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BOSCH REXROTH
R060001200

$63.80
  • BOSCH REXROTH
  • Material:R060001200
  • Model:KBM-12

Quantity in stock: 0

***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 STD.LINEAR BUSHING KBM-12 (R060001200) is a high-quality standard linear bushing designed for robust applications where durability and reliability are paramount. This closed-type linear bushing, crafted from standard metal, is engineered without seals, featuring a rugged all-metal design with a steel ball retainer that makes it particularly suitable for harsh environments and heavy contamination. Its construction includes many pockets that act as lubricant reservoirs, facilitating extended lubrication intervals or even enabling lubrication for life. The KBM-12 model is equipped with balls made of rolling bearing steel and comes with integrated steel retaining rings. The absence of wiper seals allows for operation at higher temperatures, particularly with shaft diameters of 20 mm and above. The hardened and ground outer sleeve ensures the bushing's longevity and consistent performance. With its multiple rows of balls, the KBM-12 provides smooth motion while its pockets serve to collect dirt and prevent jamming of the linear bushing. This linear bushing has been specifically designed for use in challenging conditions such as woodworking, foundries, and cement plants. The design allows for maximum dynamic load capacity while maintaining a low friction coefficient between 0.01 to 0.25, ensuring efficient operation under various loads. It also boasts an impressive permissible ambient temperature range from -30°C up to +80°C without seals. In terms of technical specifications, the Bosch Rexroth STD.LINEAR BUSHING KBM-12 offers a dynamic load capacity based on total travel distance, with specific multipliers provided for different travel lengths in the detailed specifications. It also specifies breakaway force requirements and maximum permissible linear speed. Overall, this product is characterized by its durable construction, capability to withstand extreme conditions without compromising performance, and suitability for applications that demand high reliability in material handling or motion control tasks within industrial settings. The product weighs approximately 0.1 kg which adds to its ease of installation without significantly increasing system weight.


Standard LB, closed, 12, without seal

Standard linear bushing
Standard (metal)
Closed
Shaft diameter d = 12
Without seal
Version: Standard

Unpacked Weight: 0.0389 kg
Rugged all-metal design with steel ball retainer for harsh environments and heavy contamination
Many pockets acting as lubricant reservoirs for extended lubrication intervals or lubrication for life
Steel ball retainer (shaft diameters 3, 4 and 10 with plastic strip made of POM and shaft diameters 5 and 8 made of PA)
Closed, for self-supporting shafts
Balls made of rolling bearing steel
For use in woodworking, foundries, cement plants
Pockets collect any dirt that may have worked its way in to prevent the linear bushing from jamming.
No wiper seals, come with integrated steel retaining rings; higher temperatures allowed with shaft diameters 12 and higher
Hardened and ground outer sleeve
Rows of balls4
Footnote shaft radial clearance h6Determined from working bore diameter and shaft tolerance statistics. Recommended housing bore tolerance: H6 or H7.
SeriesStandard (metal)
Footnote friction force FROne wiper seal: Multiply value with factor 0.5
Size C1 H1322.6
Maximum dynamic load capacity Cmax480
Footnote permissible ambient temperature (min ... max)Higher temperatures are only admissible at linear bushings without wiper seals with ball retainers made of steel. Make allowance for reductions in load capacity.
Max. acceleration amax100
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
Outer diameter D22
Breakaway force6
Maximum permissible linear speed vmax2.5
Size D22
Size D120.5
Friction coefficient μ0,001 ... 0,004
Size C h1232
Size C21.3
Friction coefficient μ max.0.004
Friction force2
Footnote minimum dynamic load capacity CminThe dynamic load capacities are based on a total travel of 100,000 m. When based on 50,000 m, the C values in the table are to be multiplied by 1.26.
Friction coefficient μ min.0.001
Footnote maximum dynamic load capacity CmaxThe dynamic load capacities are based on a total travel of 100,000 m. When based on 50,000 m, the C values in the table are to be multiplied by 1.26.
Productgroup ID17
Permissible ambient temperature (max)+80
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
Minimum static load capacity C0min280
Maximum static load capacity C0max400
Minimum dynamic load capacity Cmin420
Shaft diameter d12
Linear guide typeLinear bushing and shaft
Filter for linear bushings and shaftsLinear bushings
Format of linear bushings– Closed
Footnote minimum static load capacity C0min
Footnote maximum static load capacity C0max
Weight0.0389
Size D1 with tolerance20.5 mm

