Open-ended drawn cup needle roller bearings
Open-ended drawn cup needle roller bearings consist of a needle roller and cage assembly that is held in a sleeve made of steel sheet. The sleeve serves as a parallel partner in the housing. These compact roller bearings offer the very highest load ratings in a very small space. Thanks to the sleeve, the housings can be manufactured from materials other than roller bearing steel, such as aluminum, cast iron or high-strength plastics. Because of the thin-walled design of the sleeve, it must be ensured that the housing is sufficiently solid. It is particularly important to note that the number of needles may vary while the dimension stays the same, which allows different load ratings to be achieved. The needle sorting used plays a particularly important role when it comes to precision.
Closed-ended drawn cup needle roller bearings
Closed-ended drawn cup needle roller bearings are closed on one side and serve as a closure for shaft ends. The rotating shaft is protected and sealed against interference.
- Bearing clearance classes C2, CN, C3 and C4
- | Fa - axial load
- | Noise test by decibels
- | Noise test by vibration level for deep groove ball bearings
- | Noise test by vibration level for tapered roller bearings
- | P - dynamic equivalent load
- | PN/P0 tolerance class for radial bearings (without tapered roller bearings)
Technical information
Needle sorting available depending on the performance class:
| Sorting | Description | available in ABEG® performance classes | |||
|---|---|---|---|---|---|
| G2 | Needle diameter deviation from max. 2 µm |  |  | ||
| G3 | Needle diameter deviation from max. 3 µm | | |  | |
| G5 | Needle diameter deviation from max. 5 µm |  | |||
Cage types may vary depending on the size and application type. We carry various cage designs made of steel sheet and plastic.
An essential property of greases and oils is the reliable mechanical separation of the rolling element from the raceway. Depending on the application, you need special types of grease to achieve this function. The following properties in particular affect the function:
- the starting and operating temperature
- the speed of the bearing
- the external ambient conditions (moisture, contamination, vapors/gases...)
We recommend a lithium complex soap grease for needle-roller bearings under normal operating conditions.
Our application engineer would be happy to analyze your application conditions and recommend suitable lubricants.
Contact for applications consulting
Materials for cages
Different materials are used depending on the size and load limit.
| Designation | Material no. | EU standard | USA | Japan | China | |||
|---|---|---|---|---|---|---|---|---|
| DC01 | 1.0330 | EN 10139 | DC01 | GB/T 5213 | SPCC | G3141 | 1008 | GB/A366 |
| DC03 | 1.0347 | EN 10139 | DC03 | GB/T 5213 | SPCD | G3141 | 1006 | GB/A619 |
| DC04 | 1.0338 | EN 10139 | DC04 | GB/T 5213 | SPCE | G3141 | 1006 | GB/A620 |
| 20 | 20 | GB/ T 699 | ||||||
Materials for sleeves
Sleeves in particular are subjected to high mechanical stress.
Different materials are used depending on the size and type of stress:
| Designation | Material no. | EU standard | USA | Japan | China | |||
|---|---|---|---|---|---|---|---|---|
| SAE1010 | ||||||||
| SCM415 | ||||||||
| C15mod | ||||||||
