VRL 235 Frame

The VRL Series is the all-rounder in the planetary gear reducer marketplace. With helical gearing, robust internal construction, smooth operation and high torque density, the VRL is truly best-in-class. 5 arc-min backlash allows the VRL to be applied to a wide range of applications where accuracy and dynamics are in play, but cost is of concern.

Downloads

Selection Configurator

VRL 235 Series Catalog

Installation Manual

Technical Data

VRL 235 Frame Size, 1 Stage Specifications

Ratio	Units	Note	3	4	5	6	7	8	9	10
Nominal Output Torque	[Nm]	*1	980	1400	1400	1600	1700	1700	1700	1700
Maximum Acceleration Torque	[Nm]	*2	2000	2900	2900	2900	2900	2900	2600	2200
Maximum Torque	[Nm]	*3	2400	3700	3700	3500	3500	3400	3000	2700
Emergency Stop Torque	[Nm]	*4	4000	5000	5000	5000	5000	5000	4000	4000
Nominal Input Speed	[rpm]	*5	1200	1200	1500	1500	1700	1700	2000	2000
Maximum Input Speed	[rpm]	*6	3000	3000	3000	3000	3000	3000	3000	3000
No Load Running Torque	[Nm]	*7	2.92	2.92	2.92	2.92	2.92	2.92	2.92	2.92
Maximum Radial Load	[N]	*8	15000	15000	15000	15000	15000	15000	15000	15000
Maximum Axial Load	[N]	*9	14000	14000	14000	14000	14000	14000	14000	14000
Moment of Inertia (≤Ø 19)	[kgcm2]	–	–	–	–	–	–	–	–	–
Moment of Inertia (≤ Ø 28)	[kgcm2]	–	–	–	–	–	–	–	–	–
Moment of Inertia (≤ Ø 38)	[kgcm2]	–	110	54	42	35	33	30	29	28
Moment of Inertia (≤ Ø 65)	[kgcm2]	–	160	98	85	79	76	74	73	72
Efficiency	[%]	*10	95	85	95	95	95	95	95	95
Torsional Rigidity	[Nm/arc-min]	*11	400	400	400	400	400	400	400	400
Maximum Torsional Backlash	[arc-min]	–	≤ 5	≤ 5	≤ 5	≤ 5	≤ 5	≤ 5	≤ 5	≤ 5
Noise Level	dB [A]	*12	≤ 61	≤ 61	≤ 61	≤ 61	≤ 61	≤ 61	≤ 61	≤ 61
Protection Class	–	*13	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)
Ambient Temperature	[°C]	–	0-40	0-40	0-40	0-40	0-40	0-40	0-40	0-40
Permitted Housing Temperature	[°C]	–	90	90	90	90	90	90	90	90
Weight	[kg]	*14	55	55	55	55	55	55	55	55

VRL 235 Frame Size, 2 Stage Specifications

Ratio	Units	Note	15	16	20	25	28	30	35	40
Nominal Output Torque	[Nm]	* 1	1100	1400	1500	1800	2000	1300	2000	2000
Maximum Acceleration Torque	[Nm]	*2	2000	2900	2900	2900	2900	2000	2900	2900
Maximum Torque	[Nm]	*3	2000	2900	2900	2900	2900	2000	2900	2900
Emergency Stop Torque	[Nm]	*4	4000	5000	5000	5000	5000	4000	5000	5000
Nominal Input Speed	[rpm]	*5	2200	2200	2200	2200	2200	2200	2200	2200
Maximum Input Speed	[rpm]	*6	4500	4500	4500	4500	4500	4500	4500	4500
No Load Running Torque	[Nm]	*7	1.14	1.14	1.14	1.14	1.14	1.14	1.14	1.14
Maximum Radial Load	[N]	*8	15000	15000	15000	15000	15000	15000	15000	15000
Maximum Axial Load	[N]	*9	14000	14000	14000	14000	14000	14000	14000	14000
Moment of Inertia (≤Ø 28)	[kgcm2]	–	–	–	–	–	–	–	–	–
Moment of Inertia (≤ Ø 38)	[kgcm2]	–	20	24	19	18	23	12	18	12
Moment of Inertia (≤ Ø 48)	[kgcm2]	–	34	39	33	33	37	26	32	26
Moment of Inertia (≤ Ø 65)	[kgcm2]	–	–	–	–	–	–	–	–	–
Efficiency	[%]	*10	90	90	90	90	90	90	90	90
Torsional Rigidity	[Nm/arc-min]	*11	400	400	400	400	400	400	400	400
Maximum Torsional Backlash	[arc-min]	–	≤ 5	≤ 5	≤ 5	≤ 5	≤ 5	≤ 5	≤ 5	≤ 5
Noise Level	dB [A]	*12	≤ 61	≤ 61	≤ 61	≤ 61	≤ 61	≤ 61	≤ 61	≤ 61
Protection Class	–	*13	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)
Ambient Temperature	[°C]	–	0-40	0-40	0-40	0-40	0-40	0-40	0-40	0-40
Permitted Housing Temperature	[°C]	–	90	90	90	90	90	90	90	90
Weight	[kg]	*14	57	57	57	57	57	57	57	57

