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Home / Products Centre / Brushless Dc Motor / Geared Brushless DC Motor

Brushless DC Motor with Planetary Gearbox

What is brushless dc motor?

A brushless direct current motor (BLDC) is a small but powerful type of electric motor that uses direct current as its power source. Because of their size and efficiency, BLDCs are increasing in their popularity and the number of applications they're used for.

 

BesFoc offers a wide range of brushless DC motor products featuring:

  • Output Power from 15 W (1/50 HP) up to 3000 W (4 HP)
  • Motor size from 28mm to 110mm ( Nema 11 to Nema 42)
  • Integrated brushless servo motor (pulse / RS485 / CANopen) options
  • Many different shaft kinds available
    • Spur gearbox, worm gearbox, planetary gearbox available
  • Electromagnetic Brake / Encoder options
  • AC or DC Input Drivers
 

BesFoc brushless dc motor:

As a professional brushless dc motor manufacturer with 13 years in china, BesFoc offer various bldc motors with customized requirements, including 42 57 60 80 86 110 130mm, additionally, gearboxes, brakes, encoders, brushless motor drivers and integrated drivers are optional.
24v brushless motor

Nema17 42BLS Series Brushless DC motor with Common / High Precision Planetary Gearbox

Brushless DC motor, power: 20W ~ 110W, rated voltage: 24V, rated speed: 4000rpm, rated torque: 0.0625Nm ~ 0.25Nm
Optional parts: Gearbox, brake, encoder, integrated built-in drivers...
Model Phase Poles Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Body Length Rotor Inertia Driver Weight
Phase Poles Vdc Rpm Nm A W mm g.cm2 / Kg
BF42BLS01 3 8 24 4000 0.0625 1.8 26 41 24 BFBLD120 0.3
BF42BLS02 3 8 24 4000 0.125 3.3 52.5 61 48 BFBLD120 0.45
BF42BLS03 3 8 24 4000 0.185 4.8 77.5 81 72 BFBLD120 0.65
BF42BLS04 3 8 24 4000 0.25 6.3 105 100 96 BFBLD120 0.8

42JXLG200K Common Planetary Gearbox For 42BL/BLS BLDC Motor

Feature of Gearbox:
Ring Material Bearing at output Max. Radial Load（N) Max.shaft axial load(N) Radial play of shaft(mm） Axial play of shaft（mm） Backlash at no-load（°） Shaft press fit force.max（N）
metal Ball bearing 200 100 ≤0.06 ≤0.3 ≤2.5 150
Pinion Specifications ：
Module No.of teeth Pressure angle Hole diameter Reduction Ratio
0.6 11 20 ° Φ3.98 1:19 / 1:22 / 1:27 / 1:68 / 1:82 / 1:95 / 1:115
17 1:14 / 1:49 / 1:59
Gearbox Specifications ：
Reduction Ratio Exact Reduction Ratio Rated tolerance torque Max momentary tolerance torque Eifficiency L(mm) Weight(g)
1:3.71 , 1:5.18 1:3.71 , 1:5.18 2.0 N.m Max. 5.0 N.m 90％ 34.2±0.5 265
1:14, 1:19, 1:22, 1:27 1:13.76, 1:19.22, 1:22.21, 1:26.83 8.0 N.m Max. 20N.m 81％ 49.6±0.5 380
1:49, 1:59, 1:68, 1:82, 1:95, 1:115 1:48.83, 1:58.86, 1:68.28, 1:82.30, 1:95.47, 1:115.08 16.0 N.m Max. 40 N.m 73％ 62.0±0.5 475
1:181, 1:218, 1:253, 1:305, 1:354, 1:426, 1:495, 1:596 1:180.96, 1:218.12, 1:253.03, 1:304.99, 1:353.8, 1:426.46, 1:494.71, 1:596.31 20.0 N.m Max. 50 N.m 66％ 74.4±0.5 570

