Custom Servo Motors

Custom frameless torque motors, hollow shaft BLDC servo motors, micro servo motors, and encoder-ready motor kits for robot axes with tight size and thermal constraints.

Target Buyer:For teams with a restricted envelope or torque-speed target that off-the-shelf motors cannot satisfy.

Custom frameless servo motor kit for robot joints

Capability Highlights

Custom winding, KV, torque constant, insulation, stator stack, rotor magnet, and thermal class options
Frameless, housed, hollow-shaft, pancake, and ultra-compact motor layouts
Encoder, brake, gearbox, cable, and connector interface coordination

Typical Applications

Humanoid shoulder, elbow, wrist, knee, ankle, and neck axes
Dexterous hand fingers and compact end effectors
AGV steering, inspection robots, and medical manipulators
Custom lab automation and precision positioning systems

Engineering Focus

Torque-speed curve, winding selection, continuous current, peak current, and thermal path
Rotor inertia, cogging torque, detent torque, vibration, acoustic noise, and balance
Encoder mounting datum, hollow shaft geometry, bearing selection, and cable strain relief

Key Evaluation Matrix

Metric	Typical Range	Why It Matters
Motor geometry	Frameless, housed, hollow shaft, pancake, micro	Geometry determines assembly method, bearing support, and available copper volume.
Torque-speed target	Defined by axis duty cycle	A motor selected only by peak torque often fails continuous heat-rise requirements.
Encoder interface	Magnetic, optical, inductive, resolver-ready	Feedback accuracy and mechanical datum control are central to servo stability.

RFQ Checklist

Outer diameter, length, shaft or hollow bore dimensions
Continuous torque, peak torque, rated speed, maximum speed, duty cycle
Voltage bus, current limits, cooling method, insulation class
Encoder type, brake need, gearbox interface, and drawing files

Risk Controls

High peak torque claim hides poor continuous torque: Require continuous torque, winding temperature, housing temperature, and duty-cycle test conditions.
Motor fits CAD but cannot be assembled repeatedly: Review bearing preload, cable exit, encoder clearance, fastener access, and inspection datums before tooling.

Buyer FAQ

Can you design around a fixed robot joint envelope?

Yes. Send the available diameter, axial height, shaft or hollow bore, mounting holes, torque-speed curve, and thermal limits.

Can you match a custom motor to a specific drive?

Yes. We can review phase resistance, inductance, back EMF, encoder output, current limit, and control loop requirements together.

Related Resources

Inquiry Email

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