Thanks NC, knew there was some thing that prevented needle bearings from being good thrust. That was a good explination of slip /skid to illustrate."Tighten up" just never worked with needle thrust bearing, no matter how well they were lubricated.
Had a lot of "thrust bearings" )(needle) fail in High Performance out boards and out drives when lots of torque and horse power was applied ..argued endlessly with a domestic out board- inbord manufacture about their control of thrust..told their chief engineer he was still in the 1950's with his "new" design, he invited me out of his office, but they almost went broke fixing thousands of outdrives still in warrenty . The "other" marine manufacture solved their problem with precision matched angular thrust bearings..
Adobe (old as dirt ) |