Eriksen - VRB Series High-Precision Planetary Gear Reducer, Small Harmonic Servo Reducer For Robots

Product Description

High precision；Low noise

Backlash: 0.05° (3 points)

Helical gear

Roller bearing

Sleeve type

Simplified connection and easy installation

Low noise experience

Helical gear；Tight meshing；Ultra-quiet power

Helical gear

High precision, low backlash 0.05°

High rigidity

Roller bearing；Enclosed structure；Long service life

Product Details

Pursuit of high precision

Precision grinding process, accurate positioning

Internal gear ring B Internal gear ring A

Planetary gear B Planetary gear A M-axis

Output shaft Sun gear Input gear Drive shaft

Premium materials

Compact and sturdy, wear-resistant and durable

Exquisite output shaft

Transmits torque, powerful performance

Enclosed bearing

No need to replace grease within the product's 20,000-hour

service life, making it more worry-free to use

Input shaft

High load capacity, smooth operation

Model Number

VR

B

－

090

C

－

7

－

K

3

19HB16

Model name for ABLE gearbox

Series name

Frame size

Version

Ratio

Output style

Backlash

Mount code（※1）

042、060、090、115、140、180、220

Single： 3、4、5、6、7、8、9、10

K：Shaft with key

3arc-min（※2）

Double：15、16、20、25、28、30、35、40 45、50、60、70、80、90、100

S：Smooth shaft

※1 Mount code

Mount code varies depending on the motor.

Please refer to gearbox selection tool or contact usfor more information

※2 Only for frame size 042 of double reduction,5 arc-min.

※3 The directin of rotation at the output is thesame

as the direction of rotation at the input.

〔Mounting style to the motor〕

·Motor output shaft is the smooth shaft without

keyway.

·If the motor output shaft is with the keyway,remove

the key from the shaft.

·If the motor output shaft has D shape cut,contact us.

Features

Compact

Maunting dimensions of 42mm

World smallest class gearboxes are ready

Quiet

Using a helical gear provides smooth and quiet operation

High precision

Backlash:less than 3 arc-mins for single reduction and less than 5 arc-mins for double reduction

Accurate position is possible.

High rigidity & torque

High rigidity &high torque were achived by uncaged needle roller bearings.

Adapter-bushing connection

Can be attached to any motor all over the world.

No grease leakage

Perfect solution using high viscosity anti-separationgrease.

Maintenance-free

No need to replace the grease for the life of the unit.Can be attached in any position.

Product parameters

VRB-042C

Frame size	Stage	Ratio	Nominal output torque	Maximum output torque	Emergency stop torque	Nominal input speed	Maximum input speed	Permitted radial load	Permitted axial load
Frame size	Stage	Ratio	[Nm]	[Nm]	[Nm]	[rpm]	[rpm]	[N]	[N]
042C	Single	3	6	12	30	4000	8000	240	270
		4	9	18	35	4000	8000	270	300
		5	9	18	35	4000	8000	290	330
		6	9	18	35	4000	8000	310	360
		7	9	18	35	4000	8000	320	380
		8	9	18	35	4000	8000	340	410
		9	6	12	30	4000	8000	350	430
		10	6	12	30	4000	8000	360	450
	Double	15	6	12	30	4000	8000	410	540
		16	9	18	35	4000	8000	420	550
		20	9	18	35	4000	8000	460	610
		25	9	18	35	4000	8000	490	640
		28	9	18	35	4000	8000	510	640
		30	6	12	30	4000	8000	520	640
		35	9	18	35	4000	8000	550	640
		40	9	18	35	4000	8000	570	640
		45	6	12	30	4000	8000	600	640
		50	9	18	35	4000	8000	620	640
		60	9	18	35	4000	8000	660	640
		70	9	18	35	4000	8000	690	640
		80	9	18	35	4000	8000	710	640
		90	6	12	30	4000	8000	710	640
		100	6	12	30	4000	8000	710	640

