ST-120 / SX-120

ST-120 / SX-120 Planetary Gearboxes can output up to 60800 Nm (depends on ratio)

Additional Resources:

Find what gearbox suits your motor using this tool

Calculate your machine and find the required gearbox output torque using this tool

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Overview

Number of stages:	1 to 4 stages
Transmission ratios:	4.00:1 to 1982.0:1
Efficiency:	Up to 98%
Inputs Types:	IEC Motor Flange Servo Motor Flange Solid Input Shaft with Key Worm Gearbox Flange Hydraulic Motor Flange
Output Shaft Types:	Hollow Shaft with Shrink Disk Hollow DIN 5480 Splined Shaft Solid Shaft with Key Solid DIN 5480 Splined Shaft
Versions:	With Flange Integrated into the Ring Gear With B5-Style Flange With Feet

Specifications

Stages	Ratio	T_2N(1.2M)	T_2N(6M)	T_2Peak	n_1N	n_1max
Stages	Ratio	(Nm)	(Nm)	(Nm)	(rpm)	(rpm)
1	4.00	60800	45800	121600	800	1200
	5.10	44500	33520	89000	800	1200
	6.00	35500	26740	71000	800	1200
2	14.0	60800	45800	121600	1200	2000
	16.9	60800	45800	121600	1200	2000
	21.7	44500	33520	89000	1200	2000
	28.4	44500	33520	121600	1200	2000
	33.6	35500	26740	71000	1200	2000
	40.5	35500	26740	71000	1200	2000
3	53.1	60800	45800	121600	1500	2800
	63.9	60800	45800	121600	1500	2800
	74.2	44500	33520	89000	1500	2800
	87.5	60800	45800	121600	1500	2800
	93.0	44500	33520	89000	1500	2800
	107.1	44500	33520	89000	1500	2800
	116.9	44500	33520	89000	1500	2800
	130.2	44500	33520	89000	1500	2800
	138.6	35500	26740	71000	1500	2800
	157.3	44500	33520	89000	1500	2800
	170.1	44500	33520	89000	1500	2800
	205.5	44500	33520	89000	1500	2800
	247.8	44500	33520	89000	1500	2800
	293.6	35500	26740	71000	1500	2800
4	324.4	60800	45800	121600	1500	2800
	358.1	60800	45800	121600	1500	2800
	391.0	60800	45800	121600	1500	2800
	431.6	60800	45800	121600	1500	2800
	471.3	60800	45800	121600	1500	2800
	520.8	44500	33520	89000	1500	2800
	557.7	44500	33520	89000	1500	2800
	590.3	60800	45800	121600	1500	2800
	604.8	44500	33520	89000	1500	2800
	673.9	44500	33520	89000	1500	2800
	730.8	44500	33520	89000	1500	2800
	789.4	44500	33520	89000	1500	2800
	878.6	44500	33520	89000	1500	2800
	952.5	44500	33520	89000	1500	2800
	1061.7	44500	33520	89000	1500	2800
	1151.0	44500	33520	89000	1500	2800
	1258.2	35500	26740	71000	1500	2800
	1387.4	44500	33520	89000	1500	2800
	1672.3	44500	33520	89000	1500	2800
	1982.0	35500	26740	71000	1500	2800

Stages	Ratio	T_2N(1.2M)	T_2N(6M)	T_2Peak	n_1N	n_1max
Stages	Ratio	(Nm)	(Nm)	(Nm)	(rpm)	(rpm)
2	16.0	60800	45800	121600	1200	2000
	20.6	44500	33520	89000	1200	2000
	24.4	35500	26740	71000	1200	2000
3	39.0	60800	45800	121600	1500	2800
	47.1	60800	45800	121600	1500	2800
	50.0	44500	33520	89000	1500	2800
	60.2	60800	45800	121600	1500	2800
	72.5	60800	45800	121600	1500	2800
	93.0	44500	33520	89000	1500	2800
	121.5	44500	33520	89000	1500	2800
	144.0	35500	26740	71000	1500	2800
	173.5	35500	26740	71000	1500	2800
4	182.5	60800	45800	121600	1500	2800
	201.1	60800	45800	121600	1500	2800
	240.2	60800	45800	121600	1500	2800
	281.9	44500	33520	89000	1500	2800
	300.8	60800	45800	121600	1500	2800
	368.4	44500	33520	89000	1500	2800
	402.3	44500	33520	89000	1500	2800
	444.1	44500	33520	89000	1500	2800
	503.9	44500	33520	89000	1500	2800
	585.1	44500	33520	89000	1500	2800
	607.4	44500	33520	89000	1500	2800
	693.5	35500	26740	71000	1500	2800
	707.1	44500	33520	89000	1500	2800
	852.3	44500	33520	89000	1500	2800
	924.2	35500	26740	71000	1500	2800
	1073.3	35500	26740	71000	1500	2800
	1296.9	35500	26740	71000	1500	2800

T_2N values are calculated at n₁=n_1n, continuous duty cycle, uniform operation and KA=1 according to ISO 6336. T_2N(1.2M) has been calculated for 1200000 revolutions of the output shaft, and T_2N(6M) has been calculated for 6000000 revolutions of the output shaft. The application factor KA according to DIN-3990-1 must be considered for each duty cycle and machine type.
T_2Peak is the maximum output torque the gearbox can tolerate during startups, inversions or other peaks. This value should never be used for continuous operation or for intermittent operation with frequent accelerations.
n_1N is the rated input speed for continuous operation
n_1Max is the maximum input speed for intermittent service. For continuous operation at speeds over n_1n please inquire

Dimensions