adjustable speed drives, electric motor drives, power transmission dirves

Graham Transmissions, the most recognized name in metallic traction drives, has perfected the Ring-Roller over the last 55 years.

Micrometer Handwheel Control on Unit or Remote

Unmatched Accuracy

Overload Protection

Wide Choice of Controls

Linear Speed Setting Mechanism

Torque Producing Elements Operate in the Presence of Traction Lube in Sealed Housing

Infinite Speed Range, Forward and Reverse

Full Torque Available to Zero RPM

Employs Compound Planetary Gear System With Control Ring and Tapered Rollers

Oil Lubricated and Cooled

Completely Mechanical

Wide Choice of Input Configurations, Motorized or Non-Motorized

Wide Choice of Output Configurations Including Speed Reducers and Increasers

Output Torques Up to 8000 in. lbs.

To purchase a Ring-Roller traction drive, replacement parts or repair service, contact...

Motor Specialty
2801 Lathrop Ave. • Racine, WI 53405
262-632-2794 • Fax: 262-632-8899
E-mail: sales@motorspecialty.com

Customer Service hours are 8:00 am to 4:30 pm central time zone.