Thrust ball bearing 51113 1.low noise with high speed 2.deliver on time 3.new type high durable life 4.ISO9001:2000 Thrust ball bearing ... , mechanical manufacturing, food, medicine, automobiles, textiles, and chemicals etc.Features,Thrust ball bearings from the seat, shaft rings and balls in the ... , and the shell with the said seat. Chrome steel GCr15 Thrust ball bearing 51113