Namura Technologies 09-B081-1 Wrist Pin Bearing - 21x25x23.8mm

The Namura Technologies 09-B081-1 is a precision-engineered wrist pin bearing designed to transmit explosive combustion forces from the piston crown to the crankshaft assembly. With dimensions of 21mm inner diameter, 25mm outer diameter, and 23.8mm length, this needle bearing is a critical component in high-performance engine rebuilds.

Premium Construction Features:

• Manufactured from SCM415 Chromoly Steel for superior strength and durability
• Carbonnitriding heat treatment process enhances fatigue strength and heat dissipation
• High-rigidity bearing structure withstands extreme stress from varying RPMs and combustion impact
• Electroplated silver-coated cage resists erosion and reduces friction
• Dual-layer copper and silver coating increases assembly life and reliability

The advanced cage coating technology decreases friction between the cage and needle bearings, resulting in extended service life and improved reliability under demanding operating conditions. Ideal for motorcycle, ATV, and powersports engine applications requiring precision top-end components.