5.)API Resolver SelectionGuide

Harowe® Resolvers
Selection Guide
Harowe® Resolvers Selection Guide
Able to withstand the most challenging environments, Harowe Resolvers can operate at temperatures
of up to 200°C, and have unmatched mechanical shock and vibration specs. Designed with durability
and performance in mind, Harowe Resolvers are guaranteed to reduce failure rates and extend life.
The shielded, spaced-support bearings provide 10x the life of standard, duplex bearings, while
toothwound models reduce electrical error by 50 percent. Brushless models eliminate the need for
multiple components, which can dramatically limit life. As the most durable and rugged feedback
option, Harowe Resolvers are the perfect choice for applications
that operate in conditions involving extreme temperature,
high shock and vibration, and dirty environments.
Application / Industries:
• Aerospace & Defense
• High Lift, Spoiler,
and Horizontal Stabilizer
• Motor Commutation
• Guidance and Navigation
• Cockpit Controls
• Control Surface Feedback
• Electro-Optic
and Radar
• Nosewheel
Feedback
• Target Acquisition
Systems
• Gun Trunnions
• Forward-Looking-Infra-Red
(FLIR) Systems
• Electro-Optical Systems
• Radar Systems
• Missile Seekers
• Downhole Oil & Gas
• Well Drilling
• Formation Evaluation
• Well Intervention
• Oil and Gas Production
• Medical
• Medical Instrumentation
• Medical Imaging
For additional information contact an API Delevan representative at 1.716.652.3600,
visit our website at delevan.com, or email: Resolver@delevan.com
BRUSHLESS ULTRA- PERFORMANCE RESOLVERS
FRAMELESS
HOUSED
Nominal
Size (OD)
Mounting
System
Mill-Duty
11
R11
Series R25
10
15
21
31
55
1.1 inch
1.1 inch
2.5 inch
1.0 inch
1.5 inch
2.1 inch
3.1 inch
5.5 inch
1.5 inch
2.1 inch
Servo
Servo
Flange/
Servo
Flange/
Servo
Flange/
Servo
Flange/
Servo
Flange/
Servo
Flange/
Servo
Flange/
Servo
Flange/
Servo
Flux Shield
Technology
Shaft/Max
Bore Sizes
Shaft Size:
0.120˝
(3.05mm)
Input Volts
(Vrms)
2 to 26
Shaft Size: Shaft Size:
0.120
0.3745˝
(3.05mm) (9.51mm)
2 to 6
Input
Frequency (Hz) 400 to 5K 2K to 10K
Transformation
.39 to 1.75 .45 to 1.4
Ratio
Resolver Speed
(electrical/
mechanical
cycles)
Electrical Error
(Accuracy) for
1X versions only
Heavy-Duty
High Accuracy
Heavy-Duty
2 to 8
Heavy-Duty
HaroMax 15 HaroMax 21
Max Bore Max Bore Max Bore Max Bore
Max Bore Max Bore
Max Bore
Size: 0.25˝ Size: 0.472˝ Size: 0.800˝ Size: 1.576˝ Size: 3.651˝ Size: 0.472˝ Size: 0.800˝
(6mm)
(12mm)
(20mm)
(12mm)
(20mm)
(40mm)
(93mm)
2 to 12
2 to 12
2 to 12
2 to 12
2 to 12
2 to 12
2 to 12
2K to 10K 2K to 10K
2K to 10K
2K to 10K 2K to 10K
2K to 10K
2K to 10K
2K to 10K
.25 to 1.0
.25 to 1.0
.25 to 1.0
.25 to 1.0
.25 to 1.0
.25 to 1.0
.25 to 1.0
.25 to 1.0
Multi-speeds Multi-speeds
available
available
(up to 8X) (up to 32X)
1X
1X
±5
arcmin
±5
arcmin
1X, 2X,
4X or 5X
1X
1X, 2X,
or 3X
1X
1X, 2X,
3X or 4X
1X, 2X,
3X or 4X
±3
arcmin
±6
arcmin
±7
arcmin
± 15
arcmin
± 10
arcmin
±7
arcmin
± 20
arcmin
± 30
arcmin
Bearing Load 17 lb (static) 61 lb (static) 303 lb (static)
148 lb
44 lb
741 lb
Ratings
(dynamic)
(dynamic)
(dynamic)
Max Bearing
Radial Play
.0002 to
.0005 in
.0003 to
.0009 in
.0002 to
.0005 in
Bearing Type
Type
ABEC 3
Type
ABEC 1
Type
ABEC 1
High
Shock, Vibration
shock
and Radiation
resistance
Resistance
Operating
Temperature
Housing
Material
Enclosure
Rating
High
shock
resistance
Up to
125°C
Up to
125°C
Steel
Steel
Shock:
200g
Vibration:
40g
Up to
125°C
Aluminum
High shock, High shock, High shock, High shock, High shock,
High shock
vibration and vibration and vibration and vibration and vibration and High shock and vibration
radiation
radiation
radiation
radiation
radiation and vibration resistance
resistance resistance resistance resistance
resistance resistance
Up to
200°C
Steel
Up to
200°C
Up to
200°C
Steel or
Steel or
Aluminum Aluminum
Up to
200°C
Up to
200°C
Up to
200°C
Up to
200°C
Steel
Steel
Aluminum
Aluminum
(IP65)
SELECTION CRITERION
1
2
3
Mechanical
Construction
Housed or Frameless
Input
Shaft OD or Bore ID
Special Considerations
Operating Temperature
High Shock
High Vibration
Radiation Hardening
High RPM
Other
1
2
3
4
5
6
7
Electrical
Primary
Speed
Excitation Voltage
Excitation Frequency
Output Voltage
or
Transformation Ratio
Accuracy
Maximum Phase Shift
Rotor or Stator
Single or Multiple
Vrms
Hz
Vrms
arc min
degrees
Consult our Engineering Department for any Customized Needs
Frameless Brushless Resolvers
Harowe's frameless resolvers generate speed and position data for
aerospace servo applications, as well as commutating brushless servo
motors. The frameless construction simplifies mounting mechanics
because the rotor mounts directly onto the motor shaft and the stator
housing mounts directly onto the motor end bell.
• Frame Sizes: Between 10 and 55 • Stainless Steel Housing
• Multiple Speeds
• Flux Shielding Technology
• Radiation Hardened
• Up to 200ºC Temperature Range
Series R25 Heavy Duty Resolver
Harowe's heavy duty housed resolver provides a very tough package
to withstand extreme abuse. Made of aluminum and steel with high
integrity seals, they are capable of measuring rotary motion with the
accuracy of many delicate encoders.
• Rugged Housing with IP65 Rating
• Spaced Bearings for up to 10x the Life of Traditional Duplex Bearings
• Withstands 200g Shock and 40g Vibration
Series 11 Housed Brushless Resolver
The ideal mate for brushless servomotors, the Series 11 uses a rotary
transformer to pass the reference signal to the rotor, eliminating
components that can limit life and cause noise. The Series 11 Housed
Brushless Resolver offers excellent accuracy and repeatability.
• Up to 125°C Temperature Range
• Radiation Hardened
• Short Mounting Depth for Easy Mounting
270 Quaker Road
East Aurora, New York 14052 USA
1.716.652.3600
email: Resolver @ delevan.com
www.delevan.com
HRSG #2-0715