SKF HA311 — Adapter sleeve
SKF · Bearings & Power Transmission · Adapter Sleeves
SKF HA311 adapter sleeve. Tapered sleeve fitting between a straight shaft and a tapered-bore bearing (spherical roller, self-aligning ball, CARB toroidal roller). Combined with a lock nut and locking device, provides tight fit and correct radial internal clearance without shaft shoulders. Standard designation prefix H (metric H2xxx / H3xxx / H30xx / H31xx / H32xx / HE3xx). Dimensioned to ISO 113. Designation follows the SKF alphanumeric identification convention where the numeric block encodes the boundary plan and the suffix declares execution options (material, sealing, cage, precision, clearance, lubricant). Genuine SKF supply carries the SKF logo etch or moulded mark and hologram-authenticated packaging.
Specifications
- Part number
- HA311
- HS code
- 8483.30
- Material
- As declared by SKF designation suffix
- Temperature range
- Per SKF product data
- Standard
- SKF designation convention (see description for governing ISO / DIN)
Compatibility
Interchange with peer OEM equivalents on identical boundary plan and execution — confirm cage, clearance, sealing and precision-class suffix before substitution.
Also known as — OEM cross-references & superseded numbers
- FAG 311
- NSK 311
- Timken 311
- NTN 311
- Koyo 311
- Competitor equivalent: 311 (FAG)
- Competitor equivalent: 311 (NSK)
- Competitor equivalent: 311 (Timken)
- Competitor equivalent: 311 (NTN)
- Competitor equivalent: 311 (Koyo)
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