Transmission device, especially a reverse gear for boats

Details Transmission device, especially a reverse gear for boats Transmission device, especially a reverse gear for boats

1994-04-20

1996-04-23

Bonck, Rodney H.

Machine element or mechanism

Gearing

Interchangeably locked

74417, 192 51, 192107M, F16H 314, F16D 1326

Patent

active

055093230

ABSTRACT:
A reverse gear for boats, comprising a bevel gear transmission with two gears (4,5) rotatably mounted on a secondary shaft (8) and alternately engageable with the shaft by means of an engaging sleeve (11). The engaging sleeve is made of bronze and has outer engaging cones (12,13), which are coated with a surface layer of molybdenum. The rotatably mounted gears (4,5) have inner engaging cones (14,15) of case hardened steel. The molybdenum layer need be only about 0.1 mm thick and, contrary to molybdenum coatings on steel inner engaging cones of the prior art, need not be worked after deposition.

REFERENCES:
patent: 3269497 (1966-08-01), Bergstedt
patent: 3365039 (1968-01-01), Stott et al.
patent: 4091904 (1978-05-01), Beyer
patent: 4679681 (1987-07-01), Creydt et al.
patent: 5249661 (1993-10-01), Kawamura et al.
patent: 5407043 (1995-04-01), Yamada

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