Abstract: To prevent grease applied to seal lips of sealing device from adhering to an attaching ring of an adjacent sealing device when the sealing devices are stacked in the axial direction, a sealing device (1) comprising seal lips (12, 13) made of a rubber-like elastic material and integrally provided on an attaching ring (11) has a projection (17) made of a rubber-like elastic material and provided at an outer periphery of the attaching ring (11) so that the projection (17) serves as a retention portion to contact with the attaching ring (11) of the adjacent sealing device (1) at the side to which the seal lips (12, 13) are directed when the sealing devices (1) are stacked, whereby desired gaps (?1, ?2) are retained between grease (G) applied to the sealing lips (12, 13) and the attaching ring (11) of the adjacent sealing device (1).

Abstract: To improve durability of a seal lip (4) of an oil seal (1) in slidably contact with the peripheral surface of a shaft (23), a lubricating oil supply section (11) for collecting adhered oil and dropping it on the shaft (23) is provided at a forward end portion of an installation section (2), the lubricating oil supply section (11) has projections (12) formed on the inner peripheral surface of the installation section (2) to collect oil on the surface thereof, the surface of each projection (12) has a recess (13) for temporarily accumulating oil, guidance projections, or a slope for collecting the oil, and dams are formed on a forward end face (2a) of the installation section (2) to block the oil flowing down along the circumferential direction on the forward end face (2a) and guides the oil toward each projection (12).

Abstract: A sealing device (1) formed by combining an inner peripheral sealing member (2) and an outer peripheral sealing member (3), where the inner peripheral sealing member (2) such as a slinger member is prevented from falling out in axially one direction from the outer peripheral sealing member (3) such as a lip seal member. The inner peripheral sealing member (2) has a metal ring (4) provided with a tubular section (4a) and a radially rising section (4b) integrally formed with the tubular section (4a) and extending radially outward from one end of the tubular section (4a). The outer peripheral sealing member (3) has side lips (7e, 7f) in slidable intimate contact with the radially rising section (4b) of the metal ring (4), and also has a radial lip (7g) provided without contact, on the outer peripheral side of the tubular section (4a) of the metal ring (4).

Abstract: To prevent deterioration of sealing ability during installation of a second seal ring, facilitate parting of a first seal ring from a mold, and enhance degree of freedom of setting the thickness of a seal lip, a sealing device has a first seal ring (20) integrally formed with an installation ring (10) from a rubber-like elastic material and a second seal ring (30) assembled with the first seal ring (20), the first seal ring (20) has a seal lip (25) formed to project outward from a tip (11a) of a tube section (11) of the installation ring (10), and the seal lip (25) is made to be slidably in close contact with the outer peripheral surface of the second seal ring (30) in a state that with the seal lip (25) is reversed toward the inner periphery of the tube section (11) by insertion of the second seal ring (30).

Abstract: To improve sealing performance by a labyrinth to inhibit entry of dust, a sealing device (1) comprising an inner peripheral side sealing member (2) fitted to an inner peripheral side mounting member and an outer peripheral side sealing member (3) fitted to the outer peripheral side mounting member, both relatively rotating, has an outer peripheral tube part (4c) formed on the outer peripheral portion of the metal ring (4) of the inner peripheral side sealing member (2), and a series of long labyrinth spaces (8, 9, 10) is formed between the outer peripheral surface of the outer peripheral tube part (4c) and the outer peripheral side sealing member (3), between the end face of the outer peripheral tube part (4c) and the outer peripheral side sealing member (3), and between the inner peripheral surface of the outer peripheral tube part (4c) and the outer peripheral side sealing member (3).

Abstract: To improve performance without increasing size, a sealing device comprises a seal body (6) sealing a clearance (5) between the periphery of the shaft hole (3) of a housing (2) and a shaft (4) inserted into the shaft hole (3) and the sound insulating seal (7) insulating sound transmitted through the clearance (5), the seal body (6) comprises a bellows part (10) between a mounting part (8) fitted to the housing (2) and a seal lip part (9) contacting with the shaft (4), the sound insulating seal (7) comprises a sound insulating member (20) disposed at the inner peripheral side of the mounting part (8), and the sound insulating member (20) is held to the seal body (6) in the state of contacting with the mounting part (8) at its outer peripheral part (20a) and with the seal lip part (9) at its inner peripheral part (20b).

Abstract: To prevent increase of torque by sliding movement of an auxiliary lip, large lubricating resistance against main lips caused by the auxiliary lip, a turning trouble of the auxiliary lip and sliding abrasion of the auxiliary lip, a sealing device (1) comprises a slinger (2) installed on one member (21) of two relatively rotating members and a lip member (3) installed on the other member (22), the slinger (2) comprises a mounting part (2a) and a flat surface part (2b) which are formed integrally, the lip member (3) comprises main lips (5g, 5h) closely contacted to the end face of the flat surface part (2b) of the slinger (2), and an auxiliary lip (5i) with labyrinth structure radially facing a peripheral surface (21a) of the one member (21) is formed at the inside from the main lips (5g, 5h) at a position axially deviated from the mounting part (2a).

Abstract: To effectively suppress occurrence of rusting on the axial end face of a housing such as the outer race, to which the sealing device is fitted, so that deterioration of a fixedly fitted part and the slide movement wear of a seal lip due to rust can be prevented, the sealing device comprises an end face rust-preventive seal part 9 to prevent the adhesion of moisture as external foreign matters to an axial end face 21a of a housing 21 such as a bearing outer race, so as to prevent occurrence of rusting on the axial end face 21a, and the end face rust-preventive seal part 9 seals moisture by covering the axial end face 21a of the housing 21 by its component, or by extending the component in a hood shape on the outer peripheral side of the axial end face 21a of the housing 21.

Abstract: To reduce a sliding resistance to the rotation member, and whereby to reduce a torque, a thickness of an inner diameter side lip is formed to be larger than a thickness of an outer diameter side lip, and the outer diameter side lip is formed thinner than the inner diameter side lip in thickness. A depression for inhibiting both the lips from pulling at each other is provided between the inner diameter side lip and the grease lip. A bent portion for reducing a close contact load applied to a rotation member is provided in an intermediate portion in a longitudinal direction of the inner diameter side lip.

Abstract: To reduce a sliding resistance to the rotation member, and whereby to reduce a torque, a thickness of an inner diameter side lip is formed to be larger than a thickness of an outer diameter side lip, and the outer diameter side lip is formed thinner than the inner diameter side lip in thickness. A depression for inhibiting both the lips from pulling at each other is provided between the inner diameter side lip and the grease lip. A bent portion for reducing a close contact load applied to a rotation member is provided in an intermediate portion in a longitudinal direction of the inner diameter side lip.