Electric motors and generators
High-speed radial support where catalogue ratings apply.
Industrial bearings
Cylindrical Roller Bearings
Type authority for cylindrical roller bearings: high radial capacity, NU/NJ/NUP configurations, applications and engineering selection guidance.
Overview
Cylindrical roller bearings use straight rollers in line contact with raceways, providing high radial load capacity and suitability for high-speed applications relative to many other roller types.
Single-row, double-row and multi-row designs address different load and stiffness requirements. Many designs allow axial displacement of the shaft relative to the housing within limits.
Configurations and subtypes
Single-row NU/NJ/NUP types
Different configurations of fixed and floating ring arrangements for axial guidance.
Double-row designs
Increased radial capacity and stiffness for machine tool and gearbox applications.
Full complement variants
Maximum roller count for load capacity where speed is secondary.
Applications
Gearboxes
Shaft support with defined axial float or location.
Machine tools
Spindle and feed mechanisms requiring stiffness.
Pumps and compressors
Process equipment with radial-dominated duty.
Rail and transport
Axle and traction applications per designation.
Industrial fans
High-speed radial loads with controlled alignment.
Engineering selection
Radial load and life
Equivalent dynamic load
Size selection starts from radial duty and required rating life.
Axial guidance requirement
Float vs fixed arrangement
Select NJ, NUP or paired arrangements when axial location is required.
Speed capability
Operating speed and precision
Cylindrical rollers often suit higher speed than full complement designs.
Fit and mounting
Interference and thermal expansion
Shaft and housing fits follow application standards and manufacturer tables.
Lubrication
Oil or grease per speed
Confirm lubricant and interval from catalogue for the designation.
Designation strings
Series, bore and variant suffixes
Send manufacturer part numbers for identification support.
Brand coverage
Evidence-governed relationships and type-relevant market reference for cylindrical roller bearings. Authorised pathways and market brands are presented separately.
Commonly specified market brands
Manufacturers and product brands commonly specified for this bearing type in industrial and OEM applications. Inclusion is for engineering identification and interchange reference only.
SKF
NSK
Schaeffler
FAG · INA
Timken
These manufacturers and bearing brands are commonly specified in industrial and OEM applications. Brand inclusion on this page is for market reference and engineering identification only and does not constitute an authorised supply relationship.
Engineering context
This page is a type authority reference for the Cylindrical Roller Bearings family within Golden Bearing Company’s industrial bearings taxonomy. It supports engineering selection and enquiry intent without a published designation catalogue.
Designation-level dimensions, load ratings and speed limits will be published on individual product pages only when backed by verified manufacturer source data. Until then, request quotation support with your part number, bore size and application duty.
Have a part number or designation?
Send manufacturer part numbers, bearing designations, bore sizes or operating context for engineering identification and quotation support.
This is an identification/interchange enquiry—not a live stock lookup or availability confirmation.
Common questions
NU types allow axial displacement of the shaft; NJ types provide limited axial guidance through the roller end flanges. Selection depends on mounting arrangement.
Pure axial load is not the primary function. Some types accommodate limited axial loads; verify against manufacturer tables for the specific designation.
Where higher radial stiffness and capacity are required, such as machine tool spindles and precision gearboxes.