Bosch Rexroth R065821240
Linear Bushing
KBC-12-DD
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Rexroth R065821240
Compact linear bushing
Shaft diameter d = 12
With two seals
Radial clearance: Standard
Version: Standard
Not lubricated
Low-cost linear bushing for general requirements
Small outer dimensions and highly compact construction
High dynamic load rating and long service life due to hardened segmental load-bearing plates with ball conformity in the running track
High travel speed (5 m/s)
Integrated wiper seals, external seals or no wiper seals
Normal radial clearance
Not greased
Simple mounting: Just press on – no additional retention needed
Many pockets acting as lubricant reservoirs for extended lubrication intervals or lubrication for life
Pockets collect any dirt that may have worked its way in to prevent the linear bushing from jamming.
Integrated metal retainer about 0.1 mm larger than outer diameter (shaft diameters 12 to 50) for secure fit in housing bore
| Shaft diameter d [mm] | 12 |
| Filter for linear bushings and shafts | Linear bushings |
| Linear guide type | Linear bushing and shaft |
| Format of linear bushings | – Closed |
| Series | Compact (C) |
| Maximum dynamic load capacity Cmax [N] | 870 |
| Max. acceleration amax [m/sІ] | 150 |
| Maximum permissible linear speed vmax [m/s] | 5 |
| Length of linear bushing [mm] | 28 |
| Outer diameter D [mm] | 19 |
| Permissible ambient temperature | -10 °C ... +80 °C |
| Friction coefficient ? | 0,001 ... 0,004 |
| Footnote friction coefficient ? | 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. |
| Footnote maximum static load capacity C0max | |
| Permissible ambient temperature (max) [°C] | +80 |
| Permissible ambient temperature (min) [°C] | -10 |
| Friction force FR footnote 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. |
| Radial clearance shaft/bore h6/H7 [µm] | +32,?0 |
| Productgroup ID | 17 |
| Version | Standard |
| Rows of balls | 5 |
| Breakaway force [N] | 1.5 |
| Friction coefficient ? max. | 0.004 |
| Friction force [N] | 0.8 |
| Footnote minimum dynamic load capacity Cmin | The 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. |
| Footnote maximum dynamic load capacity Cmax | The 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. |
| Footnote friction force FR | One wiper seal: Multiply value with factor 0.5 |
| Footnote breakaway force | One wiper seal: Multiply value with factor 0.5 |
| Minimum static load capacity C0min [N] | 420 |
| Maximum static load capacity C0max [N] | 620 |
| Minimum dynamic load capacity Cmin [N] | 730 |
| Footnote minimum static load capacity C0min | |
| Friction coefficient ? min. | 0.001 |
| Weight [kg] | 0.0185 |
| Size D [mm] | 19 |
| Size C [mm] | 28 |
| Size D1 with tolerance |
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