Wear sleeves for sealed bearings

Claim 2

A sealed shaft assembly comprising a shaft member, a housing member for said shaft, a wear sleeve mounted in said housing and connected to said shaft at one end of said sleeve, said sleeve being otherwise unsupported by either of said members, a seal between said wear sleeve and one of said members mounted at one end and one surface of said wear sleeve, the sleeve above said seal being spaced from said members, a packing gland mOunted in sealing contact with said sleeve and the other of said members.

Claim 3

A sealed shaft assembly comprising a shaft member, a housing member for said shaft, a wear sleeve mounted in said housing and connected to said shaft at one end of said sleeve, said sleeve being otherwise unsupported by either of said members, a seal between said wear sleeve and one of said members mounted at one end and one surface of said wear sleeve, the sleeve above said seal being spaced from said members, a packing gland mOunted in sealing contact with said sleeve and the other of said members.

Claim 4

A sealed shaft assembly comprising a shaft member, a housing member for said shaft, a wear sleeve mounted in said housing and connected to said shaft at one end of said sleeve, said sleeve being otherwise unsupported by either of said members, a seal between said wear sleeve and one of said members mounted at one end and one surface of said wear sleeve, the sleeve above said seal being spaced from said members, a packing gland mOunted in sealing contact with said sleeve and the other of said members.

Claim 5

In the assembly of claim 1, a bearing mounted in said housing between said shaft and said housing, a fluid inlet to said housing, said seals and wear sleeve positioned in said housing between said inlet and said bearing.

Claim 6

The assembly of claim 2 in which said bearing is a thrust bearing.

Claim 7

A progressing cavity fluid motor which includes a rotor, a stator, and a stator housing, tubular shaft means connected to said rotor, a housing for said shaft means, a fluid inlet into said stator and a fluid outlet from said stator, a fluid passageway from said stator, a fluid passageway from said stator outlet and into said tubular shaft means, radial and thrust bearings mounted in said shaft housing between said shaft housing and said shaft the improvement which comprises a seal mounted in said shaft housing between said thrust bearing and said fluid outlet, a sleeve mounted at one end thereof on said shaft for rotation with said shaft, a seal between one end and said shaft, the said sleeve being free and spaced from said shaft at the other end and a packing between said sleeve and said housing.

Claim 8

A progressing cavity fluid motor which includes a rotor, a stator, and a stator housing, tubular shaft means connected to said rotor, a housing for said shaft means, a fluid inlet into said stator and a fluid outlet from said stator, a fluid passageway from said stator, a fluid passageway from said stator outlet and into said tubular shaft means, radial and thrust bearings mounted in said shaft housing between said shaft housing and said shaft the improvement which comprises a seal mounted in said shaft housing between said thrust bearing and said fluid outlet, a sleeve mounted at one end thereof on said shaft for rotation with said shaft, a seal between one end and said shaft, the said sleeve being free and spaced from said shaft at the other end and a packing between said sleeve and said housing.

Claim 9

A sealed bearing assembly for a rotating shaft subject to cyclic forces acting transversely to the axis of said shaft comprising a housing, a shaft extending beyond an end of said housing, a fluid inlet to said housing, a bearing between said shaft and said housing, a second bearing in said housing between said shaft and said housing, a wear sleeve and seal assembly between said fluid inlet and said first-named bearing, said wear sleeve and seal assembly comprising a packing gland in sealing contact with the wear sleeve and said housing, said wear sleeve connected at one end to said shaft, a seal between the said end of the sleeve and said shaft, the wear sleeve beyond said seal being spaced from and unsupported by said shaft.

Claim 10

A sealed bearing assembly for a rotating shaft subject to cyclic forces acting transversely to the axis of said shaft comprising a housing, a shaft extending beyond an end of said housing, a fluid inlet to said housing, a bearing between said shaft and said housing, a second bearing in said housing between said shaft and said housing, a wear sleeve and seal assembly between said fluid inlet and said first-named bearing, said wear sleeve and seal assembly comprising a packing gland in sealing contact with the wear sleeve and said housing, said wear sleeve connected at one end to said shaft, a seal between the said end of the sleeve and said shaft, the wear sleeve beyond said seal being spaced from and unsupported by said shaft.