US3936100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing mounting system
Assignee: Black and Decker Corp
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Filing: 1974-07-02
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Granted: 1976-02-03
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Expires: 1994-07-02
Abstract
Abstract A system for mounting two bearings on a single shaft to achieve self-alignment without spherical bearings. The invention system comprises a cast-in convex curved seat which cooperates with resilient hold down means, whereby the bearings are protected from damage by the force of assembly while the system is substantially self aligning.
Inventors
- 👤 Robert Gordon Moores, Jr.
- 👤 II Richard Eugene Walton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:15
CPC Classifications
F; F16; F16C; F16C23/00; F16C35/00
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
79 words
A system for mounting a pair of bearings which are on a common shaft, each of said bearings having an outer cylindrical surface, the combination comprising a bearing seat for each of said bearings, each of said bearing seats comprising means to form a substantially line contact with said bearing outer cylindrical surface, and resilient hold down means cooperable with said bearing seats to resiliently secure each of said bearings between its respective seat and said hold down means.
Claim 2
Independent Claim
79 words
A system for mounting a pair of bearings which are on a common shaft, each of said bearings having an outer cylindrical surface, the combination comprising a bearing seat for each of said bearings, each of said bearing seats comprising means to form a substantially line contact with said bearing outer cylindrical surface, and resilient hold down means cooperable with said bearing seats to resiliently secure each of said bearings between its respective seat and said hold down means.
Claim 3
Dependent Claim
39 words
The combination of claim 1, each of said bearing seats being formed in a support member, and said contact means comprising a cast convex cross-sectional surface adapted to contact approximately half of said outer cylindrical surface of said bearings.
Claim 4
Dependent Claim
35 words
The combination of claim 1, and means to prevent axial thrust which might act upon said bearings from displacing said bearings out of their secured positions between said bearing seats and said hold down means.
Claim 5
Dependent Claim
35 words
The combination of claim 3, said preventing means comprising a flange portion of said resilient hold down means adapted to contact the side of at least one of said bearings inwardly of said cylindrical surface.
Claim 6
Dependent Claim
47 words
The combination of claim 3, said bearing seats being formed in a supporting member for said bearings, said preventing means comprising an outrigger portion formed on said supporting member and adapted to contact the side of at least one of said bearings inwardly of said cylindrical surface.
Claim 7
Dependent Claim
33 words
The combination of claim 1, said resilient hold down means comprising a strap for each of said bearings consisting of steel and adapted to be stretched in assembling said bearings on said seats.
Claim 8
Dependent Claim
27 words
The combination of claim 1, said resilient hold down means comprising a hold down member, and resilient means interposed between said hold down member and said bearing.
Claim 9
Dependent Claim
18 words
The combination of claim 7, said resilient means comprising a band consisting of rubber or a rubber-like material.
Claim 10
Dependent Claim
21 words
The combination of claim 7, said resilient means comprising a plurality of individual plugs consisting of rubber or a rubber-like material.
Claim 11
Independent Claim
102 words
A system for mounting a pair of bearings on a common shaft on a pair of supporting members adapted to contact the outside of said bearings, the combination comprising a bearing seat having a convex cross-sectional bearing contact surface formed in said support members and resilient hold down means cooperable with said bearing seat and said support member to hold said bearing against said seat, whereby an essentially line contact is made between each said bearing and its bearing seat, and whereby said pair of bearings on said shaft align themselves as said hold down means are secured to said support members.
Claim 12
Independent Claim
102 words
A system for mounting a pair of bearings on a common shaft on a pair of supporting members adapted to contact the outside of said bearings, the combination comprising a bearing seat having a convex cross-sectional bearing contact surface formed in said support members and resilient hold down means cooperable with said bearing seat and said support member to hold said bearing against said seat, whereby an essentially line contact is made between each said bearing and its bearing seat, and whereby said pair of bearings on said shaft align themselves as said hold down means are secured to said support members.
Claim 13
Dependent Claim
28 words
The combination of claim 10, said resilient hold down means comprising a strap consisting of steel and adapted to be stretched in assembling said bearing on said seat.
Claim 14
Dependent Claim
40 words
The combination of claim 10, said resilient hold down means comprising a hold down member adapted to be secured to said support member and opposite said bearing seat, and resilient means interposed between said hold down member and said bearing.
Claim 15
Dependent Claim
18 words
The combination of claim 12, said resilient means comprising a band consisting of rubber or a rubber-like material.
Claim 16
Dependent Claim
21 words
The combination of claim 12, said resilient means comprising a plurality of individual plugs consisting of rubber or a rubber-like material.
Claim 17
Dependent Claim
42 words
The combination of claim 10, said shaft comprising the armature shaft of the electric motor in a grinding machine with the armature mounted on said shaft between said bearings, and said supporting members comprising part of the housing of said grinding machine.
