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17mm. SB203  Ball Bearing from ETK.

– The bearing is often mounted to the shaft by  two set screws in the extended portion of the inner ring.


SB203 Bearing Details

  • Product: SB203 Bearing
  • Bearing Material: Bearing Steel (GCr15 Chrome Steel)
  • Bearing Precision: P0V1 and P6V2
  • Multiple Bearing Seal Options: Double Seal, R3 (Tripple-Lip)  Seal, F Seal. For more information about ETK Bearing seals, please visit our Bearing Seal section.
  • Also available with eccentric locking collar.
  • Medium duty and heavy duty models are also available.

SB203 Bearing Dimens


Bore diameter(d):17  mm

Width of outer ring(Be): 12 mm

Outside diameter(D); 40  mm

Width of  inner ring(Bi):  22  mm

Bearing Inner Race Width-Short Side(n): 6.0  mm

Bearing Inner Race Width-long Side (m): 16.0  mm

Distance thread(G):  4.5 mm

Width of flats(2-ds): M6X1.0


Basic dynamic load rating, radial: 9550  N

Basic static load rating, radial: 4780  N

Weight: 0.10  kg






*All information in this table has been carefully checked for mistakes. However, the catalog data should not be relied upon entirely for design and development purposes. ETK Bearings assumes no liability for possible errors or omissions. All dimensions and specifications are subject to change without notice. Contact ETK Bearings for the most current technical data regarding ETK products.

Product Information

  1. SB203 Bearing is widely used in various applications due to their versatility and reliability. Common applications include agricultural machinery, textile, printing, construction, conveyor systems, fans, and automotive parts. UC bearings can provide precise motion control and support under radial loads.
  2. The design of SB203  bearing allows for easy mounting and alignment,  suitable for a broad range of industrial and commercial uses.
  3. Metric Standard  see our  Ball bearing SB203  in our full bearing catalogue.
  4. You can watch the application of ETK’s  SB203  Ball  Bearing in these Youtube videos!



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