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Studs, Nuts & Bolts

Radial Fit Bolt

Hydraulically fitted coupling bolts that replace traditional coupling bolts — eliminating installation problems and ensuring precise concentricity.

Radial Fit Bolt

Product Overview

Riverhawk's Radial Fit Bolt (Hydraulically Fitted Coupling Bolt) consists of a tapered bolt with a tapered sleeve and two cylindrical nuts. It is designed to replace standard coupling bolts and reduce the installation and operational problems created by the use of traditional style coupling bolts.

The Radial Fit Bolt completely fills the bolt hole, eliminating slippage and pinching due to poor fit. Hydraulically assisted removal is available when needed. The replaceable outer sleeves reduce maintenance costs over time, and stronger materials eliminate sleeve imprint and provide greater load carry capacity.

Key Features

  • Ideal for retrofits — direct replacement for standard coupling bolts
  • Establishes and maintains precise concentricity
  • Completely fills bolt hole — eliminates slippage and pinching
  • One person installation and removal
  • Hydraulically assisted removal available
  • Reusable with replaceable outer sleeves
  • Stronger materials — greater load carry capacity
  • Eliminates sleeve imprint

Applications

Gas turbine coupling bolt replacement
Steam turbine coupling assemblies
Diaphragm coupling installations
Retrofit of existing equipment
Applications requiring precise concentricity
High-speed turbomachinery

Technical Specifications

DesignTapered bolt with tapered sleeve
Nut TypeTwo cylindrical nuts
InstallationOne-person operation
RemovalManual or hydraulically assisted
Outer SleevesReplaceable
ReusabilityFully reusable
Product Demo

See It In Action

Watch a live demonstration of our Radial Fit Bolt.

Ready to Order or Need Help Specifying?

Our engineers are available to assist with product selection, sizing, and custom configurations.