A dry-lubricating apparatus, for press fitting onto a mating part, includes (a) a frame, (b) a rubber gasket fixed to the frame to create an interference with a mating surface of the mating part so as to enable the press fitting, and (c) a lead-in edge fixed to at least one of the frame and the rubber gasket. The lead-in edge includes a dry lubricant such that, when the dry-lubricating apparatus is slid onto the mating part, along the mating surface and with the rubber gasket trailing the lead-in edge, a portion of the dry lubricant is abraded off the lead-in edge to reduce friction between the rubber gasket and the mating surface.

A dry-lubricating apparatus, for press fitting onto a mating part, includes (a) a frame, (b) a rubber gasket fixed to the frame to create an interference with a mating surface of the mating part so as to enable the press fitting, and (c) a lead-in edge fixed to at least one of the frame and the rubber gasket. The lead-in edge includes a dry lubricant such that, when the dry-lubricating apparatus is slid onto the mating part, along the mating surface and with the rubber gasket trailing the lead-in edge, a portion of the dry lubricant is abraded off the lead-in edge to reduce friction between the rubber gasket and the mating surface.

An elastic body includes an annular main body portion to be disposed in an annular gap, a seal lip portion extending from a portion, closer to an object to be sealed, of the main body portion and being to be in contact with an inner member, a flange portion extending outwardly from an end, opposite to the object to be sealed, of the main body portion and including a first side closer to the object to be sealed, the first side being to be in contact with an outer member, a side lip portion extending from the end opposite to the object to be sealed in a direction away from the object to be sealed, and a projecting portion formed circumferentially on a second side, opposite to the object to be sealed, of the flange portion. The side lip portion has a back surface configured to be in contact with the projecting portion in response to the side lip portion being pressed by a mating member disposed opposite to the object to be sealed.

A sealing assembly that includes first, second and third sealing elements, where the first sealing element is disposed between the second and third sealing elements. The sealing elements are shaped in a complementary manner so that the sealing elements when assembled nest together. The sealing elements also have different hardness values associated therewith.

A sealing assembly that includes first, second and third sealing elements, where the first sealing element is disposed between the second and third sealing elements. The sealing elements are shaped in a complementary manner so that the sealing elements when assembled nest together. The sealing elements also have different hardness values associated therewith.

A speed reducer according to the present invention includes: at least one gear member for changing a speed of rotations input from a rotary device and outputting the rotations; a case housing the gear member; and a heating unit provided on the case and configured to heat the case or an inside of the case.

A radial shaft seal for a shaft to be sealed operating at high rotational speeds and circumferential speeds in both rotational directions has a sealing lip with a first circumferential ring and a second circumferential ring. The first circumferential ring is resting seal-tightly against the shaft to be sealed and seals the medium side. At the side of the first circumferential ring facing the air side, there are first return elements that convey leakage medium back to the medium side. The second circumferential ring is provided at the side of the first circumferential ring facing the air side and second return elements are provided at its air side. The second return elements guide medium that has passed underneath the second circumferential ring back underneath the second circumferential ring to the medium side.

A radial shaft seal for a shaft to be sealed operating at high rotational speeds and circumferential speeds in both rotational directions has a sealing lip with a first circumferential ring and a second circumferential ring. The first circumferential ring is resting seal-tightly against the shaft to be sealed and seals the medium side. At the side of the first circumferential ring facing the air side, there are first return elements that convey leakage medium back to the medium side. The second circumferential ring is provided at the side of the first circumferential ring facing the air side and second return elements are provided at its air side. The second return elements guide medium that has passed underneath the second circumferential ring back underneath the second circumferential ring to the medium side.

The present invention relates to a stuffing box assembly comprising a stuffing box and a solid plate, the solid plate may be placed at the shaft introducing end of the stuffing box, between the stuffing box and a surface, when the stuffing box assembly is mounted on to the surface, the solid plate may be on a first side provided with a pressure plate flange and on a second side be provided with a counter pressure plate flange, wherein the pressure plate flange and/or the counter pressure plate flange is provided with one or more locking projections pointing towards the solid plate.

Support assembly for movable, rotating or sliding shafts, having a bearing unit adapted to receive the movable shaft, a casing and a cover for fluid sealing an opening of an internal seat of the casing; the bearing unit having a radially outer ring, a radially inner ring and a row of rolling elements between the radially outer ring and the radially inner ring; the support assembly also being provided with: a rear sealing device, placed on the opposite side with respect to the cover, and comprising a metal shield and a vulcanized rubber liner equipped with a first, axially outer, sealing lip and with a second, axially inner, sealing lip the support assembly being characterized in that the rear sealing device comprises a further third sealing lip slidingly contacting the radially inner ring.