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Deep-well pump – four-point contact ball bearing (patented)

Features: Optimized structural design + contact angle design Advantages: Four-point contact ball bearings are evolved from deep groove ball bearings. Structurally, they combine the advantages of both deep groove ball bearings and angular contact ball bearings: during operation, the rolling elements make two-point contact with the inner and outer raceways, forming corresponding contact angles. In addition to handling radial loads, four-point contact ball bearings can simultaneously accommodate axial loads in two directions, with significantly enhanced axial load-carrying capacity. Applications: Deep-well pumps, gear reducers, security equipment, and more.

Product Description

Four-point contact ball bearing for submersible pumps (patented)

Features: Optimized structural design + contact angle design

Advantages: Four-point contact ball bearings are an evolution of deep groove ball bearings. Structurally, they combine the advantages of both deep groove and angular contact ball bearings: during operation, the rolling elements make two-point contact with the inner and outer raceways, respectively, thereby forming corresponding contact angles. In addition to accommodating radial loads, four-point contact ball bearings can simultaneously withstand axial loads in two directions, with a significantly enhanced axial load-carrying capacity.

Applications: deep-well pumps, gear reducers, security equipment, and more.

Recommended Products

Single-row deep groove ball bearing

It is the most typical structural form among rolling bearings and finds wide application. In addition to supporting radial loads, it can also accommodate axial loads in both directions. With a low friction torque, it is ideally suited for applications requiring high-speed rotation, low noise, and minimal vibration.

Angular contact ball bearing

They are primarily used in high-speed rotating applications with relatively light loads and can withstand combined radial and axial loads. When installed in pairs, angular contact ball bearings can handle combined radial and axial loads, with the radial component being dominant, and they can also accommodate purely radial loads. In a tandem arrangement, they can only support axial loads in one direction, whereas the other two arrangements can accommodate axial loads in either direction.

Cylindrical roller bearing

Cylindrical roller bearings are line-contact bearings. They offer high load-carrying capacity and primarily support radial loads. The rolling elements experience low friction against the raceway shoulders, making them well suited for high-speed operation. Depending on whether the rings are equipped with shoulders, they can be classified into single-row cylindrical roller bearings—such as NU, NJ, NUP, N, and NF—and double-row cylindrical roller bearings—such as NNU and NN.

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