Frame size	Stage	Ratio	Maximum radial load	Maximum axial load	Mass	Moment of inertia (≤φ8)	Moment of inertia (≤φ14)
Frame size	Stage	Ratio	[N]	[N]	[kg]	[kgcm2]	[kgcm2]
042C	Single	3	710	640	0.6	0.053	0.17
		4	710	640		0.041	0.16
		5	710	640		0.036	0.15
		6	710	640		0.034	0.15
		7	710	640		0.032	0.15
		8	710	640		0.031	0.15
		9	710	640		0.031	0.15
		10	710	640		0.03	0.15
	Double	15	710	640	0.7	0.035	–
		16	710	640		0.038	–
		20	710	640		0.034	–
		25	710	640		0.034	–
		28	710	640		0.038	–
		30	710	640		0.03	–
		35	710	640		0.034	–
		40	710	640		0.03	–
		45	710	640		0.034	–
		50	710	640		0.03	–
		60	710	640		0.03	–
		70	710	640		0.03	–
		80	710	640		0.03	–
		90	710	640		0.03	–
		100	710	640		0.03	–

VRB-042C　1stage

VRB-042C　　2stage

※1　Length will vary depending on motor.

※2　Bushing will be inserted to adapt to motor shaft.

※3　Output shaft key, keyway dimensions and tolerances conform to JIS B 1301-1996 (tightening type)

【Keyway width tolerance：P9 / key width tolerance：h9】

VRB-060C

Frame size	Stage	Ratio	Nominal output torque	Maximum output torque	Emergency stop torque	Nominal input speed	Maximum input speed	Permitted radial load	Permitted axial load
Frame size	Stage	Ratio	[Nm]	[Nm]	[Nm]	[rpm]	[rpm]	[N]	[N]
060C	Single	3	18	35	80	3000	6000	430	310
		4	27	50	100	3000	6000	470	360
		5	27	50	100	3000	6000	510	390
		6	27	50	100	3000	6000	540	430
		7	27	50	100	3000	6000	570	460
		8	27	50	100	3000	6000	600	480
		9	18	35	80	3000	6000	620	510
		10	18	35	80	3000	6000	640	530
	Double	15	18	35	80	3000	6000	740	630
		16	27	50	100	3000	6000	750	650
		20	27	50	100	3000	6000	810	720
		25	27	50	100	3000	6000	870	790
		28	27	50	100	3000	6000	910	830
		30	18	35	80	3000	6000	930	860
		35	27	50	100	3000	6000	980	920
		40	27	50	100	3000	6000	1000	970
		45	18	35	80	3000	6000	1100	1000
		50	27	50	100	3000	6000	1100	1100
		60	27	50	100	3000	6000	1200	1100
		70	27	50	100	3000	6000	1200	1100
		80	27	50	100	3000	6000	1200	1100
		90	18	35	80	3000	6000	1200	1100
		100	18	35	80	3000	6000	1200	1100

Frame size	Stage	Ratio	Maximum radial load	Maximum axial load	Mass	Moment of inertia (≤φ8)	Moment of inertia (≤φ14)	Moment of inertia (≤φ19)
Frame size	Stage	Ratio	[N]	[N]	[kg]	[kgcm2]	[kgcm2]	[kgcm2]
060C	Single	3	1200	1100	1.4	0.14	0.25	0.53
		4	1200	1100		0.095	0.21	0.48
		5	1200	1100		0.077	0.19	0.46
		6	1200	1100		0.068	0.18	0.46
		7	1200	1100		0.062	0.17	0.45
		8	1200	1100		0.059	0.17	0.45
		9	1200	1100		0.057	0.17	0.44
		10	1200	1100		0.056	0.17	0.44
	Double	15	1200	1100	1.6	0.064	0.18	–
		16	1200	1100		0.07	0.18	–
		20	1200	1100		0.062	0.17	–
		25	1200	1100		0.061	0.17	–
		28	1200	1100		0.068	0.18	–
		30	1200	1100		0.051	0.16	–
		35	1200	1100		0.061	0.17	–
		40	1200	1100		0.051	0.16	–
		45	1200	1100		0.061	0.17	–
		50	1200	1100		0.051	0.16	–
		60	1200	1100		0.051	0.16	–
		70	1200	1100		0.051	0.16	–
		80	1200	1100		0.051	0.16	–
		90	1200	1100		0.051	0.16	–
		100	1200	1100		0.051	0.16	–

VRB-060C　　1stage

VRB-060C　　2stage

　Input shaft bore　≦φ8

　Input shaft bore　≦φ14

　Input shaft bore　≦φ19

※1　Length will vary depending on motor

※2　Bushing will be inserted to adapt to motor shaft.