HPS42 Series High Precision Planetary Gearbox For 42BL/BLS BLDC Motor 

Model / JK-HPS42-L1 JK-HPS42-L2 JK-HPS42-L1SW JK-HPS42-L2SW
Gear Ratio / 4 5 7 10 16 20 25 28 30 35 40 45 50 70 4 5 7 10 16 20 25 28 30 35 40 50 70
Gear Trains / 1 2 1 2
Gearbox Length mm 60 71 75 86
Rated Torque N.m 9 9 5 5 12 12 10 10 10 10 10 10 10 10 9 9 5 5 12 12 10 10 12 10 10 10 10
Sundden Stop Torque N.m 18 18 10 10 24 24 20 20 20 20 20 20 20 20 18 18 10 10 24 24 20 20 24 20 20 20 20
Back Lash arcmin ≤15 arcmin ≤20 arcmin ≤15 arcmin ≤20 arcmin
Efficiency % 96 94 96 94
Suitable Motor Dimension mm Φ5-10 / Φ22-2 / F31-M3 Φ5-24 / Φ22-2 / F31-M3
Rated Input Speed rpm 3000
Max Input Speed rpm 6000
Average Life Span h 20000
Axial Force N 100
Radial Force N 300
Noise dB ≤55
Protection Level IP IP54
Work Temp. ℃ -20 to + 150
Out Shaft Type / Key Shaft Type

HPR42 Series High Precision Planetary Gearbox For 42BL/BLS BLDC Motor 

Model / JK-HPR42-L1 JK-HPR42-L2 JK-HPR42-L1SW JK-HPR42-L2SW
Gear Ratio / 3 4 5 7 10 15 16 20 25 28 30 35 40 45 50 70 3 4 5 7 10 15 16 20 25 28 30 35 40 50 70
Gear Trains / 1 2 1 2
Gearbox Length mm 61.5 72.5 76.5 87.5
Rated Torque N.m 8 9 9 5 5 10 12 12 10 10 10 10 10 10 10 10 8 9 9 5 5 10 12 12 10 10 12 10 10 10 10
Sundden Stop Torque N.m 16 18 18 10 10 20 24 24 20 20 20 20 20 20 20 20 16 18 18 10 10 20 24 24 20 20 24 20 20 20 20
Back Lash arcmin ≤15 arcmin ≤20 arcmin ≤15 arcmin ≤20 arcmin
Efficiency % 96 94 96 94
Suitable Motor Dimension mm Φ5-10 / Φ22-2 / F31-M3 Φ5-24 / Φ22-2 / F31-M3
Rated Input Speed rpm 3000
Max Input Speed rpm 6000
Average Life Span h 20000
Axial Force N 100
Radial Force N 300
Noise dB ≤55
Protection Level IP IP54
Work Temp. ℃ -20 to + 150
Out Shaft Type / Key Shaft Type
Brushless DC motor

Nema23 57BLS series brushless DC motor

Brushless DC motor, power: 20W ~ 190W, rated voltage: 36V, rated speed: 4000rpm, rated torque: 0.055Nm ~ 0.44Nm
Optional parts: gearbox, brake, encoder, fan, integrated built-in drivers...
Brushless DC motor, power: 20W ~ 190W, rated voltage: 36V, rated speed: 4000rpm, rated torque: 0.055Nm ~ 0.44Nm
Optional parts: gearbox, brake, encoder, fan, integrated built-in drivers...
Model Phase Poles Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Body Length Rotor Inertia Driver Weight
Phase Poles Vdc Rpm Nm A W mm g.cm2 / Kg
BF57BLS005 3 8 36 4000 0.055 1.2 23 37 30 BFBLD300 0.33
BF57BLS01 3 8 36 4000 0.11 2.0 46 47 75 BFBLD300 0.44
BF57BLS02 3 8 36 4000 0.22 3.6 92 67 119 BFBLD300 0.75
BF57BLS03 3 8 36 4000 0.33 5.3 138 87 173 BFBLD300 1.0
BF57BLS04 3 8 36 4000 0.44 6.8 184 107 230 BFBLD300 1.25

