Patent US3603336A successfully refreshed from Google Patents.
Patent US3830633A successfully refreshed from Google Patents.
US3830633A
Expired / Lapsed
US
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Method and apparatus for adjusting tapered roller bearings and for assembling devices employing such bearings as journals
Assignee: Timken Co
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Filing: 1973-09-18
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Granted: 1974-08-20
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Expires: 1993-09-18
Abstract
Abstract A shaft is journaled in a shaft housing by means of a pair of tapered roller bearings, and the assembly of the foregoing structure, including the adjustment of the tapered roller bearings, is performed on an assembly tool having a fixed anvil and a shiftable pilot base which moves against a spring load toward the anvil. In addition, the tool includes a carriage which shifts axially relative to the anvil against a spring bias and may be locked in a fixed axial position. To assemble the foregoing structure the cone assembly of one of the bearings is fitted against an abutment on the shaft, while the cup of that bearing is seated in the housing. Next the shaft is supported on the shiftable carriage of the tool and thereafter the housing is fitted over the shaft and supported on the pilot base, with its cup receiving the cone assembly. Next an axial force is applied to the housing in the direction which seats the rollers of the bearing, so that the force is transmitted to the shaft through the bearing. The force depresses the pilot base against the anvil while depressing the carriage in opposition to the spring load thereon. Once the pilot base engages the anvil, the carriage is locked in position, and the housing is allowed to return to its initial position so that a prescribed or working point clearance exists between the anvil and pilot base and likewise in the bearing. With the other cup seated in the housing, the remaining cone assembly, which is shiftable along the shaft to effect adjustment of the two bearings, is advanced along the shaft toward its cup, and when the rollers of that bearing seat, a portion of the axial force is transmitted to the housing, and the housing is again depressed along with the pilot base. The advancement is continued until the clearance in the first installed bearing reaches a prescribed valve, and that clearance is ascertained by measuring the distance between the pilot base and the anvil. The shaft is rotated slowly as the rollers of the two bearings are seated against their respective cups and cones to insure proper seating.
Inventors
- 👤 W Harbottle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:42
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/54; F16C25/00; F16C25/06; F16C35/00; F16C35/04; F16C35/06; F16C35/061; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/497; Y10T29/53; Y10T29/53104
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
128 words
A tool for adjusting bearings which journal a shaft in a housing such that radial and axial loads are taken and have races on the housing and shaft, respectively, and rolling elements interposed between and engaged with raceways on the races, said tool comprising a fixed anvil, a pilot base adjacent to the anvil and being shiftable to and from the anvil, pilot means on the pilot base for engaging the housing and positioning it in a predetermined position on the pilot base, a carriage shiftable relative to the anvil in the same direction that the pilot base shifts, shaft positioning means carried by the carriage for engaging and axially positioning the shaft, and locking means for holding the carriage in a fixed position relative to the anvil.
Claim 2
Dependent Claim
128 words
A tool for adjusting bearings which journal a shaft in a housing such that radial and axial loads are taken and have races on the housing and shaft, respectively, and rolling elements interposed between and engaged with raceways on the races, said tool comprising a fixed anvil, a pilot base adjacent to the anvil and being shiftable to and from the anvil, pilot means on the pilot base for engaging the housing and positioning it in a predetermined position on the pilot base, a carriage shiftable relative to the anvil in the same direction that the pilot base shifts, shaft positioning means carried by the carriage for engaging and axially positioning the shaft, and locking means for holding the carriage in a fixed position relative to the anvil.
Claim 3
Dependent Claim
39 words
A tool according to claim 1 and further characterized by first springs for urging the pilot base and pilot means in the axial direction of the shaft, and second springs for urging the carriage in the same axial direction.
Claim 4
Dependent Claim
35 words
A tool according to claim 2 wherein the first springs urge the pilot base away from the anvil, and further characterized by measuring means for measuring the clearance between the pilot base and the anvil.
Claim 5
Dependent Claim
31 words
A tool according to claim 2 wherein the shaft positioning means comprises a spindle journaled on the carriage for rotation about an axis coincident with the axis of the supported shaft.
Claim 6
Dependent Claim
42 words
A tool according to claim 2 and further characterized by press means for exerting an axially directed force on the housing sufficient in magnitude to overcome the forces exerted by first springs, whereby the pilot base is shifted relative to the anvil.
Claim 7
Dependent Claim
31 words
A tool according to claim 3 and fuRther characterized by limit means for limiting the distance the first springs urge the pilot base away from the anvil to a desired clearance.
