Home Brushless Motors 712-201


Slotless (inrunner) Ø12 x 20mm / with dual shafts / sensorless


Key Features

Model No.   mm 712-201
Diameter (mm)   mm 12
Length (mm)   mm 20
Voltage (V)   mm 6
No-load Current (A)   mm 0.23
No-load Speed (rpm)   mm 26870
Stall Torque (mNm)   mm 4.35
Stall Current (A)   mm 2.17
Nominal Torque (mNm)   mm 1.60
Nominal Speed (rpm)   mm 18160
Nominal Current (A)   mm 0.81
Sample Available   Yes

Performance characteristics

Nominal voltage V 6
No load speed rpm 26 870
No load current A 0.23
Nominal speed rpm 18 160
Nominal torque mNm 1.60
Nominal current A 0.81
Stall torque mNm 4.35
Stall current A 2.17
Maximum efficiency % 62.30

Design and accessories

Availability Stocked design
Motor Type Brushless
Commutation Sensorless
Shafts Dual
Encoder Not fitted
Gearbox Not fitted
Connections Tinned
Cable 100mm x AWG28
Housing Material Aluminium alloy
Body diameter mm 12
Body length mm 20
Weight g 9.8

Motor body characteristics

Thermal resistance housing-ambient °C/W 38.3
Thermal resistance winding-housing °C/W 9.6
Thermal resistance winding-housing s 5
Thermal time constant motor s 196
Ambient temperature min °C -30
max °C +100
Max. permissable winding temperature °C +125
Max. permissable rotor speed rpm 50 000
Axial play at axial load < 0.8N mm 0.0
< 0.8N mm 0.3 max
Radial play Preloaded
Max. axial load (dynamic) N 0.3
Max. force for press fits (static) N 11.0
with shaft supported N 200.0
Max. radial loading (5mm from flange) N 4.3
Number of pole pairs 1
Number of winding phases 3

Winding specific characteristics

Terminal resistance Ω 2.76
Terminal inductance mH 0.19
Torque constant (Kt) mNm/A 2.00
Speed constant (Kv) rpm/V 4 740
Speed / torque gradient rpm/mNm 4 580
Mechanical time constant ms 10.0
Rotor inertia mNm² 0.017

Operating range (based on on ambient 25°C)

Sample request

We aim to get you up and prototyping as quickly as possible. We stock off-the-shelf samples for each motor size, to support commercial development.

Our application engineers can advise on motor design and selection, mechanism design, and support the development of high performance motor drivers. They can also assist to validate the in-application performance and longevity suitability of a down-selected motor or mechanism design.

Contact our application engineering team to discuss your project, using the form, or email [email protected].

Related products

Export Data
Product Image Product name Diameter (mm) Length (mm) Voltage (V) No-load Current (A) No-load Speed (rpm) Stall Torque (mNm) Stall Current (A) Nominal Torque (mNm) Nominal Speed (rpm) Nominal Current (A)
712-301 Image 712-301
Download Datasheet
12 20 9 0.16 35950 7.05 3.10 1.50 27937 0.66 Enquire

Technical Documents