2000 SERIES BRUSHLESS INRUNNER MOTORS

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

20xx with optional internal cooling fan.

2000 SERIES INRUNNER 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
Max rpm – 40k rpm
Optimized for 15k-40k rpm
6 poles / 18 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 P42 gearboxes for very high power-to-weight drives.

2000 SERIES LENGTHS & POWER RANGES:

Length

Continuous
Watts*

Max
Watts*

Physical
Length
(no fan)

No Fan /
FINNED

FAN /
FINNED

Weight

2020

3,500

7,000

93mm

100.5mm

660g

See the tables below for kv and torque particulars.

PDF DATASHEET

CAD FILES

2020: 3,500-7,000 watt class BLDC motors


Motor	RPMs per Volt (KV)	Rm (Ohms)	Io @ 10V	Torque Constant (mNm/A)	Torque Constant (inOz/A)	Max Volts	Max Amps
2020/6D/233	232	0.084	0.840	41.24	5.84	172	7
2020/5.75D/243	243	0.077	0.877	39.38	5.58	165	13
2020/5.5D/254	254	0.071	0.916	37.67	5.34	157	14
2020/3Y/258	258	0.063	0.933	37.09	5.25	155	22
2020/5.25D/266	266	0.064	0.960	35.97	5.09	150	26
2020/5D/279	279	0.058	1.008	34.30	4.86	143	29
2020/2.75Y/282	282	0.053	1.018	33.93	4.81	142	36
2020/4.75D/294	294	0.053	1.061	32.55	4.61	136	39
2020/4.5D/310	310	0.047	1.120	30.87	4.37	129	43
2020/2.5Y/310	310	0.044	1.120	30.87	4.37	129	50
2020/4.25D/328	328	0.042	1.186	29.17	4.13	122	52
2020/2.25Y/344	344	0.035	1.244	27.82	3.94	116	57
2020/4D/349	349	0.037	1.260	27.42	3.88	115	65
2020/3.75D/372	372	0.033	1.344	25.72	3.64	108	65
2020/2Y/388	388	0.028	1.400	24.66	3.49	103	72
2020/3.5D/399	399	0.029	1.440	23.98	3.40	100	77
2020/3.25D/429	429	0.025	1.551	22.30	3.16	93	79
2020/1.75Y/443	443	0.021	1.600	21.60	3.06	90	86
2020/3D/465	465	0.021	1.680	20.58	2.91	86	90
2020/2.75D/507	507	0.018	1.833	18.87	2.67	79	93
2020/1.5Y/517	517	0.016	1.867	18.51	2.62	77	100
2020/2.5D/558	558	0.015	2.016	17.15	2.43	72	103
2020/2.25D/620	620	0.012	2.240	15.43	2.19	65	108
2020/1.25Y/620	620	0.011	2.240	15.43	2.19	65	115
2020/2D/698	698	0.009	2.520	13.71	1.94	57	116
2020/1Y/775	775	0.007	2.800	12.35	1.75	52	122
2020/1.75D/797	797	0.007	2.880	12.01	1.70	50	129
2020/1.5D/930	930	0.005	3.360	10.29	1.46	43	129
2020/0.75Y/1033	1033	0.004	3.733	9.26	1.31	39	136
2020/1.25D/1116	1116	0.004	4.032	8.57	1.21	36	142
2020/1D/1395	1395	0.002	5.040	6.86	0.97	29	143
2020/0.5Y/1550	1550	0.002	5.600	6.17	0.87	26	151
2020/0.75D/1860	1860	0.001	6.720	5.14	0.73	22	155
2020/0.5D/2790	2790	0.001	10.080	3.43	0.49	14	158
2020/0.25Y/3100	3100	0.000	11.200	3.09	0.44	13	165
2020/0.25D/5580	5580	0.000	20.160	1.72	0.24	7	172

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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