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BOSCH REXROTH
R060200830


$150.62 USD
  • BOSCH REXROTH
  • Material:R060200830
  • Model:KBM-8-DD-NR

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 STD.LINEAR BUSHING KBM-8-DD-NR (R060200830) is a high-quality, corrosion-resistant linear bushing designed for harsh environments and heavy contamination. This robust all-metal bushing features a closed design with a shaft diameter of d, suitable for self-supporting shafts, and includes two seals to protect against contaminants. The KBM-8-DD-NR is specifically engineered with many pockets that serve as lubricant reservoirs, allowing for extended lubrication intervals or even lubrication for life. The bushing's balls are made of a stainless steel comparable to the industry standard, ensuring durability and smooth operation. The hardened and machined outer sleeve, ball retainer, and integrated retaining rings are also crafted from stainless steel of similar quality, which makes this bushing ideal for applications in the medical, chemistry, and food industries where stainless steel is often required. Additionally, the Bosch Rexroth linear bushing boasts optional integrated wiper seals to further prevent dirt from entering the system and causing jams. Its design includes multiple rows of balls to accommodate higher loads while maintaining precision movement. With its rugged construction and thoughtful design features like dirt collection pockets and optional wiper seals, this linear bushing excels in demanding conditions such as woodworking shops, foundries, or cement plants. The load capacities and friction coefficients provided indicate the bushing’s efficiency under various operational conditions. The product has been tested for dynamic load capacities over a total travel of 100 km but can be adjusted based on different travel lengths. It operates effectively within an ambient temperature range of -30°C to +80°C without wiper seals or at reduced capacities at higher temperatures. In summary, the Bosch Rexroth STD.LINEAR BUSHING KBM-8-DD-NR (R060200830) offers exceptional performance in extreme environments with its durable construction and advanced sealing options. It's designed not only to withstand tough conditions but also to provide reliable linear motion with minimal maintenance requirements.


Standard LB, closed, 8, with two seals

"Standard linear bushing
Standard (metal)
Closed
Shaft diameter d = 8
With two seals
Design: corrosion-resistant"

Unpacked Weight: 0.0199 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
Optional integrated wiper seals
Stainless steel for the medical, chemistry and food industries
Closed, for self-supporting shafts
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.
Balls made of stainless steel comparable to 1.4125
Hardened and machined outer sleeve made of stainless steel comparable to 1.4125
Ball retainer made of stainless steel comparable to 1.4301
Integrated retaining rings made of stainless steel comparable to 1.4006 or wiper seals
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 H1316.2
Maximum dynamic load capacity Cmax240
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 D16
Breakaway force1
Maximum permissible linear speed vmax2.5
Size D16
Size D115.2
Friction coefficient μ0,001 ... 0,004
Size C h1225
Size C21.1
Friction coefficient μ max.0.004
Friction force0.5
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 C0min235
Maximum static load capacity C0max330
Minimum dynamic load capacity Cmin210
Shaft diameter d8
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
Weight0.0199
Size D1 with tolerance15.2 mm

General technical data

Ø d

mm

3 4 5 8 10 12 16 20 25 30 40

amax

m/s²

100

vmax

m/s

2.5

m

kg

0.001 0.002 0.011 0.022 0.036 0.045 0.06 0.1 0.235 0.36 0.77

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)

Breakaway force

N

- 0.8 1) 1 1) 2 1) 6 1) 9 1) 12 1) 14 1) 18 1) 24 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

Shaft radial clearance h6 4)

µm

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

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

Cmin

N

55 70 160 210 300 400 460 680 780 1250 1720

Cmax

N

65 80 185 240 350 460 530 800 830 1320 1820

C0min

N

45 60 180 235 260 420 440 860 1620 2000 3300

C0max

N

65 85 250 330 370 600 630 1250 2100 2500 4200
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-R060200830-Standard LB, closed, 8, with two seals

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-R060200830-Standard LB, closed, 8, with two seals

Dimensions

Ød

mm

3 4 5 8 10 12 16 20 25 30 40

D

mm

7 8 12 16 19 22 26 32 40 47 62

C

h12

mm

10 12 22 25 29 32 36 45 58 68 80

C1

H13

mm

- 14.2 16.2 21.6 22.6 24.6 31.2 43.7 51.7 60.3

C2

mm

- 1.1 1.3 1.6 1.85 2.15

D1

mm

- 11.5 15.2 18 21 24.9 30.3 37.5 44.5 59

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-R060200830-Standard LB, closed, 8, with two seals

Lubrication

Directives and standards

Notes