1. Product Overview 6216 is standard open single row deep groove ball bearing without shields or rubber seals. It can bear radial load and minor bidirectional axial load simultaneously. The open design allows easy external grease replenishment for long-term continuous operation. Simple structure, high interchangeability and stable rotational performance. Widely used in electric motors, gearboxes, fans, pumps, conveying equipment and various general medium-load rotating