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Description
- 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
Features
- With cup springs (TF) or washer key (SF)
Technical data
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
Fields of application
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
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 | 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 |
Mounting
Assembling the ball transfer units with tolerance ring
Ball Transfer Unit Installation Examples
Certification
Directives and standards
Safety Instructions
Notes
Ordering codes
Ordering code
| Size | Part number | Short product name | CAD data | Buy |
| 22 | R053212210 | KUF-B22-TF-MFG | ||
| 30 | R053213010 | KUF-B30-TF-MFG | ||
| 45 | R053214510 | KUF-B45-TF-MFG | ||
| 22 | R053212310 | KUF-B22-SF-MFG | ||
| R053212510 |
Explanatory example of the short product name
| KUF-B45-TF-MFG (R053214510) | ||||
| KUF | B | 45 | TF | MFG |
| Balltransfer unit with sspring element | Galvanized cover and housing, balls made from antifriction bearing steel | Size | Cupspring | With felt seal Oiled |
Downloads
 | Ball Transfer Units Catalog | R999000498 | 2016-07-01 | English | PDF | 4.8MB Product Groups: Ball transfer units and tolerance rings |
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