# US 4,397,470 A · Oil slinger and method of mounting

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- Number: US 4,397,470 A
- Document ID: US4397470A
- Status: Granted
- Kind: A
- Application number: 06/289,669
- Filed: 1981-08-03
- Granted: 1983-08-09
- Earliest claimed: 1981-08-03
- Assignees: Elliott Turbomachinery Co., Inc.
- Inventors: Alexander A. Carroll; William F. Hannan, III
- Web page: https://patentgrep.com/patent/US4397470A

## CPC

- F16J 15/54: Other sealings for rotating shafts
- Y10T 29/49872: Confining elastic part in socket
- Y10T 29/49876: by snap fit
- F16J: PISTONS {(specially adapted for dampers F16F9/32)}; CYLINDERS; SEALINGS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An oil slinger is held in place on a shaft by an O-ring which serves as a detent when the shaft is at rest and as a static seal when the shaft is rotating. Because the slinger is held only by a detent action in the rest position, the slinger can be moved aside during assembly and disassembly of the companion bearing and seal structure and thereby provide greater access.

## Claims

### Claim 1

An oil slinger comprising:
an annular member;
a first cylindrical surface formed on said annular member and having an annular groove formed therein;
a second cylindrical surface formed on said annular member radially outward of said first cylindrical surface;
a radial surface extending between said first and second cylindrical surfaces and defining a radial flowpath for oil contacting said annular member
a generally radially extending surface between said first and second cylindrical surfaces;
whereby when said slinger is mounted on a shaft having an O-ring extending above the surface of the shaft, the slinger can be readily moved into and out of position on the shaft by the O-ring coacting with said annular groove in a detent action.

### Claim 2 (depends on 1)

The oil slinger of claim 1 wherein said generally radially extending surface is connected to said first cylindrical surface by a chamfer.

### Claim 3

A method for removably mounting an oil slinger on a rotatable shaft including the steps of
moving an annular oil slinger along a shaft until an O-ring is encountered;
forcing the slinger over the O-ring;
receiving the O-ring is a recess in the slinger in a detent action; and
rotating the shaft whereby the O-ring forms a fluid seal with the slinger so that oil migrating along the shaft is forced to travel onto said slinger and is discharged therefrom by centrifugal force.

### Claim 4 (depends on 3)

The method of claim 3 further including the step of moving said slinger off of the O-ring in a detent action whereby access can be had to the space occupied by the slinger when on the O-ring.