56JXE300K Common Planetary Gearbox For 57BLS/BLF BLDC Motor

Feature of Gearbox:
Ring Material Bearing at output Max. Radial Load（N) Max.shaft axial load(N) Radial play of shaft(mm） Axial play of shaft（mm） Backlash at no-load（°） Shaft press fit force.max（N）
metal Ball bearing 300 200 ≤0.08 ≤0.4 ≤2.5 300
Pinion Specifications ：
Module No.of teeth Pressure angle Hole diameter Reduction Ratio
1 12 20 ° Φ6H7 1:4.25 / 1:15 / 1:18 / 1:52 / 1:61 / 1:72 / 1:96 / 1:121 / 1:220 / 1:260 / 1:307
15 1:3.6 / 1:13 / 1:43 / 1:154 / 1:187
9 1:5.33 / 1:28
Gearbox Specifications ：
Reduction Ratio Exact Reduction Ratio Rated tolerance torque Max momentary tolerance torque Eifficiency L(mm) Weight(g)
1:3.6 , 1:4.25 , 1/5.33 1:3.6 , 1:4.25 , 1:5.33 3.0 N.m Max. 9.0 N.m 90％ 37.8±0.5 489
1:13, 1:15, 1:18, 1:23, 1:28 1:12.96, 1:15.30, 1:18.06, 1:22.67, 1:28.44 12.0 N.m Max. 36 N.m 81％ 49.5±0.5 681
1:43, 1:52, 1:61, 1:72, 1:96, 1:121 1:42.69, 1:51.84, 1:61.20, 1:72.25, 1:96.33, 1:120.89 24.0 N.m Max. 72 N.m 73％ 60.8±0.5 871
1:154, 1:187, 1:220, 1:260, 1:307 1:153.69, 1:186.62, 1:220.32, 1:260.10, 1:307.06 30.0 N.m Max. 90 N.m 66％ 71.9±0.5 1066

56JXE450K Common Planetary Gearbox For 57BLS/BLF BLDC Motor

Feature of Gearbox:
Ring Material Bearing at output Max. Radial Load（N) Max.shaft axial load(N) Radial play of shaft(mm） Axial play of shaft（mm） Backlash at no-load（°） Shaft press fit force.max（N）
metal Ball bearing 400 120 ≤0.08 ≤0.4 ≤2.5 300
Pinion Specifications ：
Module No.of teeth Pressure angle Hole diameter Reduction Ratio
1 12 20 ° Φ6H7 1:4.25 / 1:15 / 1:18 / 1:52 / 1:61 / 1:72 / 1:96 / 1:121 / 1:220 / 1:260 / 1:307
15 1:3.6 / 1:13 / 1:43 / 1:154 / 1:187
9 1:5.33 / 1:28
Gearbox Specifications ：
Reduction Ratio Exact Reduction Ratio Rated tolerance torque Max momentary tolerance torque Eifficiency L(mm) Weight(g)
1:3.6 , 1:4.25 , 1/5.33 1:3.6 , 1:4.25 , 1:5.33 3.0 N.m Max. 9.0 N.m 90％ 37.8±0.5 489
1:13, 1:15, 1:18, 1:23, 1:28 1:12.96, 1:15.30, 1:18.06, 1:22.67, 1:28.44 12.0 N.m Max. 36 N.m 81％ 49.5±0.5 681
1:43, 1:52, 1:61, 1:72, 1:96, 1:121 1:42.69, 1:51.84, 1:61.20, 1:72.25, 1:96.33, 1:120.89 24.0 N.m Max. 72 N.m 73％ 60.8±0.5 871
1:154, 1:187, 1:220, 1:260, 1:307 1:153.69, 1:186.62, 1:220.32, 1:260.10, 1:307.06 30.0 N.m Max. 90 N.m 66％ 71.9±0.5 1066
crop_1720877185979

 Nema23 57BLF series brushless DC motor with High Precision Planetary Gearbox

Brushless DC motor, power: 20W ~ 190W, rated voltage: 36V, rated speed: 4000rpm, rated torque: 0.055Nm ~ 0.44Nm
Optional parts: gearbox, brake, encoder, fan, integrated built-in drivers...
Model Phase Poles Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Body Length Rotor Inertia Driver Weight
Phase Poles Vdc Rpm Nm A W mm g.cm2 / Kg
BF57BLF005 3 8 36 4000 0.055 1.2 23 37 30 BFBLD300 0.33
BF57BLF01 3 8 36 4000 0.11 2.0 46 47 75 BFBLD300 0.44
BF57BLF02 3 8 36 4000 0.22 3.6 92 67 119 BFBLD300 0.75
BF57BLF03 3 8 36 4000 0.33 5.3 138 87 173 BFBLD300 1.0
BF57BLF04 3 8 36 4000 0.44 6.8 184 107 230 BFBLD300 1.25

