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BOSCH REXROTH
R053021210


$23.82 USD
  • BOSCH REXROTH
  • Material:R053021210
  • Model:KU-C12-OFK

Quantity in stock: 0

Note: Sales tax, and shipping will be calculated at checkout.
***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 KU-C12-OFK (R053021210) is a high-quality component designed for facilitating smooth and precise movement of goods across various surfaces. This ball transfer unit is particularly compact, falling into the category of extremely small ball transfer units, making it suitable for general applications where space is at a premium. The unit features all galvanized parts with balls made from corrosion-resistant steel, ensuring durability and longevity even in challenging environments. The KU-C12-OFK model does not include a felt seal and comes preserved with a sheet steel housing, which contributes to its robustness. It operates efficiently within a temperature range of -30°C to +70°C, making it versatile for use in different climatic conditions. However, it should be noted that at temperatures above +70°C, only bright metal ball transfer units without a felt seal should be employed. Additionally, users are advised to use high-temperature lubricant and follow the manufacturer's instructions for maintenance, especially if the existing lubricant oil needs to be washed out due to high operating temperatures. The unit's static load rating is specified by Bosch Rexroth standards and users should consider that prolonged use at speeds above 1 m/s may result in increased temperature and reduced service life depending on the load. The maximum permissible linear speed (vmax) is an important consideration in application design to ensure optimal performance. Overall, this Bosch Rexroth ball transfer unit is engineered for efficiency and reliability in material handling tasks. Its compact size combined with the strength of galvanized parts and corrosion-resistant steel balls makes it an excellent choice for facilitating movement within various systems without compromising on quality or performance.


Ball transfer units without felt seal – Size 12

Ball transfer unit
All parts galvanized, balls made from corrosion-resistant steel
Size = 12
Without felt seal, preserved

Unpacked Weight: 0.0177 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
Product informationWithout felt seal
Size a2.1
Maximum operating temperature+100
Size H15.4
Minimum operating temperature-30
Size h7.4
Outer diameter D18
Maximum permissible linear speed vmax2
Operating temperature-30 °C ... +100 °C
Size D18
Size D123.3
Tolerance h±0.15
Static load rating C0350
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 dW12
Productgroup ID17
Size b4.4
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 C180
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.
Weight0.0177
Nominal size12
Tolerance D±0.055

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

technical illustration-R053021210-Ball transfer units without felt seal – Size 12

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
technical illustration-R053021210-Ball transfer units without felt seal – Size 12

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
technical illustration-R053021210-Ball transfer units without felt seal – Size 12
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

Assembling the ball transfer units with tolerance ring

technical illustration-R053021210-Ball transfer units without felt seal – Size 12

Ball Transfer Unit Installation Examples

Directives and standards

Notes