Question

Mention the conditions under which semi-solid lubricants can be used

Answer 1

The semi-solid lubricants can be used under following conditions:

• In situations where the oil cannot remain in place due to high load, low speed, intermittent operation, sudden jerk etc.
• In situation where bearing has to be protected against entry of dirt, dust, moisture etc because greases are less liable to contamination by these.
• In situations where dripping or spurting of oil is undesirable because unlike oils, greases if used do not splash or drip over articles being prepared by the machines e.g., machines used in paper, food, textile and dying industry.
• When the machine is worked at slow speed and high pressure.