1. Product Overview The 6318C3 heavy-duty single row deep groove ball bearing is equipped with C3 enlarged internal clearance, standard dimension 90×190×43mm. The 6300 series large steel ball structure delivers superior radial load capacity and can bear slight bidirectional axial load simultaneously. C3 oversize clearance reserves enough expansion gap under long-time high-speed and high-temperature operation, effectively avoid bearing locking caused by thermal expansion of