Spring-Loaded Belt Tensioners

Correct operating tension is a critical factor in the satisfactory performance and life of a belt or chain drive. As V-belts wear they seat themselves deeper in the sheave grooves. This seating along with belt stretch lessens the original tension. The result is slippage and loss in horsepower capacity unless some form of take up is used to restore and maintain original tension.

The spring-loaded belt tensioner, featuring an aluminum, nylon, and zinc-plated steel roller with a ball bearing, automatically keeps tension constant. As chains wear, they elongate, which results in sway and increased vibration. This puts undue shock into the drive and increases bearing wear.

Spring-loaded chain tensioner

A spring-loaded chain tensioner, featuring a steel sprocket with a ball bearing, automatically keeps tension constant.

Both V-belt and chain drives wear at an increased rate if allowed to run with insufficient tension. Adjustment of center distance is the best method of maintaining proper tension. In cases of fixed centers, drive tighteners and idlers provide the necessary means of take-up. For more information click here

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