Labyrinth sealing device having a grease purgeable system

A dynamic sealing device for placement between a rotating shaft and a bearing housing comprising:

• a stator having an annular engagement flange on a radially inner portion thereof and fluid passage means, operatively formed in the stator, for allowing fluid to move from the bearing housing through the stator and out of the stator;
• a rotor having an annular engagement flange on a radially outer portion thereof, the stator and the rotor being operatively connected;
• and
• grooves, operatively positioned on the stator, the grooves including means for increasing the contact pressure between O-rings operatively positioned in the grooves for interacting with the bearing housing when pressure is applied to the dynamic labyrinth sealing device from the axial direction.

A dynamic sealing device for placement between a rotating shaft and a bearing housing comprising:

• a stator having an annular engagement flange on a radially inner portion thereof, axially opposed first and second end portions, and fluid passage means operatively formed in the stator, for allowing fluid to move from the first end portion through the stator and out of the stator;
• at the second end portion;
• at least two grooves, operatively formed on the surface of the stator most proximate the bearing housing, the grooves including a radially inner surface having a tapered portion, the tapered portion increasing the contact pressure between O-rings operatively positioned in the grooves and the bearing housing when pressure is applied to the dynamic sealing device from the axial direction;
• and
• a rotor having an annular engagement flange on a radially outer portion thereof and an annular ring operatively formed on the portion thereof that contacts the stator when the rotor and the stator are forced into contact when the rotor rotates, the stator and the rotor being operatively connected.

A sealing device comprising:

• a stator having an annular engagement flange on a radially inner portion thereof and fluid passage means, operatively formed in the stator for allowing fluid to move from an interior side of the stator to an exterior side of the stator;
• a rotor having an annular engagement flange on a radially outer portion thereof, the stator and the rotor being operatively connected;
• and
• grooves, operatively positioned on the stator, the grooves including means for increasing the contact pressure between O-rings operatively positioned in the grooves for interacting with the bearing housing when pressure is applied to the sealing device in the axial direction.

A system for supporting a rotating shaft comprising:

• a bearing housing;
• a stator having an annular engagement flange on a radially inner portion thereof, axially opposed interior and exterior ends, and fluid passage means, operatively formed in the portion of the stator most proximate to the bearing housing, for allowing fluid to move from the interior end through the stator and out of the stator at the exterior end;
• at least two grooves, operatively formed on the surface of the stator most proximate the bearing housing, the grooves including a radially inner surface having a tapered portion, the tapered portion increasing the contact pressure between O-rings operatively positioned in the grooves and the bearing housing when pressure is applied to the stator from the axial direction;
• and
• a rotor having an annular engagement flange on a radially outer portion thereof, the stator and the rotor being operatively connected.