Patent ID: 6449868
Filing Date: 2002-09-17
Classification: G01B

Abstract:
A measuring apparatus for a power roller unit for a toroidal continuously variable speed transmission, the power roller unit having a trunnion with concentric pivot portions at opposite ends thereof, a pair of bearings disposed around the pivot portions, a displaceable shaft including a first portion rotatably disposed in a hole formed in the trunnion, and a second portion having a power roller rotatably supported thereon, the measuring apparatus comprising:a pair of pedestals having upper surfaces adapted to support the pivot portions of the trunnion; a first hold-down system operative to press the bearings against the upper surfaces of the pedestals; and a second hold-down system operative to press the power roller toward the trunnion; drive system operative to displace at least one of the power roller and the displaceable shaft; and a measuring system operative to measure displacement of the at least one of the power roller and the displaceable shaft by the drive system.