Customized Radial Bearings: Classification of Radial Bearings
Release date:
2023-01-09
Author:
Customized radial bearings The manufacturer stated, Radial bearing Also known as thrust bearings or anti‑rotation bearings that only withstand radial loads, they have a nominal contact angle ranging from 0° to 45°. Radial bearings can further be classified according to their nominal contact angle: those with a contact angle of 0° include deep groove ball bearings, cylindrical roller bearings, and needle roller bearings. Radial ball bearings are widely used in general industrial applications, the automotive industry, agriculture and animal husbandry, the chemical industry, and the household appliance sector.
Based on the nominal contact angle, radial bearings are primarily classified into thrust bearings and radial angular-contact bearings.
1. Axial thrust bearing
Radial bearings with a nominal contact angle of 0° are custom‑designed, including deep groove ball bearings, cylindrical roller bearings, and needle roller bearings. Among these, deep groove ball bearings not only primarily support radial loads but can also accommodate a certain amount of combined axial load; at high speeds, they can even replace thrust bearings to handle purely axial loads, which is why they are sometimes classified as radial–thrust bearings. Their design and calculation procedures are similar to those of the radial–thrust bearings discussed below (such as angular contact ball bearings and tapered roller bearings). Compared with other bearings of the same size, deep groove ball bearings offer lower friction coefficients and higher limiting speeds, while remaining cost‑effective and of high quality, thus enjoying widespread application.
2. Radial angular contact bearings
Customized radial bearings with a nominal contact angle ranging from 0° to 45°, such as angular-contact ball bearings, tapered roller bearings, and self-aligning bearings. Two types of self-aligning bearings, while primarily designed to handle radial loads, can also accommodate relatively small axial loads. Their key advantage lies in their ability to permit a substantial misalignment between the inner and outer ring centers—typically 22 to 3 degrees—thereby providing automatic self-alignment and enabling them to compensate for shaft elongation and significant deviations in the parallelism of the bearing bores.
In addition to thrust bearings and radial angular contact bearings, there are generally other types as well.
Spherical roller bearings: Radial thrust bearings with an outer spherical surface or a wide inner bore equipped with a locking device, available for custom fabrication. They are ideally suited for applications involving simple housing designs.
Tapered-bore bearings: Radial rolling bearings with a tapered inner bore.
Shoulder bearing: A radial thrust bearing with an external axial shoulder, typically located on the outer race or on the outer surface of the tapered portion.
Roller bearings: Radial pivot bearings with a thick cross-section on the outer side, used to allow wheels to pivot on guide rails, such as camshaft guide rails.
Plain washer-type roller (turning) bearing: A roller turning bearing equipped with a pair of plain washers.
As a critical foundational component in industrial equipment and automotive applications, the manufacturing process of bearings is of great importance. Today, China Bearing Network will introduce the key components of bearings and provide detailed insights into the production and machining processes for these parts.
The key components of a bearing include: the bearing raceways (inner and outer rings), the bearing steel balls and rollers, and the ball bearing assembly.
Bearing race (inner and outer races): a circular component of a radial rolling bearing that features one or more raceways.
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