ST-020 / SX-020 | Servotak

ST-020 / SX-020 Planetary Gearboxes can output up to 1700 Nm (depends on ratio)

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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:	3.55:1 to 1692.0:1
Efficiency	Up to 98%
Input motor flanges:	For IEC motors and servomotors
Output shaft:	Solid Smooth Output Shaft with Key Hollow Smooth Output Shaft with Shrink Disk Splined Solid Output Shaft Splined Hollow Output Shaft
Versions:	Flange mounted Foot mounted

Carburized, case hardened, and ground gears, offering greater reliability and longer service life.
Compact design
High power density (Nm / dm³)
Low volume and weight
Excellent reliability
Intermittent and continuous operation
ATEX standard requirements
Optional NSF H1 certified food grade lubrication
For any mounting position

Specifications

Stages	Ratio	T_2N(1.2M)	T_2N(6M)	T_2Peak	n_1N	n_1max
Stages	Ratio	(Nm)	(Nm)	(Nm)	(rpm)	(rpm)
1	3.56	1730	1310	3460	1500	2800
	4.29	1730	1310	3460	1500	2800
	5.60	1230	930	2460	1500	2800
	6.75	1020	770	2040	1500	2800
2	12.6	1730	1310	3460	1500	2800
	15.2	1730	1310	3460	1500	2800
	19.9	1730	1310	3460	1500	2800
	24.0	1730	1310	3460	1500	2800
	28.9	1730	1310	3460	1500	2800
	31.4	1230	930	2460	1500	2800
	37.8	1230	930	2460	1500	2800
	45.6	1020	770	2040	1500	2800
	58.5	1020	770	2040	1500	2800
3	54.2	1730	1310	3460	1500	2800
	65.3	1730	1310	3460	1500	2800
	70.8	1730	1310	3460	1500	2800
	78.7	1730	1310	3460	1500	2800
	85.3	1730	1310	3460	1500	2800
	102.9	1730	1310	3460	1500	2800
	111.5	1730	1310	3460	1500	2800
	134.4	1730	1310	3460	1500	2800
	162.0	1730	1310	3460	1500	2800
	172.6	1730	1310	3460	1500	2800
	208.0	1730	1310	3460	1500	2800
	211.7	1230	930	2460	1500	2800
	255.2	1230	930	2460	1500	2800
	271.8	1230	930	2460	1500	2800
	307.5	1020	770	2040	1500	2800
	327.6	1230	930	2460	1500	2800
	394.9	1020	770	2040	1500	2800
4	337.4	1730	1310	3460	1500	2800
	365.7	1730	1310	3460	1500	2800
	396.4	1730	1310	3460	1500	2800
	440.8	1730	1310	3460	1500	2800
	477.9	1730	1310	3460	1500	2800
	531.3	1730	1310	3460	1500	2800
	576.0	1730	1310	3460	1500	2800
	624.4	1730	1310	3460	1500	2800
	694.3	1730	1310	3460	1500	2800
	752.6	1730	1310	3460	1500	2800
	836.9	1730	1310	3460	1500	2800
	907.2	1730	1310	3460	1500	2800
	966.3	1730	1310	3460	1500	2800
	1093.5	1730	1310	3460	1500	2800
	1144.5	1730	1310	3460	1500	2800
	1185.4	1230	930	2460	1500	2800
	1318.1	1730	1310	3460	1500	2800
	1428.8	1230	930	2460	1500	2800
	1692.3	1730	1310	3460	1500	2800
	3422.2	1020	770	2040	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