ZWZ brand has been ranked 1st place by the experts from China Ministry of Railway after auditing all railway bearing manufacturers in nationwide.
No accidents occurred such as shaft burnt or cut in 3 succession years for brand bearings.Precision can meet P5 Class, 200% inspection to the products out of factory and 300% inspection to the key process.
As the high quality of ZWZ railway bearing, ZWZ has obtained 47% market share in the bid of China Ministry of Railway this year. Coach bearings account for 30% of the market. Wagon bearings account for 40% of the market.
ZWZ has over 200 faithful bearing customers, such as the Bureau of Shenyang Railway, Changchun Caoch, Qiqihar Factory etc. ZWZ has 38 production lines for rings, rolling elements and cages. All the final machining procedures are processed in the imported production lines. The rings of coach bearing are quenched in bainite. The rollers and raceway of wagon bearing are processed by the logarithmic curve. The annual production capacity for the wagon bearing is 250,000 pieces, the coach bearing 100,000 pieces, the locomotive bearing 50,000 sets.
ZWZ is the exclusive bearing manufacturer in China providing comprehensive bearing supply for railway wagon, coach and locomotive.