BOSCH REXROTH
R072520600
$168.48 USD
- BOSCH REXROTH
- Material:R072520600
- Model:TORQUE RESIST.BUSH KBDR4-F-6DD
Quantity in stock: 0
The Bosch Rexroth TORQUE RESIST.BUSH KBDR4-F-6DD (R072520600) is a high-performance, torqueresistant linear bushing designed for self-supporting, torsionally stiff guides with a single shaft. This flanged version linear bushing is equipped with four ball guide grooves that are essential for transferring torque effectively. It features an integrated wiper seal system and two additional seals to ensure protection against contamination and to maintain lubrication, enhancing the durability and lifespan of the bushing. The KBDR4-F-6DD is built with a hardened and ground outer sleeve and contains a POM ball retainer that ensures smooth ball movement. The balls themselves are crafted from rolling bearing steel, which provides excellent resistance to wear and fatigue. This model allows for relubrication, which can be critical for maintaining performance over time in various applications. With its ability to handle dynamic load capacities as well as static and dynamic torsional moment load capacities, this linear bushing is suitable for a range of motion control applications requiring precise guidance and high torque transfer. The product's design accommodates machined shaft profiles customized to customer specifications. The size V series torque product has a considerable static load rating C, indicating its capability to withstand significant loads without deformation or failure. It operates efficiently within a wide range of ambient temperatures and can sustain maximum acceleration without compromise in performance. Additionally, it supports high linear speeds while maintaining stability and accuracy. The KBDR4-F-6DD's overall design focuses on providing reliable performance in linear motion systems where precise guiding combined with torque transmission is required. Its robust construction makes it an ideal choice for various demanding applications where precision and durability are paramount.
Torque-resistant LB, 4-F-6, with two seals
Torque-resistant linear bushing (flanged version)
Ball guide grooves = 4
Shaft diameter d = 6
With two seals
Without shaft
Unpacked Weight: 0.041 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 |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Size V | 3.3 |
| Size L with tolerance | 25 mm -0,2 |
| Series | Torque |
| Productgroup ID | 17 |
| Size D h6 | 14 |
| 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 | 6 |
| 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 | 2.4 |
| Size S | 3.4 |
| Size D1 | 30 |
| Footnote static load capacity C0 | The load capacities indicated are minimal values as the direction of loading cannot always be clearly defined. |
| Size L1 | 5 |
| Static load rating C0 | 2280 |
| Shaft diameter d | 6 |
| Dynamic torsional moment load capacity Mt | 1.2 |
| 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 | 970 |
| Size L | 25 |
| Footnote diameter d | Actual shaft diameter varies |
| Size D2 | 22 |
| Size L2 | 7.5 |
| Weight | 0.041 |
| Size D1 with tolerance | 30 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.