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BOSCH REXROTH
R053212210


$65.33 USD
  • BOSCH REXROTH
  • Material:R053212210
  • Model:KUF-B22-TF-MFG

Quantity in stock: 0

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
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)
Size a13.6
Maximum operating temperature+100
Size H58.1
Minimum operating temperature-30
Size h18.6
Outer diameter D50
Maximum permissible linear speed vmax2
Operating temperature-30 °C ... +100 °C
Size D50
Size D138.8
Tolerance b±0.2
Note: Maximum permissible speed vmaxIn 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 dW22.225
Productgroup ID17
Footnote for ultimate loadUnder 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.
Weight0.289
Nominal size22
Tolerance for preload and ultimate load value 2+25,-7.5
Tolerance D±0.1

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

technical illustration-R053212210-Ball transfer units with felt seal – Size 22

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
technical illustration-R053212210-Ball transfer units with felt seal – Size 22

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
technical illustration-R053212210-Ball transfer units with felt seal – Size 22
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

Assembling the ball transfer units with tolerance ring

technical illustration-R053212210-Ball transfer units with felt seal – Size 22

Ball Transfer Unit Installation Examples

Directives and standards

Notes