Sprocket Clutch, #40 Chain, 5/8" Bore

Sprocket Clutch, #40 Chain, 5/8" Bore

The 255-117 Sprocket Clutch is a rugged, weldless centrifugal clutch sprocket built for dependable engagement in small engine and power transmission setups. Designed with a 5/8 in. bore and grooved keyway, it installs easily with no adjustment required and operates non-directionally (inboard or outboard). Featuring an Oilite bushing, sintered metal shoes, and a stainless steel garter spring, it’s made for consistent performance and long service life on #40/#41 chain applications.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 255-117
• Product Type: Sprocket clutch (centrifugal clutch)
• Chain Compatibility: #40 / #41 chain (Chain Number: 41)
• Teeth: 10
• Bore Size: 5/8 in.
• Keyway: Grooved
• Keyway Width: 3/16 in.
• Bushing Type: Oilite bushing
• Shoe Material: Sintered metal shoes
• Spring: Stainless steel garter spring
• Construction: Weldless
• Adjustment: No adjustment required
• Rotation / Mounting: Non-directional (inboard or outboard)

Ideal For

• Go-karts, minibikes, and utility equipment using #40/#41 chain drive systems
• Replacing worn centrifugal clutches with a no-adjustment design
• Builds needing flexible mounting with non-directional inboard/outboard capability
• Applications benefiting from Oilite bushing support and durable sintered shoes
• Setups requiring a 5/8 in. bore with a 3/16 in. keyway