SHENZHEN DONGMING MOTOR CO., LTD.
42mm dc brushless gear motor mainly including 42RPBL4250 and 42RPBL4260
Since spur gearbox or worm gearbox has a limited lifespan, and brushless motor can achieve more than 2000 continuous hours, so we merely use dc brushless motor with spur gearbox.
42RPBL4250 and 42RPBL4260 are both dc planetary gear motor, the available gear ratio including: 3.7, 5, 13, 18, 25, 49, 67, 92, 125, 181, 246 etc
Brushless motors are typically 85-90% efficient whereas brushed DC motors are around 75-80% efficient. This difference in efficiency means that more of the total power used by the motor is being turned into rotational force and less is being lost as heat.
Brushless DC motors have many advantages over their brushed DC motor counter parts. The most obvious advantage of a brushless motor is its lack of brushes and physical commutator. This difference means that there are many fewer parts that can wear out or break and need to be replaced than in a brushed motor.