Title:
【発明の名称】オーバーモールドモータベアリング
Document Type and Number:
Japanese Patent JP2003530526
Kind Code:
A
Abstract:
An overmolded motor bearing is provided for use with an electric motor. A conventional ball-bearing has a rubberized sleeve molded directly onto the bearing so that the bearing and insulating rubber sleeve form a unitary subassembly. The bearing sub-assembly is formed by inserting the conventional ball-bearing directly into the mold of an injection molding machine. Importantly, the rubberized material encapsulating the bearing extends around the outer bearing race and along the side faces of the bearing. In a preferred embodiment, separate nylon washers are installed on either side of the bearing when the bearing is inserted into the mold. The rubberized material is then injection molded around the outer bearing race to capture the nylon washers. The preferred embodiment thus prevents the bearing shields on the side faces of the bearing from being subjected to the injection molding pressures within the mold which can deform and thus damage the bearing shields.
Inventors:
Williams, Mark Dee.
Application Number:
JP2001536893A
Publication Date:
October 14, 2003
Filing Date:
November 10, 2000
Export Citation:
Assignee:
Black and Decker Incorporated
International Classes:
F16C35/077; B29C45/14; F16C19/52; F16C27/06; F16C33/58; H02K5/173; H02K15/14; (IPC1-7): F16C19/52; F16C33/58; F16C35/077; H02K5/173; H02K15/14
Domestic Patent References:
| JPH1037949A | 1998-02-13 | |||
| JPS63107433A | 1988-05-12 | |||
| JPH07238939A | 1995-09-12 | |||
| JPH0538420U | 1993-05-25 | |||
| JPH0540622U | 1993-06-01 | |||
| JPH1130239A | 1999-02-02 |
Foreign References:
| US5038460A | 1991-08-13 |
Attorney, Agent or Firm:
Shusaku Yamamoto (2 outside)