Bosch Rexroth R067022040
Super Linear Bushing
KBA-20-DD
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Rexroth R067022040
Super linear bushing
Super A (with self-alignment feature)
Closed
Shaft diameter d = 20
With two seals
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
Compensates for shaft deflection and misalignment up to 30'
High travel speed (5 m/s)
No initial lubrication
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
| Shaft diameter d [mm] | 20 |
| Linear guide type | Linear bushing and shaft |
| Filter for linear bushings and shafts | Linear bushings |
| Format of linear bushings | – Closed |
| Series | Super A (with self-alignment feature) |
| Maximum dynamic load capacity Cmax [N] | 2470 |
| Max. acceleration amax [m/sІ] | 150 |
| Maximum permissible linear speed vmax [m/s] | 3 |
| Note: Maximum permissible speed vmax | 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. |
| Outer diameter D [mm] | 32 |
| Permissible ambient temperature | -10 °C ... +80 °C |
| Friction coefficient ? | 0,001 ... 0,0025 |
| 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 | |
| Radial clearance shaft h6/bore K7 [µm] | +25,-7 |
| Radial clearance shaft/bore h6/H7 [µm] | +43,+11 |
| Permissible ambient temperature (max) [°C] | +80 |
| Rows of balls | 6 |
| 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 h6/bore M7 [µm] | +18,-14 |
| Productgroup ID | 17 |
| Permissible ambient temperature (min) [°C] | -10 |
| Breakaway force [N] | 3 |
| Friction coefficient ? max. | 0.0025 |
| Friction coefficient ? min. | 0.001 |
| Footnote friction force FR | One wiper seal: Multiply value with factor 0.5 |
| Friction force [N] | 1.5 |
| 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 breakaway force | One wiper seal: Multiply value with factor 0.5 |
| Minimum static load capacity C0min [N] | 1050 |
| Maximum static load capacity C0max [N] | 1340 |
| Minimum dynamic load capacity Cmin [N] | 2020 |
| Footnote minimum static load capacity C0min | |
| Weight [kg] | 0.0672 |
| Size D [mm] | 32 |
| Size D1 [mm] | 30.5 |
| Size C h13 [mm] | 45 |
| Size C1 H13 [mm] | 31.2 |
| Size C2 [mm] | 1.6 |
| Size D1 with tolerance | 30.5 mm |
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