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Industrial gearbox shafts, gears and roller bearings laid out for overhaul

Technical notes · Gearbox & reducer bearings

NTN Gearbox & Reducer Bearing Technical Notes

Specify NTN gearbox bearings by shaft position, not just size. Practical notes from oemntn.com, an NTN authorized distributor in Hong Kong, on shaft positions, suffixes, paired arrangements and overhaul parts lists.

Input / intermediate / output shaft Locating / non-locating NTN suffixes

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Latest bearing selection notes

Each note covers one point that decides the correct NTN execution for a gearbox or reducer overhaul.

Next step · Complete overhaul list

Send your complete overhaul list for a written NTN quote

oemntn.com quotes gearbox and reducer bearings as one coordinated parts list, not as unrelated single items. The written quote states model, quantity, price and currency, availability, estimated lead time, quote validity and applicable shipping or tax terms.

  1. 01Send model, shaft positions, suffixes and quantities
  2. 02Close identification gaps; approve any substitutes
  3. 03Receive and review your written quote
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Reducer overhaul workbench with tapered and cylindrical roller bearings