PLF60 Series High Precision Planetary Gearbox For 57BLS / 60BLS BLDC Motor

Model / l Stage ll Stage lll Stage
Gear Ratio / 3，4，5，7，10 12,15,16,20,25,28,35,40,50,70,100 64,80,100,120,125,140,175,200,250,280,350,400,500,700,1000
A B A B A B
Gearbox Length mm 42 110 59 127 76 144
Rated Input Speed rpm 4000 4000 4000
Max Input Speed rpm 8000 8000 8000
Maximum radial force N 320 320 320
Maximum axial force N 280 280 280
No-load torque Nm ≈0.6 ≈0.3 ≈0.3
Efficiency ％ 96 94 90
Backlash arcmin ≤10 ≤15 ≤18
Noise dB ≤58 ≤58 ≤58
Weight Kg 1.1 1.3 1.5
Working Lifetime h ＞20000（Continuous operating life halved）
Max Input Speed rpm 2.3
Lubrication Method / Long-term
Rotation Direction / Input/Output Syntropy
Protection Level IP IP65
Mounting Position / Arbitrarily
Ratio 3 4 5 7 10 12 15 16 20 25 28 35 40 50 70 100
Rated output torque 15 30 27 20 9 15 15 35 35 30 35 30 35 30 22 10
Max output torque 30 60 54 40 18 30 30 70 70 60 70 60 70 60 44 20
Rotor Inertia 0.13 0.093 0.078 0.072 0.064 0.135 0.13 0.088 0.075 0.075 0.07 0.064 0.076 0.064 0.075 0.076
Ratio 64 80 100 120 125 140 175 200 250 280 350 400 500 700 1000 /
Rated output torque 15 30 27 20 9 15 15 35 35 30 35 30 35 30 22 /
Max output torque 30 60 54 40 18 30 30 70 70 60 70 60 70 60 44 /
Rotor Inertia 0.13 0.093 0.078 0.072 0.064 0.135 0.13 0.088 0.075 0.075 0.07 0.064 0.076 0.064 0.075 /
Brushless motor 48v

Nema24 60BLS series brushless DC motor with High Precision Planetary Gearbox

Brushless DC motor, power: 94W~377W, rated voltage: 48V, rated speed: 3000rpm, rated torque: 0.3Nm ~ 1.2Nm
Optional parts: gearbox, brake, encoder, fan, integrated built-in drivers...
Model Phase Poles Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Body Length Rotor Inertia Driver Weight
Phase Poles Vdc Rpm Nm A W mm kg.cm2 / Kg
BF60BLS01 3 8 48 3000 0.3 2.8 94 78 0.24 BFBLD300 0.85
BF60BLS02 3 8 48 3000 0.6 5.2 188 99 0.48 BFBLD300 1.25
BF60BLS03 3 8 48 3000 0.9 7.5 283 120 0.72 BFBLD750 1.65
BF60BLS04 3 8 48 3000 1.2 9.5 377 141 0.96 BFBLD750 2.05

