Harmonic Drive FHA Mini Series, Manual

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Chapter 1 Overview of the FHA-C mini series
FHA-C mini
13
1-6 Mechanical accuracy of FHA-C mini actuators
The machining accuracy of the output flange and the mounting flange are indicated in the table below.
Machined accuracy of the output flange unit: mm
Machined parts FHA-8C FHA-11C FHA-14C
1. Axial run-out of output flange 0.010
2. Radial run-out of output flange 0.010
3. Parallelism between output
and mounting flange
0.040
4. Concentricity between output
flange to fitting face
0.040
Note: All values are T.I.R. (Total Indicator Reading).
The measuring for the values are as follows:
1. Axial run-out of output flange
The dial indicator (1) on a fixed portion measures the axial
run-out (T.I.R.) of perimeter of output flange for one revolution.
2. Radial run-out of output flange
The dial indicator (2) on a fixed portion measures the radial
run-out (T.I.R.) of perimeter of output flange for one revolution.
3. Parallelism between output flange and mounting flange
The dial indicator (3) on the output flange measures the axial
run-out (T.I.R.) of each perimeter of both sides of the fixing
flange for one revolution.
4. Concentricity between output flange to fitting face
The dial indicator (4) on the output flange measures the radial
run-out (T.I.R.) of each surface of both fitting face (output
flange and opposite side) for one revolution.
A 4
◎
2
A
B
1
3 B
(2)
(1)
(3)
(4)