Rotary Joints
HRM-RPA Series
ꢀFeatures
1.Long Life
These non-contact rotary joints have a long life of
3
10 hours or greater (at 500 r.p.m.).
2.High Performance
High frequency characteristics feature extremely
low loss and a high degree of matching.
V.S.W.R. 1.25 or less (HRM-RPA-JJ-3 1.5~1.7GHz)
HRM-RPA-JJ-3
3.Low Torque Rotation
Rotation at low torque permits high speed rotation.
Torque of 50 g•cm
HRM-RPA-JJ
ꢀProduct Specifications
Frequency range (Note)
1.5 to 12.4 GHz
50 ohms
-10ç to +65ç
95% Max.
Operating temperature range
Operating relative humidity
Characteristic impedance
Ratings
Maximum Input Power (Note
)
1 to 30 W
NOTE: The frequency range and maximum usable power will depend on the model.
Item
Standard
Conditions
1.Insulation resistance
2.Contact resistance
100 V DC
Measured / 1 A DC
1,000 M ohms min.
5 m ohms max.
Frequency of 10 to 500 Hz, overall amplitude of 1.5 mm,
3.Vibration
4.Shock
2
No damage, cracks, or parts dislocation
acceleration of 98 m/s for 4 hours in each of 3 directions
2
Acceleration of 98 m/s , sine half-wave waveform, 3 cycles in each of the 3 axis
ꢀThe test method conforms to MIL-STD-202.
ꢀMaterials
ꢀSpecifications
Part
Body
Materials
Brass
PTFE
Finish
Nickel plating
----------
Gold plating
----------
Part Number
HRM-RPA-JJ-3
HRM-RPA-JJ
Insulator
Female contact
Ball bearings
Frequency Range
(GHz)
V.S.W.R.(Max)
Insertion Loss
(dB Max)
1.5~1.7
1.25
5~12.4
1.5
Beryllium copper
----------
0.4
0.4
ꢀExternal Dimensions
WOW
5.8 (Spanner width)
0.2
0.2
0.1
0.1
(dB/360° Max)
V.S.W.R. Rotational
(360° Max)
Rotational Speed
(R•P•M)
500
500
Durability(Insertion/withdrawal)
(hrs)
1,000 (at 500R
•P
•M) 1,000 (at 500R•P•M)
Starting Torque
510
HRM-J
30
510
HRM-J
30
.
(mN m Max)
Connectors
Weight
(g)
ꢀTypical Data
145