sides of the runner block belly area are completely protected by stainless steel reinforcement plates and end seals,

meaning that the ball bearing runner area is fully shielded from saw wood dust.

ɓ!The rail tapped from the bottom has an even rail surface so that the ball bearing runner area is fully protected from saw wood dust.

Saw wood dust

Runner block

Rail

Saw wood dust Test

Test content

Multi-Directional Lubrication Nozzles (All-direction Lubrication Nozzles)

Our product features lubrication ports on the top, bottom, and sides, allowing the installation of optional grease nipples for

relubrication. The top port comes with an O-ring seal to allow easy relubrication from the top, and our diverse comprehensive

lubrication injection design allows for lubrication from all directions.

Vmax >10 m/s Ĵmax >450m/s2

Using 2 stainless steel reinforcement plates, the L form

design allows for screws to be fastened onto the top

and bottom of the runner block, reinforcing the rigidity

and cladding of its caps.

The clearance between the rail profile with the seal

design is below 0.3mm, reinforcing the steel plates

while enabling scraper functions.

Our ARC/HRC/ERC, ARD/HRD/ERD type features stainless steel

reinforcement plates and additional bottom latches, increasing

its axial force and tolerance capacity to achieve a faster

operating speed.

Stainless Steel

Reinforcement

Plate

End Cap

Stainless steel reinforcement plate (Patent)

Scraping function on both sides

Function of high speed operation

05 06

1. Standard rail plus hole plugs (AR)

2. Rail tapped from the bottom (ARU)

1. Installation of standard contact type seals (S), using grease.

2. Installation of lubrication storage Pad and standard contact type

seals (SZ), using grease.

Instruction for side lubricant-nozzle-installation port of

Linear Guide

The side lubrication injection port (see pic.1) on cpc’s linear guide blocks is sealed

on delivery to prevent leakage of lubricants.

Before installing lubricant injection nozzle or piping, the seal must be broken to allow

lubricant to enter the runner block.

1. Tool

7RSLHUFHWKHVHDOVHOHFWDQDZOZLWKDGLDPHWHUOHVVWKDQǗPPVHHSLF

<pic.2>

2. Side lubrication port

The seal is in a deeper small hole in the middle of

the side lubrication injection hole on the block

(see Detail View A from pic.3). The seal is only 0.2

~0.3mm thick.

<pic.3>

Side lubrication

hole’s “seal”

3. Piercing method

Use the awl to stab into the seal showed in above picture. Press the awl against the seal (see pic.4A) and move gently forward by

about 1mm. Please do not use power tools or pierce too deep, to prevent damage to guide block end cap, which may impact its

functionality and interfere with lubricant passage.

<pic.4A> <pic.4B>

Sealed lubricant passage Cleared lubricant passage

LINEAR MOTION TECHNOLOGY

Product Design (Option)

2332km

10000 2000 3000 4000 5000 6000

-20 12 44 76 108 140 172 204 236 268 300

1.5

4.5

7.5

10.5

13.5

Condition

Model：ARC25MN SZC V1H Dynamic load rating C100Ȉ33.6kN

Velocity：1m/sec Stroke：960mm

Load capacities：7.44kN(0.3C) PreloadȈ0.05C

Rating Life()3 x 100km=()3 x 100km=2332km

0.05C+0.3C

With traditional ball type linear guides, the spinning of balls in different directions leads to a two-times faster contact speed.

Such high friction greatly reduces the service life of such products. Additionally, the contact point between such balls also

produces high pressure and noise levels while increasing the danger of oil film cladding damage.

Low noise ball chain

The contact point between the balls

and ball chain leads to a low

surface pressure level.

Traditional Ball type linear guide

Because the contact point of ball

type linear guides is only between

balls, the surface pressure is

significantly higher.

The

cpc

ball chain provides a greater contact area between the balls and the ball chain. Because the film cladding will not

be damaged easily and due to the lower noise volume, balls can move at a higher speed while product service life can also

be extended significantly.

The block with the ball chain design has the same dimensions as that without ball chains, allowing for the use of the same rails.

Heavy load test

Nominal life:

Travel distance (continuing)：5877 km

Travel distance(km)

Smoothness test

Model code：ARC25MNSV1N

Velocity：10 mm/sec

Dynamic frictional (N)

Stroke(mm)

Ball chain

None ball

chain

After testing, grease remains

without anomalies.

Raceway surface

pitting

Low noise, superior quality high speed ball chain (Patent)

The table on the right shows the Ccage and

CISO values via different machine type testing.

