公开(公告)号：GB2448649B

公开(公告)日：2011-03-30

申请号：GB0815240

申请日：2006-05-18

Applicant: HAMILTON SUNDSTRAND CORP

Inventor： CARVALHO PAUL A ,  NARDI AARON T ,  PRUDEN ROBERT W ,  TOTH NOAH M

IPC: B64C11/06 ,  F16C19/16 ,  F16C33/38

公开(公告)号：GB2448649A

公开(公告)日：2008-10-22

申请号：GB0815240

申请日：2006-05-18

Applicant: HAMILTON SUNDSTRAND CORP

Inventor： CARVALHO PAUL A ,  NARDI AARON T ,  PRUDEN ROBERT W ,  TOTH NOAH M

IPC: B64C11/06 ,  F16C19/16 ,  F16C33/38

Abstract: A ball separator is utilized to mount and insert a plurality of ball bearings into mating grooves in a propeller hub and propeller blade. The ball separator has a link portion connecting a plurality of pockets. The pockets support spaced ones of said ball bearings. The pockets have a surface that includes at least two distinct surface portions. A central surface portion closely matches an outer periphery of the ball bearing, while a second portion formed around the first portion is spaced by a slightly greater amount. The second portion is not in contact with the ball bearing, and thus friction is reduced and clearance is provided for circulation of oil. On the other hand, the second portion does provide support to hold the ball bearing within the ball separator when the ball separator is being inserted or removed into the grooves. In addition, a material is developed for forming the ball separator with the material minimizing stick-slip problems. The material is a Nylon 6/6 filled by PTFE and a fluorinated lubricating oil to a total combined additive level of between 6 and 12% by weight.

公开(公告)号：DE112006003836T5

公开(公告)日：2009-02-19

申请号：DE112006003836

申请日：2006-05-18

Applicant: HAMILTON SUNDSTRAND CORP

Inventor： CARVALHO PAUL ,  NARDI ARON T ,  PRUDEN ROBERT W ,  TOTH NOAH M

IPC: F04D29/059