US 2002/0163137 A1Published application

Installation structure of bearing seal

AssigneeUchiyama Manufacturing Corp.

InventorKoji Esumi

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Abstract

A mount construction for a bearing seal capable of easily and surely installing the bearing seal in a bearing and, after installation, developing a stable seal performance by suppressing an extracting force, wherein the bearing seal formed by disposing an elastic member having a lip part on one side face of a reinforcement ring is press-fitted into a ring body or radially reduced ring body in the state that the lip part is bent in the direction apart from the outer peripheral edge of the reinforcement ring on the elastic member side of the bearing seal and, while maintaining the state, the bearing seal is extruded from the inside of the ring body or the radially reduced ring into the bearing with care so that the lip part is not caught between the reinforcement ring and the bearing to install on the bearing.

Claims5

Dependent claims

A mount construction for a bearing seal mounting a bearing seal on a bearing by engaging the bearing seal with a fitting groove formed around an inner periphery of an outer race of the bearing, thereby sealing the inside of the bearing off the outside, wherein

the said bearing seal includes:
a reinforcing ring;
and
an elastic element disposed on one side of said reinforcing ring and having a lip projecting radially and outwardly beyond the outer peripheral edge of said reinforcing ring;
the said bearing seal is pressed into a ring element having its inner diameter that is greater than the outer diameter of said reinforcing ring and is smaller than the bore diameter of the outer race of the bearing from the side of said reinforcing ring, thereby the said lip of said elastic element is bent toward the direction away from the outer peripheral edge of said reinforcing ring on the side of the said bearing seal at which the said elastic element is located;
said ring element is brought into engagement with the bore of the outer race of the bearing in such a way that the side on which said elastic element is located is directed toward the inside of the bearing;
the bearing seal is pushed out of said ring element and into the bore of the outer race of the bearing, with the said lip is placed in the state of being bent toward the direction away from the outer peripheral edge of said reinforcing ring on the side of the said bearing seal at which the said elastic element is located, and with the side of said elastic element being directed toward the inside of the bearing;
and
said lip is thereby brought into engagement with the fitting groove on the outer race of the bearing, whereby the bearing seal is secured to the bearing.

6 more elements

the said bearing seal includes:
a reinforcing ring;
and
an elastic element disposed on one side of said reinforcing ring and having a lip projecting radially and outwardly beyond the outer peripheral edge of said reinforcing ring;
a diameter-squeezing ring is mounted around the said bearing seal, wherein the inner diameter of said diameter-squeezing ring, as it is squeezed, is larger than the outer diameter of said reinforcing ring and smaller than the bore diameter of the outer race of the bearing, thereby the lip of the said elastic element is bent toward the direction away from the outer peripheral edge of said reinforcing ring on the side of the said bearing seal at which the said elastic element is located;
said diameter-squeezing ring is brought into engagement with the bore of the outer race of the bearing in such a way that the side on which said elastic element is located is directed toward the inside of the bearing;
the bearing seal is pushed out of said diameter-squeezing ring into the bore of the outer race of the bearing, with the said lip is placed in the state of being bent toward the direction away from the outer peripheral edge of said reinforcing ring on the side of the said bearing seal at which the said elastic element is located, and with the side of said elastic element being directed toward the inside of the bearing;
and
said lip is thereby brought into engagement with the fitting groove on the outer race of the bearing, whereby the bearing seal is secured to the bearing.

6 more elements

Dependencies are inferred from the claim text.