※3　Output shaft key, keyway dimensions and tolerances conform to JIS B 1301-1996 (tightening type)

【Keyway width tolerance：P9 / key width tolerance：h9】

VRB-090C

Frame size	Stage	Ratio	Nominal output torque	Maximum output torque	Emergency stop torque	Nominal input speed	Maximum input speed	Permitted radial load	Permitted axial load
Frame size	Stage	Ratio	[Nm]	[Nm]	[Nm]	[rpm]	[rpm]	[N]	[N]
090C	Single	3	50	80	200	3000	6000	810	930
		4	75	125	250	3000	6000	890	1100
		5	75	125	250	3000	6000	960	1200
		6	75	125	250	3000	6000	1000	1300
		7	75	125	250	3000	6000	1100	1300
		8	75	125	250	3000	6000	1100	1400
		9	50	80	200	3000	6000	1200	1500
		10	50	80	200	3000	6000	1200	1600
	Double	15	50	80	200	3000	6000	1400	1900
		16	75	125	250	3000	6000	1400	1900
		20	75	125	250	3000	6000	1500	2100
		25	75	125	250	3000	6000	1600	2200
		28	75	125	250	3000	6000	1700	2200
		30	50	80	200	3000	6000	1700	2200
		35	75	125	250	3000	6000	1800	2200
		40	75	125	250	3000	6000	1900	2200
		45	50	80	200	3000	6000	2000	2200
		50	75	125	250	3000	6000	2100	2200
		60	75	125	250	3000	6000	2200	2200
		70	75	125	250	3000	6000	2300	2200
		80	75	125	250	3000	6000	2400	2200
		90	50	80	200	3000	6000	2400	2200
		100	50	80	200	3000	6000	2400	2200

Frame size	Stage	Ratio	Maximum radial load	Maximum axial load	Mass	Moment of inertia (≤φ8)	Moment of inertia (≤φ14)	Moment of inertia (≤φ19)	Moment of inertia (≤φ28)
Frame size	Stage	Ratio	[N]	[N]	[kg]	[kgcm2]	[kgcm2]	[kgcm2]	[kgcm2]
090C	Single	3	2400	2200	3.7	–	0.72	1.1	2.9
		4	2400	2200		–	0.5	0.9	2.7
		5	2400	2200		–	0.41	0.8	2.6
		6	2400	2200		–	0.36	0.75	2.5
		7	2400	2200		–	0.33	0.73	2.5
		8	2400	2200		–	0.31	0.71	2.5
		9	2400	2200		–	0.3	0.7	2.5
		10	2400	2200		–	0.3	0.7	2.5
	Double	15	2400	2200	4.2	0.20	0.36	0.75	–
		16	2400	2200		0.25	0.41	0.79	–
		20	2400	2200		0.19	0.35	0.74	–
		25	2400	2200		0.19	0.35	0.74	–
		28	2400	2200		0.24	0.4	0.78	–
		30	2400	2200		0.12	0.28	0.67	–
		35	2400	2200		0.18	0.35	0.73	–
		40	2400	2200		0.11	0.28	0.67	–
		45	2400	2200		0.18	0.34	0.73	–
		50	2400	2200		0.11	0.27	0.67	–
		60	2400	2200		0.11	0.27	0.67	–
		70	2400	2200		0.11	0.27	0.67	–
		80	2400	2200		0.11	0.27	0.67	–
		90	2400	2200		0.11	0.27	0.67	–
		100	2400	2200		0.11	0.27	0.67	–

VRB-090C　　1stage

VRB-090C　　2stage

　Input shaft bore　≦φ14

　Input shaft bore　≦φ8

　Input shaft bore　≦φ19

　Input shaft bore　≦φ14

　Input shaft bore　≦φ28

　Input shaft bore　≦φ19

※1　Length will vary depending on motor.

※2　Bushing will be inserted to adapt to motor shaft.

