SZZH roller bearings.SZZH is a professional designer and manufacturer of needle roller bearings, cylindrical roller bearings and needle rollers, and a national high-tech enterprise. The registered trademark is “Zhonghua”, “SZZH”. SZZH was founded in 1958, the main product series are needle roller bearings, cylindrical roller bearings, thrust bearings, roller bearings, linear motion roller guide bearings, rolling elements and all kinds of customized non-standard component products, etc. SZZH products are widely used in automotive transmissions, engines, engines, and needles. SZZH products are widely used in automotive transmission, engine, distributor and other powertrain systems, new energy vehicle electric drive system, steering system, braking system, driveshaft system, air conditioning compressor and other automotive fields, but also for construction machinery, reducer, power tools, household appliances and other industries supporting.