Bearings wear out over time, and replacing them before they fail prevents unexpected downtime and more expensive damage to your equipment. But how do you know when it's time to replace your bearings? Look for these seven warning signs.
One of the first noticeable signs of bearing wear is unusual noise. Listen for:
Grinding or rumbling sounds
Squealing or screeching
Increased vibration or buzzing
If you notice new or increasing noise coming from your equipment, it's a strong indicator that your bearings are wearing out.
Worn bearings cause increased vibration in machinery. If you notice more vibration than usual when the equipment is running, it's time to inspect the bearings. Excessive vibration accelerates wear, so replacing worn bearings early prevents further damage.
As bearings wear, friction increases, which causes the bearing to run hotter than normal. If you notice that a bearing housing is unusually hot to the touch, even after allowing for normal operating heat, it's a sign of trouble.
Note: Some applications run hot by design, but any sudden increase in temperature is a warning sign.
When you do routine maintenance, inspect the bearings visually. Look for:
Rust or corrosion on raceways
Pitting or scoring on the rolling elements
Cracks or chips in raceways
Discoloration from overheating
Any of these visible signs mean it's time to replace the bearing.
If you can move the shaft more than normal when you wiggle it by hand, that means the bearing has worn excessively and clearance has increased. Excessive play leads to poor performance and can cause damage to other components.
If you see grease leaking from the bearing housing or notice contamination inside the bearing, it's time to replace the bearing. Seals wear out over time, and once contaminants get in, wear accelerates quickly.
Even if you don't see any obvious warning signs, it's good practice to replace bearings based on their expected service life, especially in critical equipment. Preventive replacement is much cheaper than dealing with an unexpected failure.
Check the manufacturer's recommended service life and schedule replacements accordingly. For applications running continuously, schedule replacement at 80-90% of the expected L10 life.
Waiting for a bearing to completely fail before replacing it can cause extensive damage to other parts of your equipment, leading to much longer downtime and higher repair costs. Regular inspection and preventive replacement saves you money in the long run.
When you need replacement bearings, MS Bearings has you covered. We stock a full range of high-quality equivalent bearings for all major brands, with fast delivery from our inventory. Get the same performance you expect at 30-50% lower cost.
Contact us today to order your replacement bearings or request a quote.
