SPI 09-B041 Namura Piston Pin Needle Bearing 12x15x14.5mm

The SPI 09-B041 is a high-quality piston pin needle bearing manufactured by Namura Technologies, designed to deliver superior performance and durability in demanding powersports applications. This precision-engineered wrist pin bearing measures 12mm inner diameter x 15mm outer diameter x 14.5mm length, making it a direct OEM replacement for various motorcycle and ATV applications.

Key Features:

• Manufactured from SCM415 chromoly steel for exceptional strength and durability
• Carbonnitriding heat treatment enhances fatigue strength and heat dissipation capacity
• High-rigidity cage design withstands extreme stress from varying RPMs and engine impact forces
• Precision dimensions: 12mm ID x 15mm OD x 14.5mm length
• Direct OEM replacement quality at an affordable price

Namura Technologies piston pin bearings are critical components that transmit explosive combustion forces from the piston crown to the connecting rod and crankshaft assembly. The advanced carbonnitriding treatment process creates a hardened surface layer that resists wear while maintaining a tough core, ensuring reliable performance under the most demanding riding conditions.