14mm e-Bike and e-Scooter Wheel hub Motor nut kit – Steel locknut + Safety Washer + Rubber Cap/Washer, Suitable for high-Power e-Scooter and e-Bike axles, can be Fitted with Torque arm

A locking kit specifically designed for 14 mm diameter, high-speed hub motors. Whether you ride a folding electric scooter, a commuter electric bicycle, or a small electric motorcycle, upgrading your motor shaft in just 10 seconds completely solves three common after-sales problems: loose nuts, shaft end corrosion, and dropout wear. 2. Kit Details: High-strength steel locking nuts ×2 (M14×1.5 threads on both sides) Anti-drag washers ×2 2 mm thick stainless steel bushing washers ×2 Oil-resistant NBR rubber dust covers ×2 Portable and space-saving. 3. Core Materials and Craftsmanship: Nuts: 45# steel, integrally cold-forged, 12.9 tensile strength, 8 μm zinc-nickel plating, no red rust after 72 hours of salt spray testing. Washers: 65Mn spring steel, 120° serrated chamfer, providing ≥28 N·m anti-loosening torque. Rubber cover: NBR oil-resistant rubber, does not harden at -40℃ to +120℃, IP54 dustproof and waterproof rating. Busset: 304 stainless steel, CNC machined in one piece, roundness ≤0.02 mm, preventing hard friction between the motor shaft and the frame. 4. Compatible Models (14 mm Axle Diameter) Electric Scooters: 10-inch, 11-inch, 13-inch electric scooters Electric Bicycles: 14-inch 250 W-500 W front/rear hub motors, folding bikes, shared bikes, delivery bikes Small Electric Motorcycles: 135 mm dropout, M14×1.5 threaded hub motor 5. Installation in 4 Steps Remove the old nut and clean the motor shaft threads. First, place the serrated washer → then tighten the steel nut, torque 25-30 N·m. If a wider dropout is needed, insert the 2 mm stainless steel bushing into the right dropout. Snap on the rubber dust cover and tighten – no tools, no glue, and no loosening. 6. Performance Enhancement Anti-loosening: The serrated washer engages the nut with the frame, ensuring zero loosening on 300 km off-road terrain. Rust prevention: Zinc-nickel + rubber double seal, no rust spots on the nut after 6 months of riding at the beach. Abrasion prevention: The stainless steel bushing isolates the aluminum... Dropout prevents motor shaft seizure and extends frame life. Silence: Eliminates clearance between the shaft and frame, reducing bumps and noises for a quieter ride. 7. Technical Parameters Thread Specification: M14×1.5 (commonly fine thread) Across Flats: 17 mm (uses a standard 17 mm open-end wrench) Temperature Range: -40 ℃ ~ +120 ℃ Corrosion Resistance: Neutral salt spray 72 h Applicable Torque: 25-30 N·m (Do not exceed 35 N·m to avoid stripping)