Why always say non-standard deep groove ball bearing is unfavorable and overmuch grease

Why always say non-standard deep groove ball bearing is unfavorable to add too much grease source: bearing | last updated: - 2020 08 - 14 why always say deep groove ball non-standard bearing shoulds not be too much grease we know grease has good adhesion, abrasion resistance, temperature tolerance, non-standard deep groove ball 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 deep groove ball bearing grease, will naturally draw a conclusion: deep groove ball bearings of unfavorable and overmuch grease. More grease is not only waste, but is harmful. The higher the speed of deep groove ball bearing, the greater the harm. The more grease filling amount, the greater the friction torque. The same filling amount, sealed deep groove ball bearing friction torque is greater than the open deep groove ball bearings. Grease filling amount equivalent to 60% of the deep groove ball bearing internal space volume, the friction torque is no longer increased obviously. This is due to open in the deep groove ball bearing grease has been most extrusion, and sealed the grease of the deep groove ball bearings have also been lost. With the increase of grease filling quantity, deep groove ball bearings linear temperature increase, the same filling amount, sealed deep groove ball bearing temperature rise is higher than the open deep groove ball bearings. It is generally believed that hermetic scroll of deep groove ball bearing grease filling amount, shall not be more than about 50% of the internal space. Shawki and Mokhtar experiment show that the ball deep groove ball bearing, 20% to 30% in the most appropriate.