The Hobbywing XeRun AXE 4987SD 1600KV Black R3S is a high-power sensored brushless motor developed specifically for large-scale 1/5 and 1/6 RC crawlers. Designed to deliver massive torque together with exceptionally smooth low-speed control, the AXE 4987SD gives large and heavy crawler builds the precise power delivery required for demanding technical terrain.

Despite its high power output, the motor uses a compact 49.5mm diameter × 87mm long design. This allows it to fit into tighter large-scale crawler installations while delivering increased power and torque for demanding applications.

The AXE 4987SD is designed to pair with the Hobbywing XeRun AXE Plus R3 ESC. Together, the matched power system provides exceptionally smooth low-speed operation, strong low-end torque and precise throttle control for technical crawling.

A major feature of the 4987SD is its built-in high-precision magnetic encoder. Hobbywing states that the magnetic encoder provides 60 times higher position accuracy than conventional Hall sensors, supplying clean and consistent three-phase rotor position feedback for improved motor control. This technology helps deliver the ultra-smooth, zero-cogging response required when carefully navigating difficult obstacles.

The motor is rated IP66 for weather protection, allowing it to handle challenging trail environments including rain, snow, mud, sand and water.

Premium materials are used throughout the motor's construction. The high-hardness CNC-machined aluminium housing provides a strong and durable structure, while premium bearings support smooth operation. Internally, the motor uses 200°C heat-resistant enamelled wire, an alloy output shaft with high toughness, and ultra-thin premium silicon steel laminations.

For large-scale crawler enthusiasts who require serious torque without sacrificing precision at extremely low speeds, the Hobbywing XeRun AXE 4987SD provides a purpose-built solution.

Available from Campbelltown Hobbies, the Hobbywing XeRun AXE 4987SD 1600KV R3S is designed to give 1/5 and 1/6 scale crawlers the power, control and durability required for serious trail and technical crawling.

Required Items

• Hobbywing XeRun AXE Plus R3 ESC or Compatible ESC
• Suitable Battery
• Compatible Large-Scale RC Crawler
• Appropriate Motor Pinion / Gearing

Specifications

Brand: Hobbywing
Series: XeRun AXE
Model: 4987SD R3S
KV Rating: 1600KV
Motor Type: Sensored Brushless
Application: Large-Scale RC Crawlers
Recommended Scale: 1/5 & 1/6
Motor Diameter: 49.5mm
Motor Length: 87mm
Position Sensor: Built-In High-Precision Magnetic Encoder
Encoder Accuracy: Up to 60× Higher Position Accuracy Than Conventional Hall Sensors
Low-Speed Operation: Zero Cogging
Weather Protection: IP66
Motor Housing: High-Hardness CNC-Machined Aluminium
Motor Bearings: Premium High-Quality Bearings
Motor Wire: 200°C Heat-Resistant Enamelled Wire
Output Shaft: High-Toughness Alloy
Laminations: Ultra-Thin Premium Silicon Steel
Recommended ESC: Hobbywing XeRun AXE Plus R3
Colour: Black

Key Features

• Purpose-built for 1/5 and 1/6 scale crawlers
• High-power large-scale crawler motor
• Strong low-end torque
• Ultra-smooth low-speed control
• Zero-cogging operation
• Compact 49.5 × 87mm design
• Designed to pair with XeRun AXE Plus R3 ESC
• Built-in high-precision magnetic encoder
• Up to 60× higher position accuracy than conventional Hall sensors
• Consistent three-phase signal feedback
• IP66 weather protection
• Suitable for rain, snow, mud, sand and water
• High-hardness CNC aluminium housing
• Premium bearings
• 200°C heat-resistant enamelled wire
• High-toughness alloy output shaft
• Ultra-thin premium silicon steel laminations

What's Included

• 1 × Hobbywing XeRun AXE 4987SD 1600KV Black R3S Brushless Motor

Frequently Asked Questions – Hobbywing XeRun AXE 4987SD 1600KV R3S Crawler Motor

What vehicles is the Hobbywing XeRun AXE 4987SD 1600KV designed for?

The Hobbywing XeRun AXE 4987SD 1600KV is purpose-built for large-scale 1/5 and 1/6 RC crawlers requiring high torque and precise low-speed control.

What ESC is recommended for the Hobbywing XeRun AXE 4987SD 1600KV?

The Hobbywing XeRun AXE 4987SD is designed to pair with the XeRun AXE Plus R3 ESC for smooth low-speed operation and strong low-end torque.

Does the Hobbywing XeRun AXE 4987SD use a Hall sensor?

The Hobbywing XeRun AXE 4987SD uses a built-in high-precision magnetic encoder. Hobbywing states that it provides 60 times higher position accuracy than conventional Hall sensors.

Does the Hobbywing XeRun AXE 4987SD have cogging at low speed?

The Hobbywing XeRun AXE 4987SD is designed to provide ultra-smooth low-speed control with zero cogging, making it suitable for technical crawling where precise throttle control is essential.

Is the Hobbywing XeRun AXE 4987SD waterproof?

The Hobbywing XeRun AXE 4987SD has an IP66 weatherproof rating and is designed to handle demanding conditions including rain, snow, mud, sand and water.

What are the dimensions of the Hobbywing XeRun AXE 4987SD motor?

The Hobbywing XeRun AXE 4987SD measures 49.5mm in diameter and 87mm in length.

What KV is the Hobbywing XeRun AXE 4987SD R3S?

This version of the Hobbywing XeRun AXE 4987SD R3S is rated at 1600KV.

What materials are used in the Hobbywing XeRun AXE 4987SD?

The motor features a high-hardness CNC-machined aluminium housing, premium bearings, 200°C heat-resistant enamelled wire, a high-toughness alloy output shaft and ultra-thin premium silicon steel laminations.

Why is the magnetic encoder useful for RC crawling?

The high-precision magnetic encoder provides accurate rotor position feedback, helping the motor system deliver smooth and precise control at very low speeds during technical crawling.