Abstract: A seal contact surface of a seal lip member and a protruding lip member of an end face seal are separated from each other and frictional heat generated at the seal lip member due to sliding motion is prevented from being transferred to the end face seal for softening the material, thus the seal capability is improved. A protruding lip member (3) provides a seal by making an angle to a seal surface (11B) of a seal ring (11) in radially outward a direction and a lip portion (15A) of a seal lip member (15) is disposed inside an inner diameter surface (11A) of the seal ring (11) for effecting a seal against a sealing object fluid.

Abstract: A seal device (31) for a bearing system (21) is constituted by first and second seal rings (32) and (35). The first seal ring (32) is constituted by a lip seal (33) having a lip portion (33B) in sliding contact with an end face (23B) of a bush (23) which is fitted on a joint shaft (26), and a slide tube (34) having a seal surface (34C) on an end face at an axial end away from the lip portion (33B) which is formed integrally with a tubular body portion (33A) of the lip seal (33). The second seal ring (35) is fixedly fitted in a boss (22) radially on the outer side of the first seal ring (32), and provided with a seal surface (35D) on the inner side of an annular inward collar portion (35C) for sliding contact with the seal surface (34C) of the slide tube (34).

Abstract: A crankshaft for use in a compressor that incorporates a lip seal includes a first material forming the crankshaft, an area on the crankshaft that engages the lip seal, and protection for the crankshaft from wear due to frictional contact with the lip seal. The protection includes a secondary material added to the crankshaft causing a hardened surface of the crankshaft at the area. The protection is preferably in the form of a wear sleeve on the crankshaft. The wear sleeve is formed from a second material which wears less than the first material while in contact with the lip seal and the wear sleeve is formed separate from the crankshaft and removable for replacement.

Abstract: A multiple shaft seal arrangement positioned between a shaft and an inside diameter surface of an aperture in a wall. The multiple shaft seal arrangement has a flinger attached to the shaft with a face seal mounted to the flinger. A double lip oil seal is mounted to the inside diameter of the aperture. The flinger is positioned such that the face seal is pressed against the double lip oil seal. Accordingly, rotation of the shaft causes rotation of the flinger and face seal. This centrifugally throws contaminants, such as particulate matter, away from the aperture. The void between the face seal and the inside diameter of the aperture is filled with grease or similar substance. The combination of these elements greatly prohibits debris, moisture, particulate matter or other environmental elements from passing from one side of the multiple shaft seal arrangement to the other.

Abstract: The invention relates to a seal of the type V-ring. The seal comprises a body (7) with an inner side (13) for abutting, for example, a rotary shaft (1). The seal further comprises a lip (8) with a rear side (10) and a front side (9) with a lower portion (1/9 and an upper portion, the sealing surface (16). The sealing surface is intented to abut a surface rotary in relation to the seal (5), against which surface it is intended to seal. In order to prevent the seal (5) from being broken down by aggressive medium, it is made of PTFE. A resilient ring element (12) is provided to act on the lip (8) with a force, which results in that the sealing surface (16) will move in the direction to the surface it is intended to seal against. The resilient ring element (12) further is arranged so that it cannot come into contact with the aggressive medium.

Abstract: A wrap-around interlocked labyrinth seal adapted to be mounted upon a rotating shaft, having a rotor and a stator. A flange positioned on the stator completely encircles the rotating shaft. The stator is interlocked by positioning a cover of the stator within a radial opening of the rotor and interlocking the cover with an enclosure member of the rotor. One embodiment of the seal includes an interlocking member as part of the cover. The interlocking member interlocks with a flange of the rotor.

Abstract: A sealing device for a gear box includes a box having a hole defined through a wall thereof and a shaft having a first end rotatably engaged with an inside of the box. A second end of the shaft is supported by a bearing which is received in a frame engaged with the hole of the box. A cap is connected to an end of the frame in the box and mounted to the second end of the shaft. A space is defined between a skirt and a protrusion of the cap so as to receive a seal therein. The seal has a flexible plate which is engaged with the end of the frame in the box. The flexible plate effectively prevents oil in the box from entering a gap between the bearing and the frame when the shaft is not rotated.

Abstract: A two-piece seal is provided for a bearing assembly. The seal includes a first seal ring or labyrinth element received on an inner diameter of the bearing outer race and a second seal ring or labyrinth received on an outer diameter of the bearing inner race. The labyrinth include ribs and channels on facing or opposed surfaces which are sized and shaped such that the rib of one seal ring is received in the groove of the opposing seal ring to thereby form a labyrinth path between the two labyrinth elements. Additionally, a flexible seal lip is formed on one of the labyrinth elements to form a dynamic seal between the two labyrinth elements at an inner end of the labyrinth path.

