Self-aligning ball bearings 108 TN9
Self-aligning ball bearings 108 TN9
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Bearing shoulds not be too much grease
by：Waxing
2020-11-15
Bearing should not add too much grease source: bearing | last updated: - 2020
08 -
Shoulds not be too much grease we know 12 bearing grease has good adhesion, abrasion resistance, temperature tolerance, non-standard bearing and lubricity, anti-rust, can improve the high temperature oxidation resistance, delay aging, can dissolve carbon deposition, prevent poly metal abrasive dust and oil pollution, the improved mechanical wear, pressure and corrosion resistance.
Understand the movement process of bearing grease, will naturally draw a conclusion: unfavorable and overmuch grease in the bearing.
More grease is not only waste, but is harmful.
Bearing the higher the speed, the more dangerous.
The more grease filling amount, the greater the friction torque.
The same filling amount, the sealed bearing friction torque is greater than the open bearing.
The grease filling amounts to 60% of bearing internal space volume, friction torque no longer increases obviously.
This is due to open in the bearing grease has been most extrusion, but also has lost in the sealed bearing grease.
With the increment of grease filling, bearing temperature rise straight line, the same filling amount, sealed bearing temperature rise is higher than the open bearings.
It is generally believed that sealed rolling bearing grease filling amount, shall not be more than about 50% of the internal space.
Shawki and Mokhtar experiment show that the ball bearing, 20% to 30% in the most appropriate.
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