Bru s h le s s DC Mo t o rs . . .
offer precise control for a wide range of applications. Rotron standard motor designs offer
maximum controllable performance, coupled with the reliability of brushless technology in a com-
pact cost effective package. First introduced in 1988, the AMETEK brushless DC motor product line
has continually expanded into one of the largest mixes of fractional horsepower motor products in
the industry.
Mo t o r S e le c t io n . . .
is made easy with the wide variety of standard products available from AMETEK. Six different motor
families are available in standard configurations. These include 1.7” (43mm), 2.5” (64mm), 3.0”
(76mm), 3.55” (90mm), 3.9” (99mm), and 5.25” (133mm) diameter motors, with constant torque which
range from 5.75 oz. in. (4.06 Ncm) to 832 oz. in. (5.87 Nm) and horsepower ratings of .014 to 1.75.
Voltage options range from 12VDC to 74VDC. The table below provides a summary of the motor
products, operating voltages, speed and torque ranges sorted by motor diameter. Use this chart to
compare the AMETEK products to the application needs. Detailed motor information is provided on
the individual product sheets.
BLDC MOTORS
Motor Diameter
Operating Voltage (DC)
Controller Input
12, 24, 36
Speed Range (RPM)
at Nom. Continuous Torque
0 - 3,000
Torque Range (oz. in.)
Maximum Continuous
5.75 - 11
1.7” (43mm)
2.5” (64mm)
3.0” (76mm)
3.55” (90mm)
3.9” (99mm)
5.25” (133mm)
12, 24, 36
0 - 5,000
14 - 69
13.8, 24, 27.6
12, 24, 36
0 - 4,930
19.7 - 55
0 - 4,300
22 - 132
12. 13.8, 27.6, 74
27, 27.6, 74
0 - 4,500
28 - 100
0 - 4,055
192 - 832
Mo t o r Co n t ro lle rs
All of the AMETEK BLDC Motors require a controller to operate. The controllers require a DC
input which is processed into phase drive signals. The 1.7” (43mm) and 3.0” (76mm) motors
are available with integrated controllers. All other motors require an external controller. Con-
troller details and compatibility to the different motor products are supplied in the controller
section of the catalog.
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INTRO99