Fundamental of Lubrication
Lubrication
Lubricants can be in fluid, grease and solid forms depend upon the requirement of the application.

Role of Lubricants
(1) Reduce friction
(2) Minimize wear
(3) Heat Control
(4) Control Contamination
(5) Prevent Rust and Corrosion
(6) Transfer of energy or power, etc.

Reasons for Equipment/Machine Failure
There are many reasons for equipment/machine failure. These failures can be split into the following two specific categories.
1. Failures that relate to maintenance
Poor lubrication practices
Faulty repairs
Slow response time
Lack of training
Ineffective PM
Inadequate Routine Maintenance

2. Failures that relate to outside or other influences
Operator error
Improper setup
Improper application
Sabotage
Machine design
Poor material specification
Poor training
Poor environment
Poor housekeeping

It is generally accepted within the lubrication community that 60% of all mechanical failures relate to poor or improper lubriction practices.

And it is generally accepted within hydraulic system industry that more than 75% of hydraulic machine failures relate to contamination or poor lubrication practices.

The STLE (Society of Tribologists and Lubrication Engineers) recognizes and states that approximately 50% of bearing failures are due to abrasion or, simply "lack of lubrication".

Benefits of Good Lubrication
Many government (U.S.A., U.K., Germany, Canada, Japan, etc.)reports, Research Institutes & Universities reports, Original Equipment Manufacturers(OEMs) reports that support on lubrication. The potential savings through proper lubrication practices are clearly visible and workable.

Europe - England in 1966
The first tribology report called "Jost Report" funded by British Ministry of state for Education and Service . This was the first comprehensive study how friction, wear and lubrication directly and indirectly affected the country Gross National Product (GNP) in the area of industry,natural resources and agriculture. Jost Report estimates of the effect of improved tribology.

Reduction in energy consumption through lower friction: 7.5%
Saving in Lubricant costs: 20%
Saving in maintenance repair and replacement costs: 20%
Saving in consequential loss due to downtime depended on type of failure and type of industry: Variable %
Savings in investment due to higher utilization ratios and greater machine efficiency: 1%
Savings in investment through increased life: 5% of new expenditure
Savings in power: 0.13%

Estimated by the report that improvement in lubrication and maintenance in industry could save the British economy 500 billion pound sterling per year.

Wear occurs as result of friction and lurication . And one-third of this expenditure was determined to be unnecessary.

Real cost of lubrication
Many maintenance profesionals have been understood the good lubrication is only to buy apply high quality lubricant for machine /equipment . In fact, there are many several factors which are related and associated lubrication, need to to be taken consideration. The real cost of lubrication will be divided into two imporatant categories:
Cost of lubricants
Purchase price of oils and greases

Cost of lubrications
Cost of select and using right lubricants
Cost of initial lubricants requirement
Cost of relubrication place, amount and interval
Cost of maintenance and repair
Cost of downtime
Cost of environment, etc.

The difference between Good Lubricants and Good Lubrications
Good Lubricants
Good lubricants or quality lubricants require only money to buy . It is purchasing function.

Good Lubrications
Require integration of knowledge, skill, managing, practicing, attitude and commitment of ensuring good lubrication. Good Lubrication, such as best fitting the type and quality of lubricants to the reliability machinery. Reduce and correction of abnormal condition, minimize failure. And keeping on improving good lubrication. This will lead to extend lubricants and machine lifetime. At present, more and more companies practice Total Productive Maintenance (TPM) , where, good lubrication is one of major fundamental requirement to be implemented. Money cannot buy this Good Lubrication.