Speed reducer increases operational lifeSpeed reducer increases operational life

May 4, 1998

1 Min Read
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Problems such as bearing lock-up and gear wear can cause shaft-mount reducers to fail. The Model FX shaft-mounted speed reducer from Rexnord Corp., Gear Products Div., addresses these problems in order to increase operational life.

"The Model FX was created after a three-year study and development effort which identified major industry needs," says Daniel B. Hoden, sales manager for the Gear Products Div.

"About 80% of shaft-mount reducer failures occur because the bearings lock up," Hoden adds. "People don't bother to lubricate the seal area because grease points are too hard to reach or because it entails removing the entire reducer."

A grease-purgable sealing system cleans dust and dirt that gets into bearings and gears in adverse environments. This allows year-round maintenance and avoids having to rebuild the reducer during the winter.

The FX reducer uses 100% Timken roller bearings on all shafts and American Gear Manufacturers Association (AGMA) Class 12 case-carburized and ground bearings. Other features, such as the small design and front-mounted bushing arrangement, allow the reducer to fit close to the shaft bearing. Larger reducers can cause uneven loading on the shaft, creating bending moments and fatigue. The smallest FX reducer weighs 55 lb.

Applications include conveying systems for cranes; material handling equipment; rock products; mining and process machinery; and food, chemical, and bulk material handling.

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