Design Engineering

Lubrication

Definition – Lubrication is the introduction of a substance between the contact surfaces of moving parts to reduce friction and to dissipate heat. A lubricant may be oil, grease, graphite, or any substance-gas, liquid, semisolid, or solid-that permits free action of mechanical devices and prevents damage by abrasion and “seizing” of metal or other components through unequal expansion caused by heat. In machining, process lubrication also function as coolants to forestall heat-caused deformities.

Lubrication and Coatings – Most of our engineered coatings offer some level of lubricating properties. These lubricants are functional combinations of Molybdenum Disulfide, Graphite, PTFE and other engineered materials. Originally designed as aerospace lubricants, these dry film lubricants are now used in a wide variety of applications.

Solid film lubricants are films of resin, which bind lubricating powders such as MoS2 (molybdenum disulfide), graphite or fluorocarbon to a surface. Solid film lubricants provide lubrication in many situations where oils and greases are ineffective.

The following is a graphical example of lubrication and Bonded Coatings :

Example: When using coatings for Lubrication purposes, the lubricant acts as a buffer to assist with motion such as in the above bearing example.

Cast Iron Substrate

Environments for Lubrication

High and Low Temperatures

Our engineered coatings lubricate effectively over a wide temperature range – from -395° to over 2000°F. When operating temperatures exceed the range of fluid lubrication, solid film coatings should be used.

High and Low Loads

We offer engineered coatings that lubricate effectively while withstanding loads in excess of 250,000 psi, and they typically exhibit a lower coefficient of friction as load is increased. We also offer products that are very effective with extremely light loads.

Dry and Wet Environments

We offer engineered coatings that lubricate effectively in wet environments such as offshore drilling or in very humid locations. We also offer products that lubricate effectively in extremely dry environments such as desert climates.

Radiation and Vacuum

We offer engineered coatings that lubricate effectively in a high vacuum, as well as maintaining their lubrication ability in an environment exposed to radiation.

Environmental Conditions

The following table shows the wide variety of environmental conditions that E/M solid film lubrication can withstand while providing the necessary lubrication.

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Frequently Asked Questions

About Us

Coating Type
Temperature Range
Load Capacity
Dry / Wet Environment
Radiation
Vacuum
Speed
MoS2
Cryogenic to 750° F (in air) or 1200° F (in inert environment
Up to 100,000+ psi
Dry
Poor
Good
Low to High
Graphite
cryogenic to 1200° F (in air) or 2000° F (in inert environment)
Extremely light to 40,000 psi
Dry
Good
No
Low to Very High
PTFE
from -150° F to 500° F
Extremely light to 10,000 psi
Wet
Poor
Fair*
Low

*varies with formulation

Application Examples

The following are examples of components with lubrication problems and the engineered coating services that solved the problem.

Component / Part
Problems Solved
Industry
Ball Valves & Seats
Lubrication
Pump & Valve
Bolts for Lock Assemblies
Lubrication, Wear, Decorative
Fasteners
Bullets
Better Accuracy, Speed, Less fowling
Industrial
Elastomeric Seals
Lubrication
Industrial
Main Springs for Subsurface Instruments
Lubrication
Industrial
Missile pneumatic actuation systems
Lubrication, Corrosion
Military
Press Nuts
Lubrication
Fasteners
Rubber Bumpers
Lubrication
Automotive
Screw Fasteners
Lubrication, No Shedding
Fasteners
Screw Shafts for High Speed Printers
Lubrication, Friction
Medical
Vane Motors & Bearings
Lubrication, Friction
Medical

Questions

Please see identify problems for a quick response to any type of lubrication and/or other questions that you have on how Everlube Products’ coatings can help solve your design challenges.

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