CYLINDRE ALUMINIUM 52MM - GY6 50 (139QMB)

TECHNICAL FEATURES

Cylinder

• Material: primary aluminum alloy with a high content of hardened and tempered silicon, cylinder liner with silicon carbide coating in a galvanic nickel die and crossed smoothing with two diamond passages with very limited tolerances.
• Machining: on machine tools with high precision numerical control.
• Cylinder-piston connection with an allowance of 0.05 mm.
• Recalculated and upgraded heat exchange surfaces.

Piston

• Ultra-compact with 3 rings.
• Material: special aluminum alloy with high silicon content, low thermal expansion and a tin facing on the sliding surfaces.
• Machining on machine tools with numerical control.
• Lightened and reinforced.
• Upgraded heat exchange surfaces.

Piston rings

• Compression - special rings with high sliding ease and very high mechanical resistance, in chromium-plated S10 spheroidal cast-iron.
• 1st scraper - ring in chromium-plated S10 spheroidal cast iron.
• 2nd three - piece scraper ring made of chromium-plated steel alloy.