4pcs 716 Coreless Motor 3.7V 7x16mm Brushed Motors 45000 RPM + 4pcs 75mm CW CCW Propellers Compatible with FPV RC Quadcopter

Product Description

The kit contains four 716 coreless motors designed for small electric vehicles and aerial platforms. Each motor is rated at 3.7 volts and features a brushed construction. The dimensions of the motor housing are 7 mm in length and 16 mm in diameter, making them compact for integration into lightweight builds. When operating, the motors are capable of reaching 45,000 revolutions per minute.

Motor Assembly

The motors are provided in a single pack of four, allowing for balanced propulsion when installed on quadcopter platforms. The coreless design removes the magnetic core that is typically found in traditional motors, which can reduce weight and improve rotational speed. The brushed system provides a straightforward electrical connection and a relatively simple maintenance path, as it does not require a commutator or brush replacement beyond routine inspection.

Propeller Set

Complementing the motors is a set of four propellers, each measuring 75 millimeters in diameter. The propellers are labeled to rotate clockwise (CW) and counter‑clockwise (CCW), enabling the user to pair them appropriately with the motors on a quadcopter frame. This pairing supports standard quadcopter flight dynamics, with alternating rotation directions to balance thrust and torque.

Compatibility

The motor and propeller set is designed to be compatible with FPV (first‑person view) remote‑control quadcopters. This compatibility indicates that the components can fit within the power and size constraints of typical FPV quadcopter frames and battery configurations that operate near the 3.7‑volt range.

Application Scenarios

These motors and propellers can be used in a variety of small, battery‑powered aerial vehicles that require high rotational speeds and compact dimensions. They are also suitable for hobbyist builds that prioritize lightweight construction and moderate thrust generation.

Technical Features

• Motor type: 716 coreless, brushed
• Voltage: 3.7V
• Motor dimensions: 7 mm × 16 mm
• Motor speed: 45,000 RPM
• Propeller diameter: 75 mm
• Propeller rotation: CW and CCW variants
• Package includes: 4 motors + 4 propellers

The inclusion of both motor and propeller components in a single purchase simplifies the assembly process for a new quadcopter. Users can select the appropriate propeller orientation for each motor to achieve the desired flight characteristics. The small size of the motors contributes to a lower overall mass for the aircraft, which can enhance maneuverability and reduce power consumption under typical operating conditions.

Design Considerations

The 3.7‑volt rating aligns with common lithium‑ion or lithium‑polymer battery configurations used in hobbyist drones. The brushed motor construction offers a relatively low cost and easier handling compared to brushless alternatives, while the 716 coreless design maintains a high rotational capability. The 75‑millimeter propellers provide a balance between thrust and efficiency for lightweight frames.

Assembly and Integration

When installing the motors, secure each unit to the frame using screws or mounting brackets that match the 7 mm length and 16 mm diameter specifications. Attach the propellers to the motor shafts, ensuring that clockwise motors receive the CW propeller and counter‑clockwise motors receive the CCW propeller. This arrangement supports the standard quadcopter thrust vectoring scheme, where two motors spin in one direction and the other two spin in the opposite direction.

Safety and Maintenance

Because the motors are brushed, periodic inspection of the brushes and commutator is recommended when operating the quadcopter over extended periods. The coreless construction reduces the amount of magnetic material within the motor, but regular cleaning of the motor housing can prevent buildup of debris that might affect performance. The propellers should be inspected for cracks or damage before each flight session to ensure consistent flight dynamics.

Conclusion

The kit offers a cohesive set of motors and propellers that can be assembled for a compact, 3.7‑volt powered quadcopter. With four 716 coreless motors and four 75‑millimeter propellers, the components provide a straightforward entry point for hobbyists building or modifying small FPV drones. The design focuses on compactness, rotational speed, and compatibility with standard quadcopter configurations.