WTHR

Significantly enhances overall rigidity, vibration resistance, and load-bearing capacity in any direction.
Annular gear undergoes a surface nitriding process to ensure superior precision throughout their entire lifespan.
Installation dimensions are consistent with industry-standard products, improving versatility.
Compact size, with higher power density.
Suitable for high positioning accuracy, high dynamic periodic operation, and compact radial space conditions.
Spiral bevel gears at the input stage utilize special processed, resulting in lower noise and higher backlash.

Product Features

Integrated Output Shaft

Maximizes torsional rigidity
High Precision

Minimal backlash (<1.5 arc-min)
Full Needle Roller Design

Boosts structural rigidity & output torque
High Transmission Efficiency

Compact design
Superior Rigidity

Carburized/quenched low-carbon steel gears for optimal wear/impact resistance

Specification	Unit	Stage	Ratio	WTHR064	WTHR090	WTHR110	WTHR140	WTHR200
Rated output torqueT2N	Nm	1	4	55	150	330	650	2000
			5	60	160	330	650	2050
			6	55	150	310	600	1950
			7	50	140	300	550	1700
			8	55	150	330	650	2000
			10	60	160	330	650	2050
			12	55	150	310	600	1950
			14	50	140	300	550	1700
			16	40	100	230	450	1450
			20	35	90	200	400	1350
		2	25	60	160	330	650	2025
			35	50	140	300	550	1700
			40	55	150	330	650	2000
			50	60	160	330	650	2050
			60	55	150	310	600	1950
			70	50	140	300	550	1700
			80	55	150	330	650	2000
			100	60	160	330	650	2050
			120	55	150	310	600	1950
			140	50	140	300	500	1700
			160	40	100	230	450	1450
			200	35	90	200	400	1350
Emergency stop torque T2NOT	Nm	1,2	4～200	Triple rated output torque
Rated input speed n1N	rpm	1,2	4～200	3300-4000	3300-4000	2800-4000	2300-3300	1500-2500
Maximum iutput speed n1B	rpm	1,2	4～200	6000	6000	5000/6000	4500/5000	3000/3500
Precision backlash P1	arcmin	1	4～20	≤ 4
Precision backlash P1	arcmin	2	25～200	≤ 7
Standard backlash P2	arcmin	1	4～20	≤ 6
Standard backlash P2	arcmin	2	25～200	≤ 9
Torsional rigidity	Nm/arcmin	1,2	4～200	13	31	82	155	650
Max Tilting Moment M2k	Nm	1,2	4～200	130	280	510	1350	3400
Allowable radial force F2aB	N	1,2	4～200	2500	4800	7800	13000	26000
Allowable axial force F2aB	N	1,2	4～200	2000	3500	6000	11000	21000
Lifespan	hr	1,2	4～200	20000
Efficiency	%	1	4～20	≥ 95
Efficiency	%	2	25～200	≥ 92
Weight	kg	1	4～20	2.2	5.1	9.5	21.7	59.5
Weight	kg	2	25～200	2.8	6.5	11.3	23	61.5
Working temperature	°C	1,2	4～200	-20°C ～ +40°C
Lubricating		1,2	4～200	Synthetic lubricating greas
IP Grade		1,2	4～200	IP65
Installation direction		1,2	4～200	In any direction
Noise level (n1=3000rpm,off load)	dB(A)	1,2	4～200	≤ 63	≤ 65	≤ 68	≤ 70	≤ 72