How Often Should I Lubricate the bearings

Bearings are the “joints” of our machine. Without proper lubrication, they suffer from excessive friction, heat build-up, and even premature failure.

Studies show that 40% of bearing failures are caused by poor lubrication.

The functions of lubrication include:

• Reduce friction and wear to extend bearing life
• Dissipate heat and prevent thermal deformation
• Prevent rust and corrosion
• Block contaminants like dust and moisture

How Often Should I Lubricate?

There’s no one-size-fits-all answer. Frequency depends on:

✅ Bearing type (ball, roller, thrust, etc.)

✅ Speed (high-speed = more frequent lubrication)

✅ Working environment (dusty, hot, humid = shorter intervals)

✅ Lubrication method (grease or oil)

General Guidelines:

Application & Recommended Lubrication Interval

1. Standard industrial bearings: Every 3–6 months

2. High-speed bearings (motors, fans): Every 1–3 months

3. Heavy-load or high-temp use: Weekly or monthly, depending on severity

How to Lubricate Bearings Properly?

1. Clean the bearing

Use kerosene or a designated solvent to remove old grease and debris.

2. Choose the right lubricant

Grease lubrication (used in ~80% of bearings): Ideal for medium/low speed and sealed systems

Oil lubrication: Better for high-speed or high-temp environments due to improved heat dissipation

3. Use the correct amount

• Fill 1/3 to 1/2 of the bearing’s internal space with grease.
• Over-lubrication can cause heat build-up.
• Seal it properly, make sure the dust covers or seals are intact to prevent contamination.

What will happen if you lubricate incorrectly?

• Too little ➜ Friction increase, seizure risk, premature failure
• Too much ➜ Grease overflow, poor heat dissipation, accelerated oxidation
• Wrong lubricant ➜ High-temp failure, seal incompatibility

Pro Tips from QIBR

Listen: Unusual humming or grinding noises may signal insufficient lubrication

Check temperature: If the bearing housing exceeds 80°C, inspect lubrication

Look at the grease: If it’s dark or contains metal particles, the bearing may be worn out

Lubrication isn’t “set it and forget it.” It’s a continuous maintenance task — and when done right, it means:

✔️ Smoother operation

✔️ Fewer breakdowns

✔️ Lower maintenance costs

For more info about the lubricant, feel free to contact QIBR!