BEARING STRUCTURE FOR TRANSMISSION

摘要

PROBLEM TO BE SOLVED: To enhance durability of a tapered roller bearing as a pilot bearing.

SOLUTION: The bearing structure for the transmission is constituted so as to include an input shaft 24 inputted with rotation drive force; a main shaft 26 arranged coaxially to this; and a main counter shaft 28 arranged in parallel to these so as to gear-transmitting the rotation drive force from the input shaft 24 to the main shaft 26, and a front end of the main shaft 26 is relatively rotatably supported on an outer ring raceway surface 24A formed on a rear end of the input shaft 24 through the tapered roller bearing 46. A contact angleαof the outer ring raceway surface 24A is set to a predetermined angle taking into consideration that the input shaft 24 and the main shaft 26 are deflected by reaction force applied from the main counter shaft 28.

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