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BOSCH REXROTH
R067823045


$1,065.69 USD
  • BOSCH REXROTH
  • Material:R067823045
  • Model:RADIAL LINEAR BUSH KBR-30-VD &

Quantity in stock: 0

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***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 RADIAL LINEAR BUSH KBR-30-VD (R067823045) is a high-precision, fully sealed radial linear bushing engineered to move very heavy loads with ease and reliability. Designed with a radial ball redirection, this bushing features numerous rows of balls which allow for extremely high load ratings, making it an ideal choice for heavy-duty guiding applications. The KBR-30-VD offers exceptional rigidity and extra smooth running, ensuring minimal distortion even when used on substructures that may not be perfectly precise. This linear bushing is characterized by its ability to maintain degrees of freedom in the circumferential direction, which can be crucial in applications where other linear guides might warp. The fully sealed design or optional wiper seals provide protection against contaminants, contributing to the durability and longevity of the bushing. For maintenance purposes, it is relubricatable. The construction of the KBR-30-VD includes a hardened and machined steel sleeve along with a ball retainer made from reinforced polyamide (PA), ensuring robust performance. The rolling bearing steel balls are held securely in place by two retaining rings. With a dynamic load capacity C and static load rating C that apply for the main direction of loading, this bushing is built to handle significant forces during operation. Additional features include a friction force and coefficient designed for optimal performance, shaft radial clearances designated as hbore K and hbore JS for precision fitting, and permissible ambient temperature ranges that ensure reliable operation under various conditions. The outer diameter D allows for compatibility with corresponding equipment sizes. In summary, the Bosch Rexroth RADIAL LINEAR BUSH KBR-30-VD offers superior load handling capabilities with high precision and flexibility for demanding linear motion applications where robustness and smooth operation are critical.


Radial LB, 30, fully sealed

radial linear bushing
Shaft diameter d = 30
Fully sealed

Unpacked Weight: 0.852 kg
High-precision linear bushing for moving very heavy loads
Radial ball redirection allows numerous rows of balls and extremely high load ratings
Heavy-duty guide with degrees of freedom in circumferential direction
For applications where other linear guides tend to warp due to imprecise substructures.
Very high rigidity
Extra smooth running
Fully sealed or without wiper seals
Separate wiper seals optional
Relubricatable
Hardened and machined steel sleeve
Ball retainer made of reinforced PA
Balls made of rolling bearing steel
Two retaining rings
Friction force12
Friction coefficient μ min.0.001
Rows of balls12
SeriesRadial
Footnote friction force FRFrictional drag for linear bushings with separate wiper seals
Productgroup ID17
Size W14
Footnote dynamic load capacity CThe stated load capacities apply for the main direction of loading ρ = 0°.
Permissible ambient temperature (max)+100
Max. acceleration amax50
Footnote friction coefficient μFriction coefficients of unsealed radial linear bushings when lubricated with oil.
Permissible ambient temperature-20 °C ... +100 °C
Footnote shaft radial clearance h6/bore K6Observe the reduction in service life owing to high preload
Outer diameter D60
Footnote shaft radial clearance h6/bore JS6Observe the reduction in service life owing to high preload
Size S13
Breakaway force24
Permissible ambient temperature (min)-20
Maximum permissible linear speed vmax2
Size D60
Size C h1175
Friction coefficient μ0,001 ... 0,002
Footnote static load capacity C0The stated load capacities apply for the main direction of loading ρ = 0°.
Static load rating C09520
Shaft diameter d30
Linear guide typeLinear bushing and shaft
Format of linear bushingsO – Open
Filter for linear bushings and shaftsLinear bushings
Dynamic load capacity C8500
Friction coefficient μ max.0.002
Weight0.852
Size D1 with tolerance
Shaft radial clearance h6/bore K6+6,-25
Shaft radial clearance h6/bore JS6+12,-20
Radial clearance shaft h6 / bore H6+21,-10

