WVRB Series

The planet gear carrier and output end adopt an integrated double-supported structure design to ensure maximum torsional rigidity,toughness,and rotational accuracy.
The planet gear adopts a full needle roller design to increase the contact area and improve the structural rigidity and output torque.
The gear uses low carbon steel carburized and quenched to achieve a surface hardness of HRC62 to obtain the best wear resistance and impact toughness.
The gear profile is designed with assistance from imported software to obtain the best possible design,thereby reducing noise.
The connection between the input end and the motor shaft adopts a double-sided clamping method to achieve maximum clamping force and zero backlash power transmission.

Product Features

Integrated output shaft

Ensures maximum torsional rigidity
Full needle roller design

Enhances structural rigidity and output torque
High Rigidity

Gears are made of low-carbon steel with surface carburizing and quenching for optimal wear resistance and impact toughness.
High Precision

Minimum backlash can be less than 1.5 arcmin
High Transmission Efficiency

Compact Structure

Performance Parameter

Specification	Unit	Stage	Ratio	WVRB042	WVRB060	WVRB090	WVRB115	WVRB140	WVRB180	WVRB220
Rated output torqueT2N	Nm	1	3	19	50	130	208	342	588	1140
			4	20	55	140	290	542	1050	1700
			5	22	60	160	330	650	1200	2000
			6	20	55	150	310	600	1100	1900
			7	15	50	140	300	550	1000	1700
			8	12	40	100	230	450	850	1450
			10	10	35	90	200	400	760	1350
		2	15	19	50	130	208	342	588	1140
			20	20	55	140	290	542	1050	1700
			25	22	60	160	330	650	1200	2000
			30	20	55	150	310	600	1100	1900
			35	15	50	140	300	550	1000	1700
			40	20	55	140	290	542	1050	1700
			50	22	60	160	330	650	1200	2000
			60	20	55	150	310	600	1100	1900
			70	15	50	140	300	550	1000	1700
			80	12	40	100	230	450	850	1450
			100	10	35	90	200	400	760	1350
Emergency stop torque T2NOT	Nm	1,2	3~100	Triple rated output torque
Rated input speed n1N		1,2	3~100	5000	5000	4000	4000	3000	3000	2000
Maximum input speed n1B	rpm	1,2	3~100	10000	10000	8000	8000	6000	6000	4000
Super precision backlash P0	arcmin	1	3~10	-	≤1.5	≤1.5	≤1.5	≤1.5	≤1.5	≤1.5
Super precision backlash P0	arcmin	2	15~100	-	≤3	≤3	≤3	≤3	≤3	≤3
Precision backlash P1	arcmin	1	3~10	-	≤3	≤3	≤3	≤3	≤3	≤3
Precision backlash P1	arcmin	2	15~100	-	≤5	≤5	≤5	≤5	≤5	≤5
Standard backlash P2	arcmin	1	3~10	≤12	≤5	≤5	≤5	≤5	≤5	≤5
Standard backlash P2		2	15~100	≤16	≤8	≤8	≤8	≤8	≤8	≤8
Torsional rigidity	Nm/arcmin	1,2	3~100	3	7	14	25	50	145	225
Maximum bending torque M2KB	N	1,2	3~100	780	1530	3250	6700	9400	14500	20000
Allowable axial force F2aB	N	1,2	3~100	390	765	1625	3350	4700	7250	10000
Lifespan	hr	1,2	3~100	20000
Efficiency	%	1	3~10	≥97%
Efficiency	%	2	15~100	≥94%
Weight	kg	1	3~10	0.6	1.5	3.7	7.8	16	36	53
Weight	kg	2	15~100	0.7	1.6	4.2	11	17	37	54
Working temperature	℃	1,2	3~100	-20℃-+40℃
Lubricating		1,2	Synthetic lubricating grease
IP Grade		1,2	3~100	IP65
Installation direction		1,2	3~100	In any direction
Noise level(n1=3000rpm,off load)	dB(A)	1,2	3~100	≤56	≤58	≤60	≤63	≤65	≤67	≤70

Performance Parameter

Specification	Unit	Stage	Ratio	WVRB042	WVRB060	WVRB090	WVRB115	WVRB140	WVRB180	WVRB220
Rotational inertia J1	kg ·cm2	1	3	0.053	0.22	1.2	5.3	20	44	90
			4	0.041	0.17	0.95	4.1	15	28	62
			5	0.036	0.16	0.86	3.6	14	22	52
			6	0.034	0.15	0.82	3.3	13	18	47
			7	0.032	0.14	0.79	3.2	12	16	42
			8	0.031	0.14	0.77	3.1	12	15	40
			10	0.03	0.14	0.75	3	11	14	38
		2	15	0.035	0.14	0.72	2.8	11	12	36
			20	0.034	0.13	0.72	2.8	11	12	35
			25	0.034	0.13	0.71	2.8	11	12	35
			30	0.03	0.13	0.7	2.7	10	11	34
			35	0.034	0.13	0.71	2.7	11	12	35
			40	0	0	1	3	10	11	33
			50	0.03	0.13	0.69	2.7	10	11	33
			60	0.03	0.13	0.69	2.7	10	11	33
			70	0.03	0.13	0.69	2.7	10	11	33
			80	0.03	0.13	0.69	2.7	10	11	33
			100	0.03	0.13	0.69	2.7	10	11	33
1.Ratio(i=Nin/Nout)	2.Maximum acceleration torque T?B=60% of T2NOT					3.Output speed 100rpm,acting on the center of the output shaft