Deep Groove Pulleys (V-Belt)

All of our V-belt pulleys have standard depth grooves. We aren't big fans of deep groove pulleys because they just mask the underlying problem and deep groove pulleys will eventually show uneven wear if you don't fix the real problem first. Thrown belts are usually caused by mis-aligned pulleys or flexing brackets. Most customers check pulley alignment, but those flimsy OEM and aftermarket Chinese brackets are often overlooked. When you change engine speed quickly, the load on your brackets changes too. If your brackets are flexing then this can leave slack in your belt tension and you'll send belts flying.

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