Why Bearings Fail Early in Indian Factories
- sls-r&d

- Jan 8
- 1 min read
1️⃣ Wrong Bearing, Right Part Number
Most buyers repeat the same part number because “it worked last time.”
That’s how failures get institutionalized.
Common misses:
No C3/C4 clearance in high-heat zones
Deep groove bearings used where axial load exists
Standard bearings in dusty or washdown environments
A 6309 is not a 6309 everywhere. 2️⃣ Brand Name Doesn’t Cancel Physics
Yes—SKF, FAG, NSK, Timken are excellent.
No—they don’t survive:
Misalignment
Poor lubrication
Bad mounting
Price buys pedigree, not immunity.Fit to application decides life. 3️⃣ Installation Kills More Bearings Than Load
Most damage happens before the machine even starts.
Typical factory reality:
Hammer mounting
Dirty hands
Wrong shaft tolerance
One bad install = early fatigue. Always.
4️⃣ Lubrication Is Usually Wrong, Not Missing
Over-greasing, wrong grease, mixed grease.
All silent killers.
If RPM, temperature, and relubrication cycles aren’t matched, failure is just delayed—not avoided. 5️⃣ India Is Not a Catalogue Environment
Most bearing data assumes:
Clean air
Stable power
Controlled heat
Indian plants have:
Dust
Voltage spikes
Heat surges
That’s why sealed bearings, insulated bearings, and higher clearance often outperform “textbook selections”. What Smart Buyers Do Differently
They don’t ask:❌ “What’s the cheapest 6312?”
They ask:✅ “What bearing gives the lowest cost per running hour?”
They choose suppliers who ask about:
Load
RPM
Temperature
Environment
Not just quantity. Final Reality Check
Bearings are cheap. Downtime is not.
If your supplier only sends quotes and never asks questions, you’re not buying bearings—you’re pre-booking failures.


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