BOSCH REXROTH
R053010810
$11.68 USD
- BOSCH REXROTH
- Material:R053010810
Quantity in stock: 1
The Bosch Rexroth BALL TRANSFER UNIT KU-B8-OFK (R053010810) is a highly efficient component designed for facilitating smooth and precise movements in various applications. This ball transfer unit features a galvanized cover and housing, ensuring durability and resistance to corrosion, while the balls are constructed from high-quality antifriction bearing steel, providing reliable operation under dynamic conditions. With its extremely small size, this unit is particularly suitable for general applications where space is at a premium. The KU-B8-OFK is characterized by its lack of a felt seal and is preserved with a sheet steel housing that contributes to its compact design. It can operate within a temperature range of -30°C to +70°C, making it versatile for various environments. However, it's important to note that at temperatures above 70°C, only bright metal ball transfer units without a felt seal should be used, and users must consider the reduction in load capacity. Additionally, the use of high-temperature lubricant is recommended following the manufacturer's instructions. This unit boasts an impressive static load rating and dynamic load capacity, although specific values are not provided here. When operating at speeds above 1 m/s, users should anticipate an increase in temperature and potential reduction in service life depending on the load. The outer diameter D and size H specifications ensure compatibility with numerous systems. Weighing only 0.1 kg with a nominal size conducive to its application range, the Bosch Rexroth BALL TRANSFER UNIT KU-B8-OFK (R053010810) is an essential component for systems requiring precise movement control with minimal space requirements. Its robust construction and material choice make it a reliable choice for facilitating multidirectional motion across various platforms.
Ball transfer units without felt seal – Size 8
Ball transfer unit
Galvanized cover and housing, balls made from anti-friction bearing steel
Size = 8
Without felt seal, preserved
Unpacked Weight: 0.0068 kg
| With sheet steel housing |
| Extremely small ball transfer unit |
| For general applications |
| Cover and housing galvanized |
| Balls made from antifriction bearing steel 1.3505 |
| Data Sheet | Download Data Sheet |
| 2D CAD | Download 2D CAD |
| 2D CAD | Download 2D CAD |
| 3D CAD | Download 3D CAD |
| 3D CAD | Download 3D CAD |
| Product information | Without felt seal |
| Size a | 1.9 |
| Maximum operating temperature | |
| Size H | 11.2 |
| Minimum operating temperature | |
| Size h | 4.8 |
| Outer diameter D | 12.6 |
| Maximum permissible linear speed vmax | 2 |
| Operating temperature | -30 °C ... +100 °C |
| Size D | 12.6 |
| Size D1 | 17 |
| Tolerance h | |
| Static load rating C0 | 250 |
| Note: Maximum permissible speed vmax | In case of prolonged periods of use at speeds above 1 m/s, an increase in temperature and reduction in service life needs to be reckoned with depending on the load. |
| Size dW | 7.938 |
| Productgroup ID | 17 |
| Size b | 3.2 |
| Footnote permissible operating temperature (min...max) | At temperatures above 100 °C, only bright metal ball transfer units without a felt seal should be used. Make allowance for reduction in load capacity. Use high-temperature lubricant! Follow the manufacturer’s instructions! The existing lubricant oil may have to be washed out. |
| Dynamic load capacity C | 130 |
| Footnote operating temperature max. | For temperatures over 100°C, only load balls made from bare metal without a felt seal may be used. Take into account the reduction in load capacity. Use high-temperature lubricant! Follow the instructions of the manufacturer! The existing lubricant oil may have to be washed out. |
| Weight | 0.0068 |
| Nominal size | 8 |
| Tolerance D |
Technical data
|
Size |
8 | 12 | 15 | 22 | 30 | 45 | |
|
C |
N |
130 | 250 | 500 | 1300 | 2500 | 6000 |
|
C0 |
N |
250 | 500 | 1000 | 2500 | 5000 | 12000 |
|
vmax 1) |
m/s |
2 | |||||
|
m |
kg |
0.007 | 0.018 | 0.038 | 0.132 | 0.265 | 0.72 |
|
Operating conditions |
|||||||
|
Size |
8 | 12 | 15 | 22 | 30 | 45 | |
|
Admissible operating temperature (min ... max) 2) |
-30 °C ... +100 °C | ||||||
| 1) | In case of prolonged periods of use at speeds above 1 m/s, an increase in temperature and reduction in service life needs to be reckoned with depending on the load. |
| 2) | At temperatures above 100 °C, only bright metal load balls without a felt seal should be used. Make allowance for reduction in load capacity. Use high-temperature lubricant! Follow the manufacturer’s instructions! The existing lubricant oil may have to be washed out. |
At temperatures above 100 °C, only bright metal ball transfer units without a felt seal should be used. Note the reduction in load capacity! Use high-temperature lubricant! Follow the manufacturer’s instructions! The existing lubricant oil may have to be washed out.
