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BOSCH REXROTH
R066803000
All Other Products

LB Segmental- 30-closed -C60

$48.25

BOSCH REXROTH

MATERIAL:  R066803000

SUMMARY:  LB Segmental- 30-closed -C60

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General technical data

Ø d

mm

12 16 20 25 30 40

amax

m/s²

150

vmax

m/s

3

m

kg

0.013 0.02 0.031 0.057 0.096 0.17

FR 1)

N

1.5 2 2.5 3 4 5

Breakaway force

N

3 4.5 5 7 9 12

μ 2)

0.001 ... 0.004

Rows of balls

5 6

Shaft radial clearance h6/bore H7

µm

+ 32
0
+ 33
- 1
+ 36
0
+ 42
- 1

Shaft radial clearance h6/bore K7

µm

+ 17
- 15
+ 18
- 16
+ 18
- 18
+ 21
- 22

Operating conditions

Permissible ambient temperature (min ... max)

-10 °C ... +80 °C
1) Frictional drags generated by Linear Bushings with seals on both ends when not under radial load. This depends on speed and lubrication.
2) Friction coefficients of unsealed Linear Bushings when lubricated with oil. The friction coefficient is lowest under heavy load, but can still be above the specified value even under a low load.

Load capacities and load moments

Ød

mm

12 16 20 25 30 40

Cmin

N

480 720 1020 1630 2390 3870

Cmax

N

570 860 1080 1730 2530 4100

C0min

N

420 620 870 1360 1960 3270

C0max

N

620 910 1120 1750 2510 4180
The load ratings are based on a total travel of 100, 00 m. When based on 50 000 m, the  values in the table need to be multiplied by 1.26.

Legend

Symbol

Description

Unit

Ød

Shaft diameters

mm

amax

Maximum acceleration travel

m/s2

Cmax

Maximum dynamic load rating

N

Cmin

Minimum dynamic load rating

N

C0max

Maximum static load rating

N

C0min

Minimum static load rating

N

FR

Friction force

N

m

Mass

kg

vmax

Maximum permissible speed

m/s

μ

Friction coefficient

Effect of load direction on load rating

The listed load ratings should be chosen depending on installation in minimum or maximum position and should be based on the calculations. If the load direction is clearly defined and the Linear Bushings can be installed in maximum position, the load ratings Cmax. (dynamic load rating) and C0 max (static load rating) can be used. If aligned installation is not possible or the load direction is not defined, the minimum load ratings must be used.

 

technical illustration-R066803000-LB Segmental- 30-closed         -C60

Reduced load capacity with short stroke

In case of a short stroke, the service life of the shaft is less than that of the segmental Linear Bushing. The load ratings C specified in the tables must therefore be multiplied by the factor f.s .

technical illustration-R066803000-LB Segmental- 30-closed         -C60

Definition of dynamic load ratings

technical illustration-R066803000-LB Segmental- 30-closed         -C60

Dimensions

Ød

mm

12 16 20 25 30 40

D

mm

20 25 30 37 44 56

C

js14

mm

24 28 30 37 44 56

Selection guide for operation under difficult conditions

For constantly humid or damp conditions caused, for instance, by water-based coolants/lubricants, we recommend the stainless steel Linear Bushing with parts made of steel in accordance with ISO 683-17 / EN 10088.

Life expectancy calculation

Installation

Install the segmental Linear Bushings using an arbor press (see General Installation Instructions). In order to prevent contamination in the segmental Linear Bushing, we recommend making sure that a segmental load bearing plate is covered by the slot when installing in slotted receivers.

Fixation

technical illustration-R066803000-LB Segmental- 30-closed         -C60technical illustration-R066803000-LB Segmental- 30-closed         -C60

a) Secured with wiper seal

b) Secured with metal case

General mounting instructions

Initial lubrication

Linear bushings do not come with initial lubrication. Grease the Linear Bushings before use. Service life data is based on initial lubrication and relubricated Linear Bushings.

technical illustration-R066803000-LB Segmental- 30-closed         -C60

Lubrication

Wiper seals for Segmental Linear Bushings

technical illustration-R066803000-LB Segmental- 30-closed         -C60

Wiper seals for Segmental Linear Bushings

Metal case Elastomer wiper seal For axial securement.

Catalog

Instructions

Service

CAD data

Metal cases for Segmental Linear Bushings

technical illustration-R066803000-LB Segmental- 30-closed         -C60

Metal cases for Segmental Linear Bushings

Normal (galvanized) For axial securement.

Catalog

Instructions

Service

CAD data

Directives and standards

Notes