ROLLING BEARING SEAL Russian patent published in 2009 - IPC F16C33/76 F16C33/78 F16H7/12 F16H7/20 

FIELD: mechanics.

SUBSTANCE: seal (1) for rolling bearing (2) incorporates elastic seal washer (3) comprising reinforcing element (10) and revolving along with bearing outer race (5) or its housing, the washer being locked with form closure in its seat or annular groove (4). Aforesaid washer (3) enters groove (16) of inner race (9) to rest, via its seal edge (17), upon wall (18). First sealing cup (14) rests axially upon outer wall (18) of groove (16), while second sealing cup (15) seta with a gap relative to inner wall (19) of groove (16). The mass of sealing cup (14) makes the center of inertia (25) which, with seal (1) as-mounted, is so shifted towards resting line set by seal washer (3) that centrifugal force applied to aforesaid center of inertia brings on a component force acting clockwise. First sealing cup (14) features, on its outer side facing second sealing cup (15), swelling (24). First sealing cup (14) incorporates also at least one vent groove (26) fitted amidst seal edge (17).

EFFECT: rolling bearing seal prestressing sealing cups depending upon RPM.

12 cl, 1 dwg