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BOSCH REXROTH
R061102510


$125.64 USD
  • BOSCH REXROTH
  • Material:R061102510
  • Model:KBM-E-25-D

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 STD.LINEAR BUSHING KBM-E-25-D (R061102510) is a high-quality standard linear bushing designed for precision linear movement applications. This robust component features an adjustable radial clearance, accommodating a shaft diameter of 25mm, and comes equipped with a single seal to protect against contaminants. The bushing's all-metal design, including a steel ball retainer, ensures durability in harsh environments, such as those found in woodworking, foundries, and cement plants. Its construction includes many pockets that act as lubricant reservoirs which can extend lubrication intervals or even allow for lubrication for life. This feature also helps collect dirt and prevent jamming of the bushing. The KBM-E-25-D is designed without wiper seals but includes integrated steel retaining rings that allow it to operate at higher temperatures when used with shaft diameters of 25mm and above. The outer sleeve is hardened and ground for additional strength, while the steel ball retainer can accommodate plastic retainers made of PA for certain shaft diameters. The balls themselves are made from rolling bearing steel which provides smooth motion through multiple rows of balls within the Series Standard metal structure. This linear bushing boasts impressive specifications such as a maximum dynamic load capacity (Cmax), breakaway force requirements, and maximum permissible linear speed (vmax). It also has defined friction coefficients under various load conditions. The permissible ambient temperature range for this bushing is from -30°C to +80°C, ensuring reliable operation across diverse environments. Weighing in at 0.31 kg, the STD.LINEAR BUSHING KBM-E-25-D offers a balance between performance and weight, making it suitable for applications where both factors are critical. Its design allows it to withstand significant static and dynamic loads while maintaining precise movement control. This product is part of Bosch Rexroth's Linear Bushings and Shafts product group ID E_Standard metal_Adjustable_Linear bushing type with an emphasis on reliability in demanding conditions.


Standard LB, adjustable, 25, with one seal

"standard linear bushing
Standard (metal)
Adjustable
Shaft diameter d = 25
With one seal
Version: Standard"

Unpacked Weight: 0.183 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
Seal-free and with steel ball retainers for temperatures well above 80°C or under vacuum
Radial clearance adjustable
Integrated wiper seals for high contamination
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
Steel ball retainer (shaft diameters 5 and 8 with plastic retainer made of PA)
Balls made of rolling bearing steel
Rows of balls5
SeriesStandard (metal)
Footnote friction force FROne wiper seal: Multiply value with factor 0.5
Size C1 H1343.7
Maximum dynamic load capacity Cmax2480
Footnote permissible ambient temperature (min ... max)Only unsealed linear bushings with steel ball retainers may be used at higher temperatures. 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
Size E2
Outer diameter D40
Breakaway force14
Maximum permissible linear speed vmax2.5
Size D40
Size D138.5
Friction coefficient μ0,001 ... 0,004
Size C h1258
Size C21.85
Friction coefficient μ max.0.004
Friction force5
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 C0min1560
Maximum static load capacity C0max2280
Minimum dynamic load capacity Cmin2080
Shaft diameter d25
Linear guide typeLinear bushing and shaft
Filter for linear bushings and shaftsLinear bushings
Format of linear bushingsE – Adjustable
Footnote minimum static load capacity C0min
Footnote maximum static load capacity C0max
Weight0.183
Size D1 with tolerance38.5 mm
Radial clearance shaft h6/bore K7+32,-1
Radial clearance shaft/bore h6/H7+50,+17

General technical data

Ø d

mm

5 8 12 16 20 25 30 40 50 60 80

amax

m/s²

100 50

vmax

m/s

2.5 2

m

kg

0.01 0.02 0.04 0.05 0.1 0.19 0.32 0.62 1.14 2.11 4.7

FR 1) 2)

N

0.4 0.5 2 3 4 5 6 8 10 12 15

Breakaway force 1)

N

0.8 1 6 9 12 14 18 24 30 36 45

μ 3)

0.001 ... 0.004

Rows of balls

4 5 6

Shaft radial clearance h6/bore H7

µm

+ 34
+ 11
+ 36
+ 13
+ 41
+ 14
+ 43
+ 14
+ 49
+ 16
+ 50
+ 17
+ 60
+ 20
+ 68
+ 22
+ 71
+ 24

Shaft radial clearance h6/bore K7

µm

+ 22
- 1
+ 24
- 1
+ 26
- 1
+ 28
- 1
+ 31
- 2
+ 32
- 1
+ 39
- 1
+ 43
- 1
+ 46
- 1

Operating conditions

Permissible ambient temperature (min ... max) 4)

-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) 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

5 8 12 16 20 25 30 40 50 60 80

Cmin

N

180 320 420 580 1170 2080 2820 5170 8260 11500 21000

Cmax

N

210 370 480 670 1390 2480 2980 5480 8740 12100 22200

C0min

N

140 240 280 440 860 1560 2230 3810 6470 9160 16300

C0max

N

200 330 400 620 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-R061102510-Standard LB, adjustable, 25, with one 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-R061102510-Standard LB, adjustable, 25, with one seal

Dimensions

Ød

mm

5 8 12 16 20 25 30 40 50 60 80

D

mm

12 16 22 26 32 40 47 62 75 90 120

C

h12

mm

22 25 32 36 45 58 68 80 100 125 165

C1

H13

mm

14.2 16.2 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 20.5 24.9 30.5 38.5 44.5 58 71 85 114

E

mm

1.5 2

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-R061102510-Standard LB, adjustable, 25, with one seal

Lubrication

Directives and standards

Notes