Professional manufacturer of 6311-2Z deep groove ball bearings for retail, wholesale, and OEM services. **Product Specifications:** - Inner Diameter: 55mm - Outer Diameter: 120mm - Thickness: 29mm - Limiting Speed: 5600 RPM - Dynamic Load: 71.5 KN - Static Load: 48 KN **Business Services:** - **Retail**: Small quantity orders accepted, fast delivery - **Wholesale**: Bulk pricing available, large inventory - **OEM**: Customization services, quality assurance Suitable for industrial motors, automotive parts, machinery equipment, and various mechanical applications.