Zhejiang Hengli Powder Metallurgy Co., Ltd.

Proven Use by Recognized Brands

The bearing series has been validated through extensive trials and repeated use by well-known domestic and international brands, demonstrating performance comparable to imported components.

Improved Automatic Production Line

The automatic production line has been continuously improved to increase capacity and support consistent manufacturing for construction machinery component supply.

Powder Metallurgy Materials

Sintered, Porous Structure with Lubricant Impregnation

Bearings are produced by sintering metal powders into compacts and finishing through multiple manufacturing processes. The porous compacts are impregnated with lubricants at controlled temperature to enable self-lubrication during operation.

Self-Lubrication to Reduce Dry Friction

When temporary lubricant shortage occurs in service, the impregnated lubricants exude to the running surface under operating heat and suction effects, helping avoid dry friction and protecting key parts such as arm bodies and hydraulic cylinders.

Buffering Effect and Reduced Wear

With low density, porosity, and elastic resistance, alloy self-lubricating bearings can provide a buffering role in use. This helps reduce rigid collision and friction among shafts, arm bodies, hydraulic cylinders, and bushings, lowering wear and protecting the overall machine.