※3　Output shaft key, keyway dimensions and tolerances conform to JIS B 1301-1996 (tightening type)

【Keyway width tolerance：P9 / key width tolerance：h9】

VRB-115C

Frame size	Stage	Ratio	Nominal output torque	Maximum output torque	Emergency stop torque	Nominal input speed	Maximum input speed	Permitted radial load	Permitted axial load
Frame size	Stage	Ratio	[Nm]	[Nm]	[Nm]	[rpm]	[rpm]	[N]	[N]
115C	Single	3	120	225	500	3000	6000	1300	1500
		4	120	330	625	3000	6000	1500	1700
		5	180	330	625	3000	6000	1600	1900
		6	180	330	625	3000	6000	1700	2000
		7	180	330	625	3000	6000	1800	2100
		8	180	330	625	3000	6000	1900	2300
		9	120	225	500	3000	6000	1900	2400
		10	120	225	500	3000	6000	2000	2500
	Double	15	120	225	500	3000	6000	2300	3000
		16	180	330	625	3000	6000	2300	3100
		20	180	330	625	3000	6000	2500	3400
		25	180	330	625	3000	6000	2700	3700
		28	180	330	625	3000	6000	2800	3900
		30	120	225	500	3000	6000	2900	3900
		35	180	330	625	3000	6000	3000	3900
		40	180	330	625	3000	6000	3200	3900
		45	120	225	500	3000	6000	3300	3900
		50	180	330	625	3000	6000	3400	3900
		60	180	330	625	3000	6000	3600	3900
		70	180	330	625	3000	6000	3800	3900
		80	180	330	625	3000	6000	4000	3900
		90	120	225	500	3000	6000	4200	3900
		100	120	225	500	3000	6000	4300	3900

Frame size	Stage	Ratio	Maximum radial load	Maximum axial load	Mass	Moment of inertia (≤Φ14)	Moment of inertia (≤Φ19)	Moment of inertia (≤Φ28)	Moment of inertia (≤Φ38)
Frame size	Stage	Ratio	[N]	[N]	[kg]	[kgcm2]	[kgcm2]	[kgcm2]	[kgcm2]
115C	Single	3	4300	3900	8	–	3.2	5.1	12
		4	4300	3900		–	2	3.7	10
		5	4300	3900		–	1.4	3.1	9.5
		6	4300	3900		–	1.2	2.9	9.3
		7	4300	3900		–	1	2.8	9.1
		8	4300	3900		–	0.9	2.7	9
		9	4300	3900		–	0.86	2.6	8.9
		10	4300	3900		–	0.83	2.6	8.9
	Double	15	4300	3900	8.9	0.77	1.2	2.9	–
		16	4300	3900		0.98	1.4	3.1	–
		20	4300	3900		0.72	1.1	2.8	–
		25	4300	3900		0.7	1.1	2.8	–
		28	4300	3900		0.92	1.3	3	–
		30	4300	3900		0.38	0.78	2.5	–
		35	4300	3900		0.68	1.1	2.8	–
		40	4300	3900		0.37	0.77	2.5	–
		45	4300	3900		0.68	1.1	2.8	–
		50	4300	3900		0.36	0.76	2.5	–
		60	4300	3900		0.36	0.76	2.5	–
		70	4300	3900		0.36	0.76	2.5	–
		80	4300	3900		0.36	0.76	2.5	–
		90	4300	3900		0.36	0.76	2.5	–
		100	4300	3900		0.36	0.76	2.5	–

VRB-115C　　1stage

VRB-115C　　2stage

　Input shaft bore　≦φ19

　Input shaft bore　≦φ14

　Input shaft bore　≦φ28

　Input shaft bore　≦φ19

　Input shaft bore　≦φ38

　Input shaft bore　≦φ28

※1　Length will vary depending on motor.

※2　Bushing will be inserted to adapt to motor shaft.

