SURPASS HOBBY F540 4370KV Brushless Motor Waterproof 45A ESC ( #: RM12050 )

The F540 4370KV sensorless motor comes with brushless 45A ESC. The high performance F540 4370KV waterproof brushless motor is designed to provide both quality and performance at an affordable price. Waterproof function motor let your car challenge the muddy road. It is built from high quality aluminum alloy which is produced from the latest CNC milling machines, and is designed with high power and rotation speed to provide longer run time for 1/10 RC car truck.

Features:
4 pole 12 slot high-torque motor design.
CNC machined 6061 T6 billet aluminum heatsink can.
3.175mm shaft diameter.
High purity copper windings maximizes efficiency.
Precision engineered for maximum energy conversion.
Precision balanced rotor, smoothness for best reliability and maximum RPM.
More economical to make a combination sell of motor and ESC, customers no need to choose them separately.
Suit for 1/10 scale RC car.

Specifications:
Motor Specifications:
Brand name: SURPASS
Watts: 820W
Max voltage: <12V
Max amps: 66A
KV(RPM/Volt): 4370KV
Max RPM: 50000
Diameter: 36mm
Length: 50mm
Shaft length: 15mm
Shaft diameter: 3.175mm
Connector: 4mm gold

ESC Specifications:
Item name: Waterproof ESC
Continue current: 45A
Burst current: 240A
Battery: 2-3S Lipo / 4-9S NiMH
BEC output: 5.8V / 3A
Power supply plugs: T plug male

Package Information:
Package size: 14.5 * 8.6 * 5.3cm / 5.71 * 3.38 * 2.09in
Package weight: 295g 
Gift box package

Package List:
1 * 4370KV motor
1 * 45A ESC
2 * User manual