PRE 120 Frame

PRE is part of the latest generation economy product family from Nidec Drive Technology Corporation. The PRE redefines the economy planetary gearbox segment by featuring helical cut gearing and a robust internal structure. Our customers benefit from a cost-effective, flexible, reliable design that can be adapted into a wide range of servo and stepper motor axes.

Downloads

Selection Configurator

PRE 120 Series Catalog

Installation Manual

Technical Data

PRE 120 Frame Size, 1 Stage Specifications

Ratio	Units	Note	3	4	5	8	9	10
Nominal Output Torque	[Nm]	*1	225	330	330	330	225	225
Maximum Output Torque	[Nm]	*2	340	490	490	480	370	370
Emergency Stop Torque	[Nm]	*3	500	550	550	550	500	500
Nominal Input Speed	[rpm]	*4	3000	3000	3000	3000	3000	3000
Maximum Input Speed	[rpm]	*5	6000	6000	6000	6000	6000	6000
No Load Running Torque	[Nm]	*6	1.30	1.30	1.30	1.30	1.30	1.30
Maximum Radial Load	[N]	*7	2000	2000	2000	2000	2000	2000
Maximum Axial Load	[N]	*8	2800	2800	2800	2800	2800	2800
Moment of Inertia (≤Ø 19)	[kgcm2]	–	2.38	1.45	1.17	0.88	0.85	0.83
Moment of Inertia (≤ Ø 28)	[kgcm2]	–	4.41	3.48	3.13	2.89	2.86	2.84
Moment of Inertia (≤ Ø 38)	[kgcm2]	–	12.27	11.34	11.05	10.72	10.69	10.67
Efficiency	[%]	*9	95	95	95	95	95	95
Torsional Rigidity	[Nm/arc-min]	*10	15	15	15	15	15	15
Maximum Torsional Backlash	[arc-min]	–	≤ 8	≤ 8	≤ 8	≤ 8	≤ 8	≤ 8
Noise Level	dB [A]	*11	≤ 65	≤ 65	≤ 65	≤ 65	≤ 65	≤ 65
Protection Class	–	–	IP54	IP54	IP54	IP54	IP54	IP54
Ambient Temperature	[°C]	–	0-40	0-40	0-40	0-40	0-40	0-40
Permitted Housing Temperature	[°C]	—	90	90	90	90	90	90
Weight	[kg]	*12	6.8	6.8	6.8	6.8	6.8	6.8

PRE 120 Frame Size, 2 Stage Specifications

Ratio	Units	Note	12	15	16	20	25	32
Nominal Output Torque	[Nm]	*1	225	225	330	330	330	330
Maximum Output Torque	[Nm]	*2	270	270	390	390	390	390
Emergency Stop Torque	[Nm]	*3	500	500	550	550	550	550
Nominal Input Speed	[rpm]	*4	3000	3000	3000	3000	3000	3000
Maximum Input Speed	[rpm]	*5	6000	6000	6000	6000	6000	6000
No Load Running Torque	[Nm]	*6	0.42	0.42	0.42	0.42	0.42	0.42
Maximum Radial Load	[N]	*7	2000	2000	2000	2000	2000	2000
Maximum Axial Load	[N]	*8	2800	2800	2800	2800	2800	2800
Moment of Inertia (≤Ø 19)	[kgcm2]	–	1.32	1.08	1.07	0.93	0.92	1.03
Moment of Inertia (≤ Ø 28)	[kgcm2]	–	3.31	2.97	3.06	2.93	2.91	3.03
Moment of Inertia (≤ Ø 38)	[kgcm2]	–	–	–	–	–	–	–
Efficiency	[%]	*9	90	90	90	90	90	90
Torsional Rigidity	[Nm/arc-min]	*10	15	15	15	15	15	15
Maximum Torsional Backlash	[arc-min]	–	≤ 10	≤ 10	≤ 10	≤ 10	≤ 10	≤ 10
Noise Level	dB [A]	*11	≤ 65	≤ 65	≤ 65	≤ 65	≤ 65	≤ 65
Protection Class	–	–	IP54	IP54	IP54	IP54	IP54	IP54
Ambient Temperature	[°C]	–	0-40	0-40	0-40	0-40	0-40	0-40
Permitted Housing Temperature	[°C]	—	90	90	90	90	90	90
Weight	[kg]	*12	8.8	8.8	8.8	8.8	8.8	8.8

