Wiseco B5017 Main Bearing 30 x 62 x 16mm Bearing/ MainWiseco B5017 Main Bearing 30 x 62 x 16mm Bearing Main Wiseco main bearings are manufactured by many of the same suppliers to the OEMs, including leading Japanese manufacturers, and are inspected for accuracy, function, and cleanliness for efficient and reliable service. Manufactured by the same suppliers to OEMs, including leading Japanese manufacturers Precision machined and finished with high quality materials Inspected for accuracy, function, and