Abstract: An axial lip is formed on a side surface of a seal of a rolling bearing which faces a slinger so as to expand outwards of the bearing. A projecting portion is formed on a flat surface of the slinger which faces the seal by flexing the slinger in an axial direction so as to cause the slinger to project inwards of the bearing, and a distal end of the axial lip is brought into contact with the flat surface of the slinger in a position lying further radially outwards than the projecting portion on the slinger. A radially inward inner surface of the axial lip of the axial lip and a radially outer side sloping surface formed radially outwards of the projecting portion on the slinger form a labyrinth, and a portion of the side surface of the seal which lies further radially inwards than the position where the axial lip is formed and an apex portion of the projecting portion on the slinger form a labyrinth.

Abstract: In a sealing device for a bearing, a sub-seal lip is configured such that a slide contact surface is formed like an annular band. As the rotation speed of the bearing increases, the width of the slide contact surface is reduced by a centrifugal force. Thus, sliding friction can effectively be minimized. The torque of the bearing can be prevented from increasing at high-speed rotation. Even when the centrifugal force increases somewhat, only reduction in the width of the slide contact surface is caused. Thus, a slide-contacted state can be maintained. Consequently, the problem of floating-up of the sub-seal lip from a slinger is difficult to occur.

Abstract: An axial lip is formed on a side surface of a seal of a rolling bearing which faces a slinger so as to expand outwards of the bearing. A projecting portion is formed on a flat surface of the slinger which faces the seal by flexing the slinger in an axial direction so as to cause the slinger to project inwards of the bearing, and a distal end of the axial lip is brought into contact with the flat surface of the slinger in a position lying further radially outwards than the projecting portion on the slinger. A radially inward inner surface of the axial lip of the axial lip and a radially outer side sloping surface formed radially outwards of the projecting portion on the slinger form a labyrinth, and a portion of the side surface of the seal which lies further radially inwards than the position where the axial lip is formed and an apex portion of the projecting portion on the slinger form a labyrinth.

Abstract: In a sealing device for a bearing, a sub-seal lip is configured such that a slide contact surface is formed like an annular band. As the rotation speed of the bearing increases, the width of the slide contact surface is reduced by a centrifugal force. Thus, sliding friction can effectively be minimized. The torque of the bearing can be prevented from increasing at high-speed rotation. Even when the centrifugal force increases somewhat, only reduction in the width of the slide contact surface is caused. Thus, a slide-contacted state can be maintained. Consequently, the problem of floating-up of the sub-seal lip from a slinger is difficult to occur.

Abstract: In a self-aligning bearing positioning and supporting one end of a rotation shaft in an axial direction and allowing the rotation shaft to bend, the bearing is structured as a double row cylindrical roller bearing with aligning ring, a first row of cylindrical roller group is positioned by being held in an axial direction between a radially inward flange provided in an intermediate portion in an axial direction of an outer ring having an outer peripheral surface formed in a spherical surface shape, and a flange provided in one outer end of two inner rings, and a second row of cylindrical roller group is positioned by being held in the axial direction between the flange of the outer ring and a flange provided in another outer ends of the two inner rings.

Abstract: In a torque releasing device, a bearing is composed of an angular contact ball bearing, raceway surfaces of which are applied with a pre-load in order that the occurrence of fretting at the bearing during torque transmission may be prevented. Thus is ensured that the torque is securely released.

Abstract: A roll apparatus provided at a continuous caster for transferring a cast piece to a predetermined location includes: at least three divided rolls arranged to align concentrically and in an axial direction thereof to constitute a roll forming a cast piece transfer path. At least one end portion of at least of the divided rolls is supported by a cylindrical roller bearing of a full roller type.

Abstract: In a self-aligning bearing positioning and supporting one end of a rotation shaft in an axial direction and allowing the rotation shaft to bend, the bearing is structured as a double row cylindrical roller bearing with aligning ring, a first row of cylindrical roller group is positioned by being held in an axial direction between a radially inward flange provided in an intermediate portion in an axial direction of an outer ring having an outer peripheral surface formed in a spherical surface shape, and a flange provided in one outer end of two inner rings, and a second row of cylindrical roller group is positioned by being held in the axial direction between the flange of the outer ring and a flange provided in another outer ends of the two inner rings.

Abstract: In a torque releasing device, a bearing is composed of an angular contact ball bearing, raceway surfaces of which are applied with a pre-load in order that the occurrence of fretting at the bearing during torque transmission may be prevented. Thus is ensured that the torque is securely released.

Abstract: A roll apparatus provided at a continuous caster for transferring a cast piece to a predetermined location includes: at least three divided rolls arranged to align concentrically and in an axial direction thereof to constitute a roll forming a cast piece transfer path. At lease one end portion of at least of the divided rolls is supported by a cylindrical roller bearing of a full roller type.