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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.

Plain Spherical Bearing PEL®
BH / PEL L / MANGACHOC®

Plain Spherical Bearing PEL®BH / PEL L / MANGACHOC®

The advantage of a spherical plain bearing compared to bushings is accommodation of alignment errors, angular misalignment or deformation of components during operation (bending of pins, etc.) and wide tolerances.

HEF applies the same technology used on bushings to spherical plain bearings.