※3　Output shaft key, keyway dimensions and tolerances conform to JIS B 1301-1996 (tightening type)

【Keyway width tolerance：P9 / key width tolerance：h9】

VRB-140C

Frame size	Stage	Ratio	Nominal output torque	Maximum output torque	Emergency stop torque	Nominal input speed	Maximum input speed	Permitted radial load	Permitted axial load
Frame size	Stage	Ratio	[Nm]	[Nm]	[Nm]	[rpm]	[rpm]	[N]	[N]
140C	Single	3	240	470	1000	2000	4000	3200	2400
		4	240	700	1250	2000	4000	3500	2700
		5	360	700	1250	2000	4000	3800	3000
		6	360	700	1250	2000	4000	4000	3300
		7	360	700	1250	2000	4000	4200	3500
		8	360	700	1250	2000	4000	4400	3700
		9	240	470	1000	2000	4000	4600	3900
		10	240	470	1000	2000	4000	4700	4100
	Double	15	240	470	1000	2000	4000	5400	4900
		16	360	700	1250	2000	4000	5500	5000
		20	360	700	1250	2000	4000	6000	5500
		25	360	700	1250	2000	4000	6400	6100
		28	360	700	1250	2000	4000	6700	6400
		30	240	470	1000	2000	4000	6800	6600
		35	360	700	1250	2000	4000	7200	7000
		40	360	700	1250	2000	4000	7500	7500
		45	240	470	1000	2000	4000	7800	7900
		50	360	700	1250	2000	4000	8100	8200
		60	360	700	1250	2000	4000	8600	8200
		70	360	700	1250	2000	4000	9100	8200
		80	360	700	1250	2000	4000	9100	8200
		90	240	470	1000	2000	4000	9100	8200
		100	240	470	1000	2000	4000	9100	8200

Frame size	Stage	Ratio	Maximum radial load	Maximum axial load	Mass	Moment of inertia (≤φ19)	Moment of inertia (≤φ28)	Moment of inertia (≤φ38)	Moment of inertia (≤φ48)
Frame size	Stage	Ratio	[N]	[N]	[kg]	[kgcm2]	[kgcm2]	[kgcm2]	[kgcm2]
140C	Single	3	9100	8200	16	–	12	18	35
		4	9100	8200		–	7.3	14	29
		5	9100	8200		–	5.3	12	27
		6	9100	8200		–	4.3	11	26
		7	9100	8200		–	3.9	10	25
		8	9100	8200		–	3.5	9.9	25
		9	9100	8200		–	3.3	9.7	25
		10	9100	8200		–	3.2	9.6	25
	Double	15	9100	8200	17	2.6	4.4	11	–
		16	9100	8200		3.5	5.3	12	–
		20	9100	8200		2.4	4.2	10	–
		25	9100	8200		2.4	4.1	10	–
		28	9100	8200		3.3	5.1	11	–
		30	9100	8200		1.1	2.9	9.2	–
		35	9100	8200		2.3	4.1	10	–
		40	9100	8200		1.1	2.8	9.1	–
		45	9100	8200		2.3	4	10	–
		50	9100	8200		1.1	2.8	9.1	–
		60	9100	8200		1.1	2.8	9.1	–
		70	9100	8200		1.1	2.8	9.1	–
		80	9100	8200		1.1	2.8	9.1	–
		90	9100	8200		1.1	2.8	9.1	–
		100	9100	8200		1.1	2.8	9.1	–

VRB-140C　　1stage

VRB-140C　　2stage

　Input shaft bore　≦φ28

Input shaft bore　≦φ19

　Input shaft bore　≦φ38

Input shaft bore　≦φ28

　Input shaft bore　≦φ48

Input shaft bore　≦φ38

※1　Length will vary depending on motor.

※2　Bushing will be inserted to adapt to motor shaft.

※3　Output shaft key, keyway dimensions and tolerances conform to JIS B 1301-1996 (tightening type)

