| 摘要 |
A bearing assembly for a continually variable cone-pulley belt drive transmission includes a primary shaft defining a conical pulley that is rotatably mounted, and an axially displaceable conical pulley that is movable along the axis of the primary shaft. A secondary shaft rotatably mounted parallel to the primary shaft defines an axially nondisplaceable conical pulley and an axially displaceable pulley movable parallel to the axis of the secondary shaft. The pulleys on the primary and secondary shafts are drivably connected by an endless drive belt that engages the pulleys on the shaft at a variable radius, whereby the secondary shaft is driven at a variable speed with respect to the primary shaft. The primary and secondary shafts are mounted in the casing of the transmission by a fixed bearing and a loose bearing. The fixed bearing on the primary shaft has its outer race easily displaceable by an axial-linear guide in the form of a group of ball bearings carried in a bearing cage.
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