# US 5,350,041 A · Integral ABS exciter ring for cast iron hub

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- Number: US 5,350,041 A
- Document ID: US5350041A
- Status: Granted
- Kind: A
- Application number: 07/975,647
- Filed: 1992-11-13
- Granted: 1994-09-27
- Earliest claimed: 1991-04-05
- Assignees: The Budd Company
- Inventors: David R. Steele; Thomas B. Stimson
- Web page: https://patentgrep.com/patent/US5350041A

## CPC

- B60B 27/0068: {the element being a sensor}
- B60B 27/00: Hubs (non-metallic B60B5/00; of high resiliency B60B9/00)
- F16C 33/581: {integral with other parts, e.g. with housings or machine elements such as shafts or gear wheels}
- F16C 33/586: {outside the space between the races, e.g. end faces or bore of inner ring}
- F16C 41/007: {Encoders, e.g. parts with a plurality of alternating magnetic poles}
- G01P 1/00: Details of instruments
- G01P 1/04: Special adaptations of driving means
- G01P 3/443: {mounted in bearings (bearings F16C)}
- F16C 2326/02: Wheel hubs or castors
- B60B: VEHICLE WHEELS (making wheels or wheel parts by rolling B21H1/00, by forging, hammering or pressing B21K1/28); CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- G01P: MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT (measuring or recording blood flow A61B5/02, A61B8/06; monitoring speed or deceleration of electrically-propelled vehicles B60L3/00; vehicle lighting systems adapted to indicate speed B60Q1/54; determining position or course in navigation, measuring ground distance in geodesy or surveying G01C; combined measuring devices for measuring two or more variables of movement G01C23/00; measuring velocity of sound G01H; measuring velocity of light G01J7/00; measuring direction or velocity of solid objects by reception or emission of radiowaves or other waves and based on propagation effects, e.g. Doppler effect, propagation time, direction of propagation, G01S; measuring speed of nuclear radiation G01T; measuring acceleration of gravity G01V; {measuring or recording the speed of trains B61L23/00; speed indicators incorporated in motor vehicles B60K35/00; measuring frequency or phase G01R; traffic control G08G})

## Abstract

A unitary hub and exciter ring for a motor vehicle equipped with an anti-lock braking system (ABS). The exciter ring is unitarily formed in the hub by machining grooves into the exterior surface of the hub and creating spaced teeth about the circumference of the hub. To ensure roundness and concentricity in the hub, and to ensure close tolerances in spacing between the ABS sensor and the teeth, machining is gaged off of bearing cups mounted within the internal bore of the hub.

## Claims

### Claim 1

A unitary hub and exciter ring for a motor vehicle having an anti-lock braking system, said hub and exciter ring comprising:
a cast hub having a substantially cylindrical body including an outer cylindrical surface and an interior passageway defined by an inner cylindrical surface, means for rotatably mounting said hub to a suspension structure of the motor vehicle for rotation about an axis of rotation; and
an exciter ring unitarily formed with said body of said hub, said exciter ring being defined by a plurality of axial grooves formed in said body and extending axially therealong, said grooves having a radial depth which extends only partially through said body of said hub, said grooves also defining a plurality of axially extending teeth therebetween, said teeth being equidistantly spaced and circumferentially positioned around said body of said hub, said teeth having an outer cylindrical surface coincidental with said outer cylindrical surface of said hub.

### Claim 2 (depends on 1)

A unitary hub and exciter ring as set forth in claim 1 wherein said axial grooves are formed in said outer cylindrical surface of said body.

### Claim 3 (depends on 1)

A unitary hub and exciter ring as set forth in claim 1 wherein said teeth are formed in said body of said hub generally adjacent to one axial end thereof.

### Claim 4 (depends on 1)

A unitary hub and exciter ring as set forth in claim 1 wherein said hub is formed of cast iron.

### Claim 5 (depends on 1)

A unitary hub and exciter ring as set forth in claim 1 wherein said mounting means is located within said passageway and cooperates to define a rotational axis.