Thin section bearings are designed for applications where space is limited, helping to meet challenging specifications commonly in high-tech applications. These bearings are created from a limited number of widths and thicknesses/cross-sections. Each cross-section is produced in a vast range of bore diameters. The cross-section remains the same as the bore diameter increases. The makeup of the thin section bearing helps to contribute to the saved area, saved weight, great running accuracy, and design flexibility. Thin section bearings have super-finished raceways, which provide a smooth surface finish that helps to reduce friction. The bearings also have a high-quality ball component to ensure a smooth rolling performance. Thin section bearings are used in medical equipment, robotics, construction equipment, food processing, and textile machinery.

Types of Thin Section Bearings

Three kinds of Open Thin Section Bearings are available: Radial contact (C Type), Angular contact (A Type), and Four-point contact (X Type). Two kinds of Sealed Thin Section Bearings are available: Radial contact (C Type) and Four-point contact (X Type).

Difference between Three Types of Bearings (C, A, and X Type)

The raceway and the steel balls are angularly contacted for the Thin Section Angular Contact Ball Bearings (A Type). The difference is the shape of the groove. For the Thin Section Radial Contact Ball Bearings (C Type), the center of the raceway radius is on the center-line of the steel balls. The center of the raceway radius deviates from the center line of the steel balls and is symmetrically distributed around the center line. For the Thin Section Four Point Contact Ball Bearings (X Type), there are two centers of the raceway radius on each side of the raceway. Both deviate from the steel balls’ center line, enabling the Thin Section Four Point Contact Ball Bearings (X Type) to form four-point contact between the raceway and steel balls.