Bison Gear's permanent magnet DC gearmotors offer a full-featured integral speed control option
Bison Gear and Engineering introduces six standard models of parallel-shaft permanent magnet DC gearmotors with continuous torque ratings from 30 to 500 inch-pounds (3.4 to 56.5 N-m). The VWDIR134 DC gearmotors are available with 1/10- or 1/11-horsepower (74.6- or 67.8-watt) 90-volt brushed DC electric motors. The compact, integral gear reducers feature hardened steel helical and spur gearing for efficiency and durability, with ratios ranging from 10:1 to 266:1 and corresponding fixed output speeds from 152 to 6 RPM. The gearmotors feature built-in face mounting, compatible with Von Weise Genesis mounts, and offer overhung load (OHL) capability of 300 pounds (136.4 kg.). For added versatility, these gearmotors also accept the Bison TightDrive speed control.
Bison Gear's TightDrive motor-mounted speed control can be installed on the rear of the VWDIR134 gearmotors and offers a speed range of 20:1. The TightDrive is housed in an aluminum extrusion which offers NEMA 1 (IP 30) protection and heat dissipation. Speed is controlled with a combination on/off switch and speed potentiometer. In addition, three adjustable potentiometers provide settings for minimum RPM, maximum RPM and current limiting. The SCR control architecture also provides tighter speed regulation than alternative controls.
The TightDrive is designed for 115-volt 50/60-Hz operations and comes complete with a three-foot (0.9-meter) power cord and an NEMA 5-15P plug. Users can mount the drive directly to the motor in 90° increments to optimize position of cord exit and motor leads.
The VWDIR134 DC parallel-shaft gearmotors are designed for high-torque commercial, industrial and agricultural applications.