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New Energy Compressor – Needle Roller Bearing

Features: Designed for the crank‑piston end of reciprocating compressors. Currently, most piston needle bearings are imported, with only a small fraction assembled domestically from off‑the‑shelf components. The typical designs fall into three categories: stamped‑steel needle rollers with an oil seal, solid full‑needle rollers with an oil seal, or self‑assembled full‑needle rollers with an oil seal—each of which encounters numerous issues in service. Our company employs a solid‑needle roller design that incorporates an integral seal and pre‑filled grease, ensuring reliable lubrication even under high‑speed and vibration conditions. Additionally, the bearing width has been increased and the roller dimensions extended, reducing stress and wear during slight oscillations and providing smoother performance under impact loads. For sealing, we use a specialized rubber combined with a spring‑steel plate and a double‑lip radial locating structure on the inner ring, enhancing sealing accuracy and minimizing grease leakage under vibratory operating conditions. As for the lubricant, we utilize high‑temperature grease imported from Germany, formulated with nano‑scale solid additives, making it ideally suited for high‑temperature, heavy‑load, and fretting‑wear applications. This product is also suitable for use in scroll compressors, vacuum pumps, and other industries.

Product Description

Features: Applied to the crank‑piston end of reciprocating compressors, current piston needle roller bearings are predominantly imported, with only a small fraction assembled domestically from off‑the‑shelf components. The typical designs fall into three categories: stamped‑type needle rollers with oil seals, solid‑type full‑needle rollers with oil seals, or self‑assembled full‑needle rollers with oil seals—each of which encounters numerous issues in service. Our company employs a solid‑needle roller design that incorporates an integral seal and pre‑loaded grease, ensuring reliable lubrication under high‑speed and vibratory conditions. Additionally, the bearing width has been increased and the roller dimensions extended, reducing stress and wear under minute oscillations and providing greater stability under impact loads. For sealing, we utilize a specialized rubber combined with spring‑steel plates and a double‑lip radial locating structure on the inner ring, enhancing sealing accuracy and minimizing grease leakage under vibrating operating conditions. As for the lubricant, we use a high‑temperature grease imported from Germany, formulated with nano‑scale solid additives, making it well suited for high‑temperature, heavy‑load, and fretting‑wear applications.

It can also be applied in industries such as scroll compressors or vacuum pumps.

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Hangzhou Chichuang Shaft Research Technology Co., Ltd.

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

Welcome to contact us.

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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