Standard Motor/Controller Specifications: Power: 110-220VAC 50/60 Hz (Supplied with Standard USA Power Cable) Current: 1.5A Motor Type: Brushed DC Motor Speed: 0-11,500 RPM (Shown as 0-100%) Adjustments: Acceleration and Deceleration Rate, Minimum and Maximum RPM Long Base Rotor Kit Specification: Overall Dimensions: 31” x 4” x 5” (787.4 x 101.6 x 127mm) Weight: 36 Lbs (16.32kg) Max. Distance Between Bearing Stands: 23.25” (590.55mm) Parts Included: 31” Long Base Frame, 2x Sleeve Bearing Stands, 25.25” (641.25mm) Long Shaft, 2x Mass’ (Balancing Wheels), Coupling with Keyway, Single Probe Bracket, Double Probe Bracket, Motor, Controller and Balancing Weight Kit.