Claim 8
Dependent Claim
356 words
A process for adjusting a pair of indirectly mounted single row tapered roller bearings which journal a shaft in a housing, the bearings having cups positioned against fixed abutments in the housing, cones engaged with the shaft, and tapered rollers engaged with opposed raceways on the cups and cones, one of the cones being axially positioned against a fixed abutment on the shaft and the other cone being shiftable axially along the shaft to effect adjustment of the bearings; said process comprising supporting the shaft on a spring loaded carriage which shifts axially against the spring load and relative to an anvil; supporting the housing on a spring loaded pilot base which also shifts axially and relative to the anvil; applying a force to the housing to cause it to move the pilot base against the force of the spring load on the pilot base, the movement being sufficient in magnitude and the force being great enough to cause the rollers of the bearing located adjacent to the fixed abutment on the shaft to seat against the raceways of the cup and cone for that bearing so as to load that bearing in thrust and cause the shaft to move against the spring load on the carriage; locking the carriage in a fixed position after it has been moved by the force applied to the shaft; thereafter releasing the force on the housing and allowing the spring load on the pilot base to move the pilot base away from the anvil, whereby the cup and cone of the bearing adjacent to shaft abutment are offset from their roller engaging positions; applying an axially directed force to the shiftable cone to cause the rollers of the bearing of which that cone forms a part to seat against the raceways of the cup and cone for that bearing so that the force will be transmitted through that bearing to the housing and pilot base, whereby the pilot base moves relative to the anvil; and comparing the axial position of the pilot base with the axial position it assumed upon the locking of the carriage in the fixed position.
Claim 9
Dependent Claim
356 words
A process for adjusting a pair of indirectly mounted single row tapered roller bearings which journal a shaft in a housing, the bearings having cups positioned against fixed abutments in the housing, cones engaged with the shaft, and tapered rollers engaged with opposed raceways on the cups and cones, one of the cones being axially positioned against a fixed abutment on the shaft and the other cone being shiftable axially along the shaft to effect adjustment of the bearings; said process comprising supporting the shaft on a spring loaded carriage which shifts axially against the spring load and relative to an anvil; supporting the housing on a spring loaded pilot base which also shifts axially and relative to the anvil; applying a force to the housing to cause it to move the pilot base against the force of the spring load on the pilot base, the movement being sufficient in magnitude and the force being great enough to cause the rollers of the bearing located adjacent to the fixed abutment on the shaft to seat against the raceways of the cup and cone for that bearing so as to load that bearing in thrust and cause the shaft to move against the spring load on the carriage; locking the carriage in a fixed position after it has been moved by the force applied to the shaft; thereafter releasing the force on the housing and allowing the spring load on the pilot base to move the pilot base away from the anvil, whereby the cup and cone of the bearing adjacent to shaft abutment are offset from their roller engaging positions; applying an axially directed force to the shiftable cone to cause the rollers of the bearing of which that cone forms a part to seat against the raceways of the cup and cone for that bearing so that the force will be transmitted through that bearing to the housing and pilot base, whereby the pilot base moves relative to the anvil; and comparing the axial position of the pilot base with the axial position it assumed upon the locking of the carriage in the fixed position.
Claim 10
Dependent Claim
52 words
The process according to claim 7 wherein the pilot base seats against the anvil when the carriage is locked in position, and wherein the axial position of the pilot base as the force is applied to the shiftable cone is compared by measuring the spacing between the pilot base and the anvil.
Claim 11
Dependent Claim
29 words
The process according to claim 7 and further characterized by rotating the shaft relative to the housing as the forces are applied to the housing and the shiftable cone.
Claim 12
Dependent Claim
280 words
A process for adjusting bearing means between an inner member and an outer member and including first and second rows of rolling elements which contact raceways carried by the inner and outer members with the one row being capable of taking thrust loading in one axial direction and the other row being capable of taking thrust loading in the other axial direction, said process comprising: causing the rolling elements of the first row to seat against the raceways for that row by applying a force to one of the members and an opposite reaction force to the other member so that the force is transmitted between the members through the rolling elements of the first row; holding said other member in a fixed axial position with respect to a first reference means located remote from the first row while the rolling elements of the first row remain seated; moving said one member with respect to said other member in the axial direction opposite to that which causes the rolling elements of the first row to seat against its raceways while said other member is maintained in the fixed axial position with respect to the first reference means so that a clearance is established between the rolling elements of the first row and their raceways; causing the rolling elements of the second row to seat against the raceways for that row; moving the rolling elements of the second row in an axial direcTion to reduce the clearance in the first bearing; determining the adjustment of the first bearing at the first reference means; and terminating axial movement of the rollers of the second bearing when the adjustment reaches a prescribed value.
