NACHI Deep Groove Ball Bearing, Series: 6300, 12 mm Bore, 37 mm OD, 1 Rows, 12 mm Width, Double Seal Closure, 9750 N Dynamic/4250 N Static Load, Steel Bearing, Buna-N Seal, Stamped Steel Cage, 16000 rpm Grease/24000 rpm Oil Maximum, 250 deg F