STOPPER PIECE AND BEARING APPARATUS

• US 20160108968A1
• Filed: 09/28/2015
• Published: 04/21/2016
• Est. Priority Date: 10/20/2014
• Status: Abandoned Application

• Current Assignee: Showa Corporation (Hitachi, Ltd.)
• Original Assignee: Showa Corporation (Hitachi, Ltd.)
• Inventors: KOGUCHI, Kazuhide
• Application Number:
  US14/867,703
• Publication Number:
  US 20160108968A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B64C 11/00 Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
• CPC Class Codes: F16C 19/06 with a single row or balls
• CPC Class Codes: F16C 2226/60 with threaded parts, e.g. bolt and nut connections
• CPC Class Codes: F16C 2229/00 Setting preload
• CPC Class Codes: F16C 2326/06 Drive shafts
• CPC Class Codes: F16C 2326/43 Aeroplanes; Helicopters
• CPC Class Codes: F16C 25/06 Ball or roller bearings
• CPC Class Codes: F16C 27/066 Ball or roller bearings
• CPC Class Codes: F16C 33/7879 with a further sealing ring
• CPC Class Codes: F16C 35/077 between housing and outer race ring

Abstract

To provide a stopper piece and a bearing apparatus capable of stopping the rotation of a shaft member to which a bearing and so on are fitted by using a tool. A stopper piece according to the present invention is a cylindrical stopper piece which is fitted over the shaft member of the propeller shaft with the bearing, one end face of which contacts with the bearing to prevent movement of the bearing, which includes a pair of protruding portions protruding from the other end face along the shaft member to interpose the shaft member, in which outer surfaces of the pair of protruding portions are flat surfaces directed to opposite directions as well as parallel to each other.

Claims

1. A cylindrical stopper piece fitted over a shaft member of a propeller shaft with a bearing, wherein one end face of the stopper piece contacts with the bearing to prevent movement of the bearing, the stopper piece comprising:

a pair of protruding portions protruding from other end face of the stopper piece along the shaft member to interpose the shaft member between the pair of protruding portions,

wherein outer surfaces of the pair of protruding portions are flat surfaces directed to opposite directions and being parallel to each other.

4. A bearing apparatus for rotatably supporting a shaft member, comprising:

a bearing fitted over the shaft member and rotatably supporting a propeller shaft;

a vibration absorbing member fitted over the bearing and absorbing vibration of the propeller shaft; and

the stopper piece according to claim 1.

2. A cylindrical stopper piece fitted over a shaft member of a propeller shaft with a bearing, wherein one end face of the stopper piece contacts with the bearing to prevent movement of the bearing, the stopper piece comprising:

ridges or grooves extending in a radial direction of the shaft member and provided on other end face of the stopper piece, with which a tool can be engaged.

5. A bearing apparatus for rotatably supporting a shaft member, comprising:

a bearing fitted over the shaft member and rotatably supporting a propeller shaft;

a vibration absorbing member fitted over the bearing and absorbing vibration of the propeller shaft; and

the stopper piece according to claim 2.

3. A cylindrical stopper piece fitted over a shaft member of a propeller shaft with a bearing, wherein one end face of the stopper piece contacts with the bearing to prevent movement of the bearing, the stopper piece comprising:

locking holes or locking projections with which a tool can be engaged and which are provided on other end face of the stopper piece.

6. A bearing apparatus for rotatably supporting a shaft member, comprising:

a bearing fitted over the shaft member and rotatably supporting a propeller shaft;

a vibration absorbing member fitted over the bearing and absorbing vibration of the propeller shaft; and

the stopper piece according to claim 3.