R&D 910-037 Flexible Coupling for Yanmar Gearbox

Flexible Coupling for Propeller Shaft

This durable flexible coupling is crafted by R&D Marine and is designed to fit seamlessly between your boat's propeller shaft coupling and the Yanmar KM gearbox output. The innovative design features a contoured flexible disc made from robust Polyester Elastomer, allowing it to absorb engine and propeller shaft misalignments due to vessel movement or flexing. It efficiently manages thrust in both forward and reverse, ensuring reliable operation.

Gearbox Flange Specifications

• Diameter: 130mm (5.12")
• Number of flange bolts: 4
• Coupling bolt hole diameter: 12.3mm (0.48")
• Bolt PCD: 107.9mm (4.25")
• Coupling register diameter: 63.5mm (2.50")

Flexible Coupling Features

• Maximum coupling diameter: 143.0mm (5.63")
• Length: 51.1mm (2.01")
• Bolt diameter: 7/16" UNF
• Power capacity: 9.69kW (13HP) at 100 RPM
• Compatible with Yanmar (Kanzaki) Gearbox models: KM40, KM5, KMH50 with a 5.5" coupling flange
• Electrical properties: Non-conducting as standard
• Earth bonding strip: 807739

Specifications