Puch bearings

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A list of bearings and seals needed to rebuild a Puch E50 engine, divided by crank. (See Puch E50 Crankshafts for more information on the different crankshafts). Also the Bearing and Seal Chart for a more comprehensive list and different makes and models.

Stock, DMP Stuffed/Unstuffed, Super Stuffy, Rito

The complete list of Puch E50 bearings and seals for the stock crank, the DMP stuffed/unstuffed crank, the Treats Super Stuffy crank, and the Rito crank is:


  • 3 X 6203 C3 (two counter shaft bearings optional)
  • 1 X 6203 NR


  • two 2 X 17x40x7 Double lipped
  • one 1 X 22x40x7 Double lipped

Austro-Daimler One Speed


  • 3 - 6203 C3
  • 1 - 6203 NR


  • 2 - 17x40x7 Double Lipped
  • 1 - 17x40x7 Single Lipped
  • 1 - 17x26x6 Single Lipped

Top Racing

Bearings and seals needed for the The Top Racing Crank:


  • 1 X 6203 ST 17x22x12 (outer race) 11mm inner race -Clutch side snap ring

(-or a 6203 NR with the clutch side circlip slot machined 1mm further)

  • 3 X 6203 C3


  • three 17x40x7 seals (and zero 22x40x7 seals)

Where To Buy

Allied Bearings Corporation
3525 W Lincoln Ave
Milwaukee, WI 53215
(414) 672-3111

Crush Bearings & Drives Inc.
325 Baxter Avenue
Louisville, KY 40204
Ph: 502-589-3239
Ph: 800-573-2359
Fax: 502-568-6590

Action Bearing Company
201 Brighton Avenue
Allston, MA 02134
Ph: 617-782-1400