BOSCH REXROTH
R072524000
$571.59 USD
- BOSCH REXROTH
- Material:R072524000
- Model:TORQUE RESIST.BUSH KBDR4-F-40DD
Quantity in stock: 0
The Bosch Rexroth TORQUE RESIST.BUSH KBDR4-F-40DD (R072524000) is a high-performance, torqueresistant linear bushing designed for self-supporting, torsionally stiff guides with a single shaft. It features four ball guide grooves that are essential for transferring torque effectively. The bushing is engineered for applications requiring precise linear motion with the ability to resist torsional forces, making it suitable for various mechanical and automation systems. This model comes equipped with two integrated wiper seals to ensure long-lasting operation by preventing the ingress of contaminants. The outer sleeve is hardened and ground to provide a durable and smooth surface for the rolling elements. Inside, a POM ball retainer houses balls made of rolling bearing steel, ensuring reliable motion and load transfer. Additionally, this bushing is relubricatable, which extends its service life by allowing maintenance and lubrication as needed. The KBDR4-F-40DD has been designed with attention to detail in terms of size and weight specifications to ensure compatibility with corresponding systems. The dynamic load capacity C indicates minimal values due to variable loading directions, while the static torsional moment load capacity Mt provides an insight into the unit's ability to withstand stationary forces without movement. Furthermore, this model can operate within a wide range of ambient temperatures, from minimum permissible levels up to a maximum threshold, ensuring versatility across different working environments. It also supports maximum permissible linear speeds and accelerations without compromising performance or safety. Overall, the Bosch Rexroth TORQUE RESIST.BUSH KBDR4-F-40DD (R072524000) represents a robust solution for applications demanding high precision linear guidance coupled with significant resistance to torsional loads. It’s meticulously crafted features make it an essential component in advanced mechanical systems where reliability and durability are paramount.
Torque-resistant LB, 4-F-40, with two seals
Torque-resistant linear bushing (flanged version)
Ball guide grooves = 4
Shaft diameter d = 40
With two seals
Without shaft
Unpacked Weight: 1.218 kg
| For self-supporting, torsionally stiff guides with only one shaft |
| With four ball guide grooves for transferring torque |
| Matching shaft profiles with machined ball guide grooves |
| Shafts machined to customer specification |
| Integrated wiper seals |
| Hardened and ground outer sleeve |
| POM ball retainer |
| Balls made of rolling bearing steel |
| Relubricatable |
| Data Sheet | Download Data Sheet |
| 2D CAD | Download 2D CAD |
| 2D CAD | Download 2D CAD |
| 3D CAD | Download 3D CAD |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Size V | 8.6 |
| Size L with tolerance | 100 mm -0,3 |
| Series | Torque |
| Productgroup ID | 17 |
| Size D h6 | 60 |
| Footnote dynamic load capacity C | The load capacities indicated are minimal values as the direction of loading cannot always be clearly defined. |
| Shaft diameter, detailed | 37.4 |
| Permissible ambient temperature (max) | |
| Max. acceleration amax | 150 |
| Permissible ambient temperature | -10 °C ... +80 °C |
| Permissible ambient temperature (min) | |
| Maximum permissible linear speed vmax | 3 |
| Static torsional moment load capacity Mt0 | 882 |
| Size S | 9 |
| Size D1 | 90 |
