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68mm Frameless BLDC Motor

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Product Description

68mm Frameless BLDC Motor 

68mm Frameless BLDC Motor - HOLRY


68mm frameless DC brushless motor, with a split stator and rotor hollow structure, featuring high torque density, zero backlash direct drive, suitable for collaborative robots, medical equipment and precision pan-tilt units, and supporting parameter customization.

Outer diameter 68mm. Ring-shaped split design. Equipped with large and hollow through holes for easy wiring and piping. Without an outer shell, it has a lightweight structure. The gear slot has low torque, smooth operation at low speeds, fast dynamic response. It can directly drive the load without a reducer. Voltage, stack thickness, and sensors can all be customized as needed.


Curves

68mm Performance Curves

68mm Frameless Torque Motors Performance Curves - HOLRY

Specifications

Operating Specifications

Ambient Temp 25 ℃
Winding Temp 155°C
Winding adjustment 0
System Friction 0 N·m
Heat Sink 7.5" x 7" x 0.375"


Performance Specifications

Bus Voltage (Vbus) 48  VDC
Max Cont. Torque (Tcont) 0.631  Nm
Max Cont. Current (Icont) 4.19
Peak Torque (Tpk) 1.726  Nm
Peak Current (Ipk) 10.78  Arms
Rated Torque (Trtd) 0.602  Nm
Rated Power (Prtd) 166  W
Rated Speed (Nrtd) 2642  RPM


Electrical  Specifications

Rm at Tamb 0.9522  Ω
LM 1.062 mH
Back EMF 14.88 Vpk / kRPM
Kt at Temp 0.15  N·m/Arms
Km: 0.146  Nm/√W
Commutation sine
NL Comm Freq 538 Hz


Mechanical Specifications



Stack Length
 8.2 mm
Rotor ID 34 mm
Weight 0.173  kg
Poles 20


Dimensions

68mm Frameless BLDC Motor Dimensions

68mm Frameless BLDC Motor Dimensions - HOLRY


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