BOSCH REXROTH
R053212210
$65.33 USD
- BOSCH REXROTH
- Material:R053212210
- Model:KUF-B22-TF-MFG
Quantity in stock: 0
The Bosch Rexroth BALL TRANSFER UNIT KUF-B22-TF-MFG (R053212210) is a high-quality ball transfer unit designed for various material handling applications. This unit features a galvanized cover and housing, with balls made from antifriction bearing steel, ensuring durability and smooth operation. The size of the ball transfer unit is complemented by its spring-loaded design, which allows the ball to recede into the housing under high loads to accommodate uneven surfaces or temporary overloads. This Bosch Rexroth model includes a felt seal that provides lubrication and protection against contaminants, making it suitable for environments where cleanliness is paramount. The unit's cup spring mechanism enhances its load-bearing capabilities and ensures stable movement of goods across the transfer system. With an outer diameter (D) specification and a maximum operating temperature range, this ball transfer unit can handle various industrial applications within its thermal limits. For operations that exceed these temperature ranges, Bosch Rexroth recommends using bright metal ball transfer units without a felt seal and applying high-temperature lubricant to maintain performance. The product's nominal size and tolerances for preload and ultimate load value are precisely engineered to meet rigorous standards. This ensures consistent performance even under extreme conditions. The weight of the unit is calibrated to support efficient handling while maintaining robustness. In summary, the Bosch Rexroth BALL TRANSFER UNIT KUF-B22-TF-MFG (R053212210) is an advanced solution for facilitating multi-directional movement in material handling systems. Its spring-loaded design, felt seal lubrication, and precise engineering make it an ideal choice for applications requiring reliable and smooth transport of goods within specified temperature ranges.
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
Cup spring
With felt seal, lubricated
Unpacked Weight: 0.289 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 is to be expected 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 | 0.289 |
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 platformsDimensions
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 |