24V Coreless Brushed DC Motor Ø28 mm 32.71 mN·m Industrial DC Motor | BDCB2864 BODENMOTION

Overview of BDCB2864 Coreless Brushed DC Motor

The BDCB2864 coreless brushed DC motor is built around a larger Ø28 × 64 mm platform for industrial mechanisms that require substantially more torque than smaller coreless motor sizes. Rated torque increases from 19.63 mN·m on the 6V version to 32.71 mN·m on the 24V version, while all three windings maintain rated speeds close to 6,500–6,700 rpm.

Available in 6V, 12V, and 24V configurations, the BDCB2864 provides a 13–55W product platform with a 200 g motor body. The same motor can also be combined with optional planetary gearbox, photoelectric encoder, magnetoelectric encoder, or brake configurations when the final industrial drive requires additional transmission or feedback components.

Key Features of BDCB2864 Industrial DC Motor

• High Rated Torque – The 24V winding delivers 32.71 mN·m rated torque, providing the strongest nominal torque of the three standard configurations.
• 13–55W Motor Platform – Provides a higher-output coreless brushed platform for industrial mechanisms that exceed the requirements of smaller motor sizes.
• Up to 56.83W Maximum Output – The 24V version reaches the highest measured maximum-output power at its specified test point.
• 84.3% Maximum Efficiency – The 24V winding also records the highest measured maximum efficiency among the three versions.
• 6V / 12V / 24V Winding Options – Allows different combinations of current, torque, and power-system architecture without changing the Ø28 × 64 mm mechanical envelope.
• Graphite Brush Motor Construction – Uses the BDCB graphite brushed coreless motor platform with simple positive and negative DC terminal connections.
• Higher Shaft Load Capacity – Supports up to 2 N dynamic axial load and 20 N radial load, measured 5 mm from the flange.
• Multiple Optional Components – Planetary gearbox, photoelectric encoder, magnetoelectric encoder, and brake are available as optional additions.

Technical Specifications of BDCB2864 Coreless Brushed DC Motor

The three suffixes identify different winding versions. Their current demand, resistance, torque constant, and speed constant differ considerably, so the final model should be selected around the available voltage and required operating point.

Motor Model	Unit	BDCB2864-01	BDCB2864-02	BDCB2864-03
At Nominal
Nominal Voltage	V/DC	6	12	24
Nominal Speed	rpm	6,675	6,497	6,497
Nominal Current	A	2.92	1.95	1.11
Nominal Torque	mN·m	19.63	26.46	32.71
Free Load
No-load Speed	rpm	7,500	7,300	7,300
No-load Current	mA	320	240	64
At Max. Efficiency
Maximum Efficiency	%	78.2	76.9	84.3
Speed	rpm	6,713	6,497	6,753
Current	A	2.806	1.952	0.779
Torque	mN·m	18.74	26.46	22.30
At Max. Output Power
Maximum Output Power	W	35.05	45.97	56.83
Speed	rpm	3,750	3,650	3,650
Current	A	12.16	8.02	4.83
Torque	mN·m	89.2	120.3	148.7
At Stall
Stall Current	A	24.00	15.80	9.60
Stall Torque	mN·m	178.5	240.5	297.4
Motor Constants
Terminal Resistance	Ω	0.25	0.76	2.50
Terminal Inductance	mH	0.030	0.090	0.280
Torque Constant	mN·m/A	7.54	15.46	31.19
Speed Constant	rpm/V	1,250.0	608.3	304.2
Speed/Torque Constant	rpm/mN·m	42.0	30.3	24.5
Mechanical Time Constant	ms	7.02	6.56	4.97
Rotor Inertia	g·cm²	15.94	20.63	19.32
Number of Pole Pairs	—	1	1	1
Number of Phases	—	7	7	7
Weight	g	200	200	200
Typical Noise Level	dB	≤45	≤45	≤45

Not sure how to interpret model differences? See the model code breakdown below ↓

Motor Model Number Breakdown

Mechanical Design & Installation Notes for BDCB2864 High Torque Coreless Motor

The BDCB2864 is a larger and heavier coreless motor platform, so the motor mounting, shaft loading, and connected transmission should be evaluated together during integration.

Shaft Load Limits
Maximum dynamic axial load is 2 N, while maximum radial load is 20 N measured 5 mm from the flange.

Mechanical Clearance
Axial play is specified at 0–0.1 mm, and radial play is limited to 0.015 mm. Couplings and transmission components should be installed with controlled alignment.

Higher-Current Operation
The 6V version reaches 24 A at stall, while the 12V and 24V versions reach 15.8 A and 9.6 A respectively. Wiring, connectors, switching components, and the DC supply should be sized for the selected winding and expected load condition.

Operating Environment
The specified ambient operating range is −20°C to +80°C, relative humidity should remain below 90% at 25°C, and rotor temperature should not exceed 125°C.

Transmission Integration
A planetary gearbox is available as an option when the final output requirement differs from the direct motor-shaft speed and torque characteristics.

Feedback and Brake Options
Photoelectric encoder, magnetoelectric encoder, and brake configurations are also listed as optional components for projects requiring additional system functions.

OEM Customization Options for BDCB2864 Graphite Brush Motor

The BDCB2864 can be configured around the required voltage platform, transmission arrangement, feedback requirements, and final industrial assembly.

