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BOSCH REXROTH
R053020810


$21.39 USD
  • BOSCH REXROTH
  • Material:R053020810
  • Model:KU-C8-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-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
Product informationWithout felt seal
Size a1.9
Maximum operating temperature+100
Size H11.2
Minimum operating temperature-30
Size h4.8
Outer diameter D12.6
Maximum permissible linear speed vmax2
Operating temperature-30 °C ... +100 °C
Size D12.6
Size D117
Tolerance h±0.15
Static load rating C0200
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 dW7.938
Productgroup ID17
Size b3.2
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 C100
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.
Weight0.0068
Nominal size8
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-R053020810-Ball transfer units without felt seal – Size 8

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-R053020810-Ball transfer units without felt seal – Size 8

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-R053020810-Ball transfer units without felt seal – Size 8
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-R053020810-Ball transfer units without felt seal – Size 8

Ball Transfer Unit Installation Examples

Directives and standards

Notes