Coreless DC Motors

 

Coreless DC Motors are a form of DC motors. Dc motors with no cores are a subset of DC motors. These motors are utilized in applications that require compact motors with quick acceleration. A coreless motor differs in that it has a rotor that is not made with an iron core. The Coreless DC Motors construction have various advantages over standard iron core DC motors.

 

 

First, the removal of iron reduces the rotor’s bulk and inertia, allowing for extremely fast acceleration and deceleration speeds. And, because there is no iron, there are no iron losses, enabling coreless designs much higher efficiency (up to 90%) than standard DC motors. The coreless design also minimizes winding inductance, which reduces sparking between the brushes and the commutator, extending motor life and lowering electromagnetic interference (EMI).

 

 

Key Product Features:

• This design of these Coreless DC Motors enables low inertia and high-efficiency motors. 
• Coreless motors accelerate and decelerate substantially faster than typical motors.
• By removing the iron rotor, torque ripple or cogging is reduced. Even at low speeds, the motor runs smoothly. 
• The lack of iron in the rotor reduces the motor’s total mass.
• Noise has been reduced.
• With less heat created in operation, an efficiency of up to 85% is possible, compared to >50% for an iron core motor.
• Brush life is extended.
• A low time constant indicates a speedier response.

Specifications:

Model: 0408

• Diameter: 4mm
• Length: 8mm
• Speed: about 48,000 rpm at 3V
• Motor shaft diameter: 0.7mm
• Motor shaft length: 2mm
• Wire length: about 35mm

Model: 412

• Output shaft: 4 mm
• Radial shaft: 0.7 mm
• Lead length: about 180mm
• Voltage: 3.7V
• Current: 30 ma
• Speed: about 60000 RPM

Model: 612

• Output shaft: 0.8 MM
• Output shaft length: 5.5 MM
• Weight: 1.4 g
• Voltage: 3.7 V
• Speed: about 50000 RPM

Model: 615

• Output shaft: 0.8 mm
• Output shaft length: 5.5mm
• Line length: 55 MM
• Weight: 2 g
• Voltage: 3.7 V
• Speed: around 45000 RPM

Model: 716A,716B

• 716A: Red & Blue wires
• 716B: Black & White wires
• Size: 7mm X 16mm
• Diameter Shaft: 0.8mm
• Shaft length: 5 mm
• Line length: 80 mm
• Voltage: 3.7V
• No load Speed: about 50000 rpm
• Weight: 2.9 grams

Model: 720

• Voltage: 3.7V
• Current: about 120ma
• Speed: about 50000

Model: 816

• Size: 8 x16.5 mm
• Voltage: 3.7V
• Shaft diameter: 1 mm
• Shaft Length: 5.5 mm
• Line length: 130mm
• Weight: 4.2 grams
• Current: about 150 ma
• Speed: No-load 50000 rpm

Model: 8520

• Weight: 5.2 g
• Voltage: 3.4 V
• No-load current: 240ma
• Speed: about 52000 rpm

Model: 1020 ( Change new style)

• Size: 10mm x 20mm
• Diameter: 1 mm
• Shaft length: 5 mm
• Voltage: 3.7 V
• Speed: about 40000rpm
• Lead wire: 150mm
• Weight: 7.6g

Model: 8523

• Motor diameter: 8.5MM
• Motor length: 23MM
• Output shaft diameter: 1.2MM
• Output shaft length: 5.5MM
• Cable length: 75MM
• Weight: 6g
• Voltage: 7.4V
• Speed: 40000RPM

Package Contains:

• 1pc x Coreless DC Motors