Tulsa Winch produces worm gear winches commonly installed on large oilfield trucks, heavy haul tractor packages, digger derricks and aerial work trucks. (read more)

Model HP double-enveloping worm gear speed reducers are designed for all applications that require extremely high torque and accuracy in a quiet, compact package.

Model HP speed reducers have higher shock resistance, greater endurance to withstand heavy starting and stopping loads, and can easily transmit two to three times as much torque as cylindrical worm gearing. (read more)

For decades, industries have relied on the proven technology of Boston Gear 700 Series worm gear technology for long-lasting, high-quality performance. The new Stainless Steel 700 Series takes that trusted performance to new levels by providing maximum corrosion resistance in challenging, caustic washdown environments in the food and beverage industry. (read more)

Boston Gear is pleased to announce the launch of the NEW Stainless Steel 700 Series worm gear speed reducer product offering. Blending the trusted 700 Series worm gearing with an innovative exterior design, the NEW Stainless Steel 700 Series provides the trusted performance your customers have come to expect from Boston Gear Speed Reducers! (read more)

Pinch roll reducers use one worm on the power input shaft to turn two gears simultaneously, in opposite rotations.

Pinch roll reducers are designed for applications such as cold-roll forming, tube mills and wire mills, where very high torque is needed to smoothly propel metal through high pressure mill rollers. (read more)

The 700 Series worm gear reducers product line has been enhanced with a patent pending internal pressure equalization system. This specially designed system allows the gearbox to operate in any environment without the use of conventional pressure vents. (read more)

Extruder Drive Reducers are designed for screw pressures up to 10,000 P.S.I. or 68,948kPa. The thrust bearing on the output shaft will provide capacity to take the screw thrust directly without additional external bearings. (read more)

SW-5 Custom Worm Gear Speed Reducers are similar except for the bearings and lubrication. The bronze gear reducers are 5-1/2" high x 7-3/8" wide x 5-9/16" or 5-1/8" deep overall. The net weight is nine pounds. (Weight may vary according to ratio.) Both Models are available in ratios from 5:1 to 100:1 (read more)

Versatile Joyce Machine Screw Jacks lift and precisely position all kinds of loads from 250 lbs. to 250 tons. Upright or inverted, these precision jacks operate at full capacity whether the load is in tension or compression. WJ series single lead jacks are self locking under full lifting capacity, while DWJ double lead series jacks offer increased travel speed. Heat treated alloy steel worm sha... (read more)

Torque Transmission has a gear drive to fit your needs. If we don't, we'll modify or custom design a economical speed reducer for your application. (read more)