Abstract: Provision is made in a shaft sealing ring, comprising a rotary support body, at least one sealing lip mounted on the support body and extending at least partly in radial direction, and a sealing surface offered by the sealing lip and contacting a stationary countersurface, for the sealing lip to consist of a material which is permeable to the medium to be sealed off and permits penetration of the medium to be sealed off from a surface of the sealing lip facing the sealed space to the sealing surface.

Abstract: Sealing device (1) with an integral encoder wheel (2), the device presenting a rotating shield (3) which is provided with a centrifugal tubular race (5), and with a flange (6) which is transverse to the centrifugal race (5) itself; a fixed shield (4) provided with an end portion (7) which faces the flange (6); a encoder wheel (2) which is integral to the rotating shield (3) and which is arranged outside the flange (6); and a radial sealing lip (11) which is integral to the fixed shield (4) and which is arranged in sliding contact with the centrifugal race (5), in relation to which it is orientated in an axially opposite direction; an axial blocking element (17) which extends in such a way as to be interposed between the said encoder wheel (2) and the end portion (7) of the fixed shield (4) in order to create a radial interference between the encoder wheel (2) and the end portion (7) themselves.

Abstract: A device for sealing the gap between a stationary housing and a rotating shaft includes a radial packing ring in a stationary mount in the housing, the packing ring having a sealing lip made of a polymer material that comes in contact with the shaft under an elastic prestress, and a pulse wheel is mounted upstream from the radial packing ring in the direction of the outside air, rotates with the shaft and has a pulse generator surrounding the shaft at a radial distance, and a sensor in a stationary mount for detecting rotational movements of the pulse wheel, the pulse generator (7) being formed by a cylindrical sleeve (24) having magnetic poles (8) facing radially outward or being composed of a generator wheel (13) having teeth (14) and spaces between the teeth on the outer circumference, and the sealing lip (9) is in the form of a ring disk due to the manufacturing method, and in the area of its inner circumference it becomes wider from the direction of the pulse wheel (7), its inner circumference engaging i

Abstract: Even high viscosity fluid or slurry-contained fluid is securely sealed without deficiency of a liquid sealing device. The sealing liquid device includes an annular packing made of rubber-like elastic material, the annular packing having a secured section fitted with fluid tight to one retaining surface between the first stationary seal ring and the seal flange and having a seal lip section fitting to the other contact face for sealing.

Abstract: A shaft seal assembly includes an outer stationary carrier, an inner member, and a sealing system including a primary lubricant-retention seal that is fixed to the carrier in combination with a number of debris-excluding seal features. Such features include a first debris-exclusion seal fixed to the carrier adjacent the primary seal and a second debris-exclusion seal that is mounted on either the carrier or inner member and has at least one lip sealingly engaging the other of the carrier and inner member in spaced relation to the first debris-exclusion lip defining a sealed annular cavity therebetween. Disposed within the cavity is a porous filter element in the preferred form of an open cell sponge. The various dust exclusion features cooperate to allow each to perform efficiently. The outermost second debris-exclusion seal guards the foam against substantial debris, and the foam in turn protects the first debris-exclusion lip against virtually all debris.

Abstract: An oil seal for a locking differential mechanism. The seal assembly includes a generally flat plate with a first generally circular oil seal adjacent an outer margin of the flat plate, a circular inner margin defining an opening in the flat plate with a second oil seal surrounding the inner margin, an oil outlet opening lying in an otherwise imperforate area between the first and second margins, and a cover for the flat plate with the cover and plate defining between them a passage for oil extending from a point radially outside the first seal to at least a point adjacent the oil outlet. The seal takes in a supply of oil from the differential sump and supplies it through the oil outlet to a multi-plate clutch which is activated only when the two axles undergo rotation relative to each other and thereby actuate a Gerotor type oil pump.

Abstract: An improved fluid seal device or pressure seal of the type suitable for uses such as sealing an annular space between an internal surface and a member having an outer cylindrical surface is described. The seal includes a reinforced body formed of fabric reinforced rubber and at least one dynamic lip made substantially of rubber. The lip protrudes from the seal so that a small portion of the lip contiguous to the body of the seal and containing fabric reinforcement is contacted by the movable member in addition to the movable member contacting the resilient portion of the lip. The resilient portion of the lip hinges along the interface between the resilient portion and the fabric reinforced portion to control break-away frictional forces between the seal and the member.

Abstract: An auxiliary seal for a bearing includes a seal housing supported by the bearing housing, and a seal ring interference fitting around a mechanical element such as a shaft or sleeve supported for rotation by the bearing. The housing and sleeve include a series of rings that interface with one another to maintain the seal ring in place on the mechanical element. A face rubbing seal is supported on the seal ring and contacts a portion of the seal housing as the mechanical element rotates relative to the bearing housing. The seal ring has an integral backup portion which contacts the face rubbing seal to prevent the face rubbing seal from sliding axially away from the seal housing. A series of seal barriers are defined by the seal housing and seal ring, including contact seals, grease dams and labyrinth seals.