Torque Limiter

Torque Limiter

• Torque Limiter has been designed to protect the drive system from unnecessary overload.
• Available size RTL50, RTL65, RTL89, RTL127, and RTL178.

All About Torque Limiter

• Torque Limiter has been designed to protect drive systems from unnecessary overload.
• When too much torque is transmitted through a drive, the Torque Limiter automatically slips on its shaft when a predetermined torque level is reached.
• This device is suitable in situations where there are excessive and unpredictable shock loads, overloads, or machine jams.
• When the problem in the system is overcome or removed, the Torque Limiter automatically reengages, unlike other devices, such as those with shear pin mechanisms, which have to be manually reset.
• Torque Limiters not only prevent damage to drive systems but also eliminates unnecessary downtime due to system resets.
• The Torque Limiter utilizes spring-loaded friction surfaces, the slip torque is preset by the adjustment of the spring force, this is as simple as tightening or loosening the appropriate nut or bolt.

About Selection

• Determine the required slip torque from the loading conditions or from the design strength of the machine.
• If the loading conditions of the machine are unknown, set the required slip torque of the torque limiter to 1.5-2 times the torque that the motor produces on the shaft where the torque limiter is mounted.
• Select a Torque Limiter that has enough torque range and bore range.
• Determine the proper bushing length from the thickness of the centre member to be inserted between the friction facings.
• Always choose the largest bushing which does not exceed the width of the centre member, shown as S Max in the dimension table.