Precision taper contact verification tools for coupling hub and shaft installation.

Plug and ring gauges are used to ensure the taper of a hub and shaft have proper contact to allow torque transmission. Once the ring and plug match, they confirm the hub and shaft have the same taper.
Riverhawk supplies plug and ring gauges to match OEM specifications for any coupling application. Proper taper contact is essential for reliable torque transmission and long-term equipment performance.
Our engineers are available to assist with product selection, sizing, and custom configurations.