16004 Deep Groove Ball Bearing (20x42x8mm)

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)42 mm

Width (B)8 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 16004C7.28 kNC04.05 kNPu0.173 kN
NSK 16004Cr8.7 kNC0r4.45 kN—
Schaeffler (FAG) 16004Cr7.91 kNC0r4.48 kNCur0.24 kN
NTN 16004Cr8.75 kNC0r4.5 kNCu0.35 kN
Timken 16004Cr6.3 kNC0r3.8 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 16004——38,000 r/min24,000 r/min
NSK 1600418,000 r/min20,000 r/min——
Schaeffler (FAG) 16004——13,800 r/min26,000 r/min
NTN 1600418,000 r/min21,000 r/min——
Timken 1600413,000 r/min20,000 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 × 42 × 8 mm), across types and variants.

Deep Groove Ball Bearing16004-2RS | 16004-2RZ | 16004-2Z | 16004-LLH

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 →