insert ball bearing than other plain bearing is also characterized by double-sealed

insert ball bearing than other plain bearing is also characterized by double-sealed, because the use of environmental conditions are generally spherical ball bearings more demanding, especially agricultural machinery bearings even more, and double sealed to ensure that the dust is not easy to enter its channel interior the last two years, some companies have developed triple-lip seal of the spherical railway bearing dust will greatly enhance the ability to extend bearing life.