NewBeeDrone FLOW 1408

What you get

• 609 g on 4S

  The 4150KV pulls 609 g at full throttle on a GF3052 at 16 V, drawing 36.03 A.

  Source: NewBeeDrone 4150KV spec sheet

• 516 g on 6S

  The 2350KV pulls 516 g at 8.84 A on a GF3028 three-blade at 24 V.

  Source: NewBeeDrone 2350KV spec sheet

• N48SH magnets, NSK bearings

  N48SH magnets, a stator of 0.2 mm silicon steel sheets and NSK MR52 ball bearings.

  Source: NewBeeDrone 4150KV page

• T-mount

  Sold with a T-mount prop fitting: a 1.5 mm shaft and two M2 holes in the top.

  Source: NewBeeDrone 4150KV page, NewBeeDrone 4150KV spec sheet

What to pair it with

Our reading of NewBeeDrone’s numbers, so your build matches what the motor was tested with.

ESC

NewBeeDrone calls for a 40 A ESC for the 4150KV, which peaked at 36.03 A on its bench, and 15 A for the 2350KV (8.84 A). (NewBeeDrone 4150KV spec sheet, NewBeeDrone 2350KV spec sheet)

Props

Tested on Gemfan 3-inch props: the GF3052 (4150KV) and the GF3028 three-blade (2350KV); T-mount fitting. (NewBeeDrone 4150KV spec sheet, NewBeeDrone 2350KV spec sheet, NewBeeDrone 4150KV page)

Battery

4S for the 4150KV, 6S for the 2350KV. (NewBeeDrone 4150KV spec sheet, NewBeeDrone 2350KV spec sheet)

Frame

Four M2 screws on a 12 mm circle; four screws come with each motor. (NewBeeDrone 4150KV spec sheet, NewBeeDrone product photos)

Where to buy

• NewBeeDronethe maker's store; 4150KV, 1 motor ($54.99 for 4, $99.99 for 8); sold out when checked
  $14.99seen Oct 19, 2026
  Visit
• NewBeeDronethe maker's store; 2350KV, 1 motor ($54.99 for 4, $99.99 for 8); sold out when checked
  $14.99seen Oct 19, 2026
  Visit

Plain links, not affiliate links. Prices change; the store’s page has the current one.

Full specs

Bench data

Redrawn from NewBeeDrone’s test reports. Thrust is static pull on a bench, more than you get in flight. Power is volts × amps; efficiency is thrust divided by power.

Inside the motor

A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:

• Bell. Gunmetal grey, with six spokes on the top. (NewBeeDrone product photos)
• Magnets. N48SH magnets. (NewBeeDrone 4150KV page)
• Stator. 14 mm across and 8 mm tall with 9 slots, stacked from 0.2 mm silicon steel sheets; 12 magnet poles. (NewBeeDrone 4150KV spec sheet, NewBeeDrone 4150KV page)
• Bearings. NSK MR52 ball bearings. (NewBeeDrone 4150KV page)
• Shaft. 1.5 mm, standing 3.9 mm above the bell, with two M2 holes on a 5 mm circle in the top for T-mount props. (NewBeeDrone 4150KV spec sheet)
• Leads. 24 AWG silicone wires, 80 mm long, by the spec sheets (the product pages say 20 AWG). (NewBeeDrone 4150KV spec sheet, NewBeeDrone 4150KV page)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 4150KV version reaches about these speeds; a prop loads the motor and brings it down, typically to around 70–75% of these figures at full throttle.

A 12-pole rotor has 6 pole pairs, so every turn of the shaft is 6 electrical cycles, and a six-step ESC switches the phases 36 times per turn.

About the 3D model

A generic outrunner drawn from NewBeeDrone’s published sizes: the 14 × 8 mm stator, 19 mm bell, 16.8 mm height, 1.5 mm shaft, 12 mm mounting circle and 9 teeth and 12 magnets. Anything NewBeeDrone doesn’t publish is typical for a motor this size, and the bell’s spoked top, the base and the inside are a generic design, not this motor’s. The colours are read off the maker’s product photos. There are no logos or markings: it is our drawing, not the maker’s.

Sources

1. NewBeeDrone: FLOW 1408 Racing and Freestyle FPV Micro Motor 4150KV - T Mount (product page on NewBeeDrone's own store). Retrieved Oct 19, 2026.
2. NewBeeDrone: FLOW 1408 Racing and Freestyle FPV Micro Motor 2350KV - T Mount (product page on NewBeeDrone's own store; the same spec list). Retrieved Oct 19, 2026.
3. NewBeeDrone: FLOW 1408 4150KV spec sheet (specification, outline drawing and load performance; image on the 4150KV page). The bench table is by throttle at 16 V on a GF3052 (the spec list names the GF3028 3B); its throttle column is headed "(V)" but steps 20 to 100.. Retrieved Oct 19, 2026.
4. NewBeeDrone: FLOW 1408 2350KV spec sheet (specification, outline drawing and load performance; image on the 2350KV page). The bench table steps by current at 24 V on a GF3028 three-blade, and its last row matches the sheet's maximum current (8.84 A) and power (212.25 W). Its first row is left out (see modelNotes).. Retrieved Oct 19, 2026.
5. NewBeeDrone: FLOW 1408 product photos (side, top and bottom views, box contents), used for finish and spoke count. Retrieved Oct 19, 2026.