61804 Deep Groove Ball Bearing (20x32x7mm)

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)20 mm

Outer diameter (D)32 mm

Width (B)7 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 61804C4.03 kNC02.32 kNPu0.104 kN
NSK 6804Cr4.4 kNC0r2.47 kN—
Schaeffler (FAG) 61804Cr4.02 kNC0r2.46 kNCur0.111 kN
NTN 6804Cr4.45 kNC0r2.47 kNCu0.185 kN
Timken 61804Cr4 kNC0r2.5 kN—

Speed Ratings

Speed limits depend on sealing and lubrication, and definitions differ by manufacturer. The figures below are for the open version of this bearing. Always confirm the exact variant in the manufacturer's table.

Sealed and shielded versions such as 2Z or 2RS have their own pages; a machined brass cage writing gets its own ↳ row where the catalogue prints a different limit.

BrandGrease
open / shielded		Oil
open		ReferenceLimiting
SKF 61804——45,000 r/min28,000 r/min
NSK 680422,000 r/min26,000 r/min——
Schaeffler (FAG) 61804——17,600 r/min33,500 r/min
NTN 680421,000 r/min25,000 r/min——
Timken 6180421,000 r/min25,000 r/min——

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. Schaeffler (FAG) — Schaeffler Technologies AG & Co. KG, Rolling Bearings, HR 1, Herzogenaurach, Germany, Feb. 2025.
  4. NTN — NTN Corporation, Ball and Roller Bearings, CAT. No. 2203-3E, Osaka, Japan, Sep. 2000.
  5. Timken — The Timken Company, Deep Groove Ball Bearings, Catalog 10857, North Canton, OH, USA.

Related Bearings

Bearings with the same boundary dimensions (20 × 32 × 7 mm), across types and variants.

Deep Groove Ball BearingW 61804-2RS1 | W 61804-2Z | 61804-2RS | 61804-2RZ | 61804-2Z | 6804LLH | 6804 (NSK) | 6804 (NTN) | 6804N (NSK) | 6804NR (NSK)

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 →