Ratio	Units	Note	40	50	80	100
Nominal Output Torque	[Nm]	*1	330	280	280	225
Maximum Output Torque	[Nm]	*2	390	390	390	292
Emergency Stop Torque	[Nm]	*3	550	550	550	500
Nominal Input Speed	[rpm]	*4	3000	3000	3000	3000
Maximum Input Speed	[rpm]	*5	6000	6000	6000	6000
No Load Running Torque	[Nm]	*6	0.42	0.42	0.42	0.42
Maximum Radial Load	[N]	*7	2000	2000	2000	2000
Maximum Axial Load	[N]	*8	2800	2800	2800	2800
Moment of Inertia (≤Ø 19)	[kgcm2]	–	0.76	0.80	0.79	0.79
Moment of Inertia (≤ Ø 28)	[kgcm2]	–	2.75	2.78	2.78	2.78
Moment of Inertia (≤ Ø 38)	[kgcm2]	–	–	–	–	–
Efficiency	[%]	*9	90	90	90	90
Torsional Rigidity	[Nm/arc-min]	*10	15	15	15	15
Maximum Torsional Backlash	[arc-min]	–	≤ 10	≤ 10	≤ 10	≤ 10
Noise Level	dB [A]	*11	≤ 65	≤ 65	≤ 65	≤ 65
Protection Class	–	–	IP54	IP54	IP54	IP54
Ambient Temperature	[°C]	–	0-40	0-40	0-40	0-40
Permitted Housing Temperature	[°C]	—	90	90	90	90
Weight	[kg]	*12	8.8	8.8	8.8	8.8

Continuous rating at 100% duty cycle, S1 operation, measured at 100rpm output and 30°C
Permitted for 30,000 output shaft revolutions. Note operation factor on Selection Flow Chart, page 469
The maximum torque allowed under a stress situation. Permitted 1,000 times during service life
The average input speed at nominal torque. Maintain housing temperature below permitted value
The maximum intermittent input speed
Torque at no load applied to the input shaft at nominal input speed
The maximum radial load that the gearbox can accept
The maximum axial load that the gearbox can accept
The efficiency at the nominal output torque ratings
This does not include lost motion
Contact Nidec Drive Technology for the testing conditions and environment
Weight may vary slightly between models

PRE 120 1 Stage Dimensions

PRE 120 2 Stage Dimensions

Motor Mounting Codes

Our motor mounting codes can be configured automatically using our online selection tool. These tables supply the details behind these codes. The tables start with Input Bore measurement and the Part # Code, which are indicated at the end of every model code.
For each Part # Code, the Pilot, BCD, Tapped Hole, and Pilot Depth, are explained.

Please note that even though the Part# Code may have the same letters (i.e. DC, FB, HA, etc.), the Pilot and BCD dimensions may not be the same if a different input bore diameter. Locate the table by input bore diameter first, and then find the appropriate adapter Part# Code to check the dimensions. If you have any questions, contact Nidec Drive Technology for support.

