9 Questions
What is the primary purpose of lubrication in the context of reducing friction?
To reduce friction between rubbing surfaces
What are common lubrication problems that could occur in machinery?
Hidden contamination from improper lubrication
How can visual inspections be helpful in identifying lubrication issues?
They can reveal any hidden contamination and wear patterns
What is a typical greasing procedure aimed at achieving?
Improving the operation of machinery by applying the right amount of lubricant
What is a potential risk associated with hidden contamination in lubrication?
Accelerated wear and tear due to lack of proper lubrication
Match the lubrication task with the correct component: Chain and sprockets
Grease with NLGI Grade 2 = Chain lubrication Inspect for wear and proper tension = Sprockets lubrication Use EP (Extreme Pressure) grease = Ball & roller bearings lubrication Monitor for metal particles and water contamination = Gearboxes lubrication
Match the lubrication task with the correct component: Ball & roller bearings
Grease with NLGI Grade 2 = Chain lubrication Inspect for wear and proper tension = Sprockets lubrication Use EP (Extreme Pressure) grease = Ball & roller bearings lubrication Monitor for metal particles and water contamination = Gearboxes lubrication
Match the type of contaminant with its description: Types of contaminants in lubrication
Water contamination = Can cause corrosion in components Metal particles contamination = Indicates possible internal damage Dirt and dust contamination = Can lead to abrasive wear Chemical contamination = May degrade the lubricant's performance
Match the lubrication task with the correct component: Gearboxes
Grease with NLGI Grade 2 = Chain lubrication Inspect for wear and proper tension = Sprockets lubrication Use EP (Extreme Pressure) grease = Ball & roller bearings lubrication Monitor for metal particles and water contamination = Gearboxes lubrication
Study Notes
What Gets Lubricated
- Chain and sprockets
- Lubricators
- Gearboxes
- Ball & roller bearings
- Pneumatic Cylinders
- Sealed bearings
- Sleeve bearings
Types of Contaminants
- Water (emulsions causing loss of oil film) & corrosion
- Solid impurities – grit wear particles
- Foreign bodies – dust etc.– abrasion
Common Lubrication Problems
- Over greasing – which can cause attraction of contaminants, raised operating temperatures – leading to lubricant breakdown
- Insufficient lubrication – i.e. low oil level in gear box or no grease in bearing – leading to heat build-up and wear
- Wrong lubricant – due to poor labelling or understanding of requirements e.g. oils containing sulphur can damage bronze components in gear boxes
- Lubrication not reaching intended area – Due to poor application or blockages / leaks within application system
Importance of Cleaning and Inspection
- Grease left around nipple… can attract grit
- Over lubrication & poor cleaning can attract contaminates causing premature wear and further ingress of contaminants
- Clean surfaces do not attract contaminants
- Hidden Contamination - Bearing with cap in place – looks clean but looks can be deceiving. Rust contamination found under cap. The cap also traps water against the cast iron housing generating rust.
Typical Greasing Procedure
- Check lubrication standard on CILT (type of grease & number of pumps)
- Check grease gun (correct type & sufficient grease)
Why We Lubricate
- To eliminate accelerated deterioration
- Reduces Wear
- Prevents corrosion
- Cools rubbing surfaces
- Reduces friction
- Seals out or flushes away contamination
- Dampen shocks
Types of Lubricants
- Grease
- Oil
- Aerosol
- Come in food grade or non-food grade variants
Grease vs.Oil
- Grease is a base lubricating oil with thickeners added
- It is thick, or viscous, semi-solid lubricants which will not leak out as easily as oils
- Oil : Thin & can be pumped continuously through equipment to remove heat
- Greases are used:
- Instead of oil when the lubricant has to stay in one place or stick to a part
- When the component cannot be lubricated often or is not accessible during operation
- To prevent friction and wear, to protect against corrosion
- To provide a seal from dirt and water
- To provide lubrication that does not leak or drip off the surface to which it is applied
- To lubricate for a long time without breaking down
Safety Considerations
- National Sanitary Foundation H1
Examples of Lubrication Application
- Lubricant Application – Grease Gun
- Grease guns are one of the most common application methods in the brewery
- May not pump grease – blockages, poor attachment of coupler
- Potential damage to bearing if you over-grease & there is a blockage
- Introduce contaminants into grease system
Test your knowledge on industrial lubrication by identifying components that need proper lubrication, common lubrication problems, and types of contaminants affecting machinery. This quiz covers chain and sprockets, gearboxes, bearings, pneumatic cylinders, and more.
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