The 90-volt SCR gearmotors from Leeson are performance matched for continuous duty service over a 60:1 speed range. The company's low-voltage gearmotors are also performance matched for continuous duty. All have constant torque throughout the range when powered by a full-wave unfiltered SCR-type 115 volt input adjustable speed control having a typical form factor of 1.3 to 1.4. The motors are designed for battery power, however they can be used with a low-voltage controller.

Leeson Electric; 262-387-5214;