FIELD: machine building.
SUBSTANCE: invention relates to a plain thrust bearing, more specifically to a plain thrust bearing used in post-type suspensions (McPherson suspension) for four-wheeled vehicle, as well as to a combined device of plain thrust bearing and piston rod. Plain thrust bearing consists of body (16) made from synthetic resin, circular cover (28) covering body (16), with possibility of rotation relative to body (16), circular metal plate (34) with outer disc part (32), upper circular surface touches lower circular surface of disc part (24) of circular cover (28), and located between circular comb part (6) of body (16) and disc part (24), and facing radially inside inner disc part (33) forming an integral part with part (32) and placed in hole formed by inner peripheral surface of disc part (24), and unit (36) of thrust bearing, which is located between body (16) and lower circular surface (35) of part (32) and gives plate (34) ability to rotate in direction (R) around axis (O) of body (16) relative to body (16). According to second version, thrust bearing is characterised by presence of first circular groove (84) made on inner edge side of upper circular surface of body (16), and at least one second circular groove (85, 86) surrounding groove (84) and having less depth than groove (84), and contains lubricant, which fills grooves (84, 85, 86).
EFFECT: technical result is creation of plain thrust bearing and combined device of plain thrust bearing and piston rod to prevent deformation of circular metal plate, attenuation of abnormal noise at relative rotation of piston rod and reducing height by reducing number of component parts even under action of high force on circular metal plate.
2 cl, 18 dwg