General technical data

Ø d

mm

30 40 50 60 80

amax

m/s²

50

vmax

m/s

2

m

kg

0.7 1.4 2.5 4.9 10.4

FR

N

8 1) 12 11 1) 16 14 1) 20 16 1) 24 20 1) 30

Breakaway force

N

24 32 40 48 60

μ 2)

0.001 ... 0.002

Rows of balls

12

Shaft radial clearance h6/bore H6

µm

+ 21
- 10
+ 23
- 13
+ 25
- 12
+ 26
- 15
+ 29
- 15

Shaft radial clearance h6/bore JS6 3)

µm

+ 12
- 20
+ 13
- 22
+ 14
- 23
+ 15
- 26
+ 16
- 27

Shaft radial clearance h6/bore K6 3)

µm

+ 6
- 25
+ 8
- 28
+ 7
- 30
+ 8
- 33
+ 8
- 36

Operating conditions

Permissible ambient temperature (min ... max)

-20 °C ... +100 °C
1) Frictional drag for Linear Bushings with separate wiper seals
2) Friction coefficients of unsealed radial Linear Bushings when lubricated with oil.
3) Observe the reduction in service life owing to high preload

Load capacities and load moments

Ød

mm

30 40 50 60 80

C 1)

N

8500 13900 20800 29500 54800

C0 1)

N

9520 16000 24400 34100 61500
1) The load ratings specified apply for the main direction of loading ρ = 0°.
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

FR

Friction force

N

m

Mass

kg

vmax

Maximum permissible speed

m/s

μ

Friction coefficient

Definition of dynamic load ratings

Rigidity

Combining a radial Linear Bushing with a continuously supported guide shaft ensures a precise, rigid design.

The following figure shows load-dependent spring. The diagram applies for installation: Without preload With zero clearance (no preload) for load direction ρ = 0° – 90° and 270° – 360°

Radial Linear Bushing rigidity

Installing with preload reduces spring. Additional spring in all parts of a linear guide (housing, shaft, shaft support rail) depends on the load direction. Guideline values for total spring with R1076 and R1010 elements: load direction factor multiplied by spring ∂ (from right diagram).

technical illustration-R067823045-Radial LB, 30, fully sealed
1) F = load N
2) ∂ = spring mm

Overall deflection depending on the load direction

Load direction

90°

180°

270°

Overall deflection

1 • ∂

1,8 • ∂

3,5 • ∂

1,8 • ∂

Sealing

Radial Linear Bushings come either

fully sealed Linear Bushings with integrated wiper seals and longitudinal seal, or with separate wiper seals

Effect of load direction on load rating

The load ratings C and C0 specified for Radial Linear Bushings apply for load direction ρ = 0°. If the external load is at an angle ρ = 90° – 270°, a reduced load capacity must be factored in. The dynamic load rating is then determined by multiplying the specified dynamic load rating C or C0 by the load direction factors fρ or fρ0. This reduced load capacity can be avoided by careful installation of the radial Linear Bushings.

Load direction factors

technical illustration-R067823045-Radial LB, 30, fully sealed
technical illustration-R067823045-Radial LB, 30, fully sealed
a) Fully sealed, lube port S1 center

Dimensions

Ød

mm

30 40 50 60 80

D

mm

60 75 90 110 145

C

h11

mm

75 100 125 150 200

S1

mm

3 4

W 1)

mm

14 19.5 24.5 29 39
1) Minimum size in relation to shaft diameter d.

Legend

Symbol

Description

Unit

Ød

Shaft diameters

mm

C/C0

Main direction of loading

Life expectancy calculation

General mounting instructions

Installation, securing

Lubrication

R1018, for radial linear bushings

technical illustration-R067823045-Radial LB, 30, fully sealed

R1018, for radial linear bushings

Shaft support rail material: Steel

Catalog

Instructions

Service

Wiper seals for open-type Radial Linear Bushings

technical illustration-R067823045-Radial LB, 30, fully sealed

Wiper seals for open-type Radial Linear Bushings

Steel retaining ring Elastomer wiper seal

Catalog

Instructions

Service

CAD data

Directives and standards

Notes