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New Energy Compressor – Composite Bearing

Features: Designed for crankshafts in reciprocating compressors. In the early design phase, the customer evaluated two solutions and conducted life‑testing, both relying on imported bearings. The first option used a single set of deep‑groove ball bearings; however, during testing, the assembly disintegrated at high temperatures after approximately 100 hours of operation. The second option employed a double‑row solid needle roller bearing, which ultimately seized due to lubrication issues toward the end of testing—neither solution met the desired service life requirements. In response to these findings, our company developed a compact, higher‑capacity composite bearing that combines a ball and a cylindrical roller, featuring integrated sealing and lubrication. It can handle bidirectional combined loads: radial impact loads are primarily borne by the rollers, while axial loads are supported solely by the steel balls (for axial positioning). Additionally, the increased roller diameter significantly enhances load‑carrying capacity compared with the original needle roller bearing. The retainer is made from a high‑performance polymer composite, offering excellent high‑temperature resistance, reduced weight, and improved operational stability. The grease used is a German‑imported high‑temperature formulation containing nano‑scale solid additives, making it well suited for applications involving high temperatures, heavy loads, and fretting wear. This bearing is also applicable to scroll compressors, pumps, gear reducers, and other industries.

Product Description

Features: Applied to the crankshaft of reciprocating compressors, this bearing was initially evaluated against two alternative designs during the early stages of development, both of which relied on imported bearings. The first option employed a single set of deep‑groove ball bearings; however, in actual testing, it disintegrated at elevated temperatures after approximately 100 hours of operation. The second option used a double‑row solid needle roller bearing, which, toward the end of testing, seized due to lubrication issues under high‑temperature conditions—neither design met the desired service life requirements. In light of these findings, our company has developed a compact, higher‑capacity composite bearing that combines a ball and a cylindrical roller, featuring an integrated seal and lubrication system. It is capable of handling bidirectional combined loads: radial impact loads are primarily borne by the rollers, while axial loads are supported solely by the steel balls (for axial positioning). Furthermore, the increased roller diameter significantly enhances load‑carrying capacity compared with the original needle roller bearing. The retainer is made from a high‑performance polymer composite, offering excellent high‑temperature resistance, reduced weight, and improved operational stability. The grease used is a German‑imported high‑temperature formulation containing nano‑scale solid additive particles, making it well suited for applications involving high temperatures, heavy loads, and fretting wear.

It can also be applied in industries such as scroll compressors, water pumps, and gear reducers.

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.

Creating value for society through fast, professional, and high-quality service.

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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

Chichuang·Shenzhen

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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