SKF 3311DMA Double-row angular contact ball bearing
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Product Description
SKF 3311DMA double-row angular contact ball bearing. Double-row angular contact ball bearing (32xx-2Z, 33xx, 52xx / 53xx) taking heavy combined radial and axial load in both directions from a single position. Contact angle 30° or 45°. Standard shielded (2Z) or contact-sealed (2RS1) execution. Suitable for pump impeller shafts, gearbox output shafts, propeller-shaft thrust ends on smaller marine gearboxes.
Technical Specifications
- Type
- Double-row angular contact ball bearing
- Designation
- SKF 3311DMA
- Bore d
- 55 mm
- HS code
- 8482.10
- Bore diameter
- 55 mm
- Outside diameter
- 120 mm
- Width
- 49.2 mm
- Contact angle
- 45 °
- Basic dynamic load rating
- 111 kN
- Basic static load rating
- 100 kN
- Reference speed
- 6000 r/min
- Limiting speed
- 5000 r/min
- Contact type
- Normal contact (two-point contact)
- Number of rows
- 2
- Locating feature, bearing outer ring
- Without
- Ring type
- Two-piece inner ring and one-piece outer ring
- Cage
- Machined brass
- Arrangement of contact angle (double-row bearing)
- Back-to-back (O)
- Matched arrangement
- No
- Universal matching bearing
- No
- Axial internal clearance
- CN
- Material, bearing
- Bearing steel
- Coating
- Without
- Sealing
- Without
- Lubricant
- None
- Relubrication feature
- Without
- Indicative carbon footprint for new product
- 10.4 kg CO2e
- Product net weight
- 2.8 kg
- eClass code
- 23-05-08-03
- UNSPSC code
- 31171531
Standards & Compliance
- Standard
- SKF designation convention (see description for governing ISO / DIN)
- Material
- As declared by SKF designation suffix
- Temperature Range
- Per SKF product data
- HS Code
- 8482.10
Cross References
- FAG 3311
- NSK 3311
- NTN 3311
- Timken 3311
- Koyo 3311
- Equivalent: 3311 (FAG)
- Equivalent: 3311 (NSK)
- Equivalent: 3311 (NTN)
- Equivalent: 3311 (Timken)
- Equivalent: 3311 (Koyo)
Compatibility & Fitment
Interchange with peer OEM equivalents on identical boundary plan and execution — confirm cage, clearance, sealing and precision-class suffix before substitution.
Product Documentation
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Technical guides
Catalogue entry last verified: 2026-08-13. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 3311DMA?
- 3311DMA can be ordered from cballast.com as a SKF catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this SKF product?
- The manufacturer part number is 3311DMA.
- What is the HS code for 3311DMA?
- The customs tariff (HS) code for 3311DMA is 8482.10.
- Who manufactures 3311DMA?
- 3311DMA is a SKF product in the Bearings & Power Transmission range.
- Is a datasheet available for 3311DMA?
- Yes — the 3311DMA datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 3311DMA?
- The minimum order quantity is 1.
- Is 3311DMA available?
- Yes — 3311DMA is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).