Quote TR

45 × 73 × 20 mm bearing

51209 — 4 products, 4 brands

3 products in size 45 × 73 × 20 mm are in stock

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

51209

Thrust ball bearing (single direction)

● 3 options in stock

Designation by brand: SKF 51209 FAG 51209 NSK 51209 NTN 51209 KOYO 51209

Other sizes with 45 mm inner diameter

All sizes with 45 mm inner diameter →

What does size 45x73x20 mean?

  • 45 mm inner diameter (shaft), 73 mm outer diameter (housing), 20 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.