Hybrid Ceramic Ball Bearings Sealed 6800 to 6902 Series Multiple Sizes for Bicycle Components 2-Pack

High-concerned chemical : None Material : Bearing Steel ====== 【Installation & Handling Warning】 WARNING — IMPROPER INSTALLATION CAN CAUSE SERIOUS INJURY AND BEARING FAILURE. ·Always use proper tools (e.g., arbor press, installation sleeve). Apply force evenly to the ring being pressed (never through seals or balls). ·Never strike the bearing directly with a hammer. Ensure housing and shaft are clean, free of burrs, and within specified tolerances. ·Wear appropriate personal protective equipment (PPE) such as safety glasses and gloves during installation. 【Application & Limitation Notice】 CAUTION — SELECTION FOR INTENDED USE IS CRITICAL FOR PERFORMANCE AND SAFETY. ·This is a general-purpose bearing for common industrial applications (e.g., motors, fans, conveyors). Verify that operating conditions (speed, load, temperature) are within product specifications. ·Do NOT use in applications beyond its rated limits, such as ultra-high speeds, heavy shock loads, or in the presence of strong chemicals, which can degrade seals. ·The standard operating temperature range for rubber-sealed (2RS) bearings is typically -30°C to +110°C (-22°F to 230°F). 【Lubrication & Maintenance Reminder】 NOTE — PRE-LUBRICATED & MAINTENANCE-FREE UNDER NORMAL CONDITIONS. ·This sealed bearing is pre-lubricated and does not require re-lubrication under normal service conditions. ·Do NOT attempt to wash out the original grease or add new grease by piercing/removing the seals, as this will allow contamination and cause premature failure. ·Regularly inspect for unusual noise, vibration, or overheating. Replace bearings as part of your scheduled equipment maintenance.

• Hybrid ceramic balls reduce friction and weight for smoother rotation and potential efficiency gains.
• Dual rubber seals protect against contamination from dirt and moisture in cycling environments.
• Covers multiple common bearing sizes for versatile use in hubs, bottom brackets, and other components.
• Ideal for riders seeking an upgrade in bearing performance for reduced rolling resistance.
• Two-bearing pack provides a convenient start for upgrading specific points on a bicycle.