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You are bidding on a GREAT USED CONDITION: SUPERIOR ELECTRIC SLO-SYN STEPPING MOTOR M091-FD-450 as can be seen in the pictures.  Herman Miller 133141 Cabinetry

Description:

Superior Electric step motors provide very precise, cost effective, motion control.

Superior step motors inherently move in small, very precise, 1.8° increments (200 / revolution).

This stepping action is simple to control and does not require complicated, expensive feedback devices.

With microstepping drives, each 1.8° step can be broken into even smaller increments. And, if position verification is required, motors are available with encoders.

Due to their ease of use, simplified control needs and freedom from expensive feedback requirements, Superior

step motors are excellent alternatives to pneumatic, hydraulic and servo motor systems.

Typical Applications

• Automation and inspection

• Conveyor transfer

• Cut-to-length metal, plastic,

fabric, etc.

• Industrial HVAC

• Material handling

• Medical equipment

• Office peripheral equipment

• Packaging systems

• Pick-and-place applications

• Printing systems

• Robotics

• Semiconductor manufacturing

Introduction

To Step Motors

High Torque Motor Construction

Sizing and Selection Software for

Superior Electric Products

Step motor systems are often used in high performance

positioning systems.

The correct motor and drive are equally important for the system to meet performance and cost goals.

To select a motor and drive for a given situation requires an analysis of the load, mechanical

system and desired cycle times or speeds.

Danaher Motion

Superior Electric is a Danaher Motion brand, and is

recognized worldwide as the leading manufacturer of step

motor positioning systems. Over 40 years ago, Superior

Electric developed and patented their Superior step motor

products.

The Superior Electric family of automation products

includes:

• Step Motors

• Step Motor Drives

• Motion Controls

• Synchronous Motors

Superior Electric's new line of NEMA

size 42 high torque motors complements and extends the

range of our size 23 and 34 high torque motors. These high

torque motors provide world-class performance, and

represent the best value ever offered by Superior Electric.

They provide twice the torque (and in some cases more than

twice the torque) of older conventional step motors.

Your partner in Motion Control

Danaher Motion has extensive experience customizing

motors to meet our customer’s specific design requirements.

Our engineering staff will work with you to achieve your

product performance goals. Superior Electric provides motion control

solutions for a wide variety markets and applications

including:

• Semiconductor manufacturing

• Packaging

• Printing

• Industrial Automation

• Testing and measurement

Flexible manufacturing capabilities enable us to deliver

specialized product quickly – helping you meet your

development cycle objectives.

Danaher Motion offers a comprehensive line of motors,

drives, controls, and actuators designed to optimize the

performance of motion control systems. These address a

wide array of requirements, ranging from simple repetitive

moves to complex multi-axis motion. On-going product

development enables Danaher Motion to provide innovative,

leading edge solutions to our customers.

One of the best reasons to select a Superior Electric product

is Danaher Motion's superior service and support. Our

products are available globally through the industry’s most

extensive and experienced distributor network. These

trained distributors provide valuable technical assistance, in

addition to fast delivery and service. A team of application

engineers backs our distributor network. The combined

experience of this support system ensures that our

customers receive prompt, quality attention to their needs,

no matter where they are located.

Further assistance and support is provided on the web at

www.DanaherMotion.com. 

Characteristics of Superior Electric

Step Motors

• Brushless, permanent magnet motors

• Operate in full-step (1.8°) or half-step (0.9°) increments

• Microstepping provides increments as small as 0.0072°

• Accuracies of ±2% (0.036°) for size 23 and 34 motors,

and ±5% (0.09°) for size 42 and 66 motors

• Speeds up to 20,000 steps per second (6,000 rpm)

• Holding torque ratings from 54 to 5,330 oz-in (38 to

3,764 N-cm)

• Wide range of configurations and frame sizes

• Easily adapted to different control types, including

microprocessor based systems

• Class B insulation, operate at ambient temperatures from

-40°C to +65°C (-40°F to +149°F)

• No brushes, ratchets or detents to wear out

• Lubricated-for-life ball bearings

Comparison of Servomotors versus

Step Motors

Often, when a motion control system is being specified, the

designer must choose between a step motor system and a

servomotor system. In most cases, a well designed step motor

system will perform as well or better than a servomotor, and at

lower cost. The following comparison of the characteristics of

the two types of motors outlines some of the advantages of step

motors for motion control.

