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BOSCH REXROTH
R067311240


$66.87 USD
  • BOSCH REXROTH
  • Material:R067311240
  • Model:KBB-O-12-D

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 SUPER LINEAR BUSH KBB-O-12-D (R067311240) is a high-performance linear bushing designed for smooth travel and long service life without the need for self-alignment features. It is specifically tailored to operate on fully supported shafts, making it an ideal solution for applications where other linear guides may experience warping due to imprecise substructures. With a shaft diameter of 12 mm and constructed from steel bearing plates with precision-machined ball guide grooves, this linear bushing ensures exceptional travel smoothness. The KBB-O-12-D model boasts a high travel speed capability, reaching up to 5 m/s, and can handle maximum accelerations effectively. It comes with one seal, offering protection against contaminants while maintaining low frictional drag. The ball retainer and outer sleeve are made of either PA or POM, with balls crafted from rolling bearing steel—no initial lubrication is required upon installation. This linear bushing has a dynamic load capacity C of 510 N and a static load rating C0 of 784 N, indicating its ability to withstand significant loads in the main direction of loading. The friction coefficient ranges from a minimum of 0.01 to a maximum of 0.02, ensuring efficient operation under various conditions. The permissible ambient temperature range for this product spans from -20°C to +80°C, allowing it to function effectively in diverse environments. The SUPER LINEAR BUSH KBB-O-12-D features an outer diameter E size of 22 mm and has been tested for total travel ranging from 100 km to 10000 km without failure—highlighting its durability and reliability in demanding situations. Weighing just 0.028 kg, it also offers an advantageous combination of lightweight design and robust performance. In summary, the Bosch Rexroth SUPER LINEAR BUSH KBB-O-12-D (R067311240) stands out as a low-cost yet high-quality solution for linear motion requirements demanding precise guidance without the necessity for self-alignment capabilities or frequent maintenance. Its design ensures prolonged service life even at high speeds and under substantial loads, making it suitable for various industrial applications requiring reliable linear movement.


Super LB B, open, 12, with one seal

Super linear bushing
Super B (no self-alignment feature)
Open
Shaft diameter d = 12
With one seal

Unpacked Weight: 0.021 kg
Low-cost linear bushing for high requirements
Steel bearing plates with machined ball guide grooves and optimized ball lead-in chamfers for outstandingly smooth travel and a long service life
Without self-alignment feature for transferring lower tipping force along the axial direction
Open linear bushing on fully supported shafts for applications where other linear guides tend to warp due to imprecise substructures.
High travel speed (5 m/s)
With longitudinal seal
Integrated wiper seals, external seals or no wiper seals
Ball retainer and outer sleeve made of PA or POM
Balls made of rolling bearing steel
No initial lubrication
Rows of balls4
SeriesSuper B (no self-alignment feature)
Footnote friction force FR1. One wiper seal: Multiply value with factor 0.5 2. Frictional drags generated by linear bushings with integrated wiper seals on two sides when not under radial load. The frictional drags depend on speed and lubrication.
Size C1 H1322.6
Footnote dynamic load capacity CThe load capacities apply for the main direction of loading.
Max. acceleration amax150
Footnote friction coefficient μFriction coefficients of unsealed linear bushings when lubricated with oil. The friction coefficient is lowest under heavy load, but can still be above the specified value even under a low load.
Permissible ambient temperature-10 °C ... +80 °C
Size E6.5
Outer diameter D22
Breakaway force1.5
Maximum permissible linear speed vmax3
Size D22
Friction coefficient μ0,001 ... 0,0025
Footnote static load capacity C0The load capacities apply for the main direction of loading.
Static load rating C0510
Size C h1332
Size C21.3
Friction coefficient μ max.0.0025
Note: Maximum permissible speed vmaxSpeeds of up to 5 m/s possible. Service life is limited by heightened wear to plastic parts. Tests have shown total travel from 50 • 105 m to 100 • 105 m without failure.
Friction force0.8
Friction coefficient μ min.0.001
Productgroup ID17
Permissible ambient temperature (max)+80
Angle α66
Permissible ambient temperature (min)-10
Friction force FR footnote 2Frictional drags generated by linear bushings with integrated wiper seals on two sides when not under radial load. The frictional drags depend on speed and lubrication.
Footnote breakaway forceOne wiper seal: Multiply value with factor 0.5
Shaft diameter d12
Linear guide typeLinear bushing and shaft
Filter for linear bushings and shaftsLinear bushings
Format of linear bushingsO – Open
Dynamic load capacity C1060
Weight0.021
Size D1 with tolerance
Radial clearance shaft h6/bore K7+23,-5
Radial clearance shaft/bore h6/H7+38,+10
Radial clearance shaft h6/bore M7+17,-11