Customization Item	Available Options / Description
Winding Version	6V, 12V, or 24V standard winding
Planetary Gearbox	Optional gearbox configuration
Photoelectric Encoder	Optional feedback component
Magnetoelectric Encoder	Optional feedback component
Brake	Optional brake configuration
Shaft Configuration	Shaft requirements can be reviewed for the driven mechanism
Wiring / Lead Arrangement	Electrical connection can be reviewed according to equipment layout
Connector Type	Connector requirements can be evaluated for the OEM harness
Mounting Interface	Mechanical integration can be reviewed for the final assembly
Prototype Combination	Motor and optional components can be evaluated together before production

The base motor uses a simple +Vcc / −GND terminal definition, while gearbox, encoder, and brake options are additional configurations rather than standard components.

Application Fields of BDCB2864 Industrial DC Motor

The BDCB2864 is most relevant to industrial mechanisms that need higher brushed-motor torque and can accommodate a Ø28 × 64 mm motor envelope.

• Industrial Actuators – Provides direct motor torque for larger valve, linkage, and rotary actuation mechanisms.
• Automation Handling Systems – Drives feeders, indexing modules, rollers, and positioning mechanisms with higher load demand.
• Robotic Auxiliary Mechanisms – Can serve grippers, tool modules, and secondary axes where brushed DC control is appropriate.
• Geared Drive Assemblies – Supports planetary gearbox integration when lower output speed or higher transmitted torque is needed.
• Feedback-Controlled Mechanisms – Optional photoelectric or magnetoelectric encoders allow the motor platform to be adapted to systems requiring feedback.
• Brake-Equipped Industrial Drives – The optional brake provides another configuration path for industrial actuator development.

Why Choose BODENMOTION for Your Coreless Brushed DC Motor Project

The BDCB2864 should be selected from the actual load and electrical architecture rather than from peak torque alone. Its three windings produce significantly different current and motor-constant characteristics even though the external motor size remains unchanged.

• High-Torque Operating-Point Review – Rated, maximum-output, and stall torque are considered separately so peak test data is not mistaken for a normal operating point.
• 6V / 12V / 24V Winding Matching – We help compare voltage, current, torque, and power requirements across the three standard winding options.
• Industrial Power-System Review – Higher current at startup and heavy load can be considered when defining cables, connectors, switching devices, and power-supply capacity.
• Mechanical Load Assessment – Shaft loading, coupling arrangement, gearbox integration, and installation space can be reviewed as one system.
• Cost-Effective Alternative to Premium Brands – BODENMOTION provides a configurable coreless brushed motor platform for OEM projects seeking flexible industrial motor sourcing.
• Prototype Configuration Validation – Motor, gearbox, encoder, and brake combinations can be evaluated before final production configuration.

Customer Feedback

Germany | Industrial Actuator Manufacturer
Application: heavy-load rotary actuator
Feedback: The 24V winding provided the required torque while allowing the drive to remain within the existing Ø28 mm motor envelope.

Japan | Automation Equipment OEM
Application: indexing and handling mechanism
Feedback: The larger motor platform provided additional load margin for repeated mechanical cycles compared with the smaller coreless motor previously evaluated.

United States | Industrial System Developer
Application: geared feedback drive
Feedback: The available gearbox and encoder options allowed the development team to build the transmission and feedback functions around one motor platform.

Downloads – Datasheet

[BDCB2864 Coreless Graphite Brushed DC Motor Specification PDF]

FAQ – BDCB2864 Industrial DC Motor

Q1: Why does the 24V version provide the highest rated torque while drawing the lowest nominal current?

A1: The three models use different winding configurations. The 24V winding has a higher torque constant and resistance than the 6V and 12V versions, allowing it to provide 32.71 mN·m rated torque at 1.11 A nominal current.

Q2: Can the 56.83W maximum-output point be used continuously?

A2: It should not automatically be treated as a continuous operating rating. The 56.83W value is measured on the 24V version at 3,650 rpm and 4.83 A, which is a substantially different operating point from its nominal condition.

Q3: Which optional components are available for the BDCB2864?

A3: The specification lists a planetary gearbox, photoelectric encoder, magnetoelectric encoder, and brake as optional components.

Q4: What warranty does BODENMOTION provide?

A4: BODENMOTION provides a 1-year warranty for product-quality issues under normal operating conditions. Damage caused by misuse, improper installation, or operation outside specified limits is excluded.

Q5: Is there a shorter Ø28 mm graphite brushed alternative?

A5: Yes. The BDCB2845 uses a shorter Ø28 × 45 mm body, weighs 145 g, and belongs to the 9–35W product class. It is more suitable when axial installation space is tighter, while the BDCB2864 provides a longer 64 mm platform with rated torque up to 32.71 mN·m.

Contact BODENMOTION – High Torque Coreless DC Motor Solutions

For industrial OEM mechanisms requiring a larger graphite brushed coreless motor, BODENMOTION supports selection around the complete electrical load, mechanical transmission, and optional feedback configuration.

What We Can Provide

• Winding Selection Support – Compare 6V, 12V, and 24V versions according to available supply, current capacity, speed, and torque.
• High-Load Operating Review – Evaluate nominal, transient, maximum-output, and stall conditions separately.
• Mechanical Integration Assessment – Review shaft loading, coupling arrangement, installation envelope, and transmission requirements.
• Gearbox and Encoder Options – Configure optional gearing or feedback according to the final motion system.
• Brake Configuration Review – Evaluate whether the optional brake should be included in the final motor assembly.
• OEM Prototype & Production Support – Support sample evaluation, pilot builds, approved configurations, and stable long-term production.

📧 Email: info@bodenmotion.com
🌐 Website: https://bodenmotion.com