... best ser High performance Needle Roller Bearings HK1612Main productsA) Deep groove ball bearing :Metric 6001-6044, 6201-6240, 6301-6340, 16000 series, Thin ... ) Spherical roller bearing:22200, 22300, 22300, 23000, 23100, 23200 series. Suffixes with CA, K, W33 types availableC) Cylindrical roller bearing ... in our products,please feel free to contact us:. High performance Needle Roller Bearings HK1612