Zhejiang Lisheng Spring Co.,Ltd.

Company overview

Zhejiang Lisheng Spring Co.,Ltd. is based in Zhejiang Province, China, and develops and manufactures precision wave springs, spiral retaining rings and self-locking fasteners. Its component range serves unmanned systems, aerospace and precision drive applications, including drone propulsion and electric drive assemblies. Within compact motor assemblies, its wave springs provide axial preload and can reduce the axial space required by the spring by up to 50% compared with conventional coil springs, supporting more compact mechanical layouts.

The LS/LMS Wave Spring with Shim Ends is intended for space-constrained assemblies requiring relatively small loads and deflections, low spring stiffness and axial preload. A flat ring at each end increases the contact area and distributes loading more evenly. The range has a stated size of 5–60 mm, with 631 stainless steel and 65Mn carbon steel material options. Available colors are yellow-brown, blue and dark gray, and customization is offered.

Lisheng's balanced spiral retaining rings are designed for propeller connections and quick-release couplings operating at high rotational speeds and under strong vibration. Their 360° earless design supports dynamic balance, while self-locking features are intended to resist expansion or loosening caused by centrifugal forces. In quick-release assemblies, the rings support positioning and structural integrity through repeated installation and removal. Alongside standard components, the company offers customized development using its Edgewound manufacturing process, which does not require tooling. Its broader material choices include 17-7PH stainless steel and Inconel superalloys for applications involving salt spray, high humidity and extreme temperature fluctuations.

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