6004

Product dimensions: 20mm42mm12mm. Rubber seal: Made of rubber sealing material. It can block intrusion of all foreign objects and offers excellent dustproof performance, recommended for harsh working environments. Metal shield seal: Features low friction resistance, fast heat dissipation, high temperature resistance, high rotational speed, reliable quality and long service life. Open type (no seal): The open design enables higher rotating speed than the other two types with low rolling resistance, suitable for non-sealed environments. Quality guaranteed for worry-free operation!