... noise6. Robust inOperation and normallyrequire little maintenance7. Series of deep groove ball bearings: 6000, 6200, 6300, 6400, 61800,69100,16000 and so on ... are the agent of ZWZ, LYC, HRB, SKF, NTN, NSK, TIMKEN, THK IKO, KOYO. And we also has own brand - " ... bearings in China. Pls provide the size you need, I will quote imediately. We sincerily hope to cooperate with you. deep groove ball ...