BOSCH REXROTH
R053020810
$21.39 USD
- BOSCH REXROTH
- Material:R053020810
- Model:KU-C8-OFK
Quantity in stock: 0
The Bosch Rexroth BALL TRANSFER UNIT KU-C8-OFK (R053020810) is a high-quality ball transfer unit designed for various general applications where smooth and precise movement of items is required. This particular model features a robust sheet steel housing with all parts galvanized to ensure durability and resistance to corrosion. The balls themselves are made from corrosion-resistant steel, making them suitable for environments where they may be exposed to harsh conditions. The KU-C8-OFK model is an extremely small ball transfer unit that offers versatility in its use, catering to the needs of applications that require compact components. It does not have a felt seal, which makes it preserved and suitable for use at higher temperatures where a felt seal might not be appropriate. Users should note that the maximum operating temperature for this unit ranges from -30°C to +70°C, allowing for operation in a wide range of environmental conditions. This ball transfer unit has been designed without a felt seal specifically so it can handle temperatures above 70°C by using bright metal balls. When operating at such temperatures, it's important to take into account the reduction in load capacity and to use high-temperature lubricant as per the manufacturer's instructions. Any existing lubricant oil may need to be washed out prior to application at elevated temperatures. The static load rating C0 and dynamic load capacity C1 are critical specifications that indicate how much weight the unit can support under both stationary and moving conditions. The outer diameter (D), nominal size, and tolerances are precisely engineered for seamless integration into systems requiring exact specifications. Overall, the Bosch Rexroth BALL TRANSFER UNIT KU-C8-OFK is an essential component for users seeking reliable and efficient material handling solutions within their operations. Its design ensures longevity and performance even in demanding situations where temperature resilience and corrosion resistance are necessary.
Ball transfer units without felt seal – Size 8
Ball transfer unit
All parts galvanized, balls made from corrosion-resistant steel
Size = 8
Without felt seal, preserved
Unpacked Weight: 0.0068 kg
| With sheet steel housing |
| Extremely small ball transfer unit |
| For general applications |
| All parts galvanized |
| Balls made from corrosion-resistant steel 1.3541 / 1.4034 |
| 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 | 200 |
| 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 is to be expected 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 | 100 |
| 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 |
100 | 180 | 370 | 970 | 1900 | 4500 |
|
C0 |
N |
200 | 350 | 700 | 1800 | 3000 | 7000 |
|
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 |