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Technical notes from NTN Bearing Supplier

NTN Gearbox Bearing Notes

Practical guidance for gearbox and reducer overhauls: how to mark shaft positions, identify paired arrangements, read NTN suffixes, review duty conditions and buy a complete bearing list.

Technician checking a tapered roller bearing beside an opened industrial reducer in a repair workshop
  1. 01Shaft position marking
  2. 02Paired arrangements
  3. 03Suffix identification
  4. 04Duty condition review
  5. 05Overhaul purchasing

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Latest Technical Notes

Each note answers one working question about specifying NTN gearbox and reducer bearings for repair, assembly or replacement.

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By series

Find NTN Bearings by Series

Move from a note to the bearing family it covers. NTN Bearing Supplier supplies NTN roller and ball bearing series for gearboxes, reducers and heavy drives, so one overhaul can stay on one list.

View All NTN Bearings
Heavy industrial gearbox opened for overhaul, with gears and roller bearings exposed on a workshop floor

Send Your Overhaul List

Send one list by shaft position and receive one written quote covering model, quantity, price and currency, availability, estimated lead time and quote validity.

  • Reducer model and shaft positions
  • NTN suffixes and paired arrangements
  • Quantities and required date
  • Destination country and postcode