When Installing The Sprocket, How Can One Ensure That The Axes of The Two Sprockets Are Parallel And The Teeth Are Aligned? What Problems Will Occur If The Deviation Is Too Large?

1. Operation Steps to Ensure Axis Parallelism and Tooth Alignment

1. Datumn Positioning: First fix the driving sprocket (usually the one connected to the motor), and adjust the position of the driven sprocket based on its axis. This avoids error accumulation caused by two-way adjustment.

2. Parallelism Measurement: Use a straightedge or laser alignment tool (for high-precision scenarios) to fit the end faces and outer circles of the two sprockets respectively. Observe the fitting gap between the straightedge and the sprockets, or the values of the laser alignment tool, to ensure uniform gaps on both sides without obvious deviations.

3. Tooth Alignment Check: Temporarily mount the chain on the two sprockets and rotate the sprockets for one full circle. Observe the meshing state of the chain on the sprocket teeth. If the chain always adheres to one side of the teeth without deviation or jamming, the teeth are aligned. You can also use a feeler gauge to measure the tooth side gap between the corresponding teeth of the sprockets and ensure consistent gaps.

4. Fixing and Re-inspection: After adjustment, initially fix the driven sprocket, rotate the sprockets again and re-measure the parallelism and alignment. Tighten the fixing bolts completely only after confirmation.

2. Problems Caused by Excessive Deviation

• Accelerated Wear: Non-parallel axes will cause uneven force on the chain and sprocket teeth. The wear rate of local tooth surfaces and chain links will increase, shortening the service life of sprockets and chains.

• Unstable Transmission: When the tooth alignment deviation is large, the chain is prone to "tooth jamming" or "tooth jumping", resulting in uneven transmission speed. This affects the operation accuracy of the equipment and even causes equipment vibration and noise.

• Premature Chain Failure: Uneven force will make the chain pins and rollers bear additional impact force. Failures such as chain link breakage and roller fragmentation are likely to occur, increasing maintenance costs and downtime.