Recommended Tolerances For Assembly - Harmonic Drive HFUS-2A Series Engineering Data

5.4 Recommended Tolerances for Assembly

In order for the new features of Harmonic Drive® Units to be exploited fully, it is essential that the tolerances according to
table 40.1 are observed for the input assembly.
Illustration 40.1
Recommended shaft tolerances h6 or H6
Table 40.2
Size
a
b
c
d
e
f
g
The values in brackets are the recommended tolerances for component sets featuring a Wave Generator without Oldham coupling. The Oldham coupling
serves to compensate for eccentricity of the input shaft and is available in the standard version. For the direct mounting of a Wave Generator without
Oldham coupling (optional) on a motor shaft, the shaft tolerances should fulfill the DIN 42955 R standard.
40
Recommended shaft tolerances h6
14 17 20
0.011 0.012 0.013
0.016 0.021 0.024
0.015 0.018 0.019
0.011 0.015 0.017
0.011 0.015 0.017
0.017 0.020 0.024
(0.008) (0.010) (0.012)
0.030 0.034 0.044
(0.016) (0.018) (0.019)
25 32 40
0.014 0.016 0.016
0.035 0.042 0.048
0.022 0.022 0.024
0.024 0.026 0.026
0.024 0.026 0.026
0.024 0.024 0.032
(0.012) (0.012) (0.012)
0.047 0.050 0.063
(0.022) (0.022) (0.024)
Recommended housing tolerances H7
45 50 58
0.017 0.018 0.020
0.053 0.057 0.062
0.027 0.030 0.032
0.027 0.028 0.031
0.027 0.028 0.031
0.032 0.032 0.032
(0.013) (0.015) (0.015)
0.065 0.066 0.068
(0.027) (0.030) (0.033)
1019658 11/2014
[mm]