01 Precautions ⚠️
- While the product is powered on, do not get distracted by other matters.
- Before connecting the motor, ensure that areas requiring insulation are properly handled. Short circuits can damage the product.
- Before using this motor, carefully review the manuals for all power equipment and the chassis to ensure reasonable power matching, avoiding motor overload and damage due to incorrect power configurations.
- Do not operate at full throttle before the gears are installed. High-speed operation under no load may damage the motor.
- Be sure to connect all components carefully. Poor connections may lead to loss of control of the RC model car or cause damage to components and other unpredictable situations.
- Do not allow the motor casing temperature to exceed 100°C (212°F). High temperatures can cause the rotor magnets to demagnetize, leading to irreversible damage to the motor.
02 Product Features
- 4-pole rotor design with super torque, providing strong burst power and stable output power, helping the vehicle easily perform various difficult maneuvers.
- Ultra-high efficiency, up to 90%; under the same load conditions, it effectively reduces motor temperature and outputs greater power.
- High-hardness aluminum CNC casing, high-temperature resistant coils, explosion-proof rotor, 0.2mm thick silicon steel sheets, high-toughness stainless steel output shaft, and top-brand high-precision, long-life, high-quality bearings create superior motor durability.
- Detachable structural design (Note: partially detachable) facilitates daily cleaning and maintenance, effectively extending motor lifespan and improving operational efficiency.
- When paired with HOBBYWING EZRUN MAX6/5 ESCs, it offers perfect compatibility, providing users with an ultimate control experience that is both effortless and powerful.
03 Specifications
Diagrams illustrate motor dimensions and shaft details for EZRUN 56113/5687 and EZRUN 4985 models, showing overall diameter, length, shaft diameter, and exposed shaft length, along with mounting hole patterns and wire configurations.
| Model | KV (No Load) | Applicable LiPo Cells | Resistance (Ω) | Outer Diameter/Length (mm) | Shaft Diameter/Exposed Length (mm) | Motor Poles | Weight (g) | Recommended ESC | Main Application |
|---|---|---|---|---|---|---|---|---|---|
| EZRUN-5687SL-1100KV | 1100 | 3-8S | 0.0041 | Ø=56mm (2.20in) L=88.5mm (3.48in) | Ø=8.0mm (0.31in) L=31.0mm (1.22in) | 4 | 916g (32.31oz) | EZRUN MAX6/MAX5 | 1/5 scale light-load vehicles and 1/6 scale vehicles |
| EZRUN-56113SL-800KV | 800 | 3-8S | 0.0049 | Ø=56mm (2.20in) L=114.5mm (4.51in) | Ø=8.0mm (0.31in) L=31.0mm (1.22in) | 4 | 1210g (42.68oz) | EZRUN MAX5 | 1/5 scale vehicles |
| EZRUN-4985SL-1650KV | 1650 | 3-6S | 0.0059 | Ø=49mm (1.92in) L=86.5mm (3.41in) | Ø=5.0mm (0.20in) L=21.5mm (0.85in) | 4 | 632g (22.3oz) | EZRUN MAX6 | 1/6 and 1/7 scale vehicles |
| EZRUN-4985SL-1250KV | 1250 | 3-8S | 0.0081 | Ø=49mm (1.92in) L=86.5mm (3.41in) | Ø=5.0mm (0.20in) L=21.5mm (0.85in) | 4 | 636g (22.4oz) | EZRUN MAX6 | 1/6 and 1/7 scale vehicles |
04 Installation and Connection
1. Motor Installation
The 4985 motor has four M4 screw holes, while the 5687 and 56113 motors have eight M4 holes. The panel screw depth is 8mm, so it is recommended to use M4 screws no longer than 10mm for installation.
2. Motor Connection
There is no strict wire sequence requirement for connecting the motor to the ESC. The #A/#B/#C wires of the ESC can be connected to the three wires of the motor in any order. If the motor rotates in the reverse direction, simply swap any two motor wires.
3. Check
Before turning on the RC car's power, carefully re-check the reliability of the motor installation and the correctness of all connections.
05 Gear Ratio Selection
The correct selection of gear ratio is very important. An inappropriate gear ratio can lead to significant losses. Please follow the points below to select the gear ratio correctly!
1. Motor Operating Temperature
The motor's operating temperature should be below 100°C (212°F). Temperatures above 100°C can weaken the rotor's magnetic properties and potentially cause localized coil melting and short circuits, leading to high current that damages the ESC. Selecting an appropriate gear ratio can effectively prevent the motor from overheating.
2. Gear Ratio Selection Principle
To prevent overheating that could lead to ESC and motor damage, start by configuring the gear ratio with the smallest pinion gear. Continuously monitor the motor temperature. This is the only way to ensure the motor does not overheat. If the motor and ESC temperatures remain stable within a low range during driving, you can try using a larger pinion gear and closely monitor the motor temperature to determine if the adjusted gear ratio is suitable for your model car, local climate, and track conditions. (Please note that climate and track conditions are not constant and can change frequently. Therefore, frequent monitoring of ESC and motor temperatures is an important daily operation to ensure the long-term stable operation of your electronic equipment).
06 Assembly Instructions
To ensure a longer motor lifespan and higher efficiency, we recommend regular bearing checks and cleaning of dirt inside the motor. The frequency depends on your usage patterns and track conditions. For installation, follow the steps in the assembly diagram below; for disassembly, follow the reverse steps.
- 1. Install Rotor. The rotor is shown being inserted into the motor housing.
- 2. Install Front End Bell Assembly. The front end bell assembly is shown being positioned onto the motor housing.
- 3. Tighten Front End Bell Screws. Screws are shown being used to secure the front end bell.
- 4. Install Rear End Bell Assembly. The rear end bell assembly is shown being positioned onto the motor housing.
- 5. Tighten Rear End Bell Screws. Screws are shown being used to secure the rear end bell.
- 6. Final Assembled Product. The fully assembled motor is shown.
Parts List
- Motor Metal Shell Fixing Screws x 6 Pcs (M3.0 x 5.0mm)
- Front End Bell Assembly x 1 Pcs
- Motor Metal Middle Shell x 1 Pcs
- Rotor x 1 Pcs
- Motor Metal Bottom Shell Fixing Screws x 5 Pcs (Internal Hexagon Countersunk M3.0x5.0mm) (For 4985 motor: 3 Pcs Internal Hexagon Countersunk M2.5x5mm)
- Rear End Bell Assembly x 1 Pcs