Servomotor Characteristics

• Require complex, expensive control systems

• Position sensing devices needed for feedback to control

• Relatively low torque for size

• Thermally inefficient

• Control system must be “tuned� to load; must be “retuned�

if load is changed

• Brushes on DC servomotors subject to wear

Superior Electric Step Motor Characteristics

• Relatively inexpensive

• Can be operated “open-loop� (no position feedback required)

• Noncumulative step error

• Simple control electronics can be used

• Brushless construction aids reliability

• Maintenance free

• Will not be damaged if stalled

• High torque for size

• Maintain position when at rest

Construction of Step Motors

A Superior Electric step motor is a brushless motor consisting of

a rotor and a stator assembly. The illustration shows the

internal construction and tooth alignment of the motor. The

fine teeth, evenly spaced around the entire diameter, provide the

incremental angular rotation that results in mechanical motion.

Superior Electric step motors are constructed with a 48-50 or a

52-50 tooth pitch configuration. The second number, 50, refers

to the number of teeth on the rotor. The 50 teeth, combined

with the two phase winding configuration and permanent

magnet construction, deliver a 1.8° step angle. Both

configurations have a slightly different tooth pitch

on the stator (48 or 52) to provide smoother

operation and softer step-to-step motion with

less resonance or mechanical instability at

low speed. The 52 tooth stator design is

used in the new KM motors to provide

extra torque. Superior Electric holds the

original patent on the 48-50 design.

Technical Notes Stepping Techniques:

The terms full-step, half-step and microstep are commonly used in

the discussion of step motors.

A standard 1.8° step motor has 200 discrete positions in a full 360°

revolution. Since 360° divided by 200 equals 1.8°, the motor shaft

will advance 1.8° each time the motor is given a digital command to

take one step. This is known as a full-step.

The term “half-step� indicates a 0.9° step angle (half of a full 1.8°

step). This is achieved with a switching technique that alternately

applies positive current, no current, and negative current to each

winding in succession.

The term “microstep� refers to a more sophisticated form of control

which goes beyond the simple switching of power between phase A

and phase B of the motor windings, and takes control of the

amount of current being sent to the individual windings.

Microstepping permits the shaft to be positioned at places other

than the 1.8° or 0.9° locations provided by the full-step and halfstep

methods. Microstepping positions occur between these two

angular points in the rotation of the rotor.

The most commonly used microstep increments are 1/5,

1/10,1/16,1/32, 1/125 and 1/250 of a full step. Microstep increments

chosen by Superior Electric simplify control of both US and metric

units of measurement, and also allow finer positioning resolution.

While a full step of 1.8° will give a 0.001 inch resolution when the

motor is driving through a lead screw which has a 0.2000 inch lead,

resolutions of 0.000008 inch or less are possible using

microstepping.

A major benefit of microstepping is that it reduces the amplitude of

the resonance that occurs when the motor is operated at its natural

frequency or at sub-harmonics of that frequency. The improved

step response and reduced amplitude of the natural resonances

result from the finer step angle.

1.Planetary Output . . .

Unique technology is built into the

gearhead to deliver “The Helical

Advantage� at the load-carrying

output section.

2.Spiral Bevel Gears . . .

Deliver high efficiency and

high torque in a compact,

right angle package.

3.High Speed Input . . .

Helical gearing provides high input speeds

with quiet operation. Input cavity surrounds

the gears for constant lubrication in any orientation.

4.Patented Motor Mounting . . . Design ensures

error-free installation and the balanced pinion allows higher

input speeds.

5.Compact Design . . . 2 package lengths per frame size, 1 for ratios ≤ 10:1,

1 for > 10:1. Two lengths provides for a shorter packages for ratios ≤ 10:1.

6. IP65 Sealed Unit . . . Seals and O-Rings provide IP65 protection to prevent leaks and protect against

harsh environments

New P Series Planetary Gearheads are available as In-Line (PM Series) and Right Angle (PT Series)

Models. They provide 30% more torque than their predecessors while operating faster, quieter, and

with more accuracy.

New P Series Planetary Gearheads

Specifications:

Efficiency: PM Series 90% • PT Series 92%

Noise: With 3000 RPM input speed, measured at 1 meter - 70dB

Ratios: 5:1, 10:1, 20:1, 50:1, 100:1

Overall Condition Good 
Cosmetics Good 
Functionality Excellent 
Completeness Complete / With everything seen in pictures 

Includes everything pictured. 

Professionally de-installed and ready for shipment.

Complete system is in working and cosmetic conditon.

No disappointments! 

 Professional packing, FREE shipping & insurance.

100% satisfaction guarantee.

Please check our 100% feedback rating and bid with confidence.

As always, we welcome any serious questions email.

Our items are available for viewing in our warehouse at any time throughout the duration of the listing. Please email for appointment.

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