Home Bearings Ball Bearings Miniature SR4-12B-2RS-ECO Miniature Ball Bearing 6.35×19.05×7.142mm
SR4-12B-2RS-ECO Miniature Ball Bearing 6.35x19.05x7.142mm
SR4-12B-2RS-ECO

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MBA

SR4-12B-2RS-ECO Miniature Ball Bearing 6.35×19.05×7.142mm

Part Number: SR4-12B-2RS-ECO
Inner Diameter (Bore) 6.35 mm
Outer Diameter 19.05 mm
Width 7.142 mm
Seal Type Sealed (2RS)

SR4-12B-2RS-ECO miniature radial ball bearing. 6.35mm bore x 19.05mm OD x 7.142mm width. Sealed (2RS). Stainless Steel (AISI 440C).

Qty:
  • Available in AISI 440C stainless steel or SAE 52100 chrome steel
  • Cross-referenced to equivalents from NSK, NMB, SKF, GRW, Koyo, EZO and more
  • Manufactured to ABEC / ISO precision standards
  • Precision miniature radial ball bearing
  • Suitable for instruments, small motors, medical and dental equipment, robotics, RC models and electronics
Brand

MBA
Bearing Type

Miniature Ball Bearing
Series

R4-12B
Inner Diameter (Bore)

6.35 mm
Outer Diameter

19.05 mm
Width

7.142 mm
Seal Type

Sealed (2RS)
Material

Stainless Steel (AISI 440C)
Configuration

Non-Flanged
Precision Grade

ABEC 1
Lubrication

Economy Grade
Features & Benefits Available in AISI 440C stainless steel or SAE 52100 chrome steel
Cross-referenced to equivalents from NSK, NMB, SKF, GRW, Koyo, EZO and more
Manufactured to ABEC / ISO precision standards
Precision miniature radial ball bearing
Suitable for instruments, small motors, medical and dental equipment, robotics, RC models and electronics

SR4-12B-2RS-ECO Miniature Ball Bearing

The SR4-12B-2RS-ECO is a precision miniature radial ball bearing, with a 6.35mm bore, 19.05mm outside diameter and 7.142mm width. It features contact nitrile rubber seals on both sides (2RS) for maximum protection against dust and moisture, and is manufactured from corrosion-resistant AISI 440C stainless steel.

Miniature ball bearings are widely used in instruments, small electric motors, medical and dental handpieces, robotics, model engineering and precision electronics where compact size and smooth high-speed rotation are essential.

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