PLF60 Series High Precision Planetary Gearbox For 57BLS / 60BLS BLDC Motor

Model / l Stage ll Stage lll Stage
Gear Ratio / 3，4，5，7，10 12,15,16,20,25,28,35,40,50,70,100 64,80,100,120,125,140,175,200,250,280,350,400,500,700,1000
A B A B A B
Gearbox Length mm 42 110 59 127 76 144
Rated Input Speed rpm 4000 4000 4000
Max Input Speed rpm 8000 8000 8000
Maximum radial force N 320 320 320
Maximum axial force N 280 280 280
No-load torque Nm ≈0.6 ≈0.3 ≈0.3
Efficiency ％ 96 94 90
Backlash arcmin ≤10 ≤15 ≤18
Noise dB ≤58 ≤58 ≤58
Weight Kg 1.1 1.3 1.5
Working Lifetime h ＞20000（Continuous operating life halved）
Max Input Speed rpm 2.3
Lubrication Method / Long-term
Rotation Direction / Input/Output Syntropy
Protection Level IP IP65
Mounting Position / Arbitrarily
Ratio 3 4 5 7 10 12 15 16 20 25 28 35 40 50 70 100
Rated output torque 15 30 27 20 9 15 15 35 35 30 35 30 35 30 22 10
Max output torque 30 60 54 40 18 30 30 70 70 60 70 60 70 60 44 20
Rotor Inertia 0.13 0.093 0.078 0.072 0.064 0.135 0.13 0.088 0.075 0.075 0.07 0.064 0.076 0.064 0.075 0.076
Ratio 64 80 100 120 125 140 175 200 250 280 350 400 500 700 1000 /
Rated output torque 15 30 27 20 9 15 15 35 35 30 35 30 35 30 22 /
Max output torque 30 60 54 40 18 30 30 70 70 60 70 60 70 60 44 /
Rotor Inertia 0.13 0.093 0.078 0.072 0.064 0.135 0.13 0.088 0.075 0.075 0.07 0.064 0.076 0.064 0.075 /
crop_1721973716366

 80BLS series brushless DC motor with High Precision Planetary Gearbox

Brushless DC motor, power: 110W~440W, rated voltage: 48V, rated speed: 3000rpm, rated torque: 0.35Nm ~ 1.4Nm
Optional parts: gearbox, brake, encoder, fan, integrated built-in drivers...
Model Phase Poles Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Body Length Rotor Inertia Driver Weight
Phase Poles Vdc Rpm Nm A W mm kg.cm2 / Kg
BF80BLS01 3 8 48 3000 0.35 3 110 78 0.21 BFBLD750 1.4
BF80BLS02 3 8 48 3000 0.7 5.5 220 98 0.42 BFBLD750 2
BF80BLS03 3 8 48 3000 1.05 8 330 118 0.63 BFBLD750 2.6
BF80BLS04 3 8 48 3000 1.4 10.5 40 138 0.84 BFBLD750 3.2

80PMB800K Common Planetary Gearbox For 80BLS BLDC Motor

Feature of Gearbox:
Ring Material Bearing at output Max. Radial Load（N) Max.shaft axial load(N) Radial play of shaft(mm） Axial play of shaft（mm） Backlash at no-load（°） Shaft press fit force.max（N）
metal Ball bearing 600 200 ≤0.08 ≤0.4 ≤2.5 1000
Pinion Specifications ：
Module No.of teeth Pressure angle Hole diameter Reduction Ratio
1 12 20 ° 10 teeth pinion 1:6.6 / 1:23/ 1:26 / 1:37 / 1:92 / 1:138 
13 Φ7H7 1:5.31 / 1:19/ 1:30 / 1:74 / 1:111
22 Φ8H7 1:3.55 / 1:13 / 1:50
Gearbox Specifications ：
Reduction Ratio Exact Reduction Ratio Rated tolerance torque Max momentary tolerance torque Eifficiency L(mm) Weight(g)
1:3.55 , 1:5.31 , 1/6.6 1:3.55 , 1:5.31 , 1:6.6 8.0 N.m Max. 12.0 N.m 90％ 55.7±0.5 1100
1:13, 1:19, 1:23 1:12.57, 1:18.82, 1:23.4 30.0 N.m Max. 45 N.m 81％ 72.2±0.5 1500
1:26, 1:30, 1:37 1:26.05, 1:30.08, 1:37.4 60.0 N.m Max. 90 N.m 73％ 72.2±0.5 1500
1:50, 1:74, 1:92, 1:111, 1:138 1:49.62, 1:74.28, 1:92.37, 1:111.2, 1:138.28 80.0 N.m Max. 120 N.m 66％ 88.5±0.5 1880

