Power Tool Consumables -Ball Bearing 775 Highlights Generic Brand Ball Bearing 775 Description: Stable and reliable performance Easy disassembly type Excellent quality and long service life Micro, compact and lightweight Save electricity Protection of environment Application: car wash pumps, sprayers, electric fans, toys, juicers, shredders, toys, vacuum cleaners Specification: Material: Alloy Color: Silver Shaft diameter: approx. 5mm / 0.2inch Shaft Length: Approx. 18mm / 0.71inch Body Length: Approx. 70mm / 2.76inch Body Diameter: Approx. 42mm / 1.65inch Motor Overall Length: Approx. 98mm / 3.86 inch Speed: 12000R/min Rated voltage: 12V Rated power: 100W Rated current: 1.2A Package includes: 2 pieces 775 motors battery. Apply to the drill, the speed should not be too fast, otherwise produce smoke, etc. Pls allow 1-3mm error due to manual measurement difference.