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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.

Hardened Steel Bushings

Hardened steel bushings are excellent for low speed / high load, or pivot applications. These hardened steel bushings are commonly used to protect a housing from premature wear caused by friction with a pin.

They are manufactured with high carbon steel and thru-hardened to 56-62 HRC. Hardened steel sleeve bearings require daily or maximum weekly greasing.

HEF hardened steel bushings are designed according to customer need, with different kinds of internal grooves providing lubricant distribution and facilitating abrasive particles removal. A flanged bushing or washer could be produced with the same technology.

They are supplied in diameters up to 400 mm (15").

Carburized / Hardened Steel

Dyn Load
(N/mm2)		 Max Speed
(m/s)		 Max Temp
(°C)		 Abrasion
Resistance		 Shock
Resistance		 Corrosion
Resistance		 Low
Maintenance
100 0.5 +200°C +++ + - -

Advantages:

  • Resistance to wear
  • Low cost
  • High load capacity

Applications:

  • All sectors ( common use )
  • Earth moving equipment
  • Mining equipment
  • General purpose industrial equipment