Zero-Max Overload Clutches & Torque Limiters

Torq-Tenders
Torq-Tenders are Overload Safety Devices which provide reliable overload protection. When a jam-up or excessive loading occurs the Torq-Tender will reliably and quickly release to prevent system damage.

Features and Benefits:
- Available in torque settings from 3 lb-in to 3,000 lb-in and bore sizes from 0.250” to 1.750”
- Tamper-proof, enclosed design
- Maintains factory torque value, costly and potentially risky calibration procedures are not necessary
- Able to operate in a wide variety of industrial environments
- Torque value can be changed in the field by disassembling the unit and replacing the springs.
- Bi-directional and uni-directional designs available:
- Release at the same torque in each direction (standard configuration)
- Release at a different torque in each direction
- Positive drive in either direction
- Made from durable heat treated steel for long operation life
- Multiple mounting configurations available:
- Shaft-to-Shaft (Inline): Torq-Tender has the functionality of a flexible shaft coupling (will handle shaft misalignment of up to 0.015” (depending on model) parallel and up to 1.5 degrees angular)
- Through-Shaft: A shaft passes through the full length of the Torq-Tender, a sprocket or sheave mounts externally (bronze bushing supports the side load from the mounted component)
- End of Shaft: Designed for shafts that are not long enough to extend through the full length of the unit (available with face mounting or hub mounting for sprockets, pulleys, etc.)
H-TLC Torque Limiters

- Durable design resistant to water, salt, mild acid, and other pollutants in temperatures from -40°F to +180°F
- Unlike friction-type designs, the H-TLC does not generate heat or react to lubricants, maintaining precise disengagement even when submerged in oil or after multiple disengages
- Torque setting is adjustable via external compression bolts
- Available with a simple and inexpensive actuating disk which can trigger an automatic warning or power shutdown the instant an overload condition is reached
- Available with multiple (4 or 6 depending on model) re-engagement points or as a single position re-engagement unit for systems which must remain “in phase”








