Patent US4948277A successfully refreshed from Google Patents.
US4948277A
Expired / Lapsed
US
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Rotating seal with integrated magnetic encoder for a bearing with information sensors
Assignee: NTN Europe SA
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Filing: 1989-12-13
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Granted: 1990-08-14
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Expires: 2009-12-13
Abstract
Abstract An encoder is mounted on a seal of a bearing having a fixed ring and a radially spaced rotating ring. The encoder ring has circumferentially separated teeth on one of its radial surfaces which embed into an elastomer portion of the seal.
Inventors
- 👤 Denis Alff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:16
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78; F16C33/7886; F16C19/00; F16C19/02; F16C19/14; F16C19/18; F16C19/181; F16C19/183; F16C19/184; F16C19/185; F16C33/7869; F16C33/7879; F16C41/00; F16C41/007; G; G01; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/443; F16C2326/00; F16C2326/01; F16C2326/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
151 words
A bearing comprising: a fixed ring; a rotatable ring radially spaced from the fixed ring to provide an annulus between said rings; a seal positioned at least partially in said annulus, the seal comprising an elastomer molded onto an annular brace, the brace having a radially extending annular support forming a thrust surface and an axially extending cylindrical support, the elastomer having portions extending along the axially outside surface of the annular support of the brace, and along the cylindrical support of the brace; an encoder ring mounted on said seal and having an axially extending surface in contact with the elastomer on the cylindrical support and having a radially extending surface in contact with the elastomer on the annular support; and retainers on said encoder axially extending surface which engages the elastomer on the cylindrical support to axially, radially, and angularly retain the encoder; and a sensor facing the encoder.
Claim 2
Dependent Claim
151 words
A bearing comprising: a fixed ring; a rotatable ring radially spaced from the fixed ring to provide an annulus between said rings; a seal positioned at least partially in said annulus, the seal comprising an elastomer molded onto an annular brace, the brace having a radially extending annular support forming a thrust surface and an axially extending cylindrical support, the elastomer having portions extending along the axially outside surface of the annular support of the brace, and along the cylindrical support of the brace; an encoder ring mounted on said seal and having an axially extending surface in contact with the elastomer on the cylindrical support and having a radially extending surface in contact with the elastomer on the annular support; and retainers on said encoder axially extending surface which engages the elastomer on the cylindrical support to axially, radially, and angularly retain the encoder; and a sensor facing the encoder.
Claim 3
Dependent Claim
27 words
A bearing in accordance with claim 1, wherein the encoder ring axially extending surface in contact with the elastomer on the cylindrical support is the outside periphery.
Claim 4
Dependent Claim
27 words
A bearing in accordance with claim 1, wherein the encoder ring axially extending surface in contact with the elastomer on the cylindrical support is the inside periphery.
Claim 5
Dependent Claim
16 words
A bearing in accordance with claim 1, wherein the retainers are teeth embedded in the elastomer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-13 | 1994-02-12 | 1994-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-13 | 1998-02-12 | 1998-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-13 | 2002-02-12 | 2002-08-14 | $7700.00 | Window Closed / Lapsed |