This is accomplished when rolling balls are forced by a tapered surface on an expandable sleeve to frictionally load a force rod.
(This; is accomplished; T:when rolling balls are forced by a tapered surface on an expandable sleeve to frictionally load a force rod) (rolling balls; are forced; by a tapered surface; to frictionally load a force rod) (rolling balls; to frictionally load; a force rod)
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is accomplished are forced to frictionally load
T:when rolling balls are forced by a tapered surface on an expandable sleeve to frictionally load a force rod
by a tapered surface to frictionally load a force rod
a force rod