PLF80 High Precision Planetary Gearbox For 80BLS BLDC Motor

Model / l Stage ll Stage
Gear Ratio / 3，4，5，7，10 12,15,16,20,25,28,35,40,50,70,100
A A
Gearbox Length mm 141.5 166.5
Rated Input Speed rpm 3500 3500
Max Input Speed rpm 6000 6000
Maximum radial force N 550 550
Maximum axial force N 500 500
No-load torque Nm ≈0.8 ≈0.4
Efficiency ％ 96 94
Backlash arcmin ≤10 ≤15
Noise dB ≤62 ≤62
Weight Kg 3.0 3.6
Working Lifetime h ＞20000（Continuous operating life halved）
Max Input Speed rpm 7.5
Lubrication Method / Long-term
Rotation Direction / Input/Output Syntropy
Protection Level IP IP65
Mounting Position / Arbitrarily
Ratio 3 4 5 7 10 12 15 16 20 25 28 35 40 50 70 100
Rated output torque 55 90 95 64 40 60 60 95 95 100 95 100 95 100 70 45
Max output torque 110 180 190 128 80 120 120 190 190 200 190 200 190 200 140 90
Rotor Inertia 0.77 0.52 0.45 0.40 0.39 0.67 0.67 0.50 0.44 0.44 0.39 0.44 0.39 0.42 0.44 0.44
Brushless motor 48v

86BLS series brushless DC motor with High Precision Planetary Gearbox

Brushless DC motor, power: 110W~660W, rated voltage: 48V, rated speed: 3000rpm, rated torque: 0.35Nm ~ 2.1Nm
Optional parts: gearbox, brake, encoder, fan, integrated built-in drivers...
model Phase Poles Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Body Length Rotor Inertia Driver Weight
Phase Poles Vdc Rpm Nm A W mm kg.cm2 / Kg
BF86BLS58-X002 3 8 48 3000 0.35 3 110 71 0.4 BFBLD750 1.5
BF86BLS71-X001 3 8 48 3000 0.7 6.3 220 84.5 0.8 BFBLD750 1.9
BF86BLS84 3 8 48 3000 1.05 9 330 98 1.2 BFBLD750 2.3
BF86BLS98-X015 3 8 48 3000 1.56 11.5 440 111.5 1.6 BFBLD750 2.7
BF86BLS125-X015 3 8 48 3000 2.1 18 660 138.5 2.4 BFBLD750 4

PLF80 High Precision Planetary Gearbox For 80BLS BLDC Motor

Model / l Stage ll Stage
Gear Ratio / 3，4，5，7，10 12,15,16,20,25,28,35,40,50,70,100
A A
Gearbox Length mm 141.5 166.5
Rated Input Speed rpm 3500 3500
Max Input Speed rpm 6000 6000
Maximum radial force N 550 550
Maximum axial force N 500 500
No-load torque Nm ≈0.8 ≈0.4
Efficiency ％ 96 94
Backlash arcmin ≤10 ≤15
Noise dB ≤62 ≤62
Weight Kg 3.0 3.6
Working Lifetime h ＞20000（Continuous operating life halved）
Max Input Speed rpm 7.5
Lubrication Method / Long-term
Rotation Direction / Input/Output Syntropy
Protection Level IP IP65
Mounting Position / Arbitrarily
Ratio 3 4 5 7 10 12 15 16 20 25 28 35 40 50 70 100
Rated output torque 55 90 95 64 40 60 60 95 95 100 95 100 95 100 70 45
Max output torque 110 180 190 128 80 120 120 190 190 200 190 200 190 200 140 90
Rotor Inertia 0.77 0.52 0.45 0.40 0.39 0.67 0.67 0.50 0.44 0.44 0.39 0.44 0.39 0.42 0.44 0.44
Brushless motor 310v

110BLS series brushless DC motor

Brushless DC motor, power: 518W~2073W, rated voltage: 310V, rated speed: 3000rpm, rated torque: 1.65Nm ~ 6.6Nm
Optional parts: gearbox, brake, encoder, fan, integrated built-in drivers...
model Phase Poles Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Body Length Driver Weight
Phase Poles Vdc Rpm Nm A KW mm / Kg
BF110BLS50 3 8 310 3000 2.38 2.7 0.75 134 BFBLD1100 3.3
BF110BLS75 3 8 310 3000 3.3 3.7 1.03 159 BFBLD2200 4.5
BF110BLS100 3 8 310 3000 5 5.6 1.57 184 BFBLD2200 5.8
BF110BLS125 3 8 310 3000 6.6 7.5 2.07 209 BFBLD2200 7.0

