Home Brushless Motors 728-C00 – 28mm Brushless Motor

728-C00 – 28mm Brushless Motor

Slotless (inrunner) Ø28 x 45mm / with dual shafts / sensored

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Drawing

Key Features

Model No.   728-C00
Motor Type   Inrunner [Slotless]
Diameter   mm 28
Length   mm 45
Voltage   V 36
No-load Current   A 0.12
No-load Speed   rpm 13710
Stall Torque   mNm 186.03
Stall Current   A 7.53
Nominal Torque   mNm 21.52
Nominal Speed   rpm 12100
Nominal Current   A 0.87
Sensor Commutation   Sensor
Stock Status   instock

Performance characteristics

Nominal voltage V 36
No load speed rpm 14 703
No load current A 0.14
Nominal speed rpm 13 320
Nominal torque mNm 18.49
Nominal current A 0.81
Stall torque mNm 126.28
Stall current A 5.54
Maximum efficiency % 75.20

Design and accessories

Availability 8 weeks
Motor Type Brushless
Commutation Sensored / sensorless
Shafts Dual / single
Encoder Magnetic / optical
Gearbox Range 1:4 ~ 1:3560
Connections To requirement
Cable To requirement
Housing Material Aluminium alloy

Motor body characteristics

Thermal resistance housing-ambient °C/W 9.6
Thermal resistance winding-housing °C/W 6.3
Thermal resistance winding-housing s 37
Thermal time constant motor s 584
Ambient temperature min °C -30
max °C +100
Max. permissable winding temperature °C +150
Max. permissable rotor speed rpm 25 000
Axial play at axial load < 0.8N mm 0.0
< 0.8N mm 0.3 max
Radial play Preloaded
Max. axial load (dynamic) N 7.5
Max. force for press fits (static) N 100.0
with shaft supported N 2 000
Max. radial loading (5mm from flange) N 25.0
Number of pole pairs 1
Number of winding phases 3

Winding specific characteristics

Terminal resistance Ω 6.50
Terminal inductance mH 0.73
Torque constant (Kt) mNm/A 22.80
Speed constant (Kv) rpm/V 419
Speed / torque gradient rpm/mNm 75
Mechanical time constant ms 4.1
Rotor inertia mNm² 0.520

Operating range (based on on ambient 25°C)

For each motor frame size (diameter / length), we present the operating range diagram that relates to the winding of the stock sampleable part. The part number of the stock sampleable part is shown in the diagram below, and the product page of the stock sampleable part, can be found in the ‘related products’ section towards the bottom of the page.

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 Stock Level Motor Type 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) Sensor Commutation
728-401 – 28mm Brushless Motor Image 728-401
Download Datasheet
7 Inrunner [Slotless] 28 45 12 0.26 13250 99.81 11.54 19.60 10650 2.27 Sensor
728-800 – 28mm Brushless Motor Image 728-800
Download Datasheet
Made to order Inrunner [Slotless] 28 45 24 0.17 13250 177.58 10.76 22.11 11970 0.81 Sensor

Technical Documents