1900 SERIES BRUSHLESS INRUNNER MOTORS

Custom environmentally sealed 19xx series motor with optional fins provides power for production UAV project.

1917 with internal cooling fan.

1900 SERIES BLDC MOTORS QUICK LOOK:

High diameter to length bias achieves the high torque advantages of an outrunner with the mounting and operational advantages of a non-rotating enclosure.

51mm OD
Inrunner construction
600W to 7,000W depending on length
High speed operation – 35,000 RPM
8 poles / 24 slots
US component sourcing and assembly available

OPTIONS:

5,6 or 8mm shafts
Finned case
Waterproof case
Internal fan for better cooling
Stator can be skewed for reduced cogging and acoustic signature

May be mated with P32 gearboxes for very high power-to-weight drives.

1900 SERIES LENGTHS & POWER RANGES:

Length

Continuous
Watts*

300

600

900

1,200

1,500

1,800

2,100

2,500

3,000

3,500

Max
Watts*

600

1,200

1,800

2,400

3,000

3,600

4,200

5,000

6,000

7,000

Physical
Length
(no fan)

39mm

44.65mm

51mm

57.5mm

64mm

70.2mm

82.9mm

93mm

108.5mm

No Fan /
FINNED

57.5mm

72.2mm

78.5mm

85.5mm

100.5mm

FAN /
FINNED

57.5mm

72.2mm

78.5mm

85.5mm

90.5mm

100.5mm

Weight

124.5g

181g

235g

283g

340g

396g

453g

510g

623g

792g

See the tables below for kv and torque particulars.

PDF DATASHEET

CAD FILES

1902: 300-600 watt class BLDC motors

Price: $ 186.00 + options each. Volume discount available.


Motor	RPMs per Volt (KV)	Rm (Ohms)	Io @ 10V	Torque Constant (mNm/A)	Torque Constant (inOz/A)	Max Volts	Max Amps
1902/4Y	1,000	0.09	0.60	9.568	1.355	35	17
1902/3.5Y	1,175	0.063	0.50	8.143	1.153	30	20
1902/3Y	1,350	0.048	0.70	7.088	1.004	26	23
1902/2.5Y	1,650	0.032	1.00	5.799	0.821	21	28
1902/2Y	2,035	0.023	1.30	4.702	0.666	17	35
1902/1.5Y	2,800	0.012	1.70	3.417	0.484	13	48

1905: 600-1,200 watt class BLDC motors

Price: $ 230.00 + options each. Volume discount available.


Motor	RPMs per Volt (KV)	Rm (Ohms)	Io @ 10V	Torque Constant (mNm/A)	Torque Constant (inOz/A)	Max Volts	Max Amps
1905/3Y	720	0.07	0.60	13.289	1.882	49	25
1905/2.5Y	865	0.035	0.70	11.062	1.566	40	30
1905/2Y	1,025	0.025	0.90	9.335	1.322	34	35
1905/1.5Y	1,350	0.019	1.40	7.088	1.004	26	46
1905/1Y	2,060	0.008	2.10	4.645	0.658	17	71

1907: 900-1,800 watt class BLDC motors

Price: $ 274.00 + options each. Volume discount available.


Motor	RPMs per Volt (KV)	Rm (Ohms)	Io @ 10V	Torque Constant (mNm/A)	Torque Constant (inOz/A)	Max Volts	Max Amps
1907/3Y	480	0.075	0.50	19.934	2.823	73	25
1907/2.5Y	580	0.04	0.70	16.497	2.336	60	30
1907/2Y	675	0.03	0.70	14.175	2.007	52	35
1907/1.5Y	915	0.019	1.10	10.457	1.481	38	47
1907/1Y	1,400	0.012	1.40	6.835	0.968	25	72

1910: 1,200-2,400 watt class BLDC motors

Price: $ 329.00 + options each. Volume discount available.


