INSTALLATION & MAINTENACE MANUAL
RCOe2100/03.06
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4 - Installation
This section is intended for personnel (MECHANICAL MAINTENANCE TECHNICIAN) assigned to install the
motor on the machine or system for which the unit has been purchased. Therefore the importance of this
section is emphasised since the optimum operation of the group machine/system – motor is the
consequence of the correct assembly of the parts; the correct installation will limit the sources of danger for
people working near to the structure.
4.1 – Applying the Motor to the System
Manufacture the assembly flange on the machine/system where the motor has to be installed: the relevant
surface has to be perfectly smooth, completely de-greased and non-deforming.
The motor must be assembled by using bolts whose size must be selected based on fixing holes dimensions:
appropriate lock washers must be used. The tightening torque must be proportional to the momentum
generated by the motor: if necessary, the 70% of the bolt yield load can be reached (pls. refer to the table
here below). Use fixing bolts belonging to resistance class 8.8 or higher.
MAXIMUM TIGHTENING TORQUE FOR MOTOR FIXING BOLTS
MAX. MOMENTUM (daNm)
MOTOR TYPE
MOTOR
CLASS
BOLT
NOMINAL
DIAMETER
(mm)
Class
8.8
Class
10.9
Class
12.9
MR
A
M08
2.48
3.50
4.18
B
M10
4.97
7.00
8.37
MR / MRE
C
M10
4.97
7.00
8.37
MR / MRE / MRA
MRD / MRDE / MRDA
D
M10
4.97
7.00
8.37
MR / MRE / MRA
MRD / MRDE / MRDA
MRV / MRVE / MRVA
E
M12
8.46
11.90
14.30
F
M12
8.46
11.90
14.30
G
M14
13.46
18.92
22.70
H
M16
20.40
28.80
34.60
I
M18
28.40
40.00
48.00
L
M22
53.00
74.50
90.00
MR / MRE / MRA
MRD / MRDE / MRDA
MRV / MRVE / MRVA
M
M24
70.00
98.00
117.00
MRT / MRTE / MRTF /
MRTA
P
M30
130.00
182.00
217.00
MRT / MRTE / MRTF
Q
M33
153.00
215.00
256.00
