Stemedu GX3270BLS
取扱説明書
Stemedu 70KG Brushless Motor Servo
Model: GX3270BLS
導入
This manual provides essential information for the proper installation, operation, and maintenance of your Stemedu 70KG Brushless Motor Servo. Designed for high-performance applications, this servo offers exceptional torque, speed, and durability, making it suitable for various RC models including cars, trucks, and boats.
箱の中身
- 70 kg.cm Servo Unit
- Mounting Hardware (screws, rubber grommets, brass eyelets)
- Servo Arms (various types)
- 接続ケーブル

Image: The 70KG Brushless Motor Servo unit along with its mounting hardware, various servo arms, and connection cables.
主な特徴
- High Torque & Speed: Delivers up to 70 Kg-cm torque at 8.4V with speeds as fast as 0.09 sec/60°.
- IP68防水等級: Ensures reliable performance in wet or submerged conditions.
- Brushless Motor Design: Provides enhanced efficiency, extended lifespan, and smoother operation.
- 耐久性のある構造: Features a metal gear and semi-metal case for superior impact resistance and longevity.
- High-precision Stainless Steel Helical Gears: For accurate and reliable movement.
- CNC Aluminum Middle Shell: Contributes to cooling and extends service life.
仕様
| 属性 | 価値 |
|---|---|
| 信号タイプ | デジタル |
| モータータイプ | ブラシレス |
| デッドバンド | ≤2 uSec |
| 営業巻tage | 6.0V-8.4V |
| 制御システム | PWM (1520us/333hz) |
| 機械的角度 | 360° |
| ベアリング | Four Ball Bearings |
| Operating Travel | 270±10° (500~2500uSec) |
| Operating Speed (sec/60°) | 0.12 (6V) / 0.10 (7.4V) / 0.09 (8.4V) |
| Max. Operating Travel Angle | 358±10° (500~2500uSec) |
| 減速比 | 1:299 |
| ギア素材 | ステンレス鋼 |
| シェル素材 | AL6061 + Nylon additive |
| Horn Gear | 25T |
| 寸法(長さ×幅×高さ) | 40 x 20 x 41.5 mm (1.57 x 0.79 x 1.63 インチ) |
| 重さ | 90g(3.17オンス) |
トルク性能:
- 6.0V: 55.0 kg-cm (1,587 oz-in)
- 7.4V: 63.0 kg-cm (1,763 oz-in)
- 8.0V: 70.0 kg-cm (1,940 oz-in)

Image: Detailed specifications and torque values at different voltages for the servo.

Image: Technical drawing illustrating the precise dimensions of the servo unit.
設定
- Mounting the Servo: Secure the servo unit to your RC model's chassis using the provided mounting hardware. Ensure it is firmly attached to prevent movement during operation.
- Connecting the Servo Arm: Select the appropriate servo arm for your application and attach it to the servo's output shaft. Use the small screw provided to secure the arm.
- 電気接続: Connect the servo's three-wire cable to the corresponding channel on your RC receiver or flight controller. The standard color coding is typically: Brown/Black (Ground), Red (Positive Voltage), Orange/Yellow/White (Signal). Ensure correct polarity.
- 電源: Connect your receiver/flight controller to a suitable power source (e.g., battery eliminator circuit (BEC) or dedicated servo power supply) that provides the recommended operating voltage (6.0V-8.4V)。

画像: view of the servo showing its mounting tabs, ready for installation.
操作手順
The Stemedu 70KG Brushless Motor Servo operates based on Pulse Width Modulation (PWM) signals. The pulse width determines the position of the servo arm.
- Pulse Width Range: 500µs to 2500µs.
- 中立位置: 1500µs (typically corresponds to 0°).
- Operating Travel: 270° ± 10° (from 500µs to 2500µs).
- Maximum Operating Travel Angle: 358° ± 10° (from 500µs to 2500µs).
- Rotating Direction: Counter-clockwise (CCW) when pulse width increases from 500µs to 2500µs.

Image: A visual representation of the servo's 270-degree rotation range and how it corresponds to PWM signals.
Video: This video demonstrates the operational range and responsiveness of the 70KG Brushless Servo, showing its movement across different pulse width settings.
メンテナンス
- 定期清掃: Keep the servo free from dirt, dust, and debris, especially around the output shaft and mounting points.
- 接続を確認してください: すべての電気接続が安全で腐食がないことを確認するために定期的に点検してください。
- ギアの検査: While the gears are durable, occasional inspection for wear or damage is recommended, especially after heavy use or impacts.
- 過負荷を避ける: Do not exceed the servo's specified torque limits, as this can lead to premature wear or damage.
- 防水ケア: Although IP68 rated, avoid prolonged submersion in corrosive liquids. After use in wet conditions, wipe the servo dry.
トラブルシューティング
- サーボが応答しません:
- 電源volを確認してくださいtage and current capacity. Ensure it meets the servo's requirements.
- Verify signal cable connection to the receiver/controller.
- Confirm the receiver/controller is powered on and transmitting signals.
- Inspect for physical obstructions preventing servo movement.
- 不規則な動きや揺れ:
- 接続が緩んでいないか、配線が損傷していないか確認してください。
- 電源が安定しており、電圧変動がないことを確認するtage 滴。
- Verify the PWM signal is clean and within the specified range.
- Check for excessive mechanical load on the servo.
- 過熱:
- Reduce the load on the servo if it's consistently running hot.
- Ensure adequate airflow around the servo, especially in enclosed spaces.
- 動作ボリュームを確認しますtage is not exceeding the maximum 8.4V.
- Loss of Torque:
- Check for worn or damaged gears. Replace if necessary.
- Ensure the power supply is providing sufficient current.
- Verify the servo is not being continuously stalled against an obstacle.
保証とサポート
For warranty information and technical support, please contact Stemedu directly through their official website or the platform where you purchased the product. Keep your proof of purchase for any warranty claims.
追加のリソースと製品情報については、 Stemedu Store on Amazon.