The deep groove ball bearings with protective washers at the manufacturing plant are filled with lubricant and do not require maintenance in the process of operation.
Field of application: rigid two-pivot shafts of machines and mechanisms of various branches of mechanical engineering (80000, 180000 series), as well as units of control mechanisms of aircrafts operating with rocking motion (780000, 781000, 980000, 981000 and other series).
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