Home Bearings Ball Bearings Miniature SFR155A-ZZS-MC3 Miniature Ball Bearing Flanged 3.969×7.938×3.175mm
SFR155A-ZZS-MC3 Miniature Ball Bearing Flanged 3.969x7.938x3.175mm
SFR155A-ZZS-MC3

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MBA

SFR155A-ZZS-MC3 Miniature Ball Bearing Flanged 3.969×7.938×3.175mm

Part Number: SFR155A-ZZS-MC3
Inner Diameter (Bore) 3.969 mm
Outer Diameter 7.938 mm
Width 3.175 mm
Seal Type Shielded - Removable (ZZS)
Clearance MC3

SFR155A-ZZS-MC3 miniature flanged radial ball bearing. 3.969mm bore x 7.938mm OD x 3.175mm width. Shielded – Removable (ZZS). 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

FR155A
Inner Diameter (Bore)

3.969 mm
Outer Diameter

7.938 mm
Width

3.175 mm
Seal Type

Shielded – Removable (ZZS)
Material

Stainless Steel (AISI 440C)
Configuration

Flanged
Precision Grade

ABEC 1
Clearance

MC3
Flange Outer Diameter (DF)

9.119 mm
Flange Width (BF)

0.914 mm
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

SFR155A-ZZS-MC3 Miniature Ball Bearing

The SFR155A-ZZS-MC3 is a precision miniature flanged radial ball bearing, with a 3.969mm bore, 7.938mm outside diameter and 3.175mm width. It features removable metal shields on both sides (ZZS) allowing cleaning and re-lubrication, and is manufactured from corrosion-resistant AISI 440C stainless steel.

Flange outside diameter (DF): 9.119mm. Flange width (BF): 0.914mm.

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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