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KST BLS159 Low Profile Brushless HV Digital Servo 15Kgf.cm 0.11sec for 1/10 RC Cars & Buggies
$88.99
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Built for the relentless demands of 1/10 scale competition RC, the KST BLS159 low-profile brushless HV digital servo delivers class-leading stall torque of 15 kgf.cm and a blistering 0.11s/60° no-load speed at 7.4V. Powered by a maintenance-free brushless DC motor with hardened steel gears and a full CNC aluminum casing, the BLS159 is engineered to handle the high-impact, high-frequency steering cycles of 2WD/4WD buggies, drift cars, and any low-clearance chassis where premium low-profile performance is non-negotiable.
Key Features
- Brushless DC Motor: Eliminates brush wear for longer service life, lower heat generation, and higher sustained torque output compared to conventional coreless servos.
- High