(According to ISO-14728 regulations)

Mp/Mp0

My/My0

16.2

25.7

36.4

49.6

70.2

102.8

24.3

34.3

51.6

66.1

94.7

159.7

10.8

17.1

24.3

28.9

130

275

465

780

1575

2955

195

370

655

1040

1940

4185

185

310

455

200

340

530

1010

1775

215

350

640

900

1575

3280

145

205

200

340

530

1010

1775

215

350

640

900

1575

3280

145

205

Static rating load(kN) Static torque(Nm)

1. The space block in the ball chain can prevent the oil film from rupturing by ball to ball contact and decrease friction induced wear.

2. The retainer block of the ball chain can maintain a reliable oil film layer by continuously applying grease on the moving part.

3. The ball chain provides the important function of leading steel ball motion. For traditional blocks without ball chains, its steel balls are

pushed by the rotating back steel balls on the raceway, meaning that the contact angle between the balls and rail is less precise,

causing vibration and an increased stress level between balls. In comparison, the balls in our ball chain product are led by the ball

chain to ensure a correct fit and accurate contact angles. In this way, our product's ball chain design ensures that it can fit

correctly when entering the raceway and that the contact angle will be accurate. This means that our Ball chain design provides

for a smooth performance, lower vibration levels and less additional stress levels. Subsequently increase the dynamic load rating,

Ccage value.

9.4

15.4

22.4

31.0

43.7

67.6

12.5

18.9

28.5

38.0

50.6

86.2

7.1

11.6

16.8

21.3

11.8

22.3

33.6

46.5

65.6

101.4

15.6

27.4

42.8

57.0

75.9

129.3

8.9

16.8

25.2

32.0

CISO (kN) Ccage(kN)

Ordering code: C

Load capacity of ball chain

There are three advantages of ARC/HRC/ERC/, ARD/HRD/ERD ball chain series as compared with traditional, non-ball chain blocks:

Model Code

Dynamic rating load

Static rating load & Static torque

The C type block of ARC/HRC/ERC, ARD/HRD/ERD

will increase the pitch between balls on the

operating profile. Therefore, the static rating

load C0and the static rating torque Mr0, Mp0

and My0values will be decreased.

07 08

Ccage/C0Ccage/C0

Mr/Mr0

ARC/ARD-MN C

ARC/ARD-FN C

HRC/HRD-MN C

HRC/HRD-FN C

ERC/ERD-MN C

ARC/ARD-ML C

HRC/HRD-ML C

HRC/HRD-FL C

ERC/ERD-ML C

ARC/ARD-MS C

ARC/ARD-FS C

ERC/ERD-MS C

ARC/ARD-MN C

ARC/ARD-FN C

HRC/HRD-MN C

HRC/HRD-FN C

ERC/ERD-MN C

ARC/ARD-ML C

HRC/HRD-ML C

HRC/HRD-FL C

ERC/ERD-ML C

ARC/ARD-MS C

ARC/ARD-FS C

ERC/ERD-MS C

LINEAR MOTION TECHNOLOGY

Product Design (option)

Upper Lubrication Storage Pad

Bottom Lubrication Storage Pad

Lubrication Design

Inner oil storage and oil supply system design

Our Inner PU Lubrication Storage Pad design does not increase the length of the runner block and

can effectively lubricate all balls. Customers can inject lubrication oil directly through its lubrication

holes to ensure sufficient storage in the PU Lubrication storage pad. This not only enables long-term

lubrication effects but also a higher degree of ease at conforming to environment protection needs

and lowering maintenance costs. For short-stroke movements, this product allows for highly effective

lubrication.

(Ordering Code: Z)

External NBR Seal with Metal Scraper (Ordering Code: SN / HN)

(ARC/HRC/ERC, WRC, ARD/HRD/ERD, ARR/HRR/LRR)

Available for applications in harsh environments such as in grinding, glass processing, graphite processing and wood-working machinery,

providing a highly effective dust and iron scrap proofing solution.

Stainless Steel

Rubber

Exterior Dimension Bore Specification Screw Specification

Model Code

Unit: mm

Nozzle Screw

External NBR Seal

(NBR/HNBR)

Block

Screw

Metal Scraper

Sleeve

Nozzle Sleeve

Guide Rail

Grease nipple

Nozzle Screw

External NBR Seal

Block

Screw

Metal Scraper

Sleeve

Nozzle Sleeve

Guide Rail

Grease nipple

Installation Manual

1. When installing the external NBR seal, please ensure that the block is

on the rail.

2. Ensure that the rubber part is fitted in the sleeve. If the rubber part has

fallen off, set the sleeve to the corresponding bore.

