Specifications HR0610 Envelope Specification: Honeywell Model HR 0610 Reaction Wheel Our Model HR 0610 Reaction Wheel provides a high-speed, lowweight solution for small spacecraft. Standard microelectronics provide flexibility for wheel performance over a wide range of spacecraft interfaces. Economical, Compact, Lightweight Cross Sectional View Momentum Vector Cube Mount Assembly Fixed Bearing Assembly Cover Evacuation Port Motor Rotor Sight Glass Performance Characteristics: PARAMETER Case J1 Interface Connection (not shown) Hall Assembly Power CCA Mechanical Design Advanced momentum package design Single-piece tuned inertia rotor for controlled balance stability Low emitted vibration Interchangeable modular rotor momentum sizing Innovative lightweight housing chassis Compact design with high momentum-to-mass efficiency Lightweight magnesium alloy chassis Electronics physically isolated from the precision rotating system Heritage duplex bearing and lubrication Space-proven extended on-orbit life capability Wide temperature environmental range Thermistor Float Bearing Assembly Signal SCA Electrical Design Simplified electrical interface Standard analog IF Low to medium bus voltage application Return power limiting feature DC brushless motor Integrated motor drive electronics Signal noise filtering and fault isolation Radiation hardened for LEO and GEO applications Over/under voltage and over-speed protection Angular Momentum at Max.Speed Output Torque at Max.Speed Peak Power at Max. Torque and Speed Power Holding at Max.Speed Power Bus Voltage Wheel Speed Mass Outside Diameter Height Integrated Electronics Life Requirement Radiation Hard Part Screening Bearing Operational Temperature Range Vibration Motor Type Interface Static Unbalance Dynamic Unbalance UNIT CAPABILITY N-m-s N-m Watts Watts Volts rpm kg mm mm Yes/No Years krad(Si) Level Size deg C-Lo deg C-Hi Grms AC/DC Analog/Digital gm-cm gm-cm2 4 to 12 .055 <80 <15 14 to 23 6000 3.6 to 5.0 267 120 Yes >10 300 S R4 -15 +60 19.8 DC Analog <0.2* <3.1* *Balance performance represents BOL, Fine Balance Option, in a fully flight assembled configuration following ATP environmental exposure, as delivered. Further improvement of balance performance of > 2X is possible. Integrated Hall commutation and speed telemetry N61-0098-000-000 DFOISR: 03-S-1924 HR610 December 2003 Printed in U.S.A. on Recycled Paper © 2003 Honeywell International Inc. . . www honeywell com Aerospace Electronic Systems Defense & Space Electronic Systems Honeywell P.O. Box 52199 Phoenix, Arizona 85072-2199 Telephone: (602) 822-3000 www.honeywell.com/dses/space