# US 8,783,957 B2 · ABS motor for vehicles

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- Number: US 8,783,957 B2
- Document ID: US8783957B2
- Status: Granted
- Kind: B2
- Application number: 13/389,916
- Filed: 2010-08-11
- Published: 2012-06-07
- Granted: 2014-07-22
- Earliest claimed: 2009-08-11
- Assignees: LG Innotek Co., Ltd.
- Applicants: Kyungsang Park; Musung Jung
- Inventors: Kyungsang Park; Musung Jung
- Web page: https://patentgrep.com/patent/US8783957B2

## CPC

- H02K 7/08: Structural association with bearings
- B60T 8/4031: {Pump units characterised by their construction or mounting (pump units in combination with valve blocks B60T8/36)}
- H02K 7/075: using crankshafts or eccentrics
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})
- B60T: VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL (electrodynamic brake systems for vehicle, in general B60L; brakes per se, i.e. devices where braking effect occurs, including ultimate brake actuators, F16D); ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES

## Abstract

The present invention relates to an ABS motor for vehicles, characterized by: a motor body having a rotation shaft; a sleeve press-fitted to the rotation shaft, and provided at a periphery thereof with an upper bearing seat and a lower bearing seat each eccentrically provided; an upper needle bearing press-fitted into the upper bearing seat; and a lower needle bearing press-fitted into the lower bearing seat.

## Claims

### Claim 1

An ABS motor for vehicles, the motor comprising:
a motor body having a rotation shaft;
a sleeve coupled to the rotation shaft, and including an upper bearing seat and a lower bearing seat each eccentrically provided at a periphery of the sleeve, and a compartment protruder interposed between the upper and lower bearing seats;
an upper needle bearing coupled to the upper bearing seat; and
a lower needle bearing coupled to the lower bearing seat;
wherein the lower bearing seat has a phase difference in the circumferential direction with respect to the upper bearing seat;
wherein the compartment protruder is integrally formed with the upper and lower bearing seats;
wherein the rotation shaft is integrally formed with a same diameter through the upper needle bearing, the compartment protruder, and the lower needle bearing; and
wherein the sleeve has an uneven thickness in a radial direction, and a thickest part of the sleeve in the radial direction is smaller than a radius of the rotation shaft.

### Claim 2 (depends on 1)

The ABS motor for vehicles of claim 1, further comprising disengagement prevention devices each provided at an upper side of the upper bearing seat and at a lower side of the lower bearing seat to prevent the upper needle bearing and the lower needle bearing from being disengaged.

### Claim 3 (depends on 2)

The ABS motor for vehicles of claim 2, wherein the upper and lower disengagement prevention devices are eccentrically formed.

### Claim 4 (depends on 1)

The ABS motor for vehicles of claim 1, wherein the phase difference is 120° in the circumferential direction with respect to the upper bearing seat.