1) 42mm high voltage RS-7724 dc motor Encoder possible Internal capacitors Voltage and speed adjustment by winding change Modification of shaft length Modification of shaft configuration (flat, hole, knurling, rear shaft etc.) Assembly of gears, vibrators, pulley, etc. Ball bearing available. 2) other customization of  42mm high voltage RS-7712 dc motor Metal end cover or plastic end cover 3) slots or 5 slots rotors, rotor can be oblique. Motor rotation: CW or CCW Motor Flux ring thinkness can be made by special. Motor Connector can be available. Specification The following parameters are for reference only, we can customize parameters according to customers’ requirements. Model Voltage (V) No Load At Maxi. Efficiency Stall Operating Range Nominal Speed (rpm) Current (A) Speed (rpm) Current (A) Torque (gcm) Output (W) EFF (%) Torque (gcm) RS-7524SM-12130 100-120 220 CONSTANT 22500 0.25 17000 0.88 706 127.0 51.7 3200 RS-7724SM-09215 90-150 110 CONSTANT 3000 0.05 2300 0.17 366 8.7 52.0 1500 RS-7724SM-17116 100-240 230 CONSTANT 18200 0.13 15680 0.80 900 145.0 64.2 6500 RS-7724PM-7AC11 230-280 230 CONSTANT 20500 0.30 19000 0.60 750 155.0 55.2 5000