38mm Frameless Motor for Precision Motion Control

Product Overview of 38mm Frameless Motor

The 38mm frameless motor offers a balanced combination of compact size and usable torque, making it ideal for precision servo systems and robotic joints. 38mm frameless motor's frameless structure allows seamless integration into custom mechanical designs while maintaining smooth and accurate motion control.

high torque frameless motor

Key Features

Compact 38mm frame size
Stable torque output with low ripple
Optimized for closed-loop servo control
Flexible mechanical integration
OEM-ready direct-drive design

Typical Applications

Typical Applications of 38mm Frameless Motor

Application Positioning

The 38mm frameless motor targets small-to-medium precision motion applications that require higher torque than miniature systems while maintaining compact integration.

Typical Industries & Use Cases

Typical applications include collaborative robots, precision actuators, inspection equipment, and medical or rehabilitation devices that demand smooth and quiet motion.

Collaborative robot joints
Medical automation equipment
Semiconductor handling systems
Precision rotary positioning modules

Integration Value

38mm frameless motor's frameless architecture supports direct-drive designs, enabling improved control accuracy and reduced backlash compared to geared systems.

Technical Specifications (38mm Frameless Motor Series)

The following technical data applies to the 38ZWC15X-1.

Motor Characteristics

Motor part number

38ZWC15X-1

Stator outer diameter

mm

38±0.019

Rotor inner diameter

mm

18+0.018

Number of slots

-

12

Pole pairs

-

7

Phase-to-phase resistance

Ω

0.8

Phase-to-phase inductance

mH

0.9

Winding connection method

-

Star connection

Insulation class

-

F

Duty type

-

S2

Feedback method

-

/

Commutation angle

-

120o

Insulation strength (Withstand voltage)

-

1200VAC/1s/3mA

Insulation resistance

-

50MΩ/500VDC

Stator weight

g

50

Rotor weight

g

10

No-load speed

RPM

13000

No-load current

A

0.6(REF)

Rated voltage

VDC

48

Rated power

W

110

Rated torque

N·m

0.1

Rated speed

RPM

10470

Rated current

A

2.75

Torque constant

Nm/A

0.035

Back-EMF constant (effective value)

Vrms/Krpm

2.6

Peak torque

N·m

0.32

Peak current

A

11

Rotor inertia

g·cm²

10

Dimension Drawing

Lead-out type

Lead-out color

Function

UL1332 AWG20

Yellow

U phase

Red

V phase

Black

W phase

38mm frameless motor wiring

Torque Performance Curves

frameless motor.pdf

FAQ – 38mm Frameless Motor

Q1: Is 38mm frameless motor suitable for robotic joints?

Yes, 38mm frameless motor is commonly used in compact robotic joints.

Q2: Can 38mm frameless motor be used as a servo motor?

Yes, with proper drive and encoder.

Q3: Is active cooling required?

Depends on load and duty cycle.

Q4: Can 38mm frameless motor replace a geared motor?

Yes, in backlash-sensitive applications.

Q5: Is customization supported?

Yes, electrical and winding customization is available.

Q6: Do you support mass production?

Yes, from prototype to volume orders.

38mm Frameless Motor for High Precision Servo Applications

Product Overview of 38mm Frameless Motor

Key Features

Product Overview of 38mm Frameless Motor

Key Features

Typical Applications

Typical Applications of 38mm Frameless Motor

Application Positioning

Typical Industries & Use Cases

Integration Value

Typical Applications

Typical Applications of 38mm Frameless Motor

Application Positioning

Typical Industries & Use Cases

Integration Value

Technical Specifications (38mm Frameless Motor Series)

Technical Specifications (38mm Frameless Motor Series)

FAQ – 38mm Frameless Motor

FAQ – 38mm Frameless Motor

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