Patent classifications
F16J15/3264
Plastic slinger with contacting bumper feature with labyrinth
A seal assembly includes a housing defining a bore and a shaft received in the bore. A seal member is secured to the housing for sealing a gap between the housing and the shaft. A slinger is secured to the shaft. The slinger being made from plastic and including a first semi-circular part and a second semi-circular part that is secured to the first semi-circular part. The slinger includes a radially extending wall portion with a raised bumper feature at a radially outer surface opposing the seal member. The slinger further includes an axially protruding labyrinth feature extending from the radially extending wall portion and toward the seal member. The first semi-circular part and the second semi-circular part can be snap fit to one another.
LOW-FRICTION SEALING DEVICE AND ROLLING BEARING EQUIPPED THEREWITH
A sealing device for insertion between a first and a second bearing part. The device including a rotating first shield, a stationary second shield, and an elastomeric sealing element having a first and a second sealing lip. The first shield includes a peripheral section having a first and a second axially extending sleeve portion connected by a first radially extending flange portion. The second shield including a support section for the lips, having an intermediate frustoconical portion that connects a second flange portion of the peripheral section to a mounting section of the second shield. The intermediate portion is positioned axially at a step formed by the first flange portion and by the first sleeve portion. The mounting section is arranged partially inside the second sleeve portion to form an axially directed labyrinth seal that is in metal-to-metal contact with the second bearing.
SEALING STRUCTURE
A sealing structure allows for formation of a side lip, as well as a labyrinth structure between an oil seal and a torsional vibration damper, even when a reinforcing ring has a short inward flange part. The sealing body 120 includes a side lip 124 extending from near a distal end of an inward flange part 112 radially inward and further toward an air side (A) than a dust lip 122 to a position not as far as the outer circumferential surface of a tubular part 210. An annular member 250 is further provided, which is fixed to the outer circumferential surface of the tubular part 210 further on the air side (A) than the side lip 124 and covering an outer circumferential surface of the side lip 124 such that there is a gap between the annular member 250 itself and the outer circumferential surface of the side lip 124.
Sealing system for a moving shaft
A sealing system includes a shaft seal plate, a seal guide having a tab, and a shaft seal coupled to the seal guide. A guide slot is formed in the shaft seal plate, and the tab extends into the guide slot. The shaft seal is configured to form and substantially maintain a seal at an axle bar as the axle bar rotates and pivots. The seal guide is configured to translate relative to the shaft seal plate as the axle bar pivots, and the tab is configured to block a rotation of the seal guide and the shaft seal relative to the shaft seal plate as the axle bar rotates.
Sealing system for a moving shaft
A sealing system includes a shaft seal plate, a seal guide having a tab, and a shaft seal coupled to the seal guide. A guide slot is formed in the shaft seal plate, and the tab extends into the guide slot. The shaft seal is configured to form and substantially maintain a seal at an axle bar as the axle bar rotates and pivots. The seal guide is configured to translate relative to the shaft seal plate as the axle bar pivots, and the tab is configured to block a rotation of the seal guide and the shaft seal relative to the shaft seal plate as the axle bar rotates.
Sealing device for a rolling bearing
A sealing device including a first annular shield fixable to a first ring, a second annular shield facing the first and fixable to a second ring. A first shield annular sliding sealing lip cooperating with the second ring. At least first and second annular non-contacting sealing lips of the second shield. The first non-contacting lip includes a first portion extending in projection, and a second end extending axially and radially projecting from the first portion; being tapered towards a free end thereof, axially away from the first ring, which come into contact axially when the first annular lip is bent towards the first shield. The second non-contacting lip extends axially projecting from the first shield from the same side as the second portion of the first lip and beyond it and forms towards the first lip an annular collecting channel of possible contaminants which pass beyond the first annular lip.
Sealing device for a rolling bearing
A sealing device including a first annular shield fixable to a first ring, a second annular shield facing the first and fixable to a second ring. A first shield annular sliding sealing lip cooperating with the second ring. At least first and second annular non-contacting sealing lips of the second shield. The first non-contacting lip includes a first portion extending in projection, and a second end extending axially and radially projecting from the first portion; being tapered towards a free end thereof, axially away from the first ring, which come into contact axially when the first annular lip is bent towards the first shield. The second non-contacting lip extends axially projecting from the first shield from the same side as the second portion of the first lip and beyond it and forms towards the first lip an annular collecting channel of possible contaminants which pass beyond the first annular lip.
Dynamic radial seal
A seal arrangement for sealing a radial gap between an inner component and an outer component coaxially mounted around the inner component is provided. The inner component rotates about a rotation axis. The arrangement provides a radial seal connectably mounted to the inner component. The radial seal has a sealing lip that bears against a counterface formed by a radially inner surface of the outer component. When the seal arrangement is stationary, the sealing lip bears against the counterface with an initial lip force. The sealing lip is pivotably arranged in a radial cross section around a pivot point, and is in connection with a counterweight. The sealing lip and the counterweight are arranged in different axial regions from the pivot point and are adapted such that during rotation of the radial seal, a greater centrifugal force acts on the counterweight than on the sealing lip.
SEALING DEVICE
A sealing device includes: a sealing device main body to be attached to an outer periphery side member; and a slinger to be attached to an inner periphery side member. The sealing device main body includes: an annular reinforcement ring centered on an axis; and an annular elastic body part that is made of an elastic body attached to the reinforcement ring and is centered on the axis. A through hole that passes through a portion between an internal space side surface and an atmosphere side surface of the reinforcement ring is formed in the reinforcement ring, and a positioning part for fixing the position of the reinforcement ring at the time of vulcanization is formed on an internal space side surface of the elastic body part. In the sealing device, the through hole and the positioning part are formed at positions separated in the radial direction.
Flooded metallic bearing isolator
A bearing isolator capable of operating under flooded conditions is disclosed. The bearing isolator can include a stator, a rotor, a unitizing element and a sealing element, the stator and rotor form a cavity in which the unitizing element is disposed, and features of the unitizing element with features of the stator and rotor to ensure the stator and rotor stay together while still maintaining a gap between the two components to avoid metal on metal contact. The sealing element resides against a surface of the stator and includes a radially-inward extending lip seal that rides against a running surface of the rotor for improved sealing.