Peak Shaver Safety Hub

Drop in replacement for traditional coupling hub that protects machinery against torque spikes and provides equipment with the ability to drive through transients allowing for critical processes to continue.

The Riverhawk Peak Shaver is a hydraulically activated device that becomes part of a complete coupling system. It works with a flexible coupling to help protect machines from transmitting unwanted forces. The device can either be mounted on the shaft where it would replace a hub or it can be mounted between shafts as a spacer piece. Under normal operating conditions, the peak shaver transmits 100% of the shaft power from the driving shaft to the driven shaft, providing protection when one of the machines experiences a sharp spike in torque. When a spike occurs, the internal mechanism will slip relative to one another allowing the two shafts to continue their rotation. After the torque spike has passed, the device will re-grip, continuing to transmit normal torque load.

• Prevents damage due to torque spikes
• Reduce cost and size of original equipment
• Drives through torque spikes
• Automatic Re-Grip
• Simple, Compact and Power Dense
• Minimal Reset Time Results in Minimum Loss of Production

Frame Sizing & Capacities

Frame SizeMax Shaft Diameter (in.)Maximum Static Protection (TPT) Torque (in-lb), 1
11.7523,000
2235,300
32.2550,300
42.569,000
52.7591,900
63119,000
73.25152,000
83.5189,000
93.75233,000
104283,000
114.25339,000
124.5403,000
135552,000
145.5735,000
156954,000
166.51,210,000
1771,520,000
187.51,860,000
1982,260,000
208.52,710,000
2193,220,000
22104,420,000
23115,880,000
24127,630,000