Baldor to show motorised version of Torque-Arm II at Hillhead
18 March 2010
A motorised version of the Dodge torque-arm shaft-mounted speed reducer from Baldor Electric will make its European debut at the Hillhead show this month. The compact and robust speed reduction unit complements the Dodge belt-driven speed reducer range.
A motorised version of the Dodge torque-arm shaft-mounted speed reducer from Baldor Electric will make its European debut at Hillhead 2010. The compact and robust speed reduction unit complements the Dodge belt-driven speed reducer range.
The Dodge Motorized Torque-Arm II (MTA) shaft mounted speed reducer is a right-angle gearbox with an IEC flanged motor interface, specified for use with two-pole or four-pole motors. A choice of 12 helical gear reduction ratios and three case sizes allows the unit to deliver a wide range of speed reductions from 18:1 to 75:1 for class 2 applications from 1.5 to 55 kW, with efficiencies of up to 95%.
The reducer is rated to meet the 6010 AGMA (American Gear Manufacturers Association) standard, which specifies a 5,000 hour bearing life - approximately twice as long as comparable DIN design specifications.
Numerous other reliability-enhancing features include the use of heavy-duty tapered roller bearings instead of ball bearings, and a novel input pinion shaft with straddle-mounted bearings on both the motor and gearing sides. This latter construction combats any overhang stress resulting from a poorly mounted motor, and additionally allows the gearbox to be offered in a sealed form that protects the gears against any contaminants during any installation or maintenance operations at the motor input.
Premium HNBR (hydrogenated butadene nitrile rubber) seals are fitted as standard for extra protection, and the MTA is designed to be used with Dodge twin tapered bushings - a patented design that provides a sturdy, concentric grip of the driven shaft on both sides of the reducer. This eliminates the wobble and fretting corrosion normally associated with single-bushed shaft mounted reducers.
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