BOSCH REXROTH
R074022530
All Other Products
LB Standard- 25-Flange -NR
BOSCH REXROTH
MATERIAL: R074022530
SUMMARY: LB Standard- 25-Flange -NR
Quantity in stock: 0
General technical data
|
Ø d |
mm |
5 | 8 | 12 | 16 | 20 | 25 | 30 | 40 |
|
amax |
m/s² |
100 | |||||||
|
vmax |
m/s |
2.5 | |||||||
|
m |
kg |
0.02 | 0.033 | 0.064 | 0.09 | 0.15 | 0.3 | 0.47 | 0.98 |
|
FR 1) |
N |
0.4 | 0.5 | 2 | 3 | 4 | 5 | 6 | 8 |
|
Breakaway force |
N |
0.8 | 1 | 6 | 9 | 12 | 14 | 18 | 24 |
|
Rows of balls |
4 | 5 | 6 | ||||||
|
Working bore diameter tolerance |
µm |
+ 8 0 |
+ 9 - 1 |
+ 11 - 1 |
+ 13 - 2 |
||||
|
Shaft radial clearance h6 2) |
µm |
+ 14 + 2 |
+ 15 + 2 |
+ 16 + 3 |
+ 17 + 2 |
+ 19 + 2 |
+ 20 + 3 |
+ 24 + 3 |
|
|
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 |
5 | 8 | 12 | 16 | 20 | 25 | 30 | 40 |
|
Cmin |
N |
160 | 210 | 400 | 460 | 680 | 780 | 1250 | 1720 |
|
Cmax |
N |
185 | 240 | 460 | 530 | 800 | 830 | 1320 | 1820 |
|
C0min |
N |
180 | 235 | 420 | 440 | 860 | 1620 | 2000 | 3300 |
|
C0max |
N |
250 | 330 | 600 | 630 | 1250 | 2100 | 2500 | 4200 |
| 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 |
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.
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).
Dimensions
|
Ød |
mm |
5 | 8 | 12 | 16 | 20 | 25 | 30 | 40 |
|
B |
mm |
22 | 25 | 32 | 35 | 42 | 50 | 60 | 75 |
|
D |
12 mm -0.013 | 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 |
28 | 32 | 42 | 46 | 54 | 62 | 76 | 98 |
|
D2 |
mm |
20 | 24 | 32 | 36 | 43 | 51 | 62 | 80 |
|
L |
22 mm ±0.3 | 25 mm ±0.3 | 32 mm ±0.3 | 36 mm ±0.3 | 45 mm ±0.3 | 58 mm ±0.3 | 68 mm ±0.3 | 80 mm ±0.3 | |
|
L1 |
mm |
5 | 6 | 8 | 10 | 13 | |||
|
L1 |
5 mm | 6 mm | 8 mm | 10 mm | 13 mm | ||||
|
S |
mm |
3.5 | 4.5 | 5.5 | 6.6 | 9 | |||
|
V |
mm |
3.1 | 4.1 | 5.1 | 6.1 | 8.1 | |||
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.
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