POM Piston Head with Bearing

Ventilated piston head made of durable and lightweight POM (polyacetal) thermoplastic. Designed for cylinders with a standard diameter. 

POM material is characterized by high abrasion resistance, stiffness and natural lubricity. 

Features: 

• Made form high quality thermoplastic 
• High precision and machining 
• O-ring, good leakproofness, smooth performance 
• High flow capacity design 
• Fits all gearboxes 
• Comes with ball bearing 
• Material: POM 
• Weight: 12g