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Motor – Low-Noise Bearing

Features: Deep-groove ball bearings are the most widely used type of rolling bearing in electric motors, primarily due to their quiet operation and additional advantages such as high speed capability and low friction. These bearings can accommodate radial loads as well as axial loads in both directions, making them suitable for use as locating bearings. In typical motor designs, one end is fixed while the other is floating to compensate for shaft expansion and contraction during operation; alternatively, a wave‑shaped washer can be fitted to the outer ring of the floating‑end bearing to apply preload and further reduce noise. Our company’s motor bearings offer a rated dynamic load capacity (Cr) comparable to standard models, with axial load‑carrying capacity improved by more than 20%. Bearing vibration levels are significantly reduced, resulting in a noise reduction of 1–2 grades. They are well suited for high‑speed applications, with a maximum permissible speed increased by over 150%, and under high‑speed conditions, temperature rise can be lowered by up to 20°C. Additionally, they exhibit enhanced wear resistance and impact resistance. With broad applicability, these bearings are also suitable for 80% of other applications that typically employ deep‑groove ball bearings.

Product Description

Features: Deep groove ball bearings are the most widely used type of rolling bearing in electric motors, primarily due to their quiet operation and additional advantages such as high speed capability and low friction. These bearings can accommodate radial loads as well as axial loads in both directions, making them suitable for use as locating bearings. In typical motor designs, one end is fixed while the other is allowed to float, thereby compensating for shaft thermal expansion and contraction during operation. Alternatively, wave‑shaped shims can be installed on the outer race of the floating‑end bearing to apply preload and further reduce noise. Our company’s motor bearings feature a dynamic load rating (Cr) comparable to standard models, with axial load capacity improved by more than 20%. Bearing vibration levels are significantly reduced, resulting in a noise reduction of 1–2 grades. They are well suited for high‑speed applications, with a maximum permissible speed increased by over 150%, and under high‑speed conditions, temperature rise can be lowered by up to 20°C. Additionally, these bearings exhibit enhanced wear resistance and superior impact resistance.

It is highly versatile and can also be used in other applications where deep groove ball bearings are employed, accounting for approximately 80% of such uses.

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.

Hangzhou Chichuang Shaft Research Technology Co., Ltd.

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E-mail: info@chiprobr.com

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Chichuang·Hangzhou

Phone: 0571-89010675

Address: Floor 4, Unit 2, Building 10, No. 505 Xingguo Road, Linping District, Hangzhou City

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Phone: 15868687023

Address: Room 2405, Building 111, Phase I, Vanke City, Nanbu Bay, Humen Town, Dongguan City

Chichuang·Chongqing

Phone: 0571-89010675

Address: Building 4, No. 5 Huoju Avenue, Jiulongpo District, Chongqing City

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