EC6307-2RS is an EC reinforced single-row deep groove ball bearing. The suffix -2RS indicates double-sided NBR rubber contact seals. It is pre-filled with grease at the factory, maintenance-free, dustproof, and resistant to splashing water vapor. Model EC6307-2RS AC6307-2RS Brand ZH Material Chrome Steel precision P0 P6 P5 P4 Product Description Large and medium-sized motors, water pumps, fans, air compressors, agricultural machinery, conveying equipment, small speed reducers