3. Overlap the rubber part and metal scrapper with the corresponding

salient point and bore. The

cpc

logo must be facing outward.

4. Slide the external NBR seal into the rail from two sides and closely

connect with the block.

5. Fasten the screw into the correspondence bore and align the seal

with the center of the rail and properly fastened. Do not allow the

metal scraper to make contact with the guide rail.

(ARC/HRC/ERC, ARD/HRD/ERD)

09 10

SN: (made by BRB) For application in harsh environment.

HN: (made by HNBR) For application of resisting acidic / basic coolant.

ARC/HRC/ERC ball type external NBR seal dimensions and specifications

P4S5N5g3

27/20

54.2

62.2

75.8

68.5

99.6

115.5

131.2

157.5

188.5

98.2

100.2

123.4

138

156.6

193.5

222

MS/FS MN/FN ML/FL

36.5

42.5

9.4

12.5

14.5

19.5

28.5

Dimensions of the block mounted with

external NBR seals

x g

5.2

1.5

1.2

4.5

413

10.2

17.5

20.5

24.9

11.5

13.5

3.5

4.5

5.5

3.5

3.5 M3x0.35 M3x0.5 A/B-M3-L

A/B-M3-L

A/B-M6-L

B-PT1/8-L

M3x0.5

M3x0.35

M6x0.75

PT1/8

M4x0.5

M5x0.5

M3x0.35

M4x0.5

M5x0.5

2.3

2.1

2.5

2.8

3.2

3.1

5.8

5.6

6.5

3.5

6.5

20.3

34.2

39.3

49.6

22.5

23.2

26.5

t1t2P5

3S6ØD1ØD2N1N2

Dimensions of external NBR seals

ØD

36.5

42.5

External NBR Seal with

Metal Scraper

External NBR Seal with

Metal Scraper

Exterior Dimension La

Exterior Dimension

Nipple

Extending the relubrication interval and reducing the amount of lubricant has always been the main issues for the manufacturers of linear guides.

The rolling elements and the raceway surface must be completely lubricated. This is the condition that the linear guide must have to operate.

However, the application environment of linear guides is quite different. A critical environment due to acid, iron filings, wood chips, coolant, working

speed, stroke length, load, installation, etc. will affect lubrication. The cpc lubrication storage can keep oil/grease for a long time. cpc block with the

lubrication unit can be used in the same way as the block without an oil tank. The grease nipple can be mounted on the block and the lubricant

can be supplied directly and achieves the effect of permanent lubrication!

The size and position of the screw hole on

the stainless steel reinforcement plate

Functions of the screw hole on the stainless steel reinforcement plate:

1. using for external NBR seal

2. using for the bellow

3. using for MSS reader

ARC/HRC/ERC

WRC

LINEAR MOTION TECHNOLOGY

ARR/HRR/LEE roller type external NBR seal dimensions and specifications

x g

ØD

(Ordering Code: MPC)

Cap can be Smoothly Installed on Bolt-Hole

The Most Convenient Metal Cap Used in Industry

Bolt-hole cap of conventional linear guides, due to the difficulty of controlling hammering strength, often result in caps being

hammered too deep or surface unevenness which leads to the accumulation of dirt or scrap iron. Our

cpc

cap is especially

designed with a supporting block to prop up the cap and to fix the screw stably, thus preventing such unnecessary sinking.

The upper part of the cap is made of stainless steel which can prevent

sharp foreign objects from piling up on the bolt-hole and affect the end

seal function.

The lower part of the cap is made of plastic, and can be installed directly

on a standard rail without the need for additional bolt-hole slot milling.

The bolt-hole chamfer for standard rails is C0.2mm. For further dustproof

requests, the non-bolt-hole chamfer rail is optional upon ordering. (order code: TR)

Metal Cap Features Introduction

Dimensions and Specifications

Metal-Plastic-Cap

Rail

Supporting Block

Screw

Bolt-Hole with Chamfer

(standard)

Bolt-Hole without Chamfer

(optional: /TR)

Temporary

Support

Cap before

Hammering

(Plastic Support)

Plastic Support after

Hammering

(The form of the 8 supporting

blocks will become altered to

fit with the screw)

Block Height

A12

A8-R

M12

1.7 2.07.7

9.7

11.3

14.3

20.4

4.0

3.5

4.5

5.6

3.4

2.9

3.9

5.0

AR15 , WRC21/15, WRC27/20, ARR15

AR20 , ARR20

AR25 , ARR25

AR30 , AR35

M8 14.3 9.58.0 ARR35

AR45 , ARR45

Model Code Screw External Diameter

Cup Height

HRail

Metal-Plastic-Cap Patent Design for Standard Rail-Bolt-Hole

(With patent)

