... MaterialChrome steel, Carbon steel, stainless steel, Bearing SteelSized:10-300mm D:20-500mmB:6- ... B: Normal contact angle a=40 ApplicationAutomobile, Machine shaft, Metallurgy, Rolling Mill, Mining, Petroleum, Paper Making ... service, in time delivery, competitive price and high quality. 3.24 hours a day, 7 days ... cost performance is very high. High Quality Four Point Angular Contact Ball Bearing