Claims
- 1. A bearing system for an output shaft or a motor assembly comprising;
a bearing journal having a sleeve bearing portion and a ball bearing portion; a sleeve bearing for supporting the output shaft, said sleeve bearing having a first end and a second end, said first end being supported in said sleeve bearing portion of said bearing journal; a finger spring disposed in said bearing journal and supporting said second end of said sleeve bearing; and an end cap press-fit into said bearing journal for securing said sleeve bearing and said finger spring in said bearing journal.
- 2. A bearing system according to claim 1, wherein said sleeve bearing portion is generally frusto-conical in shape and is defined by a sidewall and an end wall, said first end of said sleeve bearing being supported in said sleeve bearing portion by contact of said sleeve bearing with an interior surface of said sidewall.
- 3. A bearing system according to claim 1, wherein said sleeve bearing portion is defined by a side wall and an end wall, and wherein a plurality of inwardly extending tabs are disposed on an interior surface of said side wall, said first end of said sleeve bearing being supported in said sleeve bearing portion by contact of said sleeve bearing with said plurality of inwardly extending tabs.
- 4. A bearing system according to claim 1, wherein said sleeve bearing portion has an end wall, and wherein said sleeve bearing is supported in said sleeve bearing portion with space between an end surface of said sleeve bearing and said end wall.
- 5. A bearing system according to claim 1, wherein said finger spring is generally annular having a radial flange and plurality fingers extending downwardly and radially inwardly from an inner edge of said radial flange, said second end of said sleeve bearing being supported by said finger spring with said plurality of fingers in contact with said sleeve bearing.
- 6. A bearing system according to claim 1, wherein said finger spring is generally frusto-conical in shape having a radial flange, a frusto-conical sidewall extending from said flange, and an end wall, said second end of said sleeve bearing being supported by said finger spring with said frusto-conical sidewall in contact with an exterior surface of said sleeve bearing and said end wall in contact with an end surface of said sleeve bearing.
- 7. A bearing system according to claim 1, wherein said end cap is generally cylindrical in shape, and wherein an end surface of said end cap contacts said finger spring to secure said finger spring and said sleeve bearing within said bearing journal.
- 8. A bearing system according to claim 1, wherein said end cap is press-fit into said bearing journal with a first portion of said end cap in pressing engagement with an interior surface of said ball bearing portion.
- 9. A bearing system according to claim 1, wherein said ball bearing portion is generally cylindrically shaped.
- 10. A bearing system according to claim 1, wherein said ball bearing portion is dimensioned to receive a ball bearing directly therein with a press-fit.
- 11. A bearing system according to claim 1, wherein said ball bearing portion is dimensioned to receive a spacer directly therein with a press-fit, said spacer being dimensioned to receive a ball bearing directly therein with a press-fit.
- 12. A bearing system according to claim 1 wherein said sleeve bearing further comprises at least one oil recirculation channel disposed along an entire length of an outside surface of said sleeve bearing from said first end to said second end of said sleeve bearing and providing space for an oil medium.
- 13. A bearing system for an output shaft of a motor assembly comprising:
a bearing journal having a ball bearing portion for supporting a ball bearing and a sleeve bearing portion for supporting a sleeve bearing; and a ball bearing for supporting said output shaft, said ball bearing being disposed within said ball bearing portion with a press-fit.
- 14. A bearing system according to claim 13, wherein said sleeve bearing portion is generally frusto-conical in shape and is defined by a side wall and an end wall, and wherein an interior surface of said side wall is adapted for contacting a first end of said sleeve bearing for supporting said sleeve bearing in said sleeve bearing portion.
- 15. A bearing system according to claim 13, wherein said sleeve bearing portion is defined by a side wall and an end wall, and wherein a plurality of inwardly extending tabs are disposed on an interior surface of said side wall, said plurality of inwardly extending tabs being adapted for contacting a first end of said sleeve bearing for supporting said sleeve bearing in said sleeve bearing portion.
- 16. A bearing system according to claim 13, wherein said sleeve bearing portion has an end wall, and wherein said sleeve bearing portion is adapted for supporting said sleeve bearing with a space between an end surface of said sleeve bearing and said end wall.
- 17. A bearing system according to claim 13, wherein said ball bearing portion is generally cylindrically shaped.
- 18. A bearing system according to claim 13, wherein said an exterior surface of said ball bearing is in direct contact with an interior surface of said ball bearing portion.
- 19. A bearing system according to claim 13, said system further comprising a spacer received directly in said ball bearing portion with a press-fit, and wherein said ball bearing is received directly in said spacer with a press-fit.
- 20. A bearing journal for a motor assembly comprising:
a sleeve bearing portion adapted for supporting a sleeve bearing; and a ball bearing portion adapted for supporting a ball bearing.
- 21. A bearing journal according to claim 20, wherein said sleeve bearing portion is generally frusto-conical in shape and is defined by a side wall and an end wall, and wherein an interior surface of said side wall is adapted for contacting a first end of said sleeve bearing for supporting said sleeve bearing in said sleeve bearing portion.
- 22. A bearing journal according to claim 20, wherein said sleeve bearing portion is defined by a side wall and an end wall, and wherein a plurality of inwardly extending tabs are disposed on an interior surface of said side wall, said plurality of inwardly extending tabs being adapted for contacting a first end of said sleeve bearing for supporting said sleeve bearing in said sleeve bearing portion.
- 23. A bearing journal according to claim 20, wherein said sleeve bearing portion has an end wall and wherein said sleeve bearing portion is adapted for supporting said sleeve bearing with a space between an end surface of said sleeve bearing and said end wall.
- 24. A bearing journal according to claim 20, wherein said ball bearing portion is generally cylindrically shaped.
- 25. A bearing journal according to claim 20, wherein said ball bearing portion is dimensioned to receive a ball bearing directly therein with a press-fit.
- 26. A bearing journal according to claim 20, wherein said ball bearing portion is dimensioned to receive a spacer directly therein with a press-fit, said spacer being dimensioned to receive a ball bearing directly therein with a press-fit.
CROSS-REFERENCE TO RELATED APPLICATION
[0001] The present application is based on and claims priority from U.S. Provisional Application Serial No. 60/217,164, filed on Jul. 10, 2000.
Provisional Applications (1)
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Number |
Date |
Country |
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60217164 |
Jul 2000 |
US |