Motor Weight: 5.97oz. (169g) * Bearing: Standard 3/8" x 1/8" * Shaft Diameter: 0.125" (3.2mm) accepts all 1/8" pinion gears * Motor Size: 2.07 x 1.42" (52.7 x 36.1mm) * 120 day limited warranty through Novak beginning at date of purchase