Thin section bearings

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CHG's thin section ball bearings include 7 opened series and 5 sealed series，the inner diameter range from 1.000" to 40.000" and the sectional dimension range from 0.1875" × 0.1875" to 1.000" × 1.000"，3 kinds open type thin section bearings are available: Radial contact (type C), Angular contact (type A) and Four-point contact (type X). 2 kinds sealed thin section bearings are available: Radial contact (type C), and Four-point contact (type X).

We can provide the products with different internal clearances, contact angles, lubrication modes, cage structures and other properties to meet the needs of most customers. Where the corrosion resistance is required, the bearings produced with the stainless steel 9Cr18 should be preferred, with a convenient and quick delivery. Where there is no any severe pollution, the opened bearings should be preferred; where the cleaning and well lubrication are required, the sealed bearings should be preferred.

There are many bearing cage structures for selection, which are used to space evenly the rolling elements and prevent the friction from their mutual contacts. The common cage structures include overall “Crown”, overall circular pockets, wire ring form, teflon spacers, isolation balls and so on.

What are Thin-section Bearings?

Thin-section bearings are incredibly precise, don't make much noise while they run, and can hold a lot of weight. There are three main designs of these bearings, all of which have very small, mostly square cross-sections. Even when the shaft and housing bore diameters are bigger, the cross-section stays the same in each series. Because of this, the bearings are sometimes called constant section (CS) bearings. This is what makes thin section bearings different from the normal bearings that are defined in the ISO series.

Types of Thin Section Bearings

Type	What It Does	Best For
Radial Thin Section Bearings	Handle mostly radial loads (sideways forces)	General use with radial load focus
Angular Contact Bearings	Handle higher axial (thrust) and radial loads	Applications needing thrust support
Four-Point Contact Bearings	Special raceway design with four contact points, supports both radial and thrust loads	Heavy-duty combined loads

Applications of Thin Section Bearings

Aerospace and defense — where every gram and millimeter counts.
Robotics and medical equipment — for precise, smooth motion in compact designs.
Food processing and textile machinery — where reliable, low-friction operation is key.
Construction and industrial equipment — fitting into tight assemblies without adding bulk.