Description
The Johnson B-Grade Side-Shaft Geared Motor is a high-performance, cost-effective actuator engineered for industrial automation, robotics, and complex mechanical assemblies. Designed with an off-centered (side) shaft and a durable metal gearbox, this motor provides the substantial torque required for demanding applications ranging from precision industrial actuators to household appliances. Its robust design, featuring metal bushes for enhanced wear resistance, ensures reliable operation even under consistent heavy-duty usage.
This “B-Grade” series is an excellent choice for projects where budget optimization is essential without compromising on functional power. Operating smoothly within a 6V to 18V DC range, this motor delivers 75 RPM at 12V with a notable torque of 6.7 kg-cm. Whether you are building an autonomous robotic platform, an automated kitchen appliance, or a specialized industrial feed mechanism, this Johnson motor provides the reliable, high-torque motion needed for professional-grade results.
Note: This motor has a manufacturing tolerance of ±20% in RPM. While B-Grade motors offer incredible value, for applications requiring maximum longevity, superior torque efficiency, and higher cycle life, we recommend our “Grade A Quality” (Orange series) motors.
Key Features
- High-Torque Output: Delivers a consistent 6.7 kg-cm of torque at 75 RPM, providing substantial driving force for demanding mechanical loads.
- Robust Metal Gearbox & Gears: Constructed with high-quality metal gears to ensure long-term mechanical integrity and resistance to wear.
- Wear-Resistant Side Shaft: The off-centered shaft is equipped with metal bushes to prevent degradation, ensuring smooth rotation over the motor’s lifespan.
- Universal Coupling Design: The motor shaft includes an integrated hole for easy and secure coupling with wheels, gears, or custom linkages.
- Reliable Industrial Build: Proven reliability in diverse applications, from welding machines and peristaltic pumps to automated dispensers and robotics.
Benefits
- Cost-Effective Reliability: Combines Johnson’s legacy of high-performance motor design with an accessible price point for large-scale prototyping or budget-sensitive projects.
- Versatile Power Range: Wide 6V–18V DC operating voltage provides flexibility for various power supply and battery configurations.
- Easy Installation: Features six M3 mounting holes for standardized, secure attachment to chassis or mounting brackets.
- Compact Form Factor: Delivers high-torque geared output in a compact housing, saving space in tight industrial or robotic designs.
- Proven Performance: An established choice for automation, known for consistent torque-speed characteristics in a variety of mechanical environments.
Applications
- Robotic Platforms: Perfect for drive systems in heavy-duty robots and automated mobile platforms.
- Household & Kitchen Appliances: Ideal for oven rotisseries, coffee machines, grill drives, and automated garbage disposers.
- Industrial Automation: Suited for welding machines, water meter IC card systems, and automatic actuators.
- Fluid Handling: Reliable performance in peristaltic pump systems.
- Automated Vending & Kiosks: Great for lighting, coin refund devices, and automated towel or soap dispensers.
Specifications
| Parameter | Specification |
|---|---|
| Model | Johnson B-Grade Side-Shaft |
| Operating Voltage | 6V – 18V DC (12V Nominal) |
| Rated RPM (@12V) | 75 RPM (±20% tolerance) |
| Torque | 6.7 kg-cm |
| Shaft Type | Side/Off-Centered |
| Gear Material | Metal |
| Mounting | 6 x M3 Holes |













