SKF UC311 Insert bearing (YAR / YET / YSA / YEL)
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Product Description
SKF UC311 insert bearing (yar / yet / ysa / yel). Spherical-outer-ring insert ball bearing suited to drop-in mounting in a pillow-block, flanged, take-up or tapped-base housing. Set-screw (YAR), eccentric locking collar (YET), adapter-sleeve (YSA), or grub-screw double-lock (YEL) shaft attachment per suffix. Sealed for life with grease; regreasable variants add a lubrication nipple to the outer ring. Shaft bore diameter 55 mm, encoded by the SKF designation.
Technical Specifications
- Type
- Insert bearing (YAR / YET / YSA / YEL)
- Designation
- SKF UC311
- HS code
- 8482.10
- Shaft bore
- 55 mm
- Shaft diameter
- 55 mm
- Bore diameter
- 55 mm
- Outside diameter
- 120 mm
- Width, total
- 66 mm
- Width, inner ring
- 66 mm
- Width, outer ring
- 32 mm
- Basic dynamic load rating
- 71.5 kN
- Basic static load rating
- 45 kN
- Limiting speed
- 3100 r/min
- Note
- Limiting speed with shaft tolerance h6
- Retaining feature, inner ring
- Set screws
- Bore type
- Cylindrical
- Rolling elements
- Balls
- Outer ring type
- Spherical
- Inner ring extension
- On both sides
- Cage
- Sheet metal
- Rubber seating ring
- Without
- Material, bearing
- Bearing steel
- Coating
- Without
- Sealing
- Seal and flinger on both sides
- Sealing type
- Contact, standard
- Lubricant
- Grease
- Relubrication feature
- With
- Product net weight
- 2.1 kg
- eClass code
- 23-05-16-02
- UNSPSC code
- 31171536
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
- NTN 311
- NSK 311
- FAG 311
- Koyo 311
- ASAHI 311
- Equivalent: 311 (NTN)
- Equivalent: 311 (NSK)
- Equivalent: 311 (FAG)
- Equivalent: 311 (Koyo)
- Equivalent: 311 (ASAHI)
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
- Bearing Unit Finder — by Shaft Diameter: Pillow Block (UCP / SY), Flanged (UCF / UCFL / FY / FYTB), Take-Up (UCT / TU) and Insert Bearings (YAR / YET / UC)
- SKF 81xxx Cylindrical Roller Thrust Bearing — Dimensions, Load Ratings & Interchange (81102 to 81140)
- SKF Deep Groove Ball Bearing Reference — 6000 / 6200 / 6300 / 6400 Series (Dimensions, Load Ratings, Interchange to FAG NSK NTN Timken)
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 UC311?
- UC311 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 UC311.
- What is the HS code for UC311?
- The customs tariff (HS) code for UC311 is 8482.10.
- Who manufactures UC311?
- UC311 is a SKF product in the Bearings & Power Transmission range.
- Is a datasheet available for UC311?
- Yes — the UC311 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for UC311?
- The minimum order quantity is 1.
- Is UC311 available?
- Yes — UC311 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).