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Heavy industrial drive equipment with gears and roller bearings in Industrial Gearboxes & Reducers service

NTN Bearings by Application

Industrial Gearboxes & Reducers

Industrial gearboxes and speed reducers use different bearing types at the input, intermediate and output shafts, with radial, axial and combined loads shifting from one position to the next. The main difficulty is matching each bearing to its locating or…

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Application Overview

Operating Conditions and Selection Points

NTN bearing selection for this application starts from the original equipment specification and the duty the bearing actually runs under.

Industrial gearboxes and speed reducers use different bearing types at the input, intermediate and output shafts, with radial, axial and combined loads shifting from one position to the next. The main difficulty is matching each bearing to its locating or non-locating position while keeping the specified clearance and cage execution. Buyers look for exact NTN references and a parts list organized by shaft position.

  • Use cylindrical roller bearings at gear shaft positions that carry high radial loads and need to accommodate axial shaft growth.
  • Specify tapered roller bearings for combined loads, and state any paired arrangement so the set is quoted as a unit.
  • Check the full NTN suffix, including clearance and cage codes, because the same basic number can come in different executions.
  • Reserve angular contact and thrust ball bearings for positions where the original design calls for them, and confirm the load direction before changing type.

Duty Details

State the Duty With the Part Number

Five duty details confirm the exact NTN specification. A part number alone cannot show whether the bearing suits the way it runs.

How each duty detail helps confirm the NTN bearing specification
Duty detail Part number only Stated in your enquiry
Load direction Radial, axial or combined load is left open Confirms the bearing type suits the load path
Speed Running conditions are assumed Checks the series and execution against the duty
Lubrication arrangement Arrangement is not reviewed Checks the execution against how the bearing is lubricated
Shaft position Locating and non-locating positions are not separated Maps each bearing to its input, intermediate or output shaft
Paired arrangement Pairs are treated as unrelated single items Keeps paired bearings together with their arrangement
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Product Categories

NTN Bearing Types for This Application

These NTN bearing categories cover the positions and duties common to this application. Scroll to compare them.

View All NTN Products
Gearbox and Reducer Bearings from the NTN range Gearbox and Reducer Bearings 2 models Cylindrical Roller Bearings from the NTN range Cylindrical Roller Bearings 20 models Tapered Roller Bearings from the NTN range Tapered Roller Bearings 6 models Angular Contact Ball Bearings from the NTN range Angular Contact Ball Bearings 6 models Thrust Ball Bearings from the NTN range Thrust Ball Bearings 10 models Deep Groove Ball Bearings from the NTN range Deep Groove Ball Bearings 60 models

Products

NTN Products for This Application

Each product below is listed for this application. Add its shaft position and duty to your enquiry so the exact execution can be confirmed.

Your Original NTN Specification Stays in Control

Substitutes are always listed separately, and any technical change requires buyer approval.

Related Reading

Selection Articles for This Application

These articles give repair leads, reliability engineers and technical buyers more background on bearing selection for this application.

Other Applications

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NTN Bearing Supplier supplies NTN bearings across industrial drive applications. Choose the one closest to your equipment.

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Written Quote

Get a Written Quote for Industrial Gearboxes & Reducers Bearings

Send your duty details and part list to NTN Bearing Supplier for a written quote covering model, quantity, price, availability and estimated lead time.