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Traction drives depend upon friction between a speed adjusting mechanism and specially shaped input and output plates to achieve adjustable speed with relatively high efficiency. In one common type of traction drive, the motor drives an input cone that transmits the power from the cone to an output ring connected to the output shaft. The speed adjusting screw moves the motor and input cone up and down changes the point of contact between the cone and ring changing, the speed ratio of the drive as much as 10:1. With another common type of traction drive, a series of balls mounted on tiltable shafts press upon the faces of the input and output cones. A speed adjusting lead screw tilts the ball shafts to increase or decrease the effective speed ratio of the drive transmission by as much as 8:1. Traction drives are best suited for applications with steady state loading. Products & Services
Adjustable speed drives alter the speed of a driven shaft to a speed selected by an operator.
Variable transmissions are used in industrial applications to alter the speed of an output shaft.
Gearboxes and gearheads are speed reducers that consist of a set of gears, shafts, and bearings in an enclosed housing. In converting inputs to outputs, they reduce RPM and increase torque.
Traction and tension dynamometers are used to measure force in tension, traction and weighing applications with cables, guy wires and chain.
Hydraulic brakes are assemblies consisting of elements for the slowing or stopping of shafts in equipment drives.
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Topics of Interest
Speed reducer is termed a gearhead if it is entirely and directly mounted onto a motor, not just the shaft. Therefore, other speed reducers (gearboxes) are typically coupled with the shaft and then...
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Absorption: The portion of optical attenuation in an optical fiber resulting from the conversion of optical power to heat; caused by impurities such as hydroxyl ions in the fiber.
A/B Switch: A...
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Planetary gears are a gearset in which all of the gears are in one plane and grouped around each other like the planets around the sun. Planetary reducers can be designed with gear sets or a set of...
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Hydraulic drives are used to hydraulically vary the speed of the driven load when the driving motor is operating at a constant speed. There are two main methods of operation: fluid coupling and...
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Glossary of Terms Backlash: Rotational (arc) movement due to clearance betweeen transmission elements. In reducers, upon reversing direction of the input shaft, there is no immediate rotation of the...
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