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Inclined Conveyors

Application

Inclined conveyors

Issue

Gearbox failure

Description

A significant amount of airborne contaminants can be found where aggregate, on its way to reprocessing, is transferred onto an inclined conveyor. In addition to this, shock loads on gearboxes are common as the material is dropped onto the conveyor belt.

A major aggregate quarry has used a competitor's "AGMA-size 215" shaft-mounted drive on an inclined conveyor application in the past. Two years ago, they had to replace this unit after discovering excessive oil leakage from the input and output shaft seals. Upon closer inspection, metal filings were discovered in the oil, indicating internal gear wear. At that time, a local repair facility provided a rebuilt unit at approximately half the cost of a new one. After only eight months in service however, similar problems were encountered on this unit.

Solution

TorqTaper®Plus 215SMTP15 reducer and accessories. The unit was chosen due to its patented barrier seal system, quality gears, higher torque ratings, tapered roller bearings and warranty

Result

The SMTP unit was chosen due to its patented barrier seal system, quality gears, higher torque ratings, tapered roller bearings and warranty. Although the upfront cost for the SMTP was higher versus the rebuilt unit, the aggregate producer realized a long-term cost savings due to increased uptime and greatly reduced maintenance costs.