• R3115 900KV Brushless Motor for 10 Inch FPV Drone Builds — 3–6S, 31×15 Stator, 112g, 37.5×33.6mm
  • R3115 900KV Brushless Motor for 10 Inch FPV Drone Builds — 3–6S, 31×15 Stator, 112g, 37.5×33.6mm
  • R3115 900KV Brushless Motor 3-6S 112g
  • R3115 900KV Brushless Motor, R3115 900KV brushless motor, 3-6S, 31x15 stator, 112g, 37.5x33.6mm, for 10-inch FPV drones.
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R3115 900KV Brushless Motor for 10 Inch FPV Drone Builds — 3–6S, 31×15 Stator, 112g, 37.5×33.6mm

R3115 900KV Brushless Motor for 10 Inch FPV Drone Builds — 3–6S, 31×15 Stator, 112g, 37.5×33.6mm

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$19.00 USD
$19.00 USD
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Overview

The R3115 900KV is a 3–6S brushless motor built around a 31×15 mm stator and a lightweight 112 g bell/rotor assembly. Factory test data (10.5″ prop, ~25–22 V input) show smooth RPM growth to 14,650 RPM and up to ~1.50 kW electrical input. It’s a solid choice for mid-to-large builds that need stable efficiency across the mid-throttle band.

Key Features

  • 31 mm stator diameter × 15 mm thickness (3115 class)

  • 900 KV winding; 3–6S LiPo operation

  • Low reference resistance: 60 mΩ

  • No-load current at 25.2 V: ≤ 2.5 A

  • Compact can (Ø37.5 mm) with short body length (33.6 mm)

  • Bench tested with a 10.5″ propeller across 20–100% throttle

  • Custom options available: color, laser engraving, KV, lead length

Specifications

Item Value
Stator Diameter 31
Stator Thickness 15
No. of Stator Arms 12
No. of Stator Poles 14
Motor KV 900
No-Load Current (25.2 V) ≤ 2.5 A
Motor Resistance 60 mΩ (Ref)
Weight 112 g ± 2 g
Outside Diameter 37.5 ± 0.2 mm
Body Length 33.6 ± 0.5 mm

Performance Bench Tests (10.5″ prop, ~25–22 V, lab ambient ~25–27 °C)

Throttle Voltage (V) Current (A) Thrust (gf) RPM Input Power (W) Motor Eff. (%)
20% 25.32 0.74 128 2,984 18.7 45.0
30% 25.20 3.25 469 5,293 81.9 58.2
40% 24.96 8.55 1,024 7,452 213.4 63.3
50% 24.50 18.25 1,781 9,547 447.1 65.7
60% 23.86 32.18 2,526 11,286 767.8 63.3
70% 23.12 47.34 3,178 12,599 1,094.5 62.0
80% 22.22 64.20 3,651 13,600 1,426.5 59.8
90% 22.10 66.20 3,870 14,000 1,463.0 58.4
100% 22.10 68.00 3,960 14,650 1,502.0 57.1

Notes: IR motor temperature during tests measured ~54–59 °C; thrust efficiency ranged from ~15.2 gf/W (low throttle) to ~4.0 gf/W (full throttle).

Customization & Notes

Motor color, laser engraving, KV value, and wire length can be customized. The same family includes 3110/3115 variants.

Details

R3115 900KV Brushless Motor, Motor for 10-inch FPV drone builds, 3-6S, 31x15 stator, 112g.

R3115 900KV Brushless Motor, Brushless motor for 10 inch FPV drone builds, compatible with 3-6S power source.

R3115 900KV Brushless Motor, A high-performance motor for 10-inch FPV drones, suitable for 3-6S use.

 

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