Temperature factor
|
Temperature (°C) |
Temperature factor ft |
|
125 |
0,9 |
|
150 |
0,8 |
|
175 |
0,7 |
|
200 |
0,5 |
The load capacity must be multiplied by the temperature factor.
Legend
|
Symbol |
Description |
Unit |
Picture |
|
C |
Dynamic load capacity |
N |
|
|
C0 |
Static load capacity |
N |
|
|
vmax |
Conveying speed |
m/s |
|
|
m |
Mass |
kg |
Technical data
Applications
General-purpose machines Feed tables for sheet-metal working machines Fixtures for press brakes Feed devices for machining centers Drilling tables and motor-driven supporting tables Assembly aids in the manufacture of large engines and motors Construction of special-purpose machines Aerospace industry Beverages and stone-processing industries Not suitable for use under water
Conveyor systems
Ball transfer tables, turntables and switches for sorting and distribution systems Crossover sections of continuous conveyors Baggage sorting systems at airports Transport of steel tubes and pipes Lifting platforms
Dimensions
|
Size |
dw |
D |
Tolerance for D |
D1 |
h |
Tolerance for h |
H |
a |
b |
|
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
|
| 8 | 7.938 | 12.6 | ± 0.055 | 17 | 4.8 | ± 0.15 | 11.2 | 1.9 | 3.2 |
| 12 | 12 | 18 | 23.3 | 7.4 | 15.4 | 2.1 | 4.4 | ||
| 15 | 15.875 | 24 | ± 0.065 | 31 | 9.5 | ± 0.2 | 21.5 | 2.5 | 6.1 |
| 22 | 22.225 | 36 | ± 0.08 | 45 | 9.8 | 29.5 | 2.9 | 5.7 | |
| 30 | 30.162 | 45 | 55 | 13.8 | ± 0.3 | 37.5 | 3.7 | 7.9 | |
| 45 | 44.45 | 62 | ± 0.095 | 75 | 19 | ± 0.4 | 53.7 | 4.2 | 10.5 |
| 1) | Press fit |
| 2) | with tolerance ring |
| 3) | Gluing in |
Installation dimensions
|
Size |
Press fit |
with tolerance ring |
Gluing in |
||||||||||
|
2 mm sheet steel 5 Mm aluminum |
16 mm wood |
Part number |
D2 |
Tolerance for D2 |
DE |
Tolerance for DE |
c |
Tolerance for c |
DE |
Tolerance for DE |
|||
|
DE |
Tolerance for DE |
DE |
Tolerance for DE |
Tolerance ring |
|||||||||
|
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
||
| 8 | 12.57 | + 0.03 | 12.5 | + 0.05 | R081001252 1) | 12.8 | + 0.2 | 13.87 | + 0.15 | 6.1 | + 0.2 | 12.7 | + 0.2 |
| 12 | 17.97 | + 0.03 | 17.9 | + 0.05 | R081001801 2) | 18.2 | 19.7 | + 0.2 | 18.1 | ||||
| 15 | 23.95 | + 0.05 | 23.9 | + 0.05 | R081002403 2) | 24.2 | 25.7 | 7.1 | 24.1 | ||||
| + 0.05 | + 0.05 | ||||||||||||
| 22 | 35.9 | + 0.05 | 35.85 | + 0.07 | R081003605 2) | 36.2 | 37.7 | 12.1 | 36.1 | ||||
| + 0.05 | + 0.07 | ||||||||||||
| 30 | 44.85 | + 0.05 | 44.8 | + 0.1 |
R081004501 3) R081004551 3) |
45.2 | 46.7 | 45.1 | |||||
| + 0.05 | + 0.1 | ||||||||||||
| 45 | 61.83 | + 0.07 | 61.8 | + 0.1 | R081006203 2) | 62.3 | 64.1 | + 0.3 | 15.1 | 62.2 | |||
| + 0.07 | + 0.1 | ||||||||||||
| 1) | made of corrosion-resistant steel 1.4310 |
| 2) | made from spring strip 1.1248, alternatively 1.8159 |
| 3) | R081004501 made from spring strip 1.1248, alternatively 1.8159; R081004551 made from corrosion-resistant steel 1.4310 |
