The Extreme-Duty Sprocket Centrifugal Go Kart Clutch is designed to tolerate the excessive heat that can be generated by: • inexperienced riders, • riding with one foot on the brake, • riding in soft dirt and tall grass, • frequent starts and stops. (read more)

All Formsprag/Stieber clutches described in this catalog are essentially “overrunning” clutches, i.e., they will drive in one direction but overrun (freewheel) in the other direction.Through the wide variety of designs offered by Formsprag Clutch and Stieber Clutch in both Sprag and Ramp & Roller Designs virtually any application can be met where this function is required. (read more)

These clutches are normally mounted on small gas or diesel engines (10 - 35 horsepower). Coils are normally 12 volts but 24 volt can be an option. Clutches are typically mounted directly on an engine. All clutches have e-coat protection to allow them to withstand typical external environmental exposure. Custom flanges and/or pulleys can also be manufactured. (110 - 350 pound feet of torque) (read more)

A Mini Centri-Sifter™ centrifugal sifter for screening small batches of pharmaceutical powders, powder coatings, food products, and other contamination-sensitive materials, allows rapid disassembly and thorough wash down. (read more)

SDP/SI stocks over 194 Mechanical Clutches, Electromagnetic Clutches, Roller Clutches, magnetic clutches,... (read more)

The Hilliard Linkless Centrifugal is unique within its design.

The combination of a dowel pin system and the symmetrical spring design allow for a long life and an economical solution to meet your power transmission needs. (read more)

Through the wide variety of designs offered by Formsprag Clutch and Stieber Clutch in both Sprag and Ramp & Roller Designs virtually any application can be met where reciprocating motion applied to the driving race is transformed into intermittent motion in only one direction at the driven race. (read more)

Welcome to Autotronics, Inc.

We Are Your Source for Precision Miniature Electro-Magnetic Clutches, Brakes, Clutch Brakes, Solenoids, and Torque Measuring Instruments.

Autotronics, Inc. is a woman-owned small business corporation founded in 1956.

Pancake Brakes & Clutches. (read more)

Huco Vari-Torks are rotary friction devices with adjustable drag or slip torque. Controlled slip takes place between the hub and housing whenever the load exceeds the set torque. Hub to shaft connection is greatly simplified by the new clamp fastening styles. (read more)

Hilliard torque limiters and couplings are designed to slip during a torque overload, while still transmitting the adjusted torque. They provide dependable solutions to the problems of torque control and overload protection in power transmission equipment. (read more)