Siemens SIMOTICS M-1PH1, Equipment Manual

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Mechanical properties
3.9 Radial eccentricity, concentricity and axial eccentricity
1PH1 main motors
42
Equipment Manual, 09/2021, A5E51077676A-AA
3.9 Radial eccentricity, concentricity and axial eccentricity
The shaft and flange accuracies are always obtained in accordance with IEC 60072 and
DIN 42955-1981 and defined as follows:
•
Radial eccentricity tolerance: tolerance of the motor shaft (cylindrical shaft extension) in
relation to the frame axis
• Concentricity and axial eccentricity tolerance: tolerance of the motor shaft in relation to
the flange surface (centering diameter of the mounting flange)
The table below provides the detailed tolerance values for the 1PH1 motors:
Shaft height
(mm)
Mounting method Radial eccentricity tol-
erance level R
Concentricity and axial
eccentricity tolerance
level R
100 Foot mounting 0.025 ---
132
100
Flange mounting 0.025 0.05
132
Checking the radial eccentricity
① Motor
② Motor shaft
③ Dial gauge
Checking the concentricity and axial eccentricity
A Check for concentricity ① Motor
B Check for axial eccentricity ② Motor shaft
③ Dial gauge