Heavy-Duty Tensioners

June 17, 2004
Rosta heavy-duty (HD) tensioners self-adjust to correct for belt slippage and stretching, maintaining proper tension in multigroove V-belt drives.

HEAVYDUTY TENSIONERS

This extends belt life and reduces wear and tear on motors and shaft bearings.

The all-steel tensioners are built to customer specifications and work with six to 14-groove pulleys and B to D section belts, or with five to eight V-belt sizes. Tensioners automatically adjust for belt stretch, which is typically about 3 to 5% from new. A special elastomeric element isolates the tension arm from shock loads and resists rotary forces in especially tough processing operations such as aggregate, power, and bulk-food handling.

For example, typical aggregate crushers sync two motors together and rely on a V-belt to keep an even current flow, which is an ideal application for the tensioners. Rosta HD tensioners are easy to install and maintenance-free over a projected 10-year life in most applications. They are designed to work with motor drives of 200 hp or greater. Smaller versions are also available.

Lovejoy Inc.,
2655 Wisconsin Ave., Downers Grove, IL 60515,
(630) 852-0500,
www.lovejoy-inc.com

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