Thin-wall bearings have realized extremely thin bearing sections, as well as miniaturization and lightweighting. The variety of products extends the range of applications. They are generally categorized as Rubber Seal-RS, Iron Seal-ZZ, Plain, Iron Clip-K, and Copper Clip-M.

First. Introduction of thin-wall bearing

In order to obtain low friction torque, high rigidity, and good rotary accuracy of the bearings, steel balls with small outer diameters are used. The use of hollow shafts ensures light weight and space for wiring. Thin-walled bearings realize extremely thin bearing sections, as well as miniaturization and lightweighting of products. The diversity of products expands their range of applications.

The thin-wall 6700 and 6800 series are available in a wide variety of dust cover forms, forms with flanges, stainless steel forms, and wide forms.

Second, the classification of thin-wall bearings

They are generally categorized as Rubber Seal-RS, Iron Seal-ZZ, Flat, Iron Card-K, Copper Card-M. For example: 608RS, 6914ZZ, 61926K, 61844M.

Thin-wall crossed roller bearings

CRA series thin-walled crossed roller bearings (outer ring split type) are small and lightweight crossed roller bearings with very thin outer and inner ring wall thicknesses, which are both small and capable of carrying heavy loads, so that the mounting parts of the bearings on the equipment can be lightweight.

CRB series of thin-walled crossed roller bearings (outer ring split type), the size of the inner and outer ring is minimized, the structure of the outer ring is two parts of the split, the inner ring is a one-piece structure, the most suitable for the requirements of the inner ring rotary accuracy of the place.

CRE series thin-walled crossed roller bearings (inner ring split type) are structured in such a way that the inner ring is divided into two parts and the outer ring is one piece, which is most suitable for places where high rotational accuracy of the outer ring is required.

Thin section bearings are highly accurate, very quiet and have a high load carrying capacity. These ball bearings are available in three designs and are extremely small and mostly square in cross-section. In these series, the cross section remains constant even with larger shaft diameters and bearing bores. These bearings are therefore called equal cross sections. It is this characteristic that distinguishes thin-walled sleeve bearings in the standard ISO series from conventional bearings. As a result, it is possible to select a larger cross-section and use a bearing with a higher load carrying capacity without having to change the shaft diameter. Thin section bearings can be designed to be extremely light and require very little space.

Deep groove ball bearings, four point contact bearings, angular contact ball bearings

Thin section bearings can be deep groove ball bearings (C), four point contact bearings (X), angular contact ball bearings (E). All of these designs are available in different series. The series depends on the size of the cross-section. The balls are matched to the series. Deep groove ball bearings can support axial loads in both directions as well as radial loads. Four-point contact bearings can support bi-directional

Axial as well as radial loads; they therefore operate in the same way as double row angular contact ball bearings. Angular contact ball bearings can be fitted with an optimum number of balls and have a contact angle of 30°. They support higher radial loads than deep groove ball bearings or four-point contact bearings and can support axial loads originating from the same direction. For special requirements, angular contact ball bearings can also be supplied as matched bearings. As a result, the rigidity and load-carrying capacity of these combinations is considerably higher than that of single-bearing products.