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BOSCH REXROTH
R074251200

LB Standard- 12-Tandem Flange -100Cr6

$209.11

BOSCH REXROTH

MATERIAL:  R074251200

SUMMARY:  LB Standard- 12-Tandem Flange -100Cr6

Quantity in stock: 1

Quantity Details:
  • Hydrotech Stock: 0 can ship March 28, 2024
  • Factory Stock: 1 can ship June 27, 2024
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General technical data

Ø d

mm

8 12 16 20 25 30 40

amax

m/s²

100

vmax

m/s

2.5

m

kg

0.05 0.09 0.14 0.23 0.5 0.72 1.6

FR 1)

N

0.5 2 3 4 5 6 8

Breakaway force

N

1 6 9 12 14 18 24

Rows of balls

4 5 6

Working bore diameter tolerance

µm

+ 9
- 1
+ 11
- 1
+ 13
- 2
+ 16
- 4

Shaft radial clearance h6 2)

µm

+ 15
+ 2
+ 17
+ 2
+ 19
+ 2
+ 20
+ 3
+ 22
+ 2
+ 27
+ 1

Operating conditions

Permissible ambient temperature (min ... max) 3)

-10 °C ... +80 °C
1) Frictional drags generated by Linear Bushings with integrated wiper seals on two sides when not under radial load. The frictional drags depend on speed and lubrication.
2) Determined from working bore diameter and shaft tolerance statistics. Recommended housing bore tolerance: H6 or H7.
3) Only unsealed Linear Bushings with steel ball retainers may be used at higher temperatures. Make allowance for reductions in load capacity.

Load capacities and load moments

Ød

mm

8 12 16 20 25 30 40

Cmin

N

340 650 750 1100 1250 2000 2800

Cmax

N

390 750 860 1300 1350 2150 3000

C0min

N

470 840 880 1720 3240 4000 6600

C0max

N

660 1200 1260 2500 4200 5000 8400

ML0

Nm

4.5 11 13 26 61 82 165
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

ML0

Static longitudinal moment load capacity

Nm

m

Mass

kg

vmax

Maximum permissible speed

m/s

Impact of load direction on load rating of closed Linear Bushings

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-R074251200-LB Standard- 12-Tandem Flange  -100Cr6

Definition of dynamic load ratings

Installation dimensions/interchangeability

Standard Linear Bushings have the same installation dimensions as super Linear Bushings. They are interchangeable, differ however in terms of securing, radial clearance, load ratings and lubrication.

Sealing

Standard Linear Bushings come with a wiper seal with shaft diameters of 5 and higher. Open standard Linear Bushings with shaft diameters 20 to 80 can also come fully sealed (with longitudinal seal; increased friction).

technical illustration-R074251200-LB Standard- 12-Tandem Flange  -100Cr6

Dimensions

Ød

mm

8 12 16 20 25 30 40

B

mm

25 32 35 42 50 60 75

D

16 mm -0.013 22 mm -0.016 26 mm -0.016 32 mm -0.019 40 mm -0.019 47 mm -0.019 62 mm -0.022

D1

mm

32 42 46 54 62 76 98

D2

mm

24 32 36 43 51 62 80

L

46 mm ±0.3 61 mm ±0.3 68 mm ±0.3 80 mm ±0.3 112 mm ±0.3 123 mm ±0.3 151 mm ±0.3

L1

mm

5 6 8 10 13

L1

5 mm 6 mm 8 mm 10 mm 13 mm

L2

mm

20.5 27.5 31 36 52 56.5 69

S

mm

3.5 4.5 5.5 6.6 9

V

mm

3.1 4.1 5.1 6.1 8.1

Legend

Symbol

Description

Unit

Ød

Shaft diameters

mm

ML0

Static torsional moment laod capacity

Nm

Life expectancy calculation

General mounting instructions

Customer-built housings

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-R074251200-LB Standard- 12-Tandem Flange  -100Cr6

Lubrication

Directives and standards

Notes