A14 M14 24.4 6.56.0 AR55 , ARR55

Stainless Steel

Rubber

N1Screw

Nozzle Screw

External NBR Seal

Block

Metal Scraper

Sleeve

Nozzle Sleeve

Guide Rail

Grease nipple

1.5

4.5

84.9

70 22.9

20 4.5

4.5

M6x0.75 A/B-M6-XL

A/B-M6-XLM6x0.75

M4x0.5

6.5

37.6

43.5

t1P5

t2WH

3S1S2ØD1ØD2N1N2

Exterior Dimension Bore Specification Screw Specification

Model

Code

Unit: mm

Nipple

External NBR Seal with

Metal Scraper

External NBR Seal with

Metal Scraper

Dimensions of the block mounted with

external NBR seals

The size and position of the screw hole on

the stainless steel reinforcement plate

Functions of the screw hole on the stainless steel reinforcement plate:

1. using for external NBR seal

2. using for the bellow

3. using for MSS reader

Dimensions of external NBR seals

142

176

167.5

211

197.5

246

MN/FN ML/FL MXL/FXL

Unit: mm

Model

Code

Exterior Dimension La

P4S5N5g3

22.5

M4x0.5

4.7

26 9.6 M3x0.35 1.4

29 12.5 M3x0.35 1.4

36.5 14 M3x0.35 1.7

3.3

3.576 27 M4x0.5

Exterior Dimension

Model

Code

LINEAR MOTION TECHNOLOGY

Basic static load capacity C0

The static load along the direction of the force; under this static load, the maximum calculated stress at the

center point of the contact surface between the ball and the track:

The value is 4200 MPa when radius of curvature ratio = 0.52

The value is 4600MPa when the radius of curvature = 0.6

Roller and rail contact surface produces the maximum calculated stress:

The value is 4000MPa

cpc's design of the roller guide series products has optimized the contact surface

between the roller and the raceway of the rail. The line contact stress is evenly

distributed. There is no edge stress effect, so they can withstand greater stress, as

shown in the right picture.

Note: At this point of maximum stress contact will yield a permanent deformation, which corresponds to 0.0001

diameter of the rolling element. (Above according to ISO 14728-2)

Static load safety factor calculation

(1) S0= C0/ P0

(2) S0= M0/ M

(3) P0= Fmax

(4) M0= Mmax

Equivalent static load P0and basic

static torque M0

Static load safety factor S0

The application of the static load capacity of the linear guide

series must be considered:

- Static load of linear guide

- Allowable load of screw fixation

- Permissible load of connected bodies

- The required static load safety factor for the application

The equivalent static load and static torque are the maximum

load and torque values, refer to equations (3) and (4).

In order to be able to withstand the permanent

deformation of the linear bearing and ensure that it

will not affect the accuracy and smooth operation of

the linear slide system. The static load safety factor S0

is calculated as equations (1) and (2).

S0 Static load safety factor

C0 Basic static load N in direction of load

P0 Equivalent static load N in direction of load

M0 Basic static torque Nm in direction of load

M Equivalent static torque Nm in direction of load

Operating situation S0

General operation

Shock or impact

High precision and smooth operation

1~2

2~3

≧ 3

13 14

Technical Information

Load capacity and service life

Definition: C100 is a radial load with constant magnitude and direction; when the linear bearing is

subjected to this load, its rated life can theoretically reach a walking distance of 100 kilometers,

and C50 is a walking distance of 50 kilometers. (Above according to ISO 14728-1)

According to ISO 14728-1 for the bearing steel used in the current technology, the calculated life

span of 90% survival rate for a single or batch of sufficient and identical linear bearings under normal

manufacturing quality and normal operating conditions is as follows:

C100

L >!rated life

C100 /C50!>!Dynamic Load Rating!)N*

P!!>!equivalent load!)N*

When using a ball type linear guide!!Ĵ= 3

When using roller linear guide !Ĵ=

(5) L = •105

C50

L = •5 x 104

Please refer to equations (6) and (7) for a comparison of the basic rated load capacity defined by the

two types of basic load capacity conversion when the standard rated load capacity C50 is taken as the

standard when the 50 km distance is taken as the rated life. (according to ISO14728-1)

(6) C50 = 1.26•C100

(7) C100 = 0.79•C50

Ball

(8) Lh= =

2•s•n•60 vm•60

According to the operating velocity and frequency, the service distance can be converted to service life, assuming

the equivalent load and average velocity are constant.

