Method of manufacturing a seal

Patent metadata

Field	Value
Publication number	US-10088052-B2
Application number	US-201514861527-A
Country	US
Kind code	B2
Filing date	Sep 22, 2015
Priority date	Sep 22, 2015
Publication date	Oct 2, 2018
Grant date	Oct 2, 2018

Abstract

The method includes providing a generally annular sealing element, the sealing element having an inner circumferential sealing surface configured to engage with a relatively movable member, and an outer casing blank including one of: a generally axially-extending section and a generally radially-extending section extending inwardly from the axially-extending section; and a generally annular disk and a generally cylindrical tube. The method may also include determining a desired diameter for a generally annular outer casing, removing a portion of the provided one of the radially-extending section and the annular disk, such that a diameter of the outer casing blank is about equal to the desired diameter, and coupling the sealing element to the outer casing blank after removing the portion of the provided one of the radially-extending section and the disk.

First claim

What is claimed is:

1. A method for manufacturing a seal, comprising:
providing a generally annular sealing element, the sealing element having an inner circumferential sealing surface configured to engage with a relatively movable member, and an outer casing including a generally axially-extending section and a generally radially-extending section extending inwardly from the axially-extending section;
determining a desired diameter for the outer casing;
removing a portion of the radially-extending section, such that a diameter of the outer casing is about equal to the desired diameter;
embedding a connecting insert at least partially in a pocket of the sealing element; and
coupling the sealing element to the outer casing by connecting the outer casing to the connecting insert that was embedded at least partially in the pocket of the sealing element, after removing the portion of the provided one of the radially-extending section.

2. The method of claim 1 , wherein:
the radially-extending section comprises annular disk;
the axially-extending section comprises a generally cylindrical tube a is separate from the annular disk; and
removing the portion of the outer casing includes removing a radially-outer section of the annular disk.

3. The method of claim 2 , further comprising connecting the tube to the disk after removing the radially-outer section of the annular disk.

4. The method of claim 1 , wherein embedding the connecting insert comprises forming the sealing element at least partially around the connecting insert.

5. The method of claim 1 , wherein coupling the sealing element to the outer casing includes entraining a portion of the outer casing between a crimping extension of the connecting insert and a base of the connecting insert.

6. The method of claim 1 , wherein coupling the sealing element to the outer casing comprises welding or soldering the insert to the outer casing.

7. The method of claim 1 , wherein:
providing the outer casing includes providing the radially-extending section, and removing the portion of the outer casing includes removing a radially-inner portion of the radially-extending section of the outer casing.

8. The method of claim 1 , further comprising:
determining a diameter for a lip of the sealing element; and
removing a portion of the lip of the sealing element, such that the diameter of the sealing element is about equal to the determined diameter for the lip.

9. The method of claim 1 , further comprising removing an axial portion of the axially-extending section.

10. The method of claim 1 , further comprising providing one or more engaging features for connecting with one or more accessories, the one or more engaging features being attached to or integral with the outer casing, the sealing element, the insert coupled with the sealing element, or a combination thereof.

11. A method of manufacturing a seal for sealing about a shaft, the method comprising:
providing a casing blank having a generally axial section and a generally radial section extending inwardly from the axial section;
providing a sealing element, wherein an inner diameter of the sealing element is sized to sealingly engage with the shaft;
removing an inner portion of the generally radial section of the casing blank such that the radial section has an inner diameter sized to receive the sealing element;
embedding a connecting insert at least partially in a pocket of the sealing element; and
coupling the sealing element to the casing blank by connecting the casing blank to the connecting insert that was embedded at least partially in the pocket of the sealing element.

12. The method of claim 11 , further comprising;
determining a desired axial dimension for the casing blank; and
removing an axial portion of the generally axial section of the casing blank such that the axial section has an axial dimension that is about equal to the desired axial dimension.

13. The method of claim 12 , wherein the insert comprises a crimping extension and a base, the base being received into the pocket of the sealing element, wherein coupling the sealing element with the casing blank includes welding or soldering the insert to the casing blank.

14. The method of claim 11 , further comprising removing a portion of a lip of the sealing element.

15. The method of claim 11 , wherein the insert comprises a crimping extension and a base, the base being received into the pocket of the sealing element, wherein coupling the sealing element with the casing blank includes:
receiving at least part of the radial section of the casing blank between the crimping extension and the base of the insert; and
bending the crimping extension toward the base, so as to entrain the at least a part of the radial section of the casing blank between the crimping extension and the base.

Assignees

• Thomas Michael
• Skf Ab

Inventors

• Thomas Michael

Classifications

• F16J15/328

  Manufacturing methods specially adapted for elastic sealings (moulding B29C) · CPC title

• F16J15/3268 Primary

  Mounting of sealing rings · CPC title

• F16J15/3216

  supported in a direction parallel to the surfaces · CPC title

• Y10T29/49297

  Seal or packing making · CPC title

• F16J15/3252

  with rigid casings or supports · CPC title