When the helical bevel worm gearmotor and reducer assembly concentricity to ensure a better, the drive motor output shaft is only responsible for the rotation force (torque), running will be very smooth, there is no sense of pulse. And at the same time, the drive motor output shaft also bear the radial force from the input end of the Pc Helical Gear Box (bending moment). The effect of this radial force will cause the drive motor output shaft to be forced to bend, and the direction of the bend will change as the output shaft rotates. If the concentricity error is large, the radial force causes the motor output shaft local temperature to rise, its metal structure is constantly destroyed, will eventually lead to the drive motor output shaft due to local fatigue and break. The greater the error between the two concentricity, the shorter the time the motor output shaft is broken. While the drive motor output shaft is broken, the reducer input also receives radial forces from the output shaft of the drive motor. If this radial force exceeds the maximum radial load that can be tolerated at the input of the gear unit, The result will also lead to deformation of the reducer input or even fracture or bearing support bearing damage.
Therefore, it is important to ensure concentricity when assembling! From the assembly process analysis, if the drive motor shaft and reducer input concentric, then drive the motor shaft and Hypoid Gear Reducer input hole between the surface will be very consistent, their contact surface closely, no radial force and deformation space. And if the assembly is not sympathetic, then the contact surface will be inconsistent or there is a gap between the radial force and to provide a space for deformation.
Similarly, the output shaft of the reducer has a break or bend phenomenon, the reason is the same as the cause of the drive motor. But the output of the reducer is to drive the motor output and reduction ratio of the product, relative to the motor in terms of greater output, so the reducer output shaft is more likely to be broken. Therefore, the user in the use of reducer, the assembly of its output when the concentricity of the guarantee should be paid more attention!