【Keyway width tolerance：P9 / key width tolerance：h9】

VRB-180C

Frame size	Stage	Ratio	Nominal output torque	Maximum output torque	Emergency stop torque	Nominal input speed	Maximum input speed	Permitted radial load	Permitted axial load
Frame size	Stage	Ratio	[Nm]	[Nm]	[Nm]	[rpm]	[rpm]	[N]	[N]
180C	Single	3	500	970	2200	1500	3000	5600	4300
		4	750	1400	2750	1500	3000	6200	4900
		5	750	1400	2750	1500	3000	6700	5400
		6	750	1400	2750	1500	3000	7100	5800
		7	750	1400	2750	1500	3000	7400	6300
		8	750	1400	2750	1500	3000	7800	6600
		9	500	970	2200	1500	3000	8100	7000
		10	500	970	2200	1500	3000	8400	7300
	Double	15	500	970	2200	1500	3000	9600	8700
		16	750	1400	2750	1500	3000	9800	8900
		20	750	1400	2750	1500	3000	11000	9900
		25	750	1400	2750	1500	3000	11000	11000
		28	750	1400	2750	1500	3000	12000	11000
		30	500	970	2200	1500	3000	12000	12000
		35	750	1400	2750	1500	3000	13000	13000
		40	750	1400	2750	1500	3000	13000	13000
		45	500	970	2200	1500	3000	14000	14000
		50	750	1400	2750	1500	3000	14000	14000
		60	750	1400	2750	1500	3000	15000	14000
		70	750	1400	2750	1500	3000	15000	14000
		80	750	1400	2750	1500	3000	15000	14000
		90	500	970	2200	1500	3000	15000	14000
		100	500	970	2200	1500	3000	15000	14000

Frame size	Stage	Ratio	Maximum radial load	Maximum axial load	Mass	Moment of inertia (≤φ28)	Moment of inertia (≤φ38)	Moment of inertia (≤φ48)	Moment of inertia (≤φ65)
Frame size	Stage	Ratio	[N]	[N]	[kg]	[kg]	[kgcm2]	[kgcm2]	[kgcm2]
180C	Single	3	15000	14000	36	–	43	57	110
		4	15000	14000		–	26	41	85
		5	15000	14000		–	19	34	78
		6	15000	14000		–	15	31	75
		7	15000	14000		–	14	29	73
		8	15000	14000		–	13	28	72
		9	15000	14000		–	12	27	71
		10	15000	14000		–	12	27	71
	Double	15	15000	14000	37	8.8	15	30	–
		16	15000	14000		11	18	33	–
		20	15000	14000		8.1	14	29	–
		25	15000	14000		7.9	14	29	–
		28	15000	14000		11	17	32	–
		30	15000	14000		4	10	25	–
		35	15000	14000		7.6	14	29	–
		40	15000	14000		3.9	10	25	–
		45	15000	14000		7.6	14	29	–
		50	15000	14000		3.8	10	25	–
		60	15000	14000		3.8	10	25	–
		70	15000	14000		3.8	10	25	–
		80	15000	14000		3.7	10	25	–
		90	15000	14000		3.7	10	25	–
		100	15000	14000		3.7	10	25	–

VRB-180C　　1stage

VRB-180C　　2stage

　Input shaft bore　≦φ38

Input shaft bore　≦φ28

　Input shaft bore　≦φ48

Input shaft bore　≦φ38

　Input shaft bore　≦φ65

Input shaft bore　≦φ48

※1　Length will vary depending on motor.

※2　Bushing will be inserted to adapt to motor shaft.

※3　Output shaft key, keyway dimensions and tolerances conform to JIS B 1301-1996 (tightening type)

【Keyway width tolerance：P9 / key width tolerance：h9】

VRB-220C

Frame size	Stage	Ratio	Nominal output torque	Maximum output torque	Emergency stop torque	Nominal input speed	Maximum input speed	Permitted radial load	Permitted axial load
Frame size	Stage	Ratio	[Nm]	[Nm]	[Nm]	[rpm]	[rpm]	[N]	[N]
220C	Single	3	1000	1600	4000	1000	2000	5800	6400
		4	1500	2300	5000	1000	2000	6400	7200
		5	1500	2300	5000	1000	2000	6900	7900
		6	1500	2300	5000	1000	2000	7300	8600
		7	1500	2300	5000	1000	2000	7700	9200
		8	1500	2200	5000	1000	2000	8000	9700
		9	1000	1900	4000	1000	2000	8400	10000
		10	1000	1600	4000	1000	2000	8700	11000
	Double	15	1000	1600	4000	1000	2000	9900	13000
		16	1500	2300	5000	1000	2000	10000	13000
		20	1500	2300	5000	1000	2000	11000	14000
		25	1500	2300	5000	1000	2000	12000	14000
		28	1500	2300	5000	1000	2000	12000	14000
		30	1000	1600	4000	1000	2000	13000	14000
		35	1500	2300	5000	1000	2000	13000	14000
		40	1500	2300	5000	1000	2000	14000	14000
		45	1000	1300	4000	1000	2000	14000	14000
		50	1500	2300	5000	1000	2000	15000	14000
		60	1500	2300	5000	1000	2000	15000	14000
		70	1500	2300	5000	1000	2000	15000	14000
		80	1500	1800	5000	1000	2000	15000	14000
		90	1000	1300	4000	1000	2000	15000	14000
		100	1000	1200	4000	1000	2000	15000	14000

