3309 DMA

SKU3309 DMA
Product TypeDouble Row Angular Contact Ball
BrandSKF
Inside Diameter (I.D)45mm
Outside Diameter (O.D)100mm
Width (W)39.7mm
3309DMA SKF
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.

Additional specs

  • Basic dynamic load rating: 79.3kN
  • Basic static load rating: 69.5kN
  • Limiting speed: 6300r/min
  • Reference speed: 7500r/min
  • Number of rows: 2
  • Ring type: Two-piece inner ring and one-piece outer ring
  • Contact type: Normal contact (two-point contact)
  • Arrangement of contact angle (double-row bearing): Back-to-back (O)
  • Cage: Machined metal
  • Axial internal clearance: CN
  • Matched arrangement: No
  • Universal matching bearing: No
  • Material, bearing: Bearing steel
  • Coating: Without
  • Sealing: Without
  • Lubricant: None
  • Relubrication feature: Without
  • Locating feature, bearing outer ring: None
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