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Nyloil®

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

Gears

Bearings

Bushings

Sprockets

Wear Pads

Sheaves

Pulleys

Guildes

Tooling Fixtures

Cams

Feed Screws

Wear Rails

Housings

Wear Shoes

Conveyor Wheels

Buffer Plates

Sleeves

Insulators

Scraper Blades

Wear Strips

Rollers

Die Wear Plates

Telescoping Boom
Wear Pads

Slipper Blocks

Form Tools

Star Wheels

Valve Seats

Wear Rings

Seals

Wheels

Rubbing Blocks

 


Stock Shape Availability - top

Rod 2" diameter to 12" diameter
Plate 1/4" to 4" thickness (in 1/4" increments). Available in 24" x 48", 28" x 57" and 36" x 48"
Tubular Bar 2" to 40" O.D. (wall sections, 1/4 to 4").  Standard lengths: 13", 26" and 39".
Discs 12-1/2" to 40" diameter (2" to 4" thickness)

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

Material Wear Factor K(1) Coefficient of Friction Dynamic (1) Comparative Wear Rate to Nyloil

Nycast/Nyloil

4 .12 1

Acetal/PTFE Filled

16 .15 4

Nylatron NSM(2)

33 .17 8

Nycast/6PA-MoS2 Filled

274 .48 68

Nycast/6PA- Natural

368 .45 92

Nylon 6/6

900 .43 225

Bronze (ASTM B-147)

3,000 .34 750
(1) Measured on thrust washer testing machine, unlubricated @ 10 fpm and 250 lb./sq.in.

(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).

 

Property Test Method ASTM Units Nyloil

Specific Gravity, 73F

D792

-

1.14-1.15

Tensile Strength, 73F

D638

psi

8,800-9,800

Tensile Modulus of Elasticity, 73F

D638

psi

300,000-400,000

Elongation, 73F

D638

%

45-55

Flexural Strength, 73F

D790

psi

13,000-13,500

Flexural Modulus of Elasticity, 73F

D790

psi

360,000-380,000

Shear Strength, 73F

D732

psi

8,000-9,000

Compressive Strength, 73F

D695

psi

-

Compressive Modulus of Elasticity, 73F

D695

psi

260,000-290,000

Coefficient of Friction

-

-

0.14-0.15

Hardness Rockwell

Durometer

D785

D676

R

D

90-100

80-83

Coefficient of Linear Thermal Expansion, 73F

D696

in./in.F

3.9 x 10-5

Deformation Under Load 2000 psi @ 122F

D621

%

0.78

Notched Izod Impact

D256

ft./lbs./in.

1.4 - 1.8

Melting Point

D789

F

45010

Continuous Service Temp

-

F

230

Intermittent Service Temp

- F 330

Water Absorption, 24 hrs

Saturation

D570

D570

%

%

0.3-0.4

2.0-2.5

     
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