638 - Deep Groove Radial Ball Bearing, 0.315" Bore (ID)

SKU: 638-2RS
We offer bundled pricing for all ball bearings. Discounts for packs of 2, 5, 10, 50, and 100 units are automatically applied at checkout.
Seal Type
$1.99
In stock
Ships the same business day when ordered before 1:00p PST (M-F)
Product details
  • Part Number 638
  • Bore (Inner Diameter) 0.315 in | 8 mm
  • Outer Diameter 1.102 in | 28 mm
  • Width 0.354 in | 9 mm

Please double-check the width before placing your order

Some Open (No Seal) bearings may have a different width than sealed versions (2RS & ZZ)

Description

High-Performance Deep Groove Ball Bearing

638 is a precision deep groove radial ball bearing designed for smooth rotation, reduced friction, and dependable performance in high-speed and general-purpose applications. Manufactured for durability and consistent operation, this bearing is suitable for electric motors, small machinery, tools, and mechanical assemblies.

Part Number 638
Inner Diameter (Bore) 0.315 in | 8 mm
Outer Diameter 1.102 in | 28 mm
Width (Closed Seal) 0.354 in | 9 mm
Width (Open Style) 0.354 in | 9 mm

Seal Types

  • Open (No Seal)
  • Metal Shield (ZZ)
  • Rubber Seal (2RS)

Cross Reference

MR638-2RS, 638RS, 638 2NSL, MR638-ZZ, 638-ZZ, 638ZZ, 638-2Z