Liquid Nitriding

Liquid nitriding is a subcritical surface enhancement process with one of the longest track records of success of any case hardening technology.

PVD Coatings

PVD coatings involve the deposition of thin (2-10 microns; 0.0001" – 0.0004") films on the surface of tools and components.

Engineered Bushings

HEF bushings are recognized worldwide for their excellent frictional and anti-seizure properties, and ability to withstand high loads.

Spherical Steel Bushings

The advantage of a spherical bushings compared to cylindrical bushings is their ability to accept alignment errors, angular misalignment or deformation of components during operation (bending of pins, etc.) and wide tolerances. HEF applies the same performance enhancing technology used on our cylindrical steel bushings to our spherical bushings.