Lh!>!Rated life!)h*

L >!Rated life for walking 100 km!)m*

s!!>!Single stroke )m*

n!!>!Frequency of reciprocating stroke!)min-1*

Vm!!>!Average velocity!)m/min*

If the block alone experiences the torque from Mp and My direction, the maximum allowable torque

for the block to run smoothly is 0.2 to 0.3 times static torque. And the block with larger preload would

have larger maximum allowable torque and vice versa. When static torque Mp and My is larger than

maximum allowable torque, the jumping of the block will be caused when the ball is rolling through the

loaded / unloaded region in the block. If you have above mentioned design problem, please contact

our technical department.

When the block alone experiences the torque

Ccage is a basic dynamic load capacity value of block with ball chain, which is 120 to 130% of the CISO value according

to the practical test (see Page 8). Formulas (5), (6), and (7) also apply to C100/cage and C50 / cage

Basic dynamic load capacity CISO (general design) /

Ccage (ball chain design )

CISO：C100 /C50

Pcpc

PCylindrical roller

Pmax

Raceway surface

Stress

LINEAR MOTION TECHNOLOGY

15 16

v =

q1•v1 + q2•v2 +...+qn•vn

100

(10)

When the velocity changes, the equivalent velocity is calculated according to formula (10).

v!!>!equivalent velocity!)m/min*

q!>!portion of working distance per segment (%)

When the load and velocity all change, the equivalent load is calculated according to formula (11).

P = Ĵ

ĴĴ Ĵ

q1•v1•F1 + q2•v2•F2 +...+qn•vn•Fn

100

(11) v

P >!!equivalent load!)N*

When using ball-type linear guide!!Ĵ= 3

When using roller-type linear guide!!Ĵ=

q!>!percentage of walking distance per segment!)%*

v!!>!velocity of each segment!)m/min*

F1!>!load per segment!)N*

When the linear guide is subjected to any angular load and the direction of the force other than the horizontal

or vertical direction, the approximated value of equivalent load is calculated as (12).

3 ɕ)Xɕɕ)Yɕ

(12)

P >!equivalent load!!)N*

FX!!>!force at horizontal component!)N*

FY!!>!force at vertical component!)N*

When the linear guide experience both load and torque at the time, the approximated value of equivalent

load is be calculated by formula (13)

3 ɕ)ɕɕ0ɕ•

(13) 00

P >!equivalent load!)N*

F!!>!ORDGDSSOLHGWRWKH/0JXLGH!)N*

0!!>!static torque!!)Nm*

C0!!>!basic static load direction!)N*

00!!>!basic static torque in direction of force )Nm*

In general, the loads on the linear guide exert on the four major planes. However it can be the load from any angle.

In this case, the life of the linear guide is reduced. This can be interpreted by the flow of forces inside the system.

Line chart

As can be seen from the three diagrams in Figure A to Figure D, when subjected to upward, downward and lateral

loads, the force flow will be distributed to the two ball transfer.

Figure A

Lateral force 1 Lateral force 2

Figure B

Figure C Figure D

Under pressure Pull up

Ff1

Ff2

FS2

FS1

FS1、FS2：screw fixation

Ff1、Ff2：frictional

resistance

Ff= FS•Ǎ0

Equivalent load and Velocity

When the load and velocity are not constant, all actual loads and velocities must be considered, and it will impact the service life.

For each segment of each block, when the load changes, the equivalent load is calculated according to formula (9).

P = Ĵ

ĴĴ Ĵ

q1•F1 + q2•F2 +...+qn•Fn

100

(9)

P >!equivalent load!)N*

When using ball-type linear guide!!Ĵ= 3

When using roller-type linear guide!!Ĵ=

q!>!portion of working distance per segment (%)

F1!>!load per segment!)N*

Load capacity and life

Technical Information Operating temperature range

Friction

The linear guides have stable and constant running friction and slight start-up friction, which brings out the properties of the

product's low frictional resistance to the full.

Frn = μ· F Frn!>!Friction!)N*

F >!Load!)N*

Friction Factors

- Sealing system

- Collision between rolling elements and rolling

elements during operation

- Collision of the rolling elements with the return path

- Resistance caused by the rolling and sliding phenomenon at

the contact point of the rolling element and the raceway of

the rail

- Resistance caused by the squeezing of lubricant when the rolling

elements running

- Resistance caused by contaminations

Ý&aÝ&

7KH5OOHU*XLGH6HULHVIULFWLRQIDFWRULVDSSUR[ a

The Linear Guide Series have a permissible operating temperature between -40 °C

DQG&DQGWKHPD[LPXPWHPSHUDWXUHIRUVKRUWWHUPRSHUDWLRQFDQUHDFK&

Friction

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