Centrifugal Clutch

**Centrifugal Clutch** for **Small Gasoline Engines** — Automatic Belt Pulley Clutch with Multi-Groove Design, Compatible with Lawn Mowers, Tillers, and Generators

（Features）

✦ **AUTOMATIC CENTRIFUGAL ENGAGEMENT**: Engineered with a precision centrifugal mechanism that engages and disengages smoothly as RPM rises and falls — no manual lever or cable required. The clutch automatically transfers power when the engine reaches operating speed, delivering seamless starts and stops every time.

✦ **MULTI-GROOVE PULLEY STRUCTURE**: The integrated belt pulley features multiple V-grooves for secure, slip-resistant power transmission. This design ensures stable belt tracking under varying loads and accommodates a wide range of belt sizes, making it compatible with diverse small engine equipment configurations.

✦ **HEAT-TREATED WEAR-RESISTANT METAL**: Constructed from **heat-treated alloy steel** with a hardened friction surface, the clutch body withstands sustained high-temperature operation without warping or premature wear. The robust metal housing dissipates heat efficiently, extending service life even under continuous-duty cycles in demanding outdoor environments.

✦ **BROAD EQUIPMENT COMPATIBILITY**: Designed as a direct-fit replacement and OEM-compatible component for **lawn mowers**, **mini tillers**, **small generators**, go-karts, pressure washers, and other **small gasoline engine**-driven equipment. The standardized shaft bore and keyway configuration simplifies installation across most popular engine brands.

✦ **SIMPLE INSTALLATION & LOW MAINTENANCE**: The clutch assembly arrives pre-lubricated and ready to mount — slide it onto the engine output shaft, secure with the set screw, and tension the belt. No special tools or professional service required. The sealed bearing design reduces routine maintenance, keeping downtime to a minimum for equipment rental fleets and repair shops alike.

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（Product Description）

The **centrifugal clutch** is a critical power-transmission component for any **small gasoline engine** application where automatic engagement matters. Unlike manual clutch systems that demand operator input, this clutch uses rotational inertia to engage the output pulley precisely when engine RPM crosses a calibrated threshold — and disengages just as cleanly when the throttle drops to idle. The result is smoother operation, reduced driveline shock, and extended belt life across the entire powertrain.

At the core of this assembly is a **multi-groove belt pulley** machined from wear-resistant alloy steel. Each V-groove is precision-cut to standard belt profiles, delivering consistent grip and minimal slippage even under fluctuating loads. Whether powering a **lawn mower** across uneven terrain, driving the tines of a **mini tiller** through compacted soil, or spinning the alternator on a portable **generator**, the pulley maintains reliable torque transfer without belt walk-off or premature groove wear.

The clutch housing undergoes **heat treatment** to harden the friction contact surfaces, giving it the toughness to endure repeated engagement cycles at elevated temperatures. This thermal resilience is especially valuable in enclosed engine compartments where airflow is limited and ambient heat builds quickly. Paired with a sealed ball bearing at the hub, the assembly resists dust, moisture, and debris ingress — common failure points for clutches operating in outdoor and agricultural settings.

Installation is straightforward: the clutch mounts directly onto the engine's output shaft using the integrated keyway and set screw, with no welding, machining, or adapter plates needed. The pulley accepts standard V-belts across multiple groove positions, giving equipment builders and repair technicians the flexibility to align with existing drivetrain layouts. For **landscaping equipment manufacturers**, **agricultural parts distributors**, and **small engine repair shops**, this clutch offers a dependable, drop-in solution that keeps machines running shift after shift.