FA-1628R Coreless Brushed DC Motor

The FA-1628R is a top-tier 5W high-power coreless brushed DC motor with Φ16mm outer diameter and 28mm extended body. It adopts iron-free coreless rotor, premium precious metal brushes and durable ball bearings instead of sleeve bearings, delivering extreme torque capacity and long service life for heavy-duty operation. It works perfectly with dedicated G16MF gearbox and EM16 series incremental & absolute encoders for industrial high-precision closed-loop control.

• Dimension: Φ16mm × Length 28mm
• Rated Power: 5W
• Voltage Options:3.0V / 6.0V / 12.0V / 24.0V
• Precious metal brush & high-performance ball bearings
• Optional G16MF gearbox & EM16 multi-type encoder

16×28mm 5W high-power coreless brushed motor with ball bearings for heavy-load industrial precision equipment

Mechanical Dimensions

FA-1628R Φ16×28mm coreless brushed DC motor mechanical outline drawing

Dimensions are in mm. Please refer to the datasheet for tolerances and mounting details.

Performance Parameters

Motor specifications 02A 03A 01A 04A
Nominal voltage  V 3.0 6.0 12.0 24.0
No load speed rpm 8000 9500 10000 12000
No load current mA 45 35 25 20
Nominal speed rpm 6420 7623 8025 9630
Nominal torque mNm 4.0 4.31 5.84 5.94
Nominal current A 1.15 0.74 0.53 0.33
Stall torque mNm 20 21.4 29 21.1
Stall current A 5.66 3.61 2.58 1.57
Terminal resistance Ω 0.53 1.66 4.65 15.25
Torque constant mNm/A 3.51 5.91 11.23 18.7
Speed constant rpm/V 2666 1583 833 500
Mechanical time constant ms 4.8 5.1 4.5 5.2
Rotor inertia gcm² 1.21 1.18 1.33 0.83

Optical Gearbox

Optional gearbox
G16MF

Optional encoder

Optional encoder
EM16 增量式(Incremental) 1~1024ppr   1~2通道(channel)
EM16 绝对式(Absolute) 14 bit single turn

Other Specifications

Other specifications
Operating temperature range -20…+80℃ Bearing type Ball bearings
Number of pole pairs 1 Brush type Precious metal brushes
Number of phases 5 Weight of motor 27.45g

Engineering Overview

As the highest power model in the 16mm series, FA-1628R adopts professional ball bearings to replace traditional sleeve bearings, greatly improving load capacity, wear resistance and operational stability. The coreless rotor and 5-segment commutator with precious metal brushes eliminate cogging torque, enabling ultra-smooth and low-noise rotation. It features extremely high stall torque and short mechanical time constant, delivering powerful output and fast dynamic response. Supporting full-range voltage from 3V to 24V, it can be combined with G16MF gearbox and EM16 encoders to build high-performance closed-loop drive systems, ideal for industrial heavy-load equipment requiring long-term continuous operation.
Typical Applications:
• Industrial high-torque miniature servo actuators
• Heavy-duty professional medical drive devices
• High-pressure large-flow micro fluid pumps
• Automated industrial testing and transmission equipment

Need heavy-load winding or bearing & encoder matching solutions?

FA-1628R is a 5W top-power motor equipped with ball bearings and four voltage options. Our team can optimize coil parameters and select matched G16MF gearbox and EM16 encoders to satisfy your extreme heavy-load and high-precision control demands.