Details of self-lubricating bearings in time to add the grease

Self-lubricating bearing grease has excellent adhesion, abrasion resistance, temperature tolerance, anti-rust and lubrication, able to bearing high temperature oxidation resistance, delay aging, can dissolve carbon avoid poly metal abrasive dust and oil pollution, the progress in mechanical, compression of abrasion resistance and corrosion resistance.But after investigation in bearing grease summary of motion process, we did not notice, unfavorable and overmuch grease in the bearing.Added more not only spoils, grease and burn out.
In practical work bearing, if add too much grease, then the higher the speed, the harmfulness, the greater the filling quantity the more conflict with the greater the torque.Under the condition of the same filling quantity, the conflict in sealed bearing torque is bigger than open bearings.When the grease filling amounts to 60% of bearing internal space volume in the future, friction torque is no longer significant increase, this is due to the open type bearing grease in most already being squeezed out, and in the sealed bearing grease is also the cause of the loss.With filling amount of adding grease, bearing temperature rise of linear progress, the same filling amount, sealed bearing temperature rise is higher than the open bearings.Usually think, sealed ball bearing grease filling amount, shall not go beyond the internal space of about 50%, most ball bearing, 20% to 30% in the most suitable.
, of course, in order to determine the most suitable grease filling amount, sometimes think about other factors.For example, about some of the in filled with dust or very humid and even touch steam environment homework open bearing, also can fill in some more grease, in order to have a very good sealing conditions, make the bearing from dust or moisture.