Motor	RPMs per Volt (KV)	Rm (Ohms)	Io @ 10V	Torque Constant (mNm/A)	Torque Constant (inOz/A)	Max Volts	Max Amps
1910/3Y	360	0.088	0.50	26.579	3.764	97	25
1910/2.5Y	432	0.061	0.70	22.149	3.137	81	30
1910/2Y	520	0.082	0.60	18.401	2.606	67	36
1910/1.5Y	680	0.02	0.08	14.071	1.993	51	47
1910/1Y	1,050	0.0098	1.70	9.113	1.29	33	72

1912: 1,500-3,000 watt class BLDC motors

Price: $ 362.00 + options each. Volume discount available.


Motor	RPMs per Volt (KV)	Rm (Ohms)	Io @ 10V	Torque Constant (mNm/A)	Torque Constant (inOz/A)	Max Volts	Max Amps
1912/3Y	270	0.095	0.50	35.439	5.019	130	23
1912/2.5Y	324	0.0163	0.58	29.532	4.182	108	28
1912/2Y	405	0.042	0.70	23.626	3.346	86	35
1912/1.5Y	532	0.027	0.90	17.986	2.547	66	46
1912/1Y	825	0.011	1.50	11.598	1.642	42	71

1915: 1,800-3,700 watt class BLDC motors

Price: $ 428.00 + options each. Volume discount available.


Motor	RPMs per Volt (KV)	Rm (Ohms)	Io @ 10V	Torque Constant (mNm/A)	Torque Constant (inOz/A)	Max Volts	Max Amps
1915/3Y	225	0.1	0.34	42.526	6.022	156	23
1915/2.5Y	270	0.07	0.50	35.439	5.019	130	28
1915/2Y	360	0.05	0.60	26.579	3.764	97	37
1915/1.5Y	450	0.027	0.80	21.263	3.011	78	46
1915/1Y	684	0.012	1.50	13.989	1.981	51	70

1917: 2,100-4,200 watt class BLDC motors

Price: $ 439.00 + options each. Volume discount available.


Motor	RPMs per Volt (KV)	Rm (Ohms)	Io @ 10V	Torque Constant (mNm/A)	Torque Constant (inOz/A)	Max Volts	Max Amps
1917/3Y	200	0.135	0.30	47.842	6.775	175	23
1917/2.5Y	240	0.094	0.50	39.868	5.646	146	28
1917/2Y	300	0.06	0.60	31.895	4.517	117	35
1917/1.5Y	400	0.032	1.10	23.921	3.388	88	47
1917/1Y	590	0.015	2.40	16.218	2.297	59	69

1920: 2,500-5,000 watt class BLDC motors

Price: $ 450.00 + options each. Volume discount available.


Motor	RPMs per Volt (KV)	Rm (Ohms)	Io @ 10V	Torque Constant (mNm/A)	Torque Constant (inOz/A)	Max Volts	Max Amps
1920/3Y	170	0.141	0.50	56.285	7.971	206	24
1920/2.5Y	200	0.098	0.60	47.842	6.775	175	29
1920/2Y	255	0.063	0.80	37.523	5.314	137	36
1920/1.5Y	340	0.035	1.10	28.142	3.985	103	49
1920/1Y	510	0.016	1.00	18.762	2.657	69	73

1924: 3,000-6,000 watt class BLDC motors

Price: $ 494.00 + options each. Volume discount available.


Motor	RPMs per Volt (KV)	Rm (Ohms)	Io @ 10V	Torque Constant (mNm/A)	Torque Constant (inOz/A)	Max Volts	Max Amps
1924/3Y	136	0.165	0.50	70.356	9.963	257	23
1924/2.5Y	165	0.114	0.60	57.99	8.212	212	28
1924/2Y	200	0.073	0.80	47.842	6.775	175	34
1924/1.5Y	275	0.035	1.00	34.794	4.927	127	47
1924/1Y	400	0.018	1.50	23.921	3.388	88	69

1930: 3,500-7,000 watt class BLDC motors

Price: each. Volume discount available.


