Why cloth buffing wheel slips on bench grinder?

A cloth buffing wheel may slip on a bench grinder due to insufficient tightening of the wheel onto the spindle, causing it to lose grip during operation. Additionally, if the wheel is worn out or has a larger diameter than the grinder's spindle, it may not fit securely. Dust, debris, or improper alignment of the wheel can also contribute to slippage. Ensuring proper installation and maintenance can help prevent this issue.