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BOSCH REXROTH
R072524000


$571.59 USD
  • BOSCH REXROTH
  • Material:R072524000
  • Model:TORQUE RESIST.BUSH KBDR4-F-40DD

Quantity in stock: 0

Note: Sales tax, and shipping will be calculated at checkout.
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
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
Size V8.6
Size L with tolerance100 mm -0,3
SeriesTorque
Productgroup ID17
Size D h660
Footnote dynamic load capacity CThe load capacities indicated are minimal values as the direction of loading cannot always be clearly defined.
Shaft diameter, detailed37.4
Permissible ambient temperature (max)+80
Max. acceleration amax150
Permissible ambient temperature-10 °C ... +80 °C
Permissible ambient temperature (min)-10
Maximum permissible linear speed vmax3
Static torsional moment load capacity Mt0882
Size S9
Size D190
Footnote static load capacity C0The load capacities indicated are minimal values as the direction of loading cannot always be clearly defined.
Size L114
Static load rating C037500
Shaft diameter d40
Dynamic torsional moment load capacity Mt500
Linear guide typeLinear bushing and shaft
Filter for linear bushings and shaftsLinear bushings
Format of linear bushingsF – Flange
Dynamic load capacity C24400
Size L100
Footnote diameter dActual shaft diameter varies
Size D272
Size L236
Weight1.218
Size D1 with tolerance90 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 .

technical illustration-R072524000-Torque-resistant LB, 4-F-40, with two seals
1) fs = factor
2) s = movement path

Service life, shaft straightness, stabilized installation

Definition of dynamic load ratings

technical illustration-R072524000-Torque-resistant LB, 4-F-40, with two seals
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

Life expectancy calculation

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.

technical illustration-R072524000-Torque-resistant LB, 4-F-40, with two seals

Lubrication

Directives and standards

Notes