Wear sleeves for sealed bearings

Claim 2

A sealed shaft assembly comprising a shaft member, a housing member for said shaft member, a wear sleeve mounted in said housing, a connection between one of said members and said sleeve, a packing gland mounted in sealing contact with said sleeve and the other of said members, said sleeve at both ends of said sleeve extending beyond said packing gland, a space between said wear sleeve and said one member said space being sealed at both ends of said sleeve by a flexible boot connecting said one member to said sleeve.

Claim 3

The assembly of claim 1 in which said boots, positioned at each end of said sleeve, enclose the space between said sleeve and said one member.

Claim 4

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 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 sleeve mounted at one end thereof on said shaft for rotation with said shaft, a flexible boot connecting each end of the said sleeve to said shaft and forming an enclosed space between said sleeve and said shaft, a packing between said sleeve and said housing, said packing being in sealing contact with said sleeve.

Claim 5

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 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 sleeve mounted at one end thereof on said shaft for rotation with said shaft, a flexible boot connecting each end of the said sleeve to said shaft and forming an enclosed space between said sleeve and said shaft, a packing between said sleeve and said housing, said packing being in sealing contact with said sleeve.

Claim 6

A sealed shaft assembly comprising a shaft, a housing for said shaft, a wear sleeve mounted on said shaft, a flexible boot at each end of said wear sleeve connected to said shaft and said wear sleeve and forming an enclosed space between said wear sleeve and said shaft, a sleeve between said sleeve and said housing in sealing contact with said gland, said sleeve extending above and below said gland, means on said shaft and sleeve for rotation of said sleeve with said shaft.

Claim 7

A sealed shaft assembly comprising a shaft, a housing for said shaft, a wear sleeve mounted on said shaft, a flexible boot at each end of said wear sleeve connected to said shaft and said wear sleeve and forming an enclosed space between said wear sleeve and said shaft, a sleeve between said sleeve and said housing in sealing contact with said gland, said sleeve extending above and below said gland, means on said shaft and sleeve for rotation of said sleeve with said shaft.

Claim 8

In the assembly of claim 4, a bearing mounted in said housing between said shaft and said housing, a fluid inlet to said housing, said gland and sleeve positoned in said housing between said inlet and said bearing.

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, a flexible boot connected to each end of said sleeve and to said shaft forming an enclosed space between said sleeve and said shaft, a packing gland in sealing contact with the wear sleeve and said housing.

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, a flexible boot connected to each end of said sleeve and to said shaft forming an enclosed space between said sleeve and said shaft, a packing gland in sealing contact with the wear sleeve and said housing.

Claim 11

A fluid motor which includes a rotor, a stator, and a stator housing, a shaft connected to said rotor for rotation by said rotor, a housing for said shaft connected to said stator housing, a fluid inlet into said stator housing, and a fluid outlet from said stator into said shaft housing, thrust bearings mounted in said shaft housing between said shaft housing and said shaft, seal mounted in said shaft housing between said thrust bearing and said shaft means, a sleeve mounted at one end thereof on said shaft for rotation with said shaft, a flexible boot connected at each end of said sleeve to said shaft forming an enclosed space between said shaft and said sleeve, a seal between said sleeve and said housing.

Claim 12

A fluid motor which includes a rotor, a stator, and a stator housing, a shaft connected to said rotor for rotation by said rotor, a housing for said shaft connected to said stator housing, a fluid inlet into said stator housing, and a fluid outlet from said stator into said shaft housing, thrust bearings mounted in said shaft housing between said shaft housing and said shaft, seal mounted in said shaft housing between said thrust bearing and said shaft means, a sleeve mounted at one end thereof on said shaft for rotation with said shaft, a flexible boot connected at each end of said sleeve to said shaft forming an enclosed space between said shaft and said sleeve, a seal between said sleeve and said housing.

Claim 13

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, a seal between said wear sleeve and one of said members, a flexible boot connected to the other end of said sleeve and said shaft.

Claim 14

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, a seal between said wear sleeve and one of said members, a flexible boot connected to the other end of said sleeve and said shaft.

Claim 15

In the assembly of claim 8, 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 16

The assembly of claim 9 in which said bearing is a thrust bearing.

Claim 17

A progressing cavity fluid motor which includes a rotor, a stator, and a stator housing, tubular shaft means connected to said rotor, a shaft housing for said shaft means, a fluid inlet into said stator and a fluid outlet 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 bearings and said fluid outlet, a sleeve mounted at one end thereof on said shaft for rotation with said shaft, said seal positioned between said sleeve and said shaft, a flexible boot connected to the other end of said sleeve and to said shaft.

Claim 18

A progressing cavity fluid motor which includes a rotor, a stator, and a stator housing, tubular shaft means connected to said rotor, a shaft housing for said shaft means, a fluid inlet into said stator and a fluid outlet 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 bearings and said fluid outlet, a sleeve mounted at one end thereof on said shaft for rotation with said shaft, said seal positioned between said sleeve and said shaft, a flexible boot connected to the other end of said sleeve and to said shaft.

Claim 19

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 flexible sleeve connected to said boot and said shaft at the other end of said sleeve.

Claim 20

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 flexible sleeve connected to said boot and said shaft at the other end of said sleeve.