Servomotor series JHN, JHQ, and JL – User Manual
General technical data
Jetter AG
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This also applies if the motor is mounted to a gear unit or if the mechanical flange is smaller than
the calculated one. All torque data were also determined using cold plates. The size of the cold
plates was calculated according to chapter 8.2.4. Cooling plate.
If the ambient temperature exceeds 40 °C, the derating factor is automatically taken into account in
the calculations.
A cooling device or a fan is needed when applying the motors at an ambient temperature greater
than 80 °C.
y-axis: Derating factor
x-axis: Ambient temperature in [°C]
Points P0
P1
P2
°C
20
30
40
50
60
65
70
75
80
80
Factor
1
1
1
0.93
0.845
0.8
0.76
0.72
0.67
0
4.6 Design of the JHN and JL series
Parameter
Description
Design
B5, V1, V3
Coating
Matt black to RAL 9005
Ball bearing service life
> 20,000 operating hours
Flange
Flange size to IEC standard, fit j6, accuracy to DIN 42955, tolerance class: R
Degree of protection
IP65 (without shaft seal)
Insulation class
F acc. to VDE 0350
Coolant
Natural air cooling
Cooling plate
Length of cooling plate in mm = 2.5 x motor flange size in mm; cooling plate
thickness = 3.5 mm
Cooling plate width = cooling plate length
Ambient temperature
-15 ... +40 °C
Thermal motor protection
KTY 83-110; alternative: PTC, or PT-1000
