S-2 Series Dual Worm Slewing Drive

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Description
Our S-2 series slewing drive is composed of the open housing, slewing ring, 2 hourglass worms, and supporting components. It is driven by two electric or hydraulic motors to rotate. Owing to double tooth contact, this dual-worm slewing drive is able to produce nearly double output torque in comparison with the product with the same size and installation space. Also, the holding torque is increased accordingly. Due to this characteristic, this open housing slewing drive is widely used in the heavy load applications in the machinery field.

Features
1. This worm drive is designed with a universal installation structure, which facilitates replacement and maintenance.
2. Driven by two worms at the same time, this gearbox has better performance than the single worm slew drives. It also shows better rigidity and double impact resistance.
3. The flexible input hole form enables various gear or hydraulic motors to be connected.

Supply Capacity
We can satisfy all customization requirements on this dual worm slewing drive.

Application
The S-2 series slewing drive is widely used in the relative rotating parts in the machinery field.
1. Drive the drill rig to rotate in the horizontal and pitch directions
2. Control the rotation of the console of cable winding and unwinding machine
3. Rotation parts of excavator

Model	Output Torque	Overturning Moment	Holding Torque	Axial Static Load	Radial Static Load	Axial Dynamic Load	Radial Dynamic Load	Gear Ratio	Tracking Precision	Weight
S14-2	12 kN•m	67.8 kN•m	48 kN•m	555 kN	222 kN	133 kN	117 kN	85 : 1	≤ 0.17°	62kg
S14-2	8851 lbf•ft	50×10^3 lbf•ft	35×10^3 lbf•ft	125×10^3 lbf	50×10^3 lbf	30×10^3 lbf	26×10^3 lbf	85 : 1	≤ 0.17°	62kg

Model	Output Torque	Overturning Moment	Holding Torque	Axial Static Load	Radial Static Load	Axial Dynamic Load	Radial Dynamic Load	Gear Ratio	Tracking Precision	Weight
S17-2	16.8 kN•m	135.6 kN•m	72.3 kN•m	970 kN	390 kN	235 kN	205 kN	102 : 1	≤ 0.15°	102kg
S17-2	12391 lbf•ft	100×10^3 lbf•ft	53×10^3 lbf•ft	218×10^3 lbf	88×10^3 lbf	53×10^3 lbf	46×10^3 lbf	102 : 1	≤ 0.15°	102kg

Model	Output Torque	Overturning Moment	Holding Torque	Axial Static Load	Radial Static Load	Axial Dynamic Load	Radial Dynamic Load	Gear Ratio	Tracking Precision	Weight
S21-2	20.6 kN•m	203 kN•m	105.8 kN•m	1598 kN	640 kN	385 kN	335 kN	125 : 1	≤ 0.15°	143kg
S21-2	15194 lbf•ft	150×10^3 lbf•ft	78×10^3 lbf•ft	359×10^3 lbf	144×10^3 lbf	87×10^3 lbf	75×10^3 lbf	125 : 1	≤ 0.15°	143kg

Model	Output Torque	Overturning Moment	Holding Torque	Axial Static Load	Radial Static Load	Axial Dynamic Load	Radial Dynamic Load	Gear Ratio	Tracking Precision	Weight
S25-2	28 kN•m	271 kN•m	158.3 kN•m	2360 kN	945 kN	590 kN	470 kN	150 : 1	≤ 0.15°	202kg
S25-2	20652 lbf•ft	200×10^3 lbf•ft	117×10^3 lbf•ft	531×10^3 lbf	212×10^3 lbf	133×10^3 lbf	106×10^3 lbf	150 : 1	≤ 0.15°	202kg

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