ProTek RC 5x11x4mm Ceramic Dual Sealed "Speed" Bearing (2)

The ProTek RC 5x11x4mm Ceramic Dual Sealed “Speed” Bearing is a two-piece pack of hybrid ceramic bearings designed for R/C racing applications.

Features

• Includes two ceramic bearings
• 5x11x4mm size
• Dual sealed design
• Chrome Steel inner and outer races
• Si3N4 silicone nitride ceramic balls
• Ceramic construction provides reduced friction and vibration compared with standard steel bearings
• Designed for increased RPM capability, corrosion resistance, wear resistance and reduced weight

Proper shimming is important: do not shim the bearings too tight. Keep the bearings lubricated to help ensure long life. Tri-Flow Teflon-based bicycle lubricant is recommended for ceramic bearings.