ABB AC servo motors BSM Series
SolutionsABB’s comprehensive range includes multi-axis Motion Controllers, high
performance Motion Control Drives, rotary servo motors, PLCs and
HMI - all designed to seamlessly interface with each other to provide a
complete motion solution. This allows you to optimize your design time,
save development costs and minimize your time to market.
Choice
ABB firmly believes in offering our customers a range of products
to fit a variety of market needs. Whether this means delivering
a product from stock, designing a product for your specific
application, accessing technical data, or how you place your order,
we make it easy to do business with us. Our products are designed
to handle a wide range of applications.
Quality, reliability & design
With ISO9001:2008 certification to assure conformity to customer
requirements and quality standards, and by using the latest CAD
tools and manufacturing techniques, ABB’s engineering teams work
side-by-side through design, product development, manufacture
and final test to make sure that total quality and reliability is built into
and stays with each product throughout its long lifetime.
Experience
Technical knowledge is the key to solving customers’ needs.
Our extensive experience has been gained over many years
through close customer contact from product development to
field maintenance, providing invaluable feedback for our product
development process - ensuring ABB Motion Control and PLC
products meet the ease of use, flexibility and performance
demanded by the markets we serve. Application notes reflecting
our knowledge and ability are available for download on the web
at www.abb.com/motion.
Information
Information must be comprehensive and easily accessed. To
make it easier for our customers, we provide a complete range
of product literature as well as a website dedicated to Motion
Control products - www.abb.com/motion. This brings together,
in one location, all the information relevant to Motion Control and
PLC products and includes technical information, latest news,
application stories, application notes and support.

AC servo motors
BSM N-Series brushless servo motors
Low inertia - high dynamics
The BSM N series provides the lowest inertia and a high torque designed for excellent
performance response. This series has a rugged, durable industrial design and is constructed
with Neodymium Iron Boron magnetics. It is capable of peak torques equal to four times
continuous, which can be used to provide high acceleration torques in applications. ABB BSM
motors are available with a wide variety of feedback devices to suit application needs. IEC and
NEMA configurations are available.
Variety of feedback options:
— Resolver
— Incremental/Absolute Encoders
— Hall sensors
Precision wrapped rotor
High acceleration capability
- to move faster, to get the
job done faster. High torque
to inertia ratio - enables your
machine to produce more
parts per hour.
Moisture/Dust resistant
o-rings
Environmentally rugged - for
reliability and long life.
High temperature operation
Over temperature protection
thermal switch. Heavy duty
continuous operation - for
dependable performance.
The BSM N-series provides applications with low inertia to attain the highest acceleration
capability - to position faster - to obtain the highest machine throughput. Our motors are hard
at work, increasing productivity, improving part quality, providing precision and reducing cost
in many applications. This series provides continuous stall torques ranging from 3.9 lb-in (0.4
Nm) to 354 lb-in (40 Nm). Peak torques are four times continuous. This series has the lowest
inertia to provide the maximum torque per package size.

AC servo motors - N-series
Continuous stall torque Continuous stall
amps
Speed RPM
@ 320V1
Motor
number2
Motor inertia
lb-in Nm lb-in-s2 Kg - cm2
3.9 0.45 1.49
0.79
7500
4000
BSM50N-133AX
BSM50N-175AX
0.00006 0.0677
6.8 0.77 2.0
1.8
1.0
9000
6000
4000
BSM63N-133AX
BSM63N-150AX
BSM63N-175AX
0.00018 0.2031
7.9 0.9 2.8
1.4
7500
3750
BSM50N-233AX
BSM50N-275AX
0.00011 0.125
12 1.36 4.5
2.3
7500
4000
BSM50N-333AX
BSM50N-375AX
0.00016 0.180
13 1.47 3.9
2.8
1.9
9000
6000
4000
BSM63N-233AX
BSM63N-250AX
BSM63N-275AX
0.00034 0.384
14.6 1.65 4.7
3.0
2.1
9000
6000
4000
BSM80N-133AX
BSM80N-150AX
BSM80N-175AX
0.00091 1.02
18.5 2.0 6.0
4.0
2.8
9000
6000
4000
BSM63N-333AX
BSM63N-350AX
BSM63N-375AX
0.0005 0.564
28.3 3.2 8.7
5.6
3.9
9000
6000
4000
BSM80N-233AX
BSM80N-250AX
BSM80N-275AX
0.00162 1.82
40 4.52 12.9
8.6
5.5
9000
6000
4000
BSM80N-333AX
BSM80N-350AX
BSM80N-375AX
0.00223 2.519
53 6 7.8
4.0
2.6
4000
2000
1200
BSM90N-175AX
BSM90N-1150AX
BSM90N-1250AX
0.0030 3.389
88 10 11.6
6.1
4.1
4000
2000
1200
BSM90N-275AX
BSM90N-2150AX
BSM90N-2250AX
0.0056 6.327
117 13.3 19
8.6
5.5
4000
2000
1200
BSM90N-375AX
BSM90N-3150AX
BSM90N-3250AX
0.0082 9.264
123 14 9.4
5.9
2000
1200
BSM100N-1150AX
BSM100N-1250AX
0.0120 13.558
203 23 15.5
9.9
2000
1200
BSM100N-2150AX
BSM100N-2250AX
0.0196 22.145
300 34 21.0
14.7
2000
1200
BSM100N-3150AX
BSM100N-3250AX
0.0273 30.844
354 40 26.9
16.8
2000
1200
BSM100N-4150AX
BSM100N-4250AX
0.0349 39.431