Quote TR

8 × 28 × 9 mm bearing

638 2RS · 638 ZZ — 2 products, 1 brands

1 products in size 8 × 28 × 9 mm are in stock

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

638 2RS

Single row deep groove ball bearing · Rubber seals both sides (2RS)

● 1 options in stock

Designation by brand: SKF 638-2RSH FAG 638-2RSR NSK 638DDU NTN 638LLU KOYO 638-2RS

638 ZZ

Single row deep groove ball bearing · Metal shields both sides (ZZ / 2Z)

Out of stock

Designation by brand: SKF 638-2Z FAG 638-2Z NSK 638ZZ NTN 638ZZ KOYO 638ZZ

Other sizes with 8 mm inner diameter

All sizes with 8 mm inner diameter →

What does size 8x28x9 mean?

  • 8 mm inner diameter (shaft), 28 mm outer diameter (housing), 9 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.