| Footnote static load capacity C0 | The load capacities indicated are minimal values as the direction of loading cannot always be clearly defined. |
| Size L1 | 14 |
| Static load rating C0 | 37500 |
| Shaft diameter d | 40 |
| Dynamic torsional moment load capacity Mt | 500 |
| Linear guide type | Linear bushing and shaft |
| Filter for linear bushings and shafts | Linear bushings |
| Format of linear bushings | F – Flange |
| Dynamic load capacity C | 24400 |
| Size L | 100 |
| Footnote diameter d | Actual shaft diameter varies |
| Size D2 | 72 |
| Size L2 | 36 |
| Weight | 1.218 |
| Size D1 with tolerance | 90 mm |
General technical data
|
Ø d 1) |
mm |
6 | 8 | 10 | 13 | 16 | 20 | 25 | 30 | 40 | 50 |
|
amax |
m/s² |
150 | |||||||||
|
vmax |
m/s |
3 | |||||||||
|
m |
kg |
0.037 | 0.042 | 0.094 | 0.1 | 0.2 | 0.22 | 0.32 | 0.51 | 1.15 | 2.1 |
|
Operating conditions |
|||||||||||
|
Permissible ambient temperature (min ... max) |
-10 °C ... +80 °C | ||||||||||
| 1) | Actual shaft diameter varies |
Load capacities and load moments
|
Ød 1) |
mm |
6 | 8 | 10 | 13 | 16 | 20 | 25 | 30 | 40 | 50 |
|
C 2) |
N |
970 | 1150 | 2170 | 2120 | 4860 | 6200 | 9800 | 14800 | 24400 | 36600 |
|
C0 2) |
N |
2280 | 2870 | 5070 | 4890 | 11200 | 11300 | 16100 | 23200 | 37500 | 74200 |
|
Mt |
Nm |
1.2 | 1.7 | 3.5 | 16.7 | 48 | 66 | 129 | 229 | 500 | 1100 |
|
Mt0 |
Nm |
2.4 | 3.7 | 8.2 | 39.2 | 110 | 133 | 239 | 412 | 882 | 3180 |
| 1) | Actual shaft diameter varies |
| 2) | The load ratings indicated are minimal values as the load direction cannot always be clearly defined. |
| 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 |
|
C |
Dynamic load capacity |
N |
|
C0 |
Static load capacity |
N |
|
m |
Mass |
kg |
|
Mt |
Dynamic torsional moment load capacity |
Nm |
|
Mt0 |
Static torsional moment laod capacity |
Nm |
|
vmax |
Maximum permissible speed |
m/s |
Reduced load capacity with short stroke
In case of short stroke, the service life of the shaft is less than that of the torque-resistant Linear Bushing. The dynamic load ratings C in the tables must therefore be multiplied by the factor fs .
| 1) | fs = factor |
| 2) | s = movement path |
Service life, shaft straightness, stabilized installation
Definition of dynamic load ratings
| a) | Concentricity tolerance |
Dimensions
|
Ød 1) |
mm |
6 | 8 | 10 | 13 | 16 | 20 | 25 | 30 | 40 | 50 | |
|
Ød ‒ actual 2) |
mm |
6 | 8 | 10 | 13 | 16 | 18.2 | 23 | 28 | 37.4 | 47 | |
|
D |
h6 |
mm |
14 | 16 | 21 | 24 | 31 | 32 | 37 | 45 | 60 | 75 |
|
D1 |
mm |
30 | 32 | 42 | 43 | 50 | 51 | 60 | 70 | 90 | 113 | |
|
D2 |
mm |
22 | 24 | 32 | 33 | 40 | 47 | 54 | 72 | 91 | ||
|
L |
25 mm -0.2 | 33 mm -0.2 | 36 mm -0.2 | 50 mm -0.2 | 60 mm -0.2 | 70 mm -0.3 | 80 mm -0.3 | 100 mm -0.3 | 112 mm -0.3 | |||
|
L1 |
mm |
5 | 6 | 7 | 9 | 10 | 14 | 16 | ||||
|
L1 |
5 mm | 6 mm | 7 mm | 9 mm | 10 mm | 14 mm | 16 mm | |||||
|
L2 |
mm |
7.5 | 10.5 | 11 | 18 | 23 | 26 | 30 | 36 | 40 | ||
|
O |
mm |
1 | 1.5 | 2 | 3 | 4 | ||||||
|
S 3) |
mm |
3.4 | 4.5 | 5.5 | 6.6 | 9 | 11 | |||||
|
V |
mm |
3.3 | 4.4 | 5.4 | 6.5 | 8.6 | 11 | |||||
| 1) | Actual shaft diameter varies |
| 2) | h7 tolerance |
| 3) | Fixing screws ISO 4762-8.8 |
Recommended housing tolerance: H6 or H7
Installation
Radial clearance: approx. ± 5 μm
Linear bushing and shaft for torque-resistant Linear Bushings with four ball guide grooves come separately. Align the tracks and wiper seals when inserting the shaft and make sure they are not skewed!
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.