variable speed gearboxes

Input Coupling Improves Worm Performance

Worm gear speed reducers are used in a variety of applications because of the many advantages they offer. These include a compact design, with high ratios possible in a single stage, a right angle configuration that allows for shaft mounting and tucking the motor up next to the machine frame, and a relatively low cost compared to other gear technologies. They do have certain disadvantages, however, as they are relatively inefficient, and even more so when run slowly or started and stopped frequently. It's the give and take of these characteristics that determine if a [...]

Dual Input Gearbox Provides Dual Output Speed Solution

By Jeff Gibbons|2025-11-12T20:42:05+00:00February 19th, 2018|Application Examples|

There are a lot of processes that require continuous, smooth running, rotary motion. But sometimes two different speeds are necessary. Inverters or servo gearheads can’t always deal with the differences. In a lot of applications, variable speed can be accomplished with an inverter. By varying the hertz a motor can operate at a relatively wide speed range. However, when running above 60 Hz there is usually a drop off in output torque. And when the hertz drop below 20, in many instances additional cooling is necessary because the fan isn’t turning fast enough. And when [...]