36T Planetary Gear Clutch Kit 608Z Bearing for 250W E-Bike

3-Piece 36-Tooth Planetary Gear Clutch Kit for 250W E-Bike Motors

Keep your electric bicycle running at peak performance with this durable 3-piece (1 set) 36-tooth planetary gear clutch kit. Engineered for 250W mid-drive hub motors, this replacement kit pairs heavy-duty PA66 nylon gears with precision 608Z bearings and an 88mm steel clutch — a reliable drop-in upgrade over worn metal solid gears.

Key Features

• High-Strength PA66 Nylon Gears: 36-tooth design delivers excellent mechanical strength, outstanding toughness, and long-lasting durability in demanding cycling conditions.
• 608Z Precision Bearings Included: Each gear comes pre-fitted with a 608Z bearing for smooth, low-friction rotation and stable power transfer.
• Steel Clutch (88mm): The included steel clutch shell provides a rigid, reliable housing that resists wear and maintains structural integrity over extended use.
• Direct Replacement for Metal Solid Gears: Designed to replace factory motor metal solid gears on most 250W e-bike mid-drive transmission systems — no modifications required.
• Stable Structure & Excellent Performance: Combines high reliability with a consistent, quiet gear mesh for a smooth riding experience.
• Complete Kit: Includes 3 × 36T nylon gears with bearings + 1 × 88mm steel clutch — everything you need for a full gear set replacement in one package.

Specifications

Package Includes

• 3 × 36-Tooth Nylon Planetary Gear with 608Z Bearing
• 1 × 88mm Steel Clutch Shell

Important Notes

• Please refer to the specification table for dimensions — product photos are not to scale.
• Minor measurement differences may occur due to manual measuring methods.
• Actual color may vary slightly from images due to monitor calibration differences.
• Verify your motor model and gear tooth count before purchasing to ensure compatibility.

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Frequently Asked Questions

Q: What motors is this 36-tooth planetary gear clutch kit compatible with?

A: This e-bike planetary gear clutch kit is designed for use with 250W mid-drive hub motors commonly found on electric bicycles. It replaces the original metal solid gears in the motor's gear transmission system. Please confirm your motor's gear tooth count (36T) and clutch diameter (88mm) before ordering to ensure a proper fit.

Q: Why choose nylon planetary gears over the original metal solid gears?

A: PA66 nylon gears offer excellent mechanical strength combined with superior toughness and reduced noise compared to all-metal solid gears. The nylon construction helps absorb minor vibrations for smoother power transfer, while the pre-installed 608Z bearings ensure consistent, low-friction rotation — extending the overall service life of your motor's drivetrain.

Q: Are the 608Z bearings already installed in the gears?

A: Yes! Each of the three 36-tooth nylon gears comes pre-fitted with a 608Z precision bearing, so the kit is ready to install right out of the box. No additional bearing press or separate bearing purchase is needed.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.