How to determine the installation direction of ZSY gear reducer backstop

1、 Core benchmark judgment rules

Rotation matching principle: The backstop can be divided into two types: clockwise (S) and counterclockwise (N), which should fully correspond to the actual normal working rotation direction of the high-speed shaft of the reducer. For example, when driving an upward belt conveyor, the counterclockwise (N) model should be selected. Incorrect installation of the clockwise model will directly cause the reverse function to fail.

Steering arrow verification: The surface of the reverse gear housing is usually engraved with clear steering identification arrows, which should be consistent with the normal working direction indicated on the gearbox nameplate. You can refer to the mnemonic "Working rotation direction arrow, reverse self-locking without worry".

Unified perspective standard: Based on the observation perspective directly facing the output shaft end of the gearbox, determine the direction of rotation to avoid misjudgment caused by different observation angles.

2、 Practical verification method

Manual idle test: Before installation, rotate the inner ring of the backstop by hand to confirm that its free rotation direction is consistent with the normal working direction of the reducer, and that the anti reverse locking direction matches the reverse direction after the equipment is stopped.

Pre confirmation of shaft steering: Power on the reducer to confirm the actual rotation direction of the high-speed shaft, and then select the corresponding reverse stop that matches the rotation direction to avoid deviation based solely on the drawing identification.

3、 Key points for verification of installation direction matching

Coaxiality requirement: After installation, confirm that the coaxiality error between the backstop and the high-speed shaft is ≤ 0.1mm to prevent eccentricity from causing operational jamming or abnormal vibration.

Compliance with force direction: During installation, only apply pressure to the inner ring of the backstop, and it is strictly prohibited to hammer the outer ring to avoid misalignment of the internal wedge or roller structure that may cause directional function failure.

Condition adaptation review: If there is a need for forward and reverse operation of the equipment, conventional one-way check devices cannot be used, otherwise faults such as jamming and locking may occur.