618/670 Deep Groove Ball Bearing (670x820x69mm)

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)670 mm

Outer diameter (D)820 mm

Width (B)69 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 RatingFatigue Load Limit
SKF 618/670 MAC442 kNC01000 kNPu15.6 kN
Timken 618/670MACr395 kNC0r780 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
SKF 618/670 MA——1,300 r/min1,100 r/min
Timken 618/670MA560 r/min670 r/min——

References

  1. SKF — SKF Group, Rolling Bearings, PUB BU/P1 17000/1 EN, Oct. 2018.
  2. Timken — The Timken Company, Deep Groove Ball Bearings, Catalog E10857-GB, North Canton, OH, USA.

Related Bearings

Bearings with the same boundary dimensions (670 × 820 × 69 mm), across types and variants.

Deep Groove Ball Bearing618/670 MA (SKF) | 618/670MA (Timken)
Cylindrical Roller BearingNCF18/670

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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 →