Spindle bearing arrangement for a power tool
US9216504B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2013 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Nov 15, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B21/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A power tool that includes a housing, a motor, a pair of motor bearings, a transmission, an output spindle and front and rear spindle bearings. The motor is received in the housing and includes a stator and an output shaft that extends through the stator. The motor bearings support the output shaft for rotation relative to the housing and are disposed on opposite ends of the stator. The transmission is driven by the motor and includes an input pinion that is mounted to the output shaft for rotation therewith. The output spindle is driven by the transmission. The front spindle bearing is mounted to a front end of the output shaft radially between the housing and the output shaft. The rear spindle bearing is mounted to a rear end of the output spindle and a portion of the rear spindle bearing rotates with the output shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.