Varco
Knurled roller for Varco ST 80
This knurled roller is designed for use in the jaw assemblies of Varco ST80 hydraulic pipe handling tongs. It provides the necessary friction for secure pipe gripping during drilling operations, identified by part number 30160614.
Compatible models
Specifications
- Part number
- 30160614
- Brand
- Varco
The knurled roller is a mechanical component integrated into the gripping system of hydraulic power tongs. Its primary function is to establish a secure contact point with the surface of drill pipe, casing, or tubing during make-up and break-out operations. The surface of the roller features a specific knurled pattern that creates the friction required to prevent slippage when the tong applies torque to the pipe string.
This component is compatible with the Varco ST80 model. It functions as a replaceable insert within the tong jaws, where it directly engages the pipe to facilitate rotation. Regular inspection of the knurling is necessary to ensure the roller maintains its intended grip profile, as wear on the teeth can reduce the effectiveness of the clamping force applied by the hydraulic system.
In drilling equipment, rollers of this type serve as the interface between the stationary or rotating jaws of the power tong and the tubular material. By providing a consistent engagement surface, they allow the machine to transmit torque safely to the connection without damaging the pipe body or allowing the tong to slip under load.