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Planetary Reducer - PHR Series

The PHR Series Inline Planetary Gearbox with round frame is designed to deliver high precision, strength, and efficiency for today’s demanding servo applications. Built with helical gear technology, it ensures smoother meshing, higher torque transmission, and quieter operation compared to straight-cut gears.

PHR Series

Precision power in a compact square design

High Torque Capacity
Precision Backlash Options
Robust Helical Gear Design
Compact Square Output Flange
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Technical Specifications

Specification Unit Stage Ratio PHR050 PHR070 PHR090 PHR120 PHR155 PHR205 PHR235
Rated output torque T2N Nm 1 3 20 55 130 208 342 588 1140
4
 19 50 140 290 542 1050 1700
5
 22 60 160 330 650 1200 2000
6
 20 55 150 310 600 1100 1900
7
 19 50 140 300 550 1100 1800
8
 17 45 120 260 500 1000 1600
10
 14 40 100 230 450 900 1500
2 15 20 55 130 208 342 588 1140
20
 19 50 140 290 542 1050 1700
25
 22 60 160 330 650 1200 2000
30
 20 55 150 310 600 1100 1900
35
 19 50 140 300 550 1100 1800
40
 17 45 120 260 500 1000 1600
50
 22 60 160 330 650 1200 2000
60
 20 55 150 310 600 1100 1900
70
 19 50 140 300 550 1100 1800
80
 17 45 120 260 500 1000 1600
100
 14 40 100 230 450 900 1500
Emergency stop torque T2NOT
 Nm 1,2 3-100 Triple rated output torque
Rated input speed η1N
 rpm 1,2 3-100 5000 5000 4000 4000 3000 3000 2000
Maximum input speed η1B
 1,2 3-100 10000 10000 8000 8000 6000 6000 4000
Standard backlash P0 arcmin 1 3-10 < 5 < 1
2 15-100 < 8 < 2
Standard backlash P1 arcmin 1 3-10 < 8 < 3
2 15-100 < 10 < 5
Standard backlash P2 arcmin 1 3-10 < 12 < 5
2 15-100 < 16 < 8
Torsional rigidity Nm/arcmin 1,2 3-100 3 7 14 25 50 145 225
Allowable radial force F2aB		 N 1,2 3-100 780 1530 3250 6700 9400 14500 50000
Allowable axial force F2aB
 N 1,2 3-100 390 765 1625 3350 4700 7250 25000
Lifespan
 hr 1,2 3-100 20000
Efficiency
 % 1 3-10 ≥ 97%
2 15-100 ≥ 94%
Weight
 Kg 1 3-10 0.6 1.2 3.7 7.5 16 36 53
2 15-100 0.7 1.6 4.2 10.7 17 37 54
Working temprature
 °C 1,2 3-100 -20°C ~ 90°C
Lubricating
 1,2 Synthetic lubricating grease
IP Grade
 1,2 3-100 IP65
Installation direction
 1,2 3-100 In any direction
Noise level (η1=3000rpm,off load)
 dB(A) 1,2 3-100 ≤ 56 ≤ 58 ≤ 60 ≤ 63 ≤ 65 ≤ 67 ≤ 70
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Specifications

Industrial Motor

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