Ratio	Units	Note	45	50	60	70	80	90	100
Nominal Output Torque	[Nm]	* 1	930	1300	1300	1300	1300	930	930
Maximum Acceleration Torque	[Nm]	*2	1350	1850	1850	1850	1850	1350	1350
Maximum Torque	[Nm]	*3	1350	1850	1850	1850	1850	1350	1350
Emergency Stop Torque	[Nm]	*4	2200	2750	2750	2750	2750	2200	2200
Nominal Input Speed	[rpm]	*5	2700	2900	2900	3400	3400	3400	3400
Maximum Input Speed	[rpm]	*6	5000	5000	5000	5000	5000	5000	5000
No Load Running Torque	[Nm]	*7	1.39	1.39	1.39	1.39	1.39	1.39	1.39
Maximum Radial Load	[N]	*8	15000	15000	15000	15000	15000	15000	15000
Maximum Axial Load	[N]	*9	14000	14000	14000	14000	14000	14000	14000
Moment of Inertia (≤Ø 28)	[kgcm2]	–	–	4.7	4.7	4.6	4.6	4.6	4.6
Moment of Inertia (≤ Ø 38)	[kgcm2]	–	18	12	11	11	11	11	11
Moment of Inertia (≤ Ø 48)	[kgcm2]	–	32	26	26	26	26	26	26
Moment of Inertia (≤ Ø 65)	[kgcm2]	–	–	–	–	–	–	–	–
Efficiency	[%]	*10	90	90	90	90	90	90	90
Torsional Rigidity	[Nm/arc-min]	*11	400	400	400	400	400	400	400
Maximum Torsional Backlash	[arc-min]	–	≤ 5	≤ 5	≤ 5	≤ 5	≤ 5	≤ 5	≤ 5
Noise Level	dB [A]	*12	≤ 61	≤ 61	≤ 61	≤ 61	≤ 61	≤ 61	≤ 61
Protection Class	–	*13	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)	IP54 (IP65)
Ambient Temperature	[°C]	–	0-40	0-40	0-40	0-40	0-40	0-40	0-40
Permitted Housing Temperature	[°C]	–	90	90	90	90	90	90	90
Weight	[kg]	*14	57	57	57	57	57	57	57

At nominal input speed, service life is 20,000 hours
The maximum torque when starting or stopping operation. Apply Cycle Factor f₀ on Selection Flow Charts, for higher duty cycle applications
Permitted 10,000 times during service life. Based on 10% of maximum radial load and smooth output shaft
The maximum torque allowed under a stress situation. Permitted 1,000 times during service life
The average input speed at nominal input 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 rating
This does not include lost motion
Contact Nidec Drive Technology Corporation for the testing conditions and environment
IP65 (wash-down) is available as an option. Contact Nidec Drive Technology Corporation for more details
Weight may vary slightly between models

VRL 235 1 Stage Dimensions

VRL 235 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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