Invention Grant
- Patent Title: Method and kit for retrofitting elevator machines with thrust bearing, and retrofitted elevator machine
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Application No.: US16870454Application Date: 2020-05-08
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Publication No.: US11299374B2Publication Date: 2022-04-12
- Inventor: Daniel B. Davis, III , Robert K. Williams , John Eschenbrenner , Gregory M. O'Seep , James L. Hubbard , Martin J. Hardesty , Bruce P. Swaybill , Jesse R. Richter , Gary P. Mendrala , Patricia Derwinski , Christopher H. Koenig
- Applicant: Otis Elevator Company
- Applicant Address: US CT Farmington
- Assignee: Otis Elevator Company
- Current Assignee: Otis Elevator Company
- Current Assignee Address: US CT Farmington
- Agency: Cantor Colburn LLP
- Main IPC: B66B19/00
- IPC: B66B19/00 ; B66B11/04 ; F16C19/10

Abstract:
Disclosed is a method for retrofitting an elevator machine with a thrust bearing, including removing, from a bearing stand, a first cover plate, providing access to an end portion of a motor shaft, securing an extension shaft against the end portion of the motor shaft, securing a thrust bearing housing against or axially offset from the bearing stand, positioning a thrust bearing in the bearing housing, wherein an inner race of the thrust bearing is securely positioned against, and axially fixed to, the extension shaft, and an outer race of the thrust bearing is securely positioned against the bearing housing, and securing a second cover plate to the bearing housing.
Public/Granted literature
- US20200270100A1 METHOD AND KIT FOR RETROFITTING ELEVATOR MACHINES WITH THRUST BEARING, AND RETROFITTED ELEVATOR MACHINE Public/Granted day:2020-08-27
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