BOSCH REXROTH
R053212310
$69.49 USD
- BOSCH REXROTH
- Material:R053212310
- Model:KUF-B22-SF-MFG
Quantity in stock: 0
The Bosch Rexroth BALL TRANSFER UNIT KUF-B22-SF-MFG (R053212310) is designed to facilitate the smooth and precise movement of heavy loads in various material handling applications. This ball transfer unit is spring-loaded, allowing it to retract under high loads, ensuring stability and protection from overloading. The unit features a galvanized cover and housing, enhancing its durability and resistance to corrosion. The balls are crafted from high-quality antifriction bearing steel, offering excellent wear resistance and promoting a long service life. With its helical spring mechanism and felt seal, the KUF-B22-SF-MFG is pre-lubricated to reduce maintenance requirements. It operates within a temperature range of -30°C to +70°C. However, it is important to note that for temperatures above 70°C, units without a felt seal should be used along with high-temperature lubricant following the manufacturer's instructions. Additionally, at linear speeds exceeding 0.5 m/s, users should anticipate an increase in temperature that may affect the unit's service life depending on the applied load. This model comes with either cup springs (TF) or washer key (SF), providing flexibility for different mounting configurations. With an outer diameter (D) specification and nominal size tolerance for preload and ultimate load value clearly defined by the manufacturer, this ball transfer unit ensures reliable performance under specified conditions. Weighing in at 0.4 kg with a nominal size of 22 mm, the Bosch Rexroth BALL TRANSFER UNIT KUF-B22-SF-MFG is engineered for efficient load distribution while offering ease of installation and operation in systems requiring multidirectional movement capabilities.
Ball transfer units with felt seal – Size 22
Spring-loaded ball transfer unit
Galvanized cover and housing, balls made from anti-friction bearing steel
Size = 22
Helical spring
With felt seal, lubricated
Unpacked Weight: 0.243 kg
| Spring-loaded |
| Ball transfer units are supported on springs and mounted under preload in a housing |
| Ball transfer unit recedes into its housing under high loads |
| Cover and housing galvanized |
| Balls made from antifriction bearing steel 1.3505 |
| With cup springs (TF) or washer key (SF) |
| 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 |
| Size a | 13.6 |
| Maximum operating temperature | |
| Size H | 58.1 |
| Minimum operating temperature | |
| Size h | 18.6 |
| Outer diameter D | 50 |
| Maximum permissible linear speed vmax | 2 |
| Operating temperature | -30 °C ... +100 °C |
| Size D | 50 |
| Size D1 | 38.8 |
| Tolerance b | |
| 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 | 22.225 |
| Productgroup ID | 17 |
| Footnote for ultimate load | Under ultimate load the ball transfer unit recedes completely |
| 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. |
| 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 | 0.243 |
| Nominal size | 22 |
| Tolerance for preload and ultimate load value 2 | |
| Tolerance D |
Technical data
|
Size |
22 | 30 | 45 | 22 | ||
|
Fpr |
N |
730 | 1350 | 2280 | 170 | 116.6 |
|
Ultimate load 1) |
N |
860 | 1600 | 2770 | 250 | 195 |
|
Tolerance for preload and ultimate load |
% |
+ 25 - 7.5 |
+ 15 - 7.5 |
+ 27.1 - 27.1 |
||
|
vmax 2) |
m/s |
2 | ||||
|
m |
kg |
0.3 | 0.57 | 1.6 | 0.24 | |
|
Operating conditions |
||||||
|
Size |
22 | 30 | 45 | 22 | ||
|
Admissible operating temperature (min ... max) 3) |
-30 °C ... +100 °C | |||||
| 1) | Under ultimate load the ball transfer unit recedes completely |
| 2) | 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. |
| 3) | 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 |
|
Fpr |
Preload force |
N |
|
|
Ultimate load |
N |
||
|
Tolerance for preload and ultimate load |
% |
||
|
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 |
H |
a |
|
mm |
mm |
mm |
mm |
mm |
mm |
mm |
|
| 22 | 22.225 | 50 | ± 0.1 | 38.8 | 18.6 | 58.1 | 13.6 |
| 30 | 30.162 | 62 | ± 0.125 | 48.2 | 24.4 | 70 | 17 |
| 45 | 44.45 | 85 | ± 0.15 | 66.2 | 35.6 | 100.5 | 24.2 |
| 22 | 22.225 | 50 | ± 0.1 | 38.8 | 18.6 | 58.1 | 13.6 |
| 1) | Press fit in steel |
| 2) | with tolerance ring |
| 3) | Gluing in |
Installation dimensions
|
Size |
Press fit |
with tolerance ring |
Gluing in |
||||||||||||||||
|
2 mm sheet steel 5 Mm aluminum |
Part number 1) |
D2 |
Tolerance for D2 |
DE |
Tolerance for DE |
b |
Tolerance for b |
c |
Tolerance for c |
DE |
Tolerance for DE |
D2 |
Tolerance for D2 |
b |
Tolerance for b |
c |
Tolerance for c |
||
|
DE |
Tolerance for DE |
Tolerance ring |
|||||||||||||||||
|
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
||
| 22 | 49.9 | + 0.05 | R081005008 | 52.5 | + 0.5 | 52.1 | + 0.2 | 13.6 | ± 0.2 | 11.1 | + 0.2 | 50.2 | + 0.2 | 50.4 | + 0.5 | 13.6 | ± 0.2 | 7 | + 1 |
| 30 | 61.85 | + 0.05 | R081006203 | 64.5 | 64.1 | + 0.3 | 17 | 15.1 | 62.2 | 62.4 | 17 | 10 | |||||||
| 45 | 84.83 | + 0.07 | R081008501 | 88 | 87.55 | 24.2 | 19.1 | 85.2 | 85.4 | 24.2 | 13 | ||||||||
| 22 | 49.9 | + 0.05 | R081005008 | 52.5 | 52.1 | + 0.2 | 13.6 | 11.1 | 50.2 | 50.4 | 13.6 | 7 | |||||||
| + 0.05 | |||||||||||||||||||
| 1) | made from spring strip 1.1248, alternatively 1.8159 |