Frame size	Stage	Ratio	Maximum radial load	Maximum axial load	Mass	Moment of inertia (≤Φ38)	Moment of inertia (≤Φ48)	Moment of inertia (≤Φ65)
Frame size	Stage	Ratio	[N]	[N]	[kg]	[kgcm2]	[kgcm2]	[kgcm2]
220C	Single	3	15000	14000	53	–	110	160
		4	15000	14000		–	54	98
		5	15000	14000		–	42	85
		6	15000	14000		–	35	79
		7	15000	14000		–	33	76
		8	15000	14000		–	30	74
		9	15000	14000		–	29	73
		10	15000	14000		–	28	72
	Double	15	15000	14000	54	20	34	–
		16	15000	14000		24	39	–
		20	15000	14000		19	33	–
		25	15000	14000		18	33	–
		28	15000	14000		23	37	–
		30	15000	14000		12	26	–
		35	15000	14000		18	32	–
		40	15000	14000		12	26	–
		45	15000	14000		18	32	–
		50	15000	14000		12	26	–
		60	15000	14000		11	26	–
		70	15000	14000		11	26	–
		80	15000	14000		11	26	–
		90	15000	14000		11	26	–
		100	15000	14000		11	26	–

VRB-220C　　1stage

VRB-220C　　2stage

　Input shaft bore　≦φ48

Input shaft bore　≦φ38

　Input shaft bore　≦φ65

　Input shaft bore　≦φ48

※1　Length will vary depending on motor.

※2　Bushing will be inserted to adapt to motor shaft.

※3　Output shaft key, keyway dimensions and tolerances conform to JIS B 1301-1996 (tightening type)

【Keyway width tolerance：P9 / key width tolerance：h9】

Model	Ratio	Permissible Output Torque	Permissible Maximum Torque	Permissible Average Input Speed	Maximum Permissible Input Speed	Weight
WPU-42-80-CN-8BK	80	26Nm	50Nm	3000r/min	7300r/min	0.68kg
WPU-50-50-SNH	50	33Nm	73Nm	3000r/min	6500r/min	1.1kg
WPS-50-50-SN-LE-14K	50	33Nm	73Nm	3000r/min	6500r/min	0.79kg
WPU-63-80-SNH	80	66Nm	142Nm	3000r/min	5600r/min	1.7kg
WPU-63-80-CN-14BK	80	66Nm	142Nm	3000r/min	5600r/min	1.5kg
WPU-80-80-SNH	80	122Nm	316Nm	3000r/min	4800r/min	3.4kg
WPU-80-50-CN-19K	50	89Nm	253Nm	3000r/min	4800r/min	3.3kg

Characteristic

Frame size	Stage	Backlash	Torsional rigidity	Ambient temperature	Permitted housing temperature
Frame size	Stage	[arc-min]	[Nm/arc-min]	[℃ ]	[℃ ]
VRB-042C	Single	3	2	0-40	90
VRB-042C	Double	5	2
VRB-060C	Single	3	3
VRB-060C	Double	3	3
VRB-090C	Single	3	10
VRB-090C	Double	3	10
VRB-115C	Single	3	31
VRB-115C	Double	3	31
VRB-140C	Single	3	60
VRB-140C	Double	3	60
VRB-180C	Single	3	175
VRB-180C	Double	3	175
VRB-220C	Single	3	400
VRB-220C	Double	3	400

※ 1 Output shaft twisting angle when a small forward/reverse torque is applied to the output shaft with the input shaft fixed.

