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55 × 120 × 31.5 mm bearing

30311 · 31311 — 8 products, 7 brands

4 products in size 55 × 120 × 31.5 mm are in stock

Choose a brand and request a quote. Products of the same size are interchangeable; check the shield / seal type.

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30311

Tapered roller bearing

● 2 options in stock

Designation by brand: SKF 30311 J2/Q FAG 30311-A NSK HR30311J NTN 4T-30311 KOYO 30311JR

31311

Tapered roller bearing (steep contact angle)

● 2 options in stock

Designation by brand: SKF 31311 J2/Q FAG 31311-A NSK HR31311J NTN 4T-31311 KOYO 31311JR

Same diameters, different width

55x120x29 (15) 55x120x43 (8) 55x120x45.5 (3) 55x120x49.2 (5)

Other sizes with 55 mm inner diameter

55x70x8 (4) 55x70x10 (2) 55x72x8 (2) 55x75x10 (3) 55x78x16 (3) 55x80x8 (4) 55x80x10 (3) 55x90x10 (3) 55x90x18 (6) 55x90x23 (4) 55x100x21 (19) 55x100x22.75 (5) 55x100x25 (10) 55x100x26.75 (3) 55x100x33.3 (4) 55x105x35 (4)

All sizes with 55 mm inner diameter →

What does size 55x120x31.5 mean?

  • 55 mm inner diameter (shaft), 120 mm outer diameter (housing), 31.5 mm width. Dimensions are brand-independent; measure the inner diameter, outer diameter and width with a caliper to verify your part.
  • Bearings of the same size are interchangeable, but the shield / seal type (open, ZZ, 2RS), internal clearance (C3) and bearing type (ball / roller) must suit the application.
  • If you are not sure, send us a photo of the part or the code on it; we will find the right product and price.