BOSCH REXROTH
LINEAR BUSHING
R066802530
$70.43
- BOSCH REXROTH
- Material:R066802530
- Model:SEGMT.LINEAR BUSH. KBSE-25-NR
Quantity in stock: 3
Segmental LB, closed, 25, without seal, corrosion-resistant
Segmental linear bushing
Closed
Shaft diameter d = 25
Without seal
Version: Corrosion-resistant
Unpacked Weight: 0.0613 kg
| Designed especially for general requirements |
| Stainless steel for the medical, chemistry and food industries |
| Separate wiper seals optional |
| Segmental load bearing plates made of 1.4300 steel |
| Balls made of 1.3541 steel |
| Ball retainer and retaining rings made of PA 11 |
| Data Sheet | Download Data Sheet |
| 2D CAD | Download 2D CAD |
| 2D CAD | Download 2D CAD |
| 3D CAD | Download 3D CAD |
| 3D CAD | Download 3D CAD |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Friction force | 3 |
| Footnote minimum dynamic load capacity Cmin | The dynamic load capacities are based on a total travel of 100,000 m. When based on 50,000 m, the C values in the table are to be multiplied by 1.26. |
| Friction coefficient μ min. | 0.001 |
| Footnote maximum dynamic load capacity Cmax | The dynamic load capacities are based on a total travel of 100,000 m. When based on 50,000 m, the C values in the table are to be multiplied by 1.26. |
| Rows of balls | 6 |
| Series | Segment |
| Footnote friction force FR | Frictional drags generated by linear bushings with seals on both ends when not under radial load. This depends on speed and lubrication. |
| Productgroup ID | 17 |
| Maximum dynamic load capacity Cmax | 870 |
| Permissible ambient temperature (max) | |
| Max. acceleration amax | 150 |
| Footnote friction coefficient μ | 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. |
| Permissible ambient temperature | -10 °C ... +65 °C |
| Outer diameter D | 37 |
| Breakaway force | 7 |
| Permissible ambient temperature (min) | |
| Maximum permissible linear speed vmax | 3 |
| Size C js14 | 37 |
| Size D | 37 |
| Friction coefficient μ | 0,001 ... 0,004 |
| Minimum static load capacity C0min | 1090 |
| Maximum static load capacity C0max | 1400 |
| Minimum dynamic load capacity Cmin | 820 |
| Shaft diameter d | 25 |
| Linear guide type | Linear bushing and shaft |
| Filter for linear bushings and shafts | Linear bushings |
| Format of linear bushings | – Closed |
| Footnote minimum static load capacity C0min | |
| Friction coefficient μ max. | 0.004 |
| Footnote maximum static load capacity C0max | |
| Weight | 0.0613 |
| Size D1 with tolerance | |
| Radial clearance shaft h6/bore K7 | |
| Radial clearance shaft/bore h6/H7 |
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 ... +65 °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 |
240 | 360 | 510 | 820 | 1200 | 1940 |
|
Cmax |
N |
290 | 430 | 540 | 870 | 1270 | 2050 |
|
C0min |
N |
330 | 490 | 690 | 1090 | 1570 | 2610 |
|
C0max |
N |
490 | 730 | 890 | 1400 | 2000 | 3340 |
| 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.
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 .
Definition of dynamic load ratings
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 |
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
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.
Wiper seals for corrosion-resistant Segmental Linear Bushings
Wiper seals for corrosion-resistant Segmental Linear Bushings
Metal case Elastomer wiper seal For axial securement.Catalog
Instructions
Service
CAD data
Metal cases for stainless Segmental Linear Bushings
Metal cases for stainless Segmental Linear Bushings
Stainless, made of 1.4301 For axial securement.Catalog
Instructions
Service
CAD data