※ 2 Torque - twist angle of the straight line diagram (stiffness) part .

※ 3 The maximum temperature a reduction gear can withstand .

For continuous operation, it is necessary to prepare the forced cooling because it may exceed the allowable temperature depending on the size of the load.

Precautions on selection

※When using in very low speed, lack of lubrication may happen.

Contact us when using at lower than 1 rpm at output.

※When using in small radian movement, it can influence the oil filmforming of the power transmission part.

Contact us when the gearbox is used at less than 120 degree radian.

※Rapid clockwise/counter-clockwise movements may wear out the key of the output shaft.

Locking assembly is recommended to avoid the worn out.

※If the motor's flange dimensions are smaller than the gearbox adapter's □ dimensions (refer to VRB: P137-P143), the adapter's counterbore holes may not be completely covered after the motor is installed.

※If the mass ratio of the motor to the gearbox (Motor/Gearbox) is 2 or higher, or if the dimensional ratio (LM/LS) is 3 or higher, vibration may occur on the motor side depending on the operating conditions.

Please implement reinforcement or other necessary measures.

※If the ratios of the mass (motor/gearbox) and the length (LM/LS) are both over 0.8, it can create certain vibration so make sure to renforce the equipment.

・ VRB-140C　input bote ≦φ19　Double reduction

・ VRB-180C　input bore ≦φ28　Double reduction

・ VRB-220C　input bore ≦φ38　Double reduction

VRB Series Models
VRB-042-10-K3-S8ZF8	VRB-090-3-K3-28HB22	VRB-180-15-K3-38KA35
VRB-140C-60-K3-28HA24	VRB-090C-6-K3-28FB24	VRB-140C-10-K3-38KA35
VRB-140C-5-K3-38KA35	VRB-115-10-K3-28HF22	VRB-060C-15-K3-14BJ11
VRB-180-15-K3-38KA35	VRB-090C-5-K3-19HB19	VRB-140C-60-K3-28HA24
VRB-115C-10-K3-28HB22	VRB-140C-60-K3-28HA24	VRBZ-140-40-476-K3-22
VRB-115-10-K3-28GD24	VRB-140-15-K3-38KA35	VRBZ-060-30-278-14BK14
VRB-090C-3-K3-19DD19	VRB-115C-10-K3-28GD24	VRB-140C-15-K3-38KA35

VRS Series Models
VRSF-5C-K-750-GCII(T3)	VRSF-5C-1000-LNS	VRSF-10B-400-RV
VRSF-10C-750-LNS	VRSF-3C-750-T.M	VRSF-3B-400-RV
VRSF-9D-K-750-GCII	VRSF-IOB-400-RV	VRSF-3C-750-LM
VRSF-5B-LM	VRSF-10C-1300-RF	VRSF-7C-750(M6)
VRSF-5C-K-750-GCII	VRSF-40C-750-HJ	VRSF-9C-K-400-GCII
VRSF-5D-28FC22	VRSF-7C-400	VRSF-7C-750(M6)
VRSFS-40C-750-SD-T1	VRSF-5C-750-LMS	VRSF-10C-1300-RF

Other Models
VRTZ-110L-7-F3-002-35	VRT-140C-20-F3-38KA35	VRT-090C-5-F3-28GD24
VRT-090C-5-F3-19HB19	VRT-090C-5-F3-19HB19	VRT-090L-5-F3-28HB22
VRT-090C-7-F3-28HB22	VRTZ-090L-7-F3-002-28(22)	VRT-110C-20-F3-28HB22
VRT-090-5-F3-28HB22	VRT-200C-7-F3-38KA35	VRT-090-7-F3-28HB22
VRL-090B-15-K5-19DC19	VRL-090B-15-K5-19DC19	VRL-235C-60-K5-48KA42
VRL-235B-60-K5-48KA42	VRL-090C-9-K5-28FC22	VRL-155B-10-K5-48KA42
EVS-060B-4-K4-14BE9	EVT-140B-5-F4-38KA35	EVB-115-9-K4-28HA28

Note: The above only lists some of the models. For more models, please contact the customer service.

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TransRex Drive

VRB Series High-Precision Planetary Gear Reducer, Small Harmonic Servo Reducer For Robots

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