
48
Rockwell Automation Publication MM-IN001B-EN-P - February 2022
Kinetix MMA Asynchronous Main Motors Installation Instructions
To Remove a Shaft Key
Lift the key by gripping it with a pliers or similar tool. Then apply leverage to the key with a screwdriver.
To Install a Shaft Key
1.
Verify that the replacement key matches the keyway in the shaft and the mating mechanical connection (for
example, a coupling or pulley) before proceeding.
2.
To help prevent movement, support the motor and shaft.
3.
Align the front of the key with the front of the shaft.
Figure 17 - Shaft Key Alignment
4.
Apply a constant force across the exposed surface of the key with a controlled press device (for example, a screw clamp) to push the key into the shaft.
5.
Verify the proper fit by visually inspecting the motor shaft and key.
6.
Check the motor shaft and surrounding surfaces.
Blower Specifications, Replacement, and Repositioning
All Kinetix MMA main motors can be ordered with an axial blower option.
The MMA-B132
xxx
and larger size motors can be ordered with the radial blower option. As a standard configuration, the blower is mounted on the non-drive end (NDE) top
side of the motor. This radial blower can be repositioned and mounted on either the right or left side as needed. See
Instructions to Reposition or Replace the Radial Blower
.
IMPORTANT
Verify that the motor shaft, faceplate, bearing bore, and keyway are free of nicks, burrs, grooves, or spiral
machine marks. Remove any nicks, burrs, or surface damage.
Table 48 - Axial Blower with 1-PH Input Voltage
Motor Cat. No.
Power Supply (V AC)/Hz
Max Current (A)
Power (kW)
Max Airflow
(m
3
/min)
Max Pressure (Pa)
Blower Kit
(1)
(1)
The ‘22’ indicates that there is no brake, MM-BLWR-
xxx
-
22
-x. The ‘BB’ indicates the brake only configuration, MM-BLWR-
xxx
-
BB
-x.
MMA-B080
xxx
1-PH; 220…230V AC; 50/60 Hz
0.31
0.045
6
70
MM-BLWR-080-2B-A
MMA-B100
xxx
1-PH; 200…240V AC; 50/60 Hz
0.8
0.085
11
630
MM-BLWR-100-22-A
MM-BLWR-100-BB-A
MMA-B132
xxx
1-PH; 200…240V AC; 50/60 Hz
1.35
0.169
16
1100
MM-BLWR-132-22-A
MM-BLWR-132-BB-A
MMA-B160
xxx
1-PH; 200…277V AC; 50/60 Hz
2.2
0.5
36
1500
MM-BLWR-160-22-A
MM-BLWR-160-BB-A
Table 49 - Axial Blower with 3-PH Input Voltage
Motor Cat. No.
Power Supply (V AC)/Hz
Max Current (A)
Power (kW)
Max Airflow
(m
3
/min)
Max Pressure (Pa)
Blower Kit
(1)
(1)
The ‘22’ indicates that there is no brake, MM-BLWR-
xxx
-
22
-x. The ‘BB’ indicates the brake only configuration, MM-BLWR-
xxx
-
BB
-x.
MMA-B160
xxx
3-PH; 380…480V AC; 50/60 Hz
1.10
0.75
35
14.50
MM-BLWR-160-22-B
MM-BLWR-160-BB-B
MMA-B180
xxx
3-PH; 380…480V AC; 50/60 Hz
1.80
1.18
62
1450
MM-BLWR-180-22-B
MM-BLWR-180-BB-B
MMA-B225
xxx
3-PH; 380…480V AC; 50/60 Hz
1.80
1.14
91
1000
MM-BLWR-225-22-B
MM-BLWR-225-BB-B
Key
Shaft
Key Alignment
Keyway
Key
Shaft