Designation
SKF 3309 DMA
Ball bearing 3309 DMA
- Brand
- SKF
- Product group
- Bearings & Accessories
- Product type
- Ball bearings
Double row angular contact ball bearings, with two-piece inner ring, correspond to a pair of single row angular contact ball bearings in a back-to-back arrangement, while requiring less axial space than the equivalent pair of single row angular contact ball bearings. The two-piece inner ring enables incorporation of a larger number of balls, with a larger contact angle, providing a high load carrying capacity, especially in the axial direction.
Benefits
- Accommodate very high axial loads in both directions, radial loads, and tilting moments
- Suitable where a stiff bearing arrangement is required
- Separable design means outer ring with ball and cage assemblies can be mounted independently of the inner ring halves
Technical data
| Dimensions | |
|---|---|
| Bore diameter (mm) | 45 |
| Outside diameter (mm) | 100 |
| Width (mm) | 39.7 |
| Features | |
| Manufacturer code | 3309 DMA |
| Barcode (EAN) | 7316577004154 |
| Basic dynamic load rating (kN) | 79.3 |
| Basic static load rating (kN) | 69.5 |
| Reference speed (r/min) | 7500 |
| Limiting speed (r/min) | 6300 |
| Net weight (kg) | 1.61 |
| Number of rows | 2 |
| Sealing | Without |
| Cage | Machined metal |
| Outer ring locating feature | None |
| Relubrication feature | Without |
| Bearing material | Bearing steel |
| Coating | Without |
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