65, 48, and 38 Input Bore Mounting Code Tables

Input Bore (mm)	Part # Code	Pilot (mm)	BCD (mm)	Tapped Hole	Pilot Depth (mm)
65	MA	114.3	200	M12	8
65	MB	200	235	M12	8
65	MC	180	215	M12	8
65	MD	180	265	M12	8
65	NA	230	265	M12	8
65	NB	230	265	M12	18
65	NC	230	290	M12	8
65	ND	230	265	M20	18
65	PA	250	300	M16	8
65	PB	250	320	M16	18
65	QA	300	350	M16	8
65	QB	280	325	M16	8

Input Bore (mm)	Part # Code	Pilot (mm)	BCD (mm)	Tapped Hole	Pilot Depth (mm)
48	KA	114.3	200	M12	8
48	KB	110	130	8.8	8
48	KC	130	215	M12	8
48	LA	180	215	M12	8
48	MA	180	265	M12	8
48	MB	200	235	M12	8
48	NA	230	265	M12	8
48	PA	250	300	M16	8

Input Bore (mm)	Part # Code	Pilot (mm)	BCD (mm)	Tapped Hole	Pilot Depth (mm)
38	HA	110	130	8.8	8
38	HB	110	145	M8	8
38	HE	110	130	M8	8
38	JA	130	165	M10	8
38	KA	114.3	200	M12	8
38	KB	130	215	M10	8
38	KC	130	215	M12	8
38	KD	95	200	M10	18
38	KE	114.3	200	M12	18
38	LA	180	215	M12	8
38	LB	180	215	M12	18
38	MA	180	265	M12	8
38	MB	200	235	M12	8
38	MC	215.9	184.15	13.7	5.5
38	MD	200	250	M8	18
38	NA	230	265	M12	8

28, 19, and 14 Input Bore Mounting Code Tables

Input Bore (mm)	Part# Code	Pilot (mm)	BCD (mm)	Tapped Hole	Pilot Depth (mm)
28	FA	80	100	M6	8
28	FB	95	115	M6	8
28	FC	95	115	M8	8
28	FD	95	115	M6	8
28	FE	95	115	M8	6
28	GA	55.563	125.73	M6	8
28	GB	63.5	127	M6	8
28	GC	95	130	M8	8
28	GD	110	130	M8	8
28	GE	110	130	M10	8
28	GF	110	130	8.8	8
28	GG	110	135	M8	8
28	GH	95	135	M8	8
28	HA	110	145	M8	8
28	HB	110	145	M8	18
28	HC	110	145	10.5	8
28	HD	114.3	149.23	10.5	8
28	HE	95	145	M8	18
28	HF	110	145	M8	8
28	JA	110	165	M8	8
28	JB	110	165	M10	8
28	JC	130	165	M10	8
28	JD	130	174	M10	28
28	JE	130	165	M10	18
28	JF	114.3	160	M10	8
28	KA	114.3	200	M12	8
28	KB	130	215	M10	8
28	KD	114.3	200	M12	18
28	KE	150	185	M10	8
28	LA	180	215	M12	8
28	LB	180	220	M12	18
28	MA	200	235	M12	8
28	MB	200	250	M8	18

Input Bore (mm)	Part# Code	Pilot (mm)	BCD (mm)	Tapped Hole	Pilot Depth (mm)
19	DA	60	90	M5	6
19	DB	70	90	M5	6
19	DC	70	90	M6	6
19	DD	70	90	M6	16
19	DE	70	90	M5	11
19	EA	73.025	98.43	M5	11
19	EB	80	100	M6	6
19	EC	80	100	M6	16
19	ED	60	98.99	M6	6
19	FA	95	115	M8	6
19	FB	95	115	M8	16
19	GA	55.563	125.73	M6	11
19	GB	95	130	M8	6
19	GC	110	130	M8	11
19	GD	110	130	8.8	6
19	GE	95	130	M8	16
19	GF	100	125	M8	16
19	GH	95	135	M8	11
19	HA	110	145	M8	6
19	HB	110	145	M8	21
19	HC	110	145	10.5	11
19	HD	114.3	149.23	M8	11
19	HE	114.3	149.23	10.5	11
19	JA	130	165	M10	16
19	JB	115	165	M8	21