Claim 18
Dependent Claim
20 words
The combination of claim 10, said bearing comprising a ball bearing having an outer race having an outer cylindrical surface.
Claim 19
Dependent Claim
34 words
The combination of claim 10, and means cooperable with at least one of said bearings to prevent axial thrust on said shaft from displacing said at least one bearing off of its bearing seat.
Claim 20
Dependent Claim
30 words
The combination of claim 17, said axial thrust preventing means comprising an outrigger portion formed on said supporting member adapted to contact the side of said at least one bearing.
Claim 21
Dependent Claim
31 words
The combination of claim 17, said axial thrust preventing means comprising a flange portion of said resilient hold down means adapted to contact the side of said at least one bearing.
Claim 22
Dependent Claim
77 words
A grinding machine having a housing, an electric motor in said housing, a shaft carrying the electric motor armature, a bearing located at each end of said armature, each of said bearings having an outer cylindrical surface, integral bearing seats in said housing for said bearings, said seats each having convex cross-sectional configuration forming line contact against said outer cylindrical surfaces of said bearings, and resilient hold down means adapted to secure said bearings in said seats.
Claim 23
Dependent Claim
77 words
A grinding machine having a housing, an electric motor in said housing, a shaft carrying the electric motor armature, a bearing located at each end of said armature, each of said bearings having an outer cylindrical surface, integral bearing seats in said housing for said bearings, said seats each having convex cross-sectional configuration forming line contact against said outer cylindrical surfaces of said bearings, and resilient hold down means adapted to secure said bearings in said seats.
Claim 24
Dependent Claim
33 words
The combination of claim 20, said resilient hold down means comprising a strap for each of said bearings consisting of steel and adapted to be stretched in assembling said bearings on said seats.
Claim 25
Independent Claim
153 words
A system for mounting a pair of bearings on a common shaft on a pair of support members adapted to contact the outside of said bearings, the combination comprising bearing seats each having a convex cross-sectional bearing contact surface formed in said support members, hold down means securable to said support members and cooperable with said bearing seats to hold said bearings against said seats, whereby essentially line contact is made between each said bearing and its bearing seat, and whereby said pair of bearings on said shaft align themselves as said hold down means is secured to said support members, means cooperable with at least one of said bearings to prevent axial thrust on said shaft from displacing said at least one bearing off of its bearing seat, said axial thrust preventing means comprising flange means on said hold down means adapted to contact the side of at least one said bearing.
Claim 26
Independent Claim
153 words
A system for mounting a pair of bearings on a common shaft on a pair of support members adapted to contact the outside of said bearings, the combination comprising bearing seats each having a convex cross-sectional bearing contact surface formed in said support members, hold down means securable to said support members and cooperable with said bearing seats to hold said bearings against said seats, whereby essentially line contact is made between each said bearing and its bearing seat, and whereby said pair of bearings on said shaft align themselves as said hold down means is secured to said support members, means cooperable with at least one of said bearings to prevent axial thrust on said shaft from displacing said at least one bearing off of its bearing seat, said axial thrust preventing means comprising flange means on said hold down means adapted to contact the side of at least one said bearing.
Claim 27
Independent Claim
168 words
A system for mounting a pair of bearings on a common shaft on a pair of support members adapted to contact the outside of said bearings, the combination comprising bearing seats each having a convex cross-sectional bearing contact surface formed in said support members, hold down means securable to said support members and cooperable with said bearing seats to hold said bearings against said seats, whereby essentially line contact is made between each said bearing and its bearing seat, and whereby said pair of bearings on said shaft align themselves as said hold down means is secured to said support members, means cooperable with at least one of said bearings to prevent axial thrust on said shaft from displacing said at least one bearing off of its bearing seat, said axial thrust preventing means comprising flange means formed on one of said hold down means and said support member associated with said at least one bearing, said flange means contacting the side of said at least one bearing.
Claim 28
Independent Claim
168 words
A system for mounting a pair of bearings on a common shaft on a pair of support members adapted to contact the outside of said bearings, the combination comprising bearing seats each having a convex cross-sectional bearing contact surface formed in said support members, hold down means securable to said support members and cooperable with said bearing seats to hold said bearings against said seats, whereby essentially line contact is made between each said bearing and its bearing seat, and whereby said pair of bearings on said shaft align themselves as said hold down means is secured to said support members, means cooperable with at least one of said bearings to prevent axial thrust on said shaft from displacing said at least one bearing off of its bearing seat, said axial thrust preventing means comprising flange means formed on one of said hold down means and said support member associated with said at least one bearing, said flange means contacting the side of said at least one bearing.
References Cited (Backward Citations)
US3223464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-02 | 1979-08-04 | 1980-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-02 | 1983-08-04 | 1984-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-02 | 1987-08-04 | 1988-02-03 | $7700.00 | Window Closed / Lapsed |