Nyloil is a cast nylon with built-in oil lubrication.  It provides excellent bearing characteristics not found in any other material.  Nyloil was developed specifically to extend the wear-resistant properties of unlubricated or dry lubricated materials like MoS₂-filled nylon, and has proved itself an extremely effective, self-lubricated bearing material for more than 10 years.

• Ordinary cast nylon significantly outlasts cast iron, brass, bronze and many other metallic and non-metallic bearing materials

• Nyloil provides identical reliability to ordinary cast nylon -- with superior notched load impact, elongation, coefficient of friction and water absorption

During Nyloil's manufacturing process, oil lubrication is completely and evenly dispersed throughout the cast nylon, making it an integral part of the material's structure.  Although not evident by sight or touch, the oil lubricant in Nyloil is always at the surface, regardless of the amount of material removed during any finish machining operations.

• Oil will not spin out, dry out or drain out, even under harshest working conditions

• Lubrication results in 25% lower-coefficient of friction than conventional grades of nylon

• Lubrication makes Nyloil non-porous for greater strength

• Lower coefficient of friction means less frictional heat buildup, the major cause of plastic bearing failures

Nyloil typically lasts 5 to 7 timers longer than unlubricated or MoS₂ dry lubricated cast nylon, based on dozens of customer applications and substantiated by rigorous testing.  This durability makes Nyloil an excellent choice for applications where traditional materials, including ordinary nylon, cannot be used.

• Performs in harsh environments where lubrication is difficult or impossible, or where constant lubrication is required

• Operates efficiently in direct contact with abrasive slurries

• Can be run without additional lubrication

• Works efficiently in marine applications

• Does not require bearing seals

• onstant lubrication results in low heat build-up

The long-lasting properties of Nyloil come with no penalty in machinability.  It can be free cut, and requires no more machining skill than ordinary nylons.  Because it contains its own lubricant, Nyloil can be machined much more quickly and easily than unlubricated nylon.

• Obtain excellent surface finish by using sharp tools in turning, milling, shaping or any other machining methods

• For conventional finish machine operations, use any high speed machine tool or woodworking equipment including circular saws, planing and routing machines

• Machining operations will not affect Nyloil's self lubricating qualities

Typical Applications - top

Stock Shape Availability - top

Wear Rate

Adding a lubricant to the basic polymer during the manufacturing process reduces the coefficient of friction by 25% at the bearing interfaces, thereby avoiding harmful heat build-up that limits the wear life of unlubricated materials.  The PV capability of Nyloil without lubrication is approximately 16,000.

Average Thrust Bearing Test Results - top

(2) Polymer Corporation

Dimensional Stability - top

With their higher crystallinity, all Nycast® products exhibit improved dimensional stability compared to their extruded nylon counterparts.  But Nyloil provides even better dimensional stability than regular grades of cast nylon: Its oil droplets fill gaps in the amorphous structure of the polymer, allowing less room for water to be absorbed into these areas.

Physical Properties

Because of the presence of oil in the matrix of the nylon, Nyloil exhibits superior physical properties, including notched load impact (Nyloil is two times less likely to break under load than regular cast nylon), improved elongation (twice the elongation of 6PA Natural), coefficient of friction (because oil is constantly present at the material's surface) and water absorption (the oil in the matrix leaves less room for water to be absorbed).