KingVal Replacement Metal RC Motor Shaft Pinion Gear Reducer Sleeve Adapter Coupler Compatible with 5mm to 3.175mm (1/8") Bore 550 540 3650 Series RC Motors

The pinion gear with coupler can convert 5mm pinion reduction to 3.175mm, so this product is for series motors such as 550 540 3650 with shaft diameter of 3.175mm. Make 5mm pinion gear work with 3.175mm (1/8 inch) shaft motor. Pinion reducer sleeve inner diameter: 3.175mm (1/8 inch), outer diameter: 5mm, length: 12mm. High precision machining, stable and reliable Easy to install and remove. Package includes: 3 sleeves, 1 L Allen key, 3 screws (Please note that the pinion gear and motor in the picture are not included).

Features: Durable and lightweight. Easy to install and remove. High precision machining, stable and reliable. Specification: Material: Steel Inner diameter: 3.175mm. Outer diameter: 5mm. Length: 12mm. Package Contents: 3 x Sleeve Screws. 1 x L Allen Key.