61960 Deep Groove Ball Bearing (300x420x56mm)

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)300 mm

Outer diameter (D)420 mm

Width (B)56 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 61960C270 kNC0375 kNPu8.3 kN
NSK 6960Cr296 kNC0r370 kN—
NTN 6960Cr305 kNC0r375 kNCu13.7 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 61960——3,000 r/min1,900 r/min
↳ 61960 MA———2,400 r/min
NSK 69601,300 r/min1,500 r/min——
NTN 69601,400 r/min1,600 r/min——

↳ rows list a variant's own limiting speed (a shielded version, or a machined brass cage writing) when it differs from the open / standard version; all other figures are shared.

References

  1. SKF — SKF Group, Rolling Bearings, PUB BU/P1 17000/1 EN, Oct. 2018.
  2. NSK — NSK Ltd., Rolling Bearings for Industrial Machinery, CAT. No. E1103, Tokyo, Japan, Jan. 2025.
  3. NTN — NTN Corporation, Ball and Roller Bearings, CAT. No. 2203-3E, Osaka, Japan, Sep. 2000.

Related Guides

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 →