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BOSCH REXROTH
R072520600


$168.48 USD
  • BOSCH REXROTH
  • Material:R072520600
  • Model:TORQUE RESIST.BUSH KBDR4-F-6DD

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-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
Size V3.3
Size L with tolerance25 mm -0,2
SeriesTorque
Productgroup ID17
Size D h614
Footnote dynamic load capacity CThe load capacities indicated are minimal values as the direction of loading cannot always be clearly defined.
Shaft diameter, detailed6
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 Mt02.4
Size S3.4
Size D130
Footnote static load capacity C0The load capacities indicated are minimal values as the direction of loading cannot always be clearly defined.
Size L15
Static load rating C02280
Shaft diameter d6
Dynamic torsional moment load capacity Mt1.2
Linear guide typeLinear bushing and shaft
Filter for linear bushings and shaftsLinear bushings
Format of linear bushingsF – Flange
Dynamic load capacity C970
Size L25
Footnote diameter dActual shaft diameter varies
Size D222
Size L27.5
Weight0.041
Size D1 with tolerance30 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-R072520600-Torque-resistant LB, 4-F-6, with two seals
1) fs = factor
2) s = movement path

Service life, shaft straightness, stabilized installation

Definition of dynamic load ratings

technical illustration-R072520600-Torque-resistant LB, 4-F-6, 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-R072520600-Torque-resistant LB, 4-F-6, with two seals

Lubrication

Directives and standards

Notes