FHA-C Series - Harmonic Drive LLC

Chapter 1 Overview of the FHA-C series1-6 Mechanical accuracy of FHA actuatorsThe machining accuracy of the output flange and the mounting flange are indicated in the table below.Machined accuracy of the output flangeunit: mmMachined parts FHA-17C FHA-25C FHA-32C FHA-40C1. Axial run-out of output flange 0.010 0.012 0.012 0.0142. Radial run-out of output flange 0.010 0.012 0.012 0.0143. Parallelism between output flange and mounting flange 0.040 0.050 0.050 0.0604. Concentricity between output flange to fitting face 0.040 0.050 0.050 0.060Note: All values are T.I.R (Total Indicator Reading).The measuring for the values are as follows:• Axial run-out of output flangeThe indicator (1) on a fixed portion measures the axial run-out(T.I.R.) of perimeter of output flange for one revolution.2B• Radial run-out of output flangeThe indicator (2) on a fixed portion measures the radial run-out(T.I.R.) of perimeter of output flange for one revolution.A4 A4 A13 B3 B• Parallelism between output flange and mounting flangeThe indicator (3) on the output flange measures the axial run-out(T.I.R.) of each perimeter of both sides of the fixing flangefor one revolution.• Concentricity between output flange to fitting faceThe indicator (4) on the output flange measures the radial run-out(T.I.R.) of each surface of both fitting face (drive-end sideand opposite side) for one revolution.(4)(3)(2)(1)(4)(3)11