FIELD: machine building.
SUBSTANCE: invention is related to sealing for belt pulley (1) that rests on frictionless bearing. For this purpose frictionless bearing (2) has sealing cover (19a) on external side, which covers frictionless bearing (2) from end side and is connected to hub (9) that embraces frictionless bearing (2) from external side. On the opposite side frictionless bearing (2) comprises sealing orifice (24a), which is also fixed in hub (9) and interacts internally with cylindrical section (27) of fixed body (5).
EFFECT: creation of seal for frictionless bearing with compact design, with high sealing properties and without negatively affecting friction heat.
30 cl, 3 dwg
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