Input Bore (mm)	Part# Code	Pilot (mm)	BCD (mm)	Tapped Hole	Pilot Depth (mm)
14	BA	38.1	66.68	M4	5
14	BB	38.1	66.68	M5	5
14	BC	38.1	66.68	M5	10
14	BD	40	63	M4	5
14	BE	40	63	M5	5
14	BF	40	65	M5	5
14	BG	40	70	M4	5
14	BH	50	60	M4	10
14	BJ	50	70	M4	5
14	BK	50	70	M5	5
14	BL	50	70	M5	15
14	BM	50	70	M5	10
14	BN	50	70	M4	10
14	BP	36	70.71	M4	5
14	CA	60	75	M5	5
14	CB	60	75	M6	10
14	CC	60	80	M4	5
14	DA	50	95	M6	5
14	DB	60	85	M5	5
14	DC	60	90	M5	5
14	DD	70	85	6.5	5
14	DE	70	90	M5	10
14	DF	70	90	M6	5
14	DG	70	90	M6	15
14	DH	70	95	M6	5
14	DJ	60	95	M5	5
14	DK	36.8	82.024	M6	15
14	DL	62	91.924	M5	10
14	EA	50	100	M6	5
14	EB	73.025	98.43	M5	5
14	EC	80	100	M6	5
14	ED	80	100	M6	15
14	EE	73.025	98.43	M6	15
14	EF	50	98.43	M5	5
14	EG	60	98.995	M5	5
14	EH	80	105	M6	15
14	EJ	60	98.995	M6	10
14	EK	73.025	98.43	M6	5
14	EL	73	94	M6	5
14	EM	83	104	M8	10
14	FA	60	115	M6	5
14	FB	95	115	M8	15
14	GA	80	139.7	M6	5
14	GB	80	130	M5	20
14	GC	94	120	M8	10
14	JA	115	165	M8	10

8 and S8 Input Bore Mounting Code Tables

Input Bore (mm)	Part# Code	Pilot (mm)	BCD (mm)	Tapped Hole	Pilot Depth (mm)
8	AA	20.02	46.69	M3	5
8	AB	22	43.82	4.7	10
8	AC	22	48	M3	5
8	AD	22.22	50.8	M3	5
8	AE	25.4	38.89	4	10
8	AF	30	45	M3	5
8	AG	30	46	M4	5
8	AH	30	46	M4	10
8	AJ	30	46	3.5	10
8	AK	34	48	M3	10
8	AL	30	48	M3	5
8	AM	22	43.82	3.5	5
8	AN	40	50	M4	5
8	AQ	37.6	48	M3	5
8	BA	38.1	66.68	M4	5
8	BB	38.1	66.68	M5	5
8	BC	50	60	M4	10
8	BD	50	70	M4	5
8	BE	50	70	M5	5
8	BF	50	70	M5	10
8	BG	36	70.71	M4	5
8	BH	54	70	M4	5
8	BJ	50	58	M3	5
8	CA	50	80	M4	10

Input Bore (mm)	Part# Code	Pilot (mm)	BCD (mm)	Tapped Hole	Pilot Depth (mm)
S8	ZA	20.02	46.69	M3	5
S8	ZB	22	43.82	4.7	10
S8	ZC	22	48	M3	5
S8	ZD	22.22	50.8	M3	5
S8	ZE	25.4	38.89	4	10
S8	ZF	30	45	M3	5
S8	ZG	30	46	M4	5
S8	ZH	30	46	M4	10
S8	ZJ	30	46	3.5	10
S8	ZK	34	48	M3	10
S8	ZL	30	48	M3	5
S8	ZM	22	43.82	3.5	5
S8	ZN	40	50	M4	5
S8	ZQ	37.6	48	M3	5
S8	BA	38.1	66.68	M4	5
S8	BB	38.1	66.68	M5	5
S8	BC	50	60	M4	10
S8	BD	50	70	M4	5
S8	BE	50	70	M5	5
S8	BF	50	70	M5	10
S8	BG	36	70.71	M4	5
S8	BH	54	70	M4	5
S8	BJ	50	58	M3	5

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