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.

Technical Specifications

Specification	Unit	Stage	Ratio	PHR050	PHR070	PHR090	PHR120	PHR155	PHR205	PHR235
Rated output torque T_2N	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 T_2NOT	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	rpm	1,2	3-100	10000	10000	8000	8000	6000	6000	4000
Standard backlash P0	arcmin	1	3-10	< 5	< 1
Standard backlash P0	arcmin	2	15-100	< 8	< 2
Standard backlash P1	arcmin	1	3-10	< 8	< 3
Standard backlash P1	arcmin	2	15-100	< 10	< 5
Standard backlash P2	arcmin	1	3-10	< 12	< 5
Standard backlash P2	arcmin	2	15-100	< 16	< 8
Torsional rigidity	Nm/arcmin	1,2	3-100	3	7	14	25	50	145	225
Allowable radial force F_2aB	N	1,2	3-100	780	1530	3250	6700	9400	14500	50000
Allowable axial force F_2aB	N	1,2	3-100	390	765	1625	3350	4700	7250	25000
Lifespan	hr	1,2	3-100	20000
Efficiency	%	1	3-10	≥ 97%
Efficiency	%	2	15-100	≥ 94%
Weight	Kg	1	3-10	0.6	1.2	3.7	7.5	16	36	53
Weight	Kg	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