Motor	RPMs per Volt (KV)	Rm (Ohms)	Io @ 10V	Torque Constant (mNm/A)	Torque Constant (inOz/A)	Max Volts	Max Amps
1930/3Y	112	0.2	0.5	85.432	12.098	312	22
1930/2.5Y	135	0.14	0.6	70.877	10.037	260	27
1930/2Y	180	0.1	0.9	53.158	7.528	194	36
1930/1.5Y	225	0.054	1.1	42.526	6.022	155	45
1930/1Y	342	0.024	1.6	27.978	3.962	102	68

19 series options and prices


Option	Price	Notes
1907 - 15 high cooling	$50.00	includes finned case and fan

6 & 8mm shaft for 1912 and larger	$15.00	for longer version-5mm standard

P32 gear box 6.7	$175.00	includes adapter plate
P42 gear box 6.7	$295.00	includes adapter plate

Hall sensor board	$85.00



LEAD TIME

Neutronics assembles motors to order. Most motors in this series are ready to ship from our San Diego office within 3-6 weeks. Lead time varies with quantity, customizations, and supply chain considerations. Rush orders may be available.

Please email us to confirm delivery estimates for your motor needs. info@neutronics.com

MOTOR KV:

The motor sizes and KVs listed above are the most common for this particular motor range. Custom sizes and KV (RPMs per volt) are usually available. Please contact us for more details if you don't immediately see the solution you are seeking in the tables above.

KV is the term used in the brushless motor workspace to specify the number of rotations per minute that a motor will turn for each volt applied to the motor/ESC with no load on the motor.

Neutronics specifications are +/- 5%.

For a more complete discussion of KV, please go to our KV FAQ page.

POWER RATINGS (Watts):

Continuous rating is the power the motor can deliver while maintaining the external housing temperatures below 100C.
MAX power is achieved at max RPMs and voltage, not at a partial throttle or reduced voltage.
MAX power rating is the power the motor can deliver beginning with motor at a temp of 20C until it reaches it's limit temperature of 100C.
The ratings are therefore dependent on a number of variables including air flow, ambient air temperature, contact cooling etc. Each application will present different variables.

MTBF RATINGS:

When used within the constraints described above, BLDC motors' primary "wear" item(s) are the bearings supporting the shaft. Bearing life is inversely affected by speed, temperature, and radial and axial loads. While an MTBF figure can be generated, it would be rendered invalid by excursions beyond prescribed temperatures or load limits - such as prop strikes, or side loads. MTBF must be determined on a case by case basis, and even then, it would be subject to numerous exceptions.

MAX VOLTAGE

Limited by kv (RPMs per volt) times the applied voltage. Max voltage must be kept below the voltage which will spin the motor over max rpm for the motor series.

MAX AMPERAGE

See power ratings above.

COMPONENT SPECIFICATIONS

Winding temperature: -- 180C
Magnet grade: - 180C UH grade
Bearings: Japanese SPB bearings

1900 SERIES BRUSHLESS INRUNNER MOTORS

1900 SERIES BLDC MOTORS QUICK LOOK:

OPTIONS:

1900 SERIES LENGTHS & POWER RANGES:

Length

Continuous Watts*

MaxWatts*

PhysicalLength (no fan)

No Fan / FINNED

FAN / FINNED

Weight

1902: 300-600 watt class BLDC motors

1905: 600-1,200 watt class BLDC motors

1907: 900-1,800 watt class BLDC motors

1910: 1,200-2,400 watt class BLDC motors

1912: 1,500-3,000 watt class BLDC motors

1915: 1,800-3,700 watt class BLDC motors

1917: 2,100-4,200 watt class BLDC motors

1920: 2,500-5,000 watt class BLDC motors

1924: 3,000-6,000 watt class BLDC motors

1930: 3,500-7,000 watt class BLDC motors

19 series options and prices

LEAD TIME

MOTOR KV:

POWER RATINGS (Watts):

MTBF RATINGS:

MAX VOLTAGE

MAX AMPERAGE

COMPONENT SPECIFICATIONS

Continuous
Watts*

Max
Watts*

Physical
Length
(no fan)

No Fan /
FINNED

FAN /
FINNED