| 摘要 |
<p>In a marine drive 10 having two counter-rotating propellers, inner and outer concentric counter-rotating propeller shafts 40, 42 are supported by a spool assembly 38 locked and retained against rotation and against axial movement in the lower horizontal bore 28 in the torpedo of the drive housing 26 by axially spaced left and right hand threads 44 and 46. A thrust bearing assembly 98 transfers thrust from the outer propeller shaft to the inner propeller shaft during rotation of the propeller shafts in opposite axial direction and is axially located between fore and aft driven gears 76 and 78. Propeller shaft sealing and bearing structure, and propeller self-centering mounting structure is provided.</p> |
