Servo selection: torque, speed, gears and voltage
How to select servos for trainers, sport aircraft, large models, cars and boats without under-sizing a control surface.
BLS835 HV Brushless Digital Servo 45.0Kgf.cm 0.13sec/60° for 550-700 Class Helicopters
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Contact RC-MODEL for current availability, technical fit, compatible accessories and a formal quote.
BLS835 HV Brushless Digital Servo 45.0Kgf.cm 0.13sec/60° for 550-700 Class Helicopters is a KST Servos product selected for Helicopter Servos. This page is written for practical buying decisions, with the key fit, size, voltage and performance details organized in one place.
Use it to compare torque, speed, voltage range, construction, dimensions, weight, variants and accessory compatibility before choosing the right component for an RC aircraft, helicopter, car, glider, UAV or workshop installation.
Key Advantages
- Ultra High Torque & Excellent Speed
- Hardened Steel Gear
- CNC Aluminium Case
- High Quality Brushless Motor
- Dual Ball Bearings
- Ideal for 550-700 Class Helicopters
Core Specifications
- Voltage Range: DC6.0V-8.4V
- Rated Voltage: DC7.4V
- Stalling Torque: 30.0 Kgf.cm@6.0V,38.0 Kgf.cm@7.4V,45.0 Kgf.cm@8.4V
- No-load Speed: 0.16sec/60°@6.0V,0.14sec/60°@7.4V,0.13sec/60°@8.4V
- Motor Type: Brushless DC Motor
- Gear Set Material: Hardened Steel
- Ball Bearing: 2BB
- Case Dimensions: 40.5*20*38mm ±0.2mm
- Weight: 70g±10%
- Working Frequency: 1520us/333Hz
- Default Travel Angle: ±50°=100° Total
- Temperature Range: -20℃……+65℃
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| Technical Specifications | |
| Manufacturer | KST Servos |
| Brand | KST |
| Product Code | BR0023.0265 |
| All Variant SKUs | BR0023.0265 |
| Rated Voltage | DC7.4V |
| Voltage Range | DC6.0V-8.4V |
| Stalling Torque | 30.0 Kgf.cm@6.0V,38.0 Kgf.cm@7.4V,45.0 Kgf.cm@8.4V |
| No-load Speed | 0.16sec/60°@6.0V,0.14sec/60°@7.4V,0.13sec/60°@8.4V |
| Working Frequency | 1520us/333Hz |
| Default Travel Angle | ±50°=100° Total |
| Temperature Range | -20℃……+65℃ |
| Soft Start | Programmable |
| Programmable | Yes |
| Case Material | Aluminum Alloy |
| Motor Type | Brushless DC Motor |
| Gear Set Material | Hardened Steel |
| Position Sensor | Potentiometer |
| Ball Bearing | 2BB |
| Case Dimensions | 40.5*20*38mm ±0.2mm |
| Weight | 70g±10% |
| KST Collections | Helicopter Servos, Industrial, Standard Servos, BLS Series |
| Series | BLS Series |
| Size Class | Standard Servos |
| Application | Helicopter Servos |
| Features | Ultra High Torque & Excellent Speed; Hardened Steel Gear; CNC Aluminium Case; High Quality Brushless Motor; Dual Ball Bearings; Ideal for 550-700 Class Helicopters |
| Package Includes | 1 * BLS835 HV Servo; 5 * Plastic Servo Horn; 1 * Servo Horn Screw; 4 * Eyelet; 4 * Grommet |
Tags: KST Servos, BR0023.0265, Helicopter Servos, Industrial & UAV Servos, Standard Servos, BLS Series, RC servo