1. Product Overview 6304-2RS is single row deep groove ball bearing. 2RS stands for double-sided contact rubber seals which effectively block dust, debris and light moisture intrusion. It bears radial load and minor bidirectional axial load, pre-filled with lubricating grease for direct installation. Widely applied on electric motors, water pumps, farm machinery, conveyors and medium-load rotary machinery. Formal quotation will be sent within 24 hours upon your inquiry. 2.