Sintered bearings, also known as powder metallurgy bearings or oil-impregnated bearings, are a class of porous metal components that contain lubricating oil within their internal pore structure. Unlike conventional rolling element bearings that require external grease or oil supply, sintered bearings are designed to release oil gradually during operation, providing […]

With over 20 years of manufacturing experience and 15 years in global trade, DUHUI Bearing has witnessed firsthand the critical role that seemingly small components play in massive machinery. While we are renowned as a premier manufacturer of automotive wheel hub bearings, our expertise in power transmission extends to the

For engineers, maintenance teams, and buyers, the distinction between radial and axial loads is not just theory—it’s the fundamental pillar of bearing selection and machine reliability. As a Chinese automotive wheel hub bearing manufacturer with over 20 years of production and 15 years of global export experience, we have seen

A crusher bearing is a specialized component used in rock crushing equipment such as jaw crushers, cone crushers, gyratory crushers, and impact crushers. These bearings must withstand extreme operating conditions: high impact loads, constant vibration, abrasive dust, and frequent temperature fluctuations. Choosing the wrong bearing can lead to premature failure,

An excavator swing bearing is a critical component that connects the upper structure (cab, boom, engine) to the undercarriage (tracks). It enables the excavator to rotate 360 degrees while supporting heavy axial, radial, and tilting moment loads. Without a properly functioning swing bearing, an excavator cannot swing or position its