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US 5,423,232 AGranted
Self-lubricating gear system
AssigneeIMO Industries Inc., Boston Gear Division
InventorsFrank S. Miller, John F. Croto
Life of this patent
Estimating the term…
Abstract
Disclosed is a high strength, self-lubricating, non-metallic gear which requires no lubrication when running with a metallic gear. The gears are secured to their shafts with keyless retaining devices, and the gear set is cut with a non-standard tooth form to provide superior power transmission performance.
Claims20
A gear system for driving roll stands, comprising:
- a. at least one non-metal driver gear;
- b. a driven gear;
- c. keyless locking means for securing said gears to shafts;
- and
- d. said driver gear having teeth with increased addendum relative to standard gearing, and said driven gear having teeth with addendum decreased in magnitude equal to said increase in addendum of said driver gear, all relative to standard gearing.
2 more elements
A gear system for driving roll stands, comprising:
- a. a self-lubricating plastic driver gear;
- b. a metal driven gear;
- c. keyless locking means for securing said gears to shafts;
- and
- d. said driver gear having teeth with increased addendum relative to standard gearing, and said driven gear having teeth with addendum decreased in magnitude equal to said increase in addendum of said driver gear, all relative to standard gearing.
2 more elements
A gear system for driving roll stands, comprising:
- a. a self-lubricating plastic driver gear;
- b. a metal driven gear;
- c. a first keyless locking device for securing said driver gear to a first shaft and a second keyless locking device for securing said driven gear to a second shaft;
- d. said driver gear having teeth with increased addendum relative to standard gearing, and said driven gear having teeth with addendum decreased in magnitude equal to said increase in addendum of said driver gear, all relative to standard;
- and
- e. said driver gear having teeth with increased base thickness relative to standard gearing, and said driven gear having teeth with reduced base thickness relative to standard gearing.
3 more elements
Dependencies are inferred from the claim text.