General technical data

Ø d

mm

3 4 5 8 10 12 16 20 25 30 40 50 60 80

amax

m/s²

100 50

vmax

m/s

2.5 2

m

kg

0.001 0.002 0.01 0.02 0.03 0.04 0.05 0.1 0.19 0.32 0.62 1.14 2.11 4.7

FR

N

- 0.4 1) 2) 0.5 1) 2) 1 1) 2) 2 1) 2) 3 1) 2) 4 1) 2) 5 1) 2) 6 1) 2) 8 1) 2) 10 1) 2) 12 1) 2) 15 1) 2)

Breakaway force

N

- 0.8 1) 1 1) 2 1) 6 1) 9 1) 12 1) 14 1) 18 1) 24 1) 30 1) 36 1) 45 1)

μ 3)

0.001 ... 0.004

Rows of balls

4 5 6

Working bore diameter tolerance

µm

+ 8
0
+ 11
+ 1
+ 12
+ 2
+ 8
0
+ 12
+ 2
+ 14
+ 2
+ 16
+ 2
+ 19
+ 2
+ 24
+ 2

Shaft radial clearance h6 4)

µm

+ 12
+ 2
+ 14
+ 2
+ 16
+ 4
+ 18
+ 5
+ 20
+ 5
+ 22
+ 5
+ 23
+ 6
+ 25
+ 6
+ 30
+ 7
+ 33
+ 7
+ 37
+ 8

Operating conditions

Permissible ambient temperature (min ... max) 5)

-10 °C ... +80 °C
1) One wiper seal: Multiply by a factor of 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.
3) 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.
4) Determined from working bore diameter and shaft tolerance statistics. Recommended housing bore tolerance: H6 or H7.
5) Only unsealed Linear Bushings with steel ball retainers may be used at higher temperatures. Make allowance for reductions in load capacity.

Load capacities and load moments

Ød

mm

3 4 5 8 10 12 16 20 25 30 40 50 60 80

Cmin

N

55 70 180 320 300 420 580 1170 2080 2820 5170 8260 11500 21000

Cmax

N

65 80 210 370 350 480 670 1390 2480 2980 5480 8740 12100 22200

C0min

N

45 60 140 240 260 280 440 860 1560 2230 3810 6470 9160 16300

C0max

N

65 85 200 330 370 400 620 1250 2280 2860 4880 8280 11730 20850
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

Cmax

Maximum dynamic load rating

N

Cmin

Minimum dynamic load rating

N

C0max

Maximum static load rating

N

C0min

Minimum static load rating

N

FR

Friction force

N

m

Mass

kg

vmax

Maximum permissible speed

m/s

μ

Friction coefficient

Impact of load direction on load rating of closed Linear Bushings

The listed load ratings should be chosen depending on installation in minimum or maximum position and should be based on the calculations. If the load direction is clearly defined and the Linear Bushings can be installed in maximum position, the load ratings Cmax. (dynamic load rating) and C0 max (static load rating) can be used. If aligned installation is not possible or the load direction is not defined, the minimum load ratings must be used.

 

technical illustration-R060001200-Standard LB, closed, 12, without seal

Definition of dynamic load ratings

Installation dimensions/interchangeability

Standard Linear Bushings have the same installation dimensions as super Linear Bushings. They are interchangeable, differ however in terms of securing, radial clearance, load ratings and lubrication.

Sealing

Standard Linear Bushings come with a wiper seal with shaft diameters of 5 and higher. Open standard Linear Bushings with shaft diameters 20 to 80 can also come fully sealed (with longitudinal seal; increased friction).

technical illustration-R060001200-Standard LB, closed, 12, without seal

Dimensions

Ød

mm

3 4 5 8 10 12 16 20 25 30 40 50 60 80

D

mm

7 8 12 16 19 22 26 32 40 47 62 75 90 120

C

h12

mm

10 12 22 25 29 32 36 45 58 68 80 100 125 165

C1

H13

mm

- 14.2 16.2 21.6 22.6 24.6 31.2 43.7 51.7 60.3 77.3 101.3 133.3

C2

mm

- 1.1 1.3 1.6 1.85 2.15 2.65 3.15 4.15

D1

mm

- 11.1 14.7 18 20.5 24.9 30.5 38.5 44.5 58 71 85 114

Life expectancy calculation

General mounting instructions

Customer-built housings

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-R060001200-Standard LB, closed, 12, without seal

Lubrication

Directives and standards

Notes