General technical data

Ø d

mm

12 16 20 25 30 40 50

amax

m/s²

150

vmax 1)

m/s

3

m

kg

0.018 0.022 0.051 0.102 0.155 0.3 0.48

FR 2)

N

0.8 3 1 4 1.5 5 2 6 2.5 8 3 10 4 12

Breakaway force 3)

N

1.5 6 2 9 3 10 4.5 14 6 18 8 24 10 30

μ 4)

0.001 ... 0.0025

Rows of balls

4 5

Shaft radial clearance h6/bore H7

µm

+ 38
+ 10
+ 43
+ 11
+ 50
+ 12

Shaft radial clearance h6/bore K7

µm

+ 23
- 5
+ 25
- 7
+ 29
- 9

Shaft radial clearance h6/bore M7

µm

+ 17
- 11
+ 18
- 14
+ 20
- 18

Operating conditions

Permissible ambient temperature (min ... max)

-10 °C ... +80 °C
1) Speeds of up to 5 m/s possible. Service life is limited by heightened wear to plastic parts. Tests have shown total travel from 50 • 105 m to 100 • 105 m without failure.
2) Frictional drags generated by Linear Bushings with integrated wiper seals on two sides when not under radial load. The frictional drags depend on speed and lubrication.
3) One wiper seal: Multiply by a factor of 0.5.
4) Friction coefficients of unsealed Linear Bushings when lubricated with oil. The friction coefficient is lowest under heavy load, but can still be above the specified value even under a low load.

Load capacities and load moments

Ød

mm

12 16 20 25 30 40 50

C 1)

N

1060 1500 2570 5040 5020 8620 12500

C0 1)

N

510 830 1180 2770 2880 4480 6620
1) The load ratings apply for the main direction of loading.
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

For load in the direction of opening, please refer to the loading diagrams (see "Diagrams" section).

Impact of load direction on load rating of open Linear Bushings

The load ratings C and C0 apply for the main direction of loading ρ = 0°. For all other load directions, the load ratings must be multiplied by the factors fρ (dynamic load rating C) or fρ0 (static load rating C0).

Installing specific Linear Bushings can prevent reductions in load capacity (see Linear Set with side opening).

technical illustration-R067311240-Super LB B, open, 12, with one seal

Reduced load capacity with short stroke

In case of short stroke, the service life of the shaft is less than that of the super Linear Bushing. The load ratings C specified in the tables must therefore be multiplied by the factor f.s .

technical illustration-R067311240-Super LB B, open, 12, with one seal
1) fs = factor
2) s = movement path

Definition of dynamic load ratings

Sealing

Super linear bushings come both with integrated and separate wiper seals. The separate wiper seals are specially designed for applications in high contamination environments. An additional seal (for example, bellows, extendable cover) is necessary for extremely high contamination environments. The open super linear bushings can also come fully sealed (with longitudinal seal), however this increases friction.

technical illustration-R067311240-Super LB B, open, 12, with one seal
technical illustration-R067311240-Super LB B, open, 12, with one seal

Dimensions

Ød

mm

12 16 20 25 30 40 50

D

mm

22 26 32 40 47 62 75

α

°

66 68 55 57 56 54

C

h13

mm

32 36 45 58 68 80 100

C1

H13

mm

22.6 24.6 31.2 43.7 51.7 60.3 77.3

C2

mm

1.3 1.6 1.85 2.15 2.65

E 1)

mm

6.5 9 11.5 14 19.5 22.5
1) Minimum size in relation to Ø d.

Life expectancy calculation

Radial clearance

The radial clearance values shown in the table have been determined from statistics and correspond to values expected in practice.

Adjusting radial clearance

The radial clearance of all Linear Bushings can be adjusted. If, for instance, a zero-clearance guideway is needed, the radial clearance of the Linear Bushing must be reduced using the adjusting screw on the housing (see also Linear Sets) until slight resistance occurs when rotating the shaft. Secure the adjusting screw for applications where vibrations are present.

Adjusting preload

For preloading, the aforementioned adjustment is made using an adjustment shaft that is weaker by the degree of preload.

Customer-built housings

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-R067311240-Super LB B, open, 12, with one seal

Lubrication

Directives and standards

Notes