Spherical Roller Bearings
Technical guide to spherical roller bearings: construction, load capacity, misalignment tolerance and industrial applications.
Technical reference for engineering selection. Contact Golden Bearing Company for product availability and quotation support.
What are spherical roller bearings?
Spherical roller bearings use barrel-shaped rollers in two rows on a common inner ring, with a spherical outer ring raceway. The geometry allows the bearing to tolerate shaft misalignment while carrying heavy radial loads and moderate axial loads in both directions.
Construction and design features
Common variants include steel or brass cages, cylindrical or tapered bore, and designs for vibrating screens (e.g. C4 clearance). Dimensions follow ISO series; bore, outside diameter and width define the basic size. Sealed versions reduce relubrication frequency in contaminated environments.
Load ratings and misalignment
Dynamic load ratings determine L10 life at rated speed. Spherical rollers accept angular misalignment typically up to 1-2 degrees depending on series and clearance. Axial capacity is secondary to radial but useful in reversing thrust conditions.
Applications and industries
Typical installations include mining conveyors, cement kilns and mills, paper machine rolls, vibrating screens, industrial gearboxes and wind turbine main shafts where deflection or housing distortion occurs.
Selection considerations
Specify bore, speed, equivalent radial load, required life, operating temperature and lubrication method. For combined thrust duty or stiff axial location, compare with tapered roller bearings. For integrated housing solutions, see mounted unit families under industrial bearings.
How Golden Bearing Company can help
This page is a technical reference for engineering selection. Share application duty and dimensions for quotation support. Contact us with bore, speed and load data.
Have a part number or designation?
Send manufacturer part numbers, bore sizes or coupling designations for engineering identification and quotation support. This is an identification/interchange enquiry—not a live stock lookup or availability confirmation.
Common questions
Choose spherical roller bearings when misalignment, heavy radial load or vibrating duty is expected. Cylindrical designs suit high radial load with limited misalignment.
Internal clearance greater than normal (C3) allows for thermal expansion and interference fits. Selection depends on mounting, temperature rise and manufacturer guidance.