618/3 Deep Groove Ball Bearing (3x7x2mm)

How to read this designation →

Bearing dimensions and basic technical information.

Schematic of an open single-row deep groove ball bearing with a pressed steel cage

Schematic only — for the actual construction, refer to each manufacturer's information.

Bore diameter (d)3 mm

Outer diameter (D)7 mm

Width (B)2 mm

TypeDeep Groove Ball Bearing

RowSingle Row

ClearanceCN

Cage

Material Steel

Manufacturer Ratings

Load-rating symbols are printed as each manufacturer writes them in its own catalogue, so the same quantity can carry a different symbol from brand to brand.

BrandDynamic Load RatingStatic Load Rating
Timken 618/3Cr0.31 kNC0r0.11 kN

Speed Ratings

Speed limits depend on sealing and lubrication, and definitions differ by manufacturer. Contact-sealed variants are normally greased for life and run slower. Always confirm the exact variant in the manufacturer's table.

BrandGrease
open / shielded		Oil
open		ReferenceLimiting
Timken 618/374,000 r/min88,000 r/min——

References

  1. Timken — The Timken Company, Deep Groove Ball Bearings, Catalog 10857, North Canton, OH, USA.

Related Bearings

Bearings with the same boundary dimensions (3 × 7 × 2 mm), across types and variants.

Deep Groove Ball BearingW 618/3

Related Guides

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Disclaimer: Data on this page is compiled from publicly available online sources for reference only, and not every model appears in a manufacturer's published catalog. Values may differ between sources and editions — always verify against the manufacturer's current documentation before design or purchase.Full disclaimer →