Back to results
US 8,984,980 B2Granted
Gear motor assembly
AssigneeJohnson Electric S.A.
InventorsWing Cheung Lam, Qiang Xu, Marlou Tampus Malabo
Life of this patent
Estimating the term…
Abstract
A gear motor assembly includes a casing having a through hole, a motor fixed to the casing, an output shaft, a gear fixed to the output shaft and driven by the motor, and a substantially tubular bearing fixed in the through hole of the casing. The gear has a shaft portion that is sleeved in the bearing. A slot is formed in the inner surface of the bearing and/or the outer surface of the shaft portion and is filled with lubricant.
Claims5
A gear motor assembly, comprising:
- a casing having a through hole;
- a motor fixed to the casing;
- an output shaft;
- a gear fixed to the output shaft and driven by the motor;
- a substantially tubular bearing fixed in the through hole of the casing and sleeving a shaft portion of the gear;
- and
- at least one slot containing lubricant formed in at least one of an inner surface of the bearing and an outer surface of the shaft portion;
- wherein
- the at least one slot comprises an odd number of slots formed in the outer surface of the shaft portion;
- the at least one slot further comprises an odd number of slots formed in the inner surface of the bearing;
- and
- the number of slots in the outer surface of the shaft portion is not equal to the number of slots in the inner surface of the bearing.
9 more elements
Dependencies are inferred from the claim text.