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Constar Motion Co., LTD
Constar 12mm Micro Coreless DC Motor 1221N5M2B

Constar 12mm Micro Coreless DC Motor 1221N5M2B

Product catalog summary

Overview: This document provides the specifications for the Precision DC Coreless Motor, which is used in various precision drive applications such as medical equipment, healthcare products, automotive, robotics, and industrial automation.

Specifications:

Voltage: Available in 3.3V, 6.0V, and 12.0V.
Terminal Resistance: 6.9Ω, 5.2Ω, and 17.9Ω respectively.
No-load Speed: 7900 rpm, 12000 rpm, and 14100 rpm.
No-load Current: 14 mA, 30 mA, and 8 mA.
Stall Torque: 1.8 mNm, 5.2 mNm, and 5.3 mNm.
Stall Current: 480 mA, 1150 mA, and 670 mA.
Nominal Torque: 0.4 mNm, 2.3 mNm, and 2.1 mNm.
Nominal Speed: 6370 rpm, 6700 rpm, and 8530 rpm.
Nominal Current: 100 mA, 520 mA, and 270 mA.
Max. Output Power: 0.37 W, 1.64 W, and 1.96 W.
Max. Efficiency: 69%, 70%, and 79%.
Back-EMF Constant: 0.4 mV/rpm, 0.5 mV/rpm, and 0.8 mV/rpm.
Torque Constant: 3.9 mNm/A, 4.7 mNm/A, and 8.0 mNm/A.
Speed/Torque Gradient: 4400 rpm/mNm, 2300 rpm/mNm, and 2700 rpm/mNm.
Rotor Inertia: 0.15 gcm².
Weight: 10 g.
Thermal Resistance: Housing-ambient: 33.3 K/W, Winding-housing: 35.3 K/W.
Thermal Time Constant: Motor: 144 s, Winding: 120 s.
Operating Temperature Range: -20°C to +85°C.
Thermal Class of Winding: 130°C.
Axial Play: 0.02 mm to 0.15 mm.
Radial Play: 0.025 mm.
Axial Load: Dynamic: 0.8 N, Static: 30 N.
Radial Load: 4 N at 3 mm from mounting face.
No. of Pole Pairs: 1.
Bearings: 2 ball bearings.
Commutator: Metal with 5 segments.
Protection Class: IP 40.

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

Catalog excerpts

Constar 12mm Micro Coreless DC Motor 1221N5M2B-1

PRECISION DC CORELESS MOTOR 1221N5M2B 贵金属电刷 Precious Metal Commutation 应用领域 : 医疗、保健、汽车、机器人、工业自动化等精密驱动领域。 Applications: precision drives in medical equipment and devices, healthcare products, automotive, robotics, and industrial automation. Terminal resistance No-load speed No-load current Stall current Stall torque Nominal torque Nominal speed Nominal current 最大输出功率最大效率 Torque constant Back-EMF constant Rotor inertia Speed/torque gradient Thermal resistance housing-ambient Thermal resistance winding-housing Thermal time constant winding Thermal time constant motor 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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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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