Thin section bearings are used where space saving is very important. They are called thin section bearings because the difference between the inner and outer diameters is much less than with standard bearings. Thin section bearings are, therefore, also very narrow. These properties allow engineers to design more compact equipment.

Thanks to the thin rings and smaller balls, thin section bearings are excellent for low torque applications as they are easier to rotate. They have high rotational accuracy and good rigidity. They are also much lighter than standard bearings so offer weight saving, as well as space saving, advantages. Their load capacities are less than standard bearings, particularly the axial load capacity due to the shallower raceways.

SMB Bearings is available to answer any questions you may have on small, miniature and specialist bearings. Contact us on +44 (0) 1993 842 555 or

Our determination to remain specialised gives us a high level of product knowledge, providing bearing and lubrication solutions to existing or potential customers, whether individuals or large corporations. We don’t just sell bearings, we help to solve your problems. - Chris Johnson, managing director of SMB Bearings.