PLF120 Series High Precision Planetary Gearbox For 110BLS BLDC Motor

Model / l Stage ll Stage lll Stage
Gear Ratio / 3，4，5，7，10 12,15,16,20,25,28,35,40,50,70,100 64,80,100,120,125,140,175,200,250,280,350,400,500,700,1000
A B A B A B
Gearbox Length mm 86 212 118 244 150 276
Rated Input Speed rpm 3500 3500 3500
Max Input Speed rpm 6000 6000 6000
Maximum radial force N 1600 1600 1600
Maximum axial force N 1350 1350 1350
No-load torque Nm ≈1.3 ≈0.6 ≈0.6
Efficiency ％ 96 94 90
Backlash arcmin ≤10 ≤15 ≤18
Noise dB ≤65 ≤65 ≤65
Weight Kg 8.0 9.0 10.0
Working Lifetime h ＞20000（Continuous operating life halved）
Max Input Speed rpm 15
Lubrication Method / Long-term
Rotation Direction / Input/Output Syntropy
Protection Level IP IP65
Mounting Position / Arbitrarily

BLDC motors are composed of three primary parts:

  1. Rotor: The rotating part, typically embedded with permanent magnets.
  2. Stator: The stationary part that contains the motor windings.
  3. Electronic Controller: Manages the commutation by switching current direction in the stator windings.
 

Types of Brushless DC Motors

Brushless DC motors can be categorized based on their construction and commutation methods:

1. Inner Rotor BLDC Motors

In this design, the rotor is located inside the stator. Inner rotor motors are known for their high torque and are commonly used in industrial applications.

2. Outer Rotor BLDC Motors

Here, the rotor is positioned outside the stator, resulting in a compact design with high inertia. These are popular in applications like drones and small appliances.

3. Sensor-Based BLDC Motors

Equipped with sensors (e.g., Hall-effect sensors), these motors provide precise feedback on rotor position, ensuring accurate control.

4. Sensorless BLDC Motors

Sensorless motors rely on back-EMF (Electromotive Force) to determine rotor position. They are more affordable and used in cost-sensitive applications like fans and pumps.

 

How Does a Brushless DC Motor Work?

The operation of a brushless DC motor is based on the interaction between the magnetic field of the stator windings and the permanent magnets of the rotor. Unlike brushed motors, where brushes physically transfer electricity to the rotor, BLDC motors rely on an electronic controller to generate a rotating magnetic field.

 

Steps in BLDC Motor Operation:

  1. Electronic Commutation: The controller alternates current flow between different windings, creating a rotating magnetic field.
  2. Rotor Alignment: The magnetic field of the rotor aligns with the stator's magnetic field, causing rotation.
  3. Sensor Feedback: Sensors such as Hall-effect sensors detect rotor position, ensuring precise commutation.

This seamless process ensures higher efficiency and reduced wear, making BLDC motors ideal for demanding applications.

 

BesFoc Brushless DC Motors has the following main advantages:

(1) With good mechanical characteristics and regulating characteristics, can replace the DC brush motor speed regulation, frequency conversion motor speed regulation, induction motor plus reducer speed regulation. 
(2) Can run at low speed and high power, save the reducer, and directly drive the large load. 
(3) It has many advantages of the traditional DC brush motor, but also eliminates the brush and collector ring structure. 
(4) Excellent torque performance, medium, and low-speed torque performance start torque is large, start current is small. 
(5) Step-less speed regulation, wide speed range, strong overload capacity. 
(6) Small volume, light weight, large output. 
(7) Soft start, soft stop, and good braking characteristics can leave out the original mechanical or electromagnetic device. 
(8) The motor itself has no excitation loss and brush loss, high efficiency, and a good comprehensive power-saving effect. 
(9) High reliability, good stability, strong adaptability, and simple repair and maintenance. 
(10) Vibration resistance, low noise, small vibration, smooth operation, and long life. 
(11) No spark, especially suitable for public places, anti-interference, good safety performance.

 

Brushless dc motor application:

1. Automotive Industry

2. Consumer Electronics

3. Industrial Automation

4. Medical Devices

5. Aerospace and Drones

 

Key Considerations When Choosing a BLDC Motor

When selecting a brushless DC motor for a specific application, it is essential to evaluate the following factors:

Torque and Speed Requirements

Power Efficiency

Size and Weight Constraints

Environmental Conditions

Cost vs. Performance

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