This geared motor is designed to match one of Yaskawa Electric's most versatile servo systems, delivering exceptional responsiveness. The S7J extends the performance of the Yaskawa SGM7J servo motor series, renowned for its superior responsiveness in applications requiring precise load matching. Offering gear ratios up to 50:1, the S7J enables precise motion in low-load applications while ensuring world-class accuracy at rated speeds up to 3000 rpm and torque ratings up to 2.39 N-m (21 in-lb).
The YASKAWA S7J geared motor is a geared motor from the Yaskawa Sigma-7 series, specifically designed for small-capacity, medium-inertia loads. Through precise matching with the SGM7J servo motor in the same series, it significantly improves the load adaptability of servo systems, especially suitable for low-speed, high-precision applications. Below is a detailed overview:
Core Compatibility and Performance Parameters
Compatibility Features:
This geared motor is a tailor-made product for the Yaskawa SGM7J servo motor, which covers power ranges from 50W to 1.5kW. The S7J geared motor perfectly matches it, maximizing the precise control performance of the entire system.
Key Operating Parameters:
Rated speed up to 3000 rpm, maximum output torque up to 2.39 N·m; specific models like the S7J01A-VL050-03 have a gear ratio of up to 50:1 and a maximum torque of 1.2 N·m, meeting the torque and speed conversion requirements in small-capacity scenarios.
Precision Guarantee:
High-precision inline planetary gearbox features low backlash, and the accompanying SGM7J servo motor incorporates a 24-bit encoder, achieving a resolution of 16.7 million pulses per revolution. This provides industry-leading positioning accuracy, suitable for scenarios with high motion precision requirements.
Core Structure and Design Highlights
Standardized Gear Configuration:
Based on the universal gearbox design of the Yaskawa Sigma-7 series, five different gear ratios and six gearbox sizes are available, allowing for flexible configuration to suit specific operating conditions of small-capacity, medium-inertia loads without additional adaptation or modification.
High Protection and Durability:
The accompanying SGM7J servo motor has an IP67 protection rating, with some S7J models reaching IP65, resisting dust and water intrusion. The use of neodymium iron boron permanent magnets reduces rotor size, and combined with an optimized winding structure, not only reduces cogging torque but also lowers operating temperature by 20% compared to previous generations, extending overall service life.
Easy Adaptability:
The gearbox is factory-tested and exhibits high compatibility with servo motors. The entire system is compatible with the control circuits and installation specifications of the Sigma-5 series servo motors, facilitating upgrades and reducing replacement costs for older equipment.
Typical Applications:
Due to its small capacity, medium inertia, high precision, and high reliability, the S7J gear motor is commonly used in industrial applications requiring high motion control precision and stability. Examples include end effectors for robots, joint drives for small robotic arms, precision transmission mechanisms for material handling and sealing in automated packaging equipment, small automated assembly lines in the electronics manufacturing industry, and precision conveying systems. It ensures smooth and precise motion control even under low-load conditions.
Parameter
S7J01A-VL050-03 (Match SGM7J - 01A)
S7J04A-VLxxx-xx (Match SGM7J - 04A)
S7J08A-VLxxx-xx (Match SGM7J - 08A)
Motor Power
50 W
400 W
750 W
Rated Voltage
24 V DC
200 V (AC)
400 V (AC)
Gear Ratio
50:01:00
Optional up to 50:1
Optional up to 50:1
Rated Torque
1.2 N·m
1.27 N·m
2.39 N·m
Instantaneous Maximum Torque
/
4.46 N·m
8.36 N·m
Rated Speed
3000 rpm
3000 rpm
3000 rpm
Maximum Speed
3000 rpm
6000 rpm
6000 rpm
Encoder Resolution
24-bit
24-bit
24-bit
Protection Class
IP65
IP67
IP67
Operating Temperature Range
-10 °C to +40 °C
/
/
Mounting Type
Flange Mount
Flange Mount
Flange Mount
Weight
/
1.7 kg
2.9 kg
Allowable Load Moment of Inertia
/
10 times the motor inertia
12 times the motor inertia
Models
YASKAWA Gear Motors S7J Gear Motors
Features
Yaskawa factory installed and tested for a perfect fit and guaranteed long term performance
Backed by a full Yaskawa warranty
Gear ratios: 3/1, 5/1, 10/1, 25/1 or 50/1
Quiet helical cut gears reduce vibration and noise
High precision operation with a standard backlash of 5 arc-min
High rigidity and torque capacity with a design featuring uncaged needle roller bearings
Optimized adapter bushing minimizes inertia, allowing more output torque to be realized
Seal leakage is prevented by high viscosity, anti-separation grease that won’t liquefy or migrate away from gears
Maintenance free grease for the life of the unit, regardless of the gearhead’s orientation
Delivery information typically includes delivery times, shipping methods, packaging, etc., which may vary depending on the seller and the location of purchase.
The S7J geared motor is designed for small-capacity, medium-inertia loads. It is especially suitable for low-speed, high-precision industrial applications such as robot end effectors, joint drives for small robotic arms, precision transmission in packaging equipment, and assembly lines.
The S7J series is tailor-made for the YASKAWA SGM7J servo motor, covering a power range from 50W to 1.5kW, which ensures perfect system matching and optimal performance.
It comes with standardized gear configuration options including five distinct gear ratios: 3/1, 5/1, 10/1, 25/1, and up to 50/1, to accommodate various torque and speed requirements.
The S7J geared motor series features high protection for demanding environments, with the accompanying SGM7J servo motor rated at IP67 and specific S7J gearbox models reaching IP65 dust and water resistance.
Precision is achieved through a high-precision inline planetary gearbox featuring a low backlash of 5 arc-min. Additionally, it matches with the SGM7J servo motor’s 24-bit encoder, offering 16.7 million pulses per revolution for advanced positioning accuracy.
Yes. The S7J geared motor system is designed to be compatible with the control circuits and installation specifications of the Sigma-5 series servo motors, facilitating easy upgrades and reducing cost.
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