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Constar Motion Co., LTD
Constar 5v BLDC Motor B1220N2B

Constar 5v BLDC Motor B1220N2B

Product catalog summary

Overview: This document provides technical specifications for the B1220N2B brushless DC motor, designed for precision drives in medical equipment and industrial automation fields. It features an inner rotor, slotless, and sensorless design.

Specifications:

Voltage: Available in 7.4V, 6.0V, and 5.0V options.
Terminal Resistance: Ranges from 2Ω to 3.8Ω depending on the model.
No-load Speed: Between 17,200 rpm and 23,000 rpm.
No-load Current: Varies from 0.1A to 0.18A.
Stall Torque: Between 4.9 mNm and 5.8 mNm.
Stall Current: Ranges from 1.8A to 2.5A.
Nominal Torque: Approximately 1.3 mNm to 1.4 mNm.
Nominal Speed: From 10,800 rpm to 15,300 rpm.
Nominal Current: Between 0.57A and 0.78A.
Max Output Power: Ranges from 2.2W to 3.3W.
Max Efficiency: Between 50% and 62%.
Back-EMF Constant: 0.3 mV/rpm.
Torque Constant: Between 2.5 mNm/A and 3.0 mNm/A.
KV Value: Ranges from 2900 rpm/V to 3500 rpm/V.
Speed/Torque Gradient: Between 3030 rpm/mNm and 3800 rpm/mNm.
Rotor Inertia: 0.17 gcm².
Weight: 9.5g.
Thermal Resistance: Housing-ambient is 32 K/W, winding-housing is 5.5 K/W.
Thermal Time Constant: Motor is 190s, winding is 1.5s.
Operating Temperature Range: -40°C to +100°C.
Thermal Class of Winding: 155°C.
Axial Play: 0.012 mm.
Radial Play: 0.008 mm.
Axial Load: Dynamic is 1N, static is 25N.
Radial Load: 6.3N at 3mm from mounting face.
No. of Pole Pairs: 1.
Bearings: 2 ball bearings.
Commutation: Sensorless.
Protection Class: IP 20.

Options: Customizable parameters include lead wire length, shaft length, special coils, gearheads, bearing type, encoder, and driver.

Catalog excerpts

B1220N2B 内转子无槽无传感器 Inner Rotor, Slotless, Sensorless 应用领域 : 医疗器械、工业设备等精密驱动领域。 Applications: precision drives in medical equipment, industrial automation fields. Terminal resistance No-load speed No-load current Torque constant Back-EMF constant Nominal current Nominal speed Nominal torque Stall current Stall torque Speed/torque gradient Rotor inertia Thermal resistance housing-ambient Thermal resistance winding-housing Thermal time constant motor Thermal time constant winding Operating temperature range Thermal class of winding Radial play Axial play Axial load dynamic Axial load static Radial load at 3 mm from mounting face

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Constar 5v BLDC Motor B1220N2B

Constar 5v BLDC Motor B1220N2B

Catalog excerpts

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