
40
1019658 11/2014
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.
Table 40.2
[mm]
Size
14
17
20
25
32
40
45
50
58
a
0.011
0.012
0.013
0.014
0.016
0.016
0.017
0.018
0.020
b
0.016
0.021
0.024
0.035
0.042
0.048
0.053
0.057
0.062
c
0.015
0.018
0.019
0.022
0.022
0.024
0.027
0.030
0.032
d
0.011
0.015
0.017
0.024
0.026
0.026
0.027
0.028
0.031
e
0.011
0.015
0.017
0.024
0.026
0.026
0.027
0.028
0.031
f
0.017
(0.008)
0.020
(0.010)
0.024
(0.012)
0.024
(0.012)
0.024
(0.012)
0.032
(0.012)
0.032
(0.013)
0.032
(0.015)
0.032
(0.015)
g
0.030
(0.016)
0.034
(0.018)
0.044
(0.019)
0.047
(0.022)
0.050
(0.022)
0.063
(0.024)
0.065
(0.027)
0.066
(0.030)
0.068
(0.033)
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
Recommended shaft tolerances h6 or H6
Recommended housing tolerances H7