Claim 13
Dependent Claim
280 words
A process for adjusting bearing means between an inner member and an outer member and including first and second rows of rolling elements which contact raceways carried by the inner and outer members with the one row being capable of taking thrust loading in one axial direction and the other row being capable of taking thrust loading in the other axial direction, said process comprising: causing the rolling elements of the first row to seat against the raceways for that row by applying a force to one of the members and an opposite reaction force to the other member so that the force is transmitted between the members through the rolling elements of the first row; holding said other member in a fixed axial position with respect to a first reference means located remote from the first row while the rolling elements of the first row remain seated; moving said one member with respect to said other member in the axial direction opposite to that which causes the rolling elements of the first row to seat against its raceways while said other member is maintained in the fixed axial position with respect to the first reference means so that a clearance is established between the rolling elements of the first row and their raceways; causing the rolling elements of the second row to seat against the raceways for that row; moving the rolling elements of the second row in an axial direcTion to reduce the clearance in the first bearing; determining the adjustment of the first bearing at the first reference means; and terminating axial movement of the rollers of the second bearing when the adjustment reaches a prescribed value.
Claim 14
Dependent Claim
44 words
A process according to claim 10 and further characterized by moving said one member with second reference means which remain in a fixed axial position with respect to said one member as said one member moves to change the clearance in the first bearing.
Claim 15
Dependent Claim
65 words
A process according to claim 11 wherein the adjustment of the first row is determined by comparing the relative positions of the first and second reference means at the time when the rolling elements of the first row are seated against their raceways and at the time the rolling elements of the second row are moved axially to reduce the clearance in the first row.
Claim 16
Dependent Claim
24 words
A process according to claim 11 wherein the adjustment of the first row is determined by ascertaining the distance between the two reference means.
Claim 17
Dependent Claim
46 words
A process according to claim 13 wherein the second reference means seat against the first reference means when rollers of the first row are seated against their raceways and said other member is held in a fixed axial position with respect to the first reference means.
Claim 18
Dependent Claim
281 words
A process for adjusting bearing means between an inner member and an outer member and including first and second rows of rolling element which contact raceways carried by the inner and outer members with the one row being capable of taking thrust loading in one axial direction and the other row being capable of taking thrust loading in the other axial direction, said process comprising: causing the rolling elements of the first row to seat against the raceways for that row; applying a force to one of the members in the direction which causes the force to be transferred to the other member through the seated rolling elements of the first row, the force being of sufficient magnitude to move the two members and the first row in unison in one axial direction against a spring-like reaction force applied to said other member; thereafter holding said other member in a fixed axial position; thereafter moving said one member in the axial direction opposite to that which caused the rolling elements of the first row to seat against their raceways, whereby a clearance is established between the rolling elements of the first row and its raceways; causing the rolling elements of second row to seat against the raceways for the second row; thereafter moving the rolling elements of the second row axially relative to said other member to cause said one member to move axially with respect to said other member in the direction which reduces the clearance of said first row; determining the adjustment of the first row remote therefrom; and terminating the relative axial movement of the rolling elements of the second row when the adjustment reaches a prescribed magnitude.
Claim 19
Dependent Claim
281 words
A process for adjusting bearing means between an inner member and an outer member and including first and second rows of rolling element which contact raceways carried by the inner and outer members with the one row being capable of taking thrust loading in one axial direction and the other row being capable of taking thrust loading in the other axial direction, said process comprising: causing the rolling elements of the first row to seat against the raceways for that row; applying a force to one of the members in the direction which causes the force to be transferred to the other member through the seated rolling elements of the first row, the force being of sufficient magnitude to move the two members and the first row in unison in one axial direction against a spring-like reaction force applied to said other member; thereafter holding said other member in a fixed axial position; thereafter moving said one member in the axial direction opposite to that which caused the rolling elements of the first row to seat against their raceways, whereby a clearance is established between the rolling elements of the first row and its raceways; causing the rolling elements of second row to seat against the raceways for the second row; thereafter moving the rolling elements of the second row axially relative to said other member to cause said one member to move axially with respect to said other member in the direction which reduces the clearance of said first row; determining the adjustment of the first row remote therefrom; and terminating the relative axial movement of the rolling elements of the second row when the adjustment reaches a prescribed magnitude.
Claim 20
Dependent Claim
29 words
The process according to claim 15 wherein said one member is positioned against and moves with shiftable element, and wherein the bearing adjustment is measured at the shiftable element.
Claim 21
Dependent Claim
54 words
The process according to claim 15 wherein the shiftable element seats against an anvil when said other member is held in the fixed axial position and before said one member is moved in the opposite axial direction; and wherein the adjustment is determined by measuring the distance between the shiftable element and the anvil.
References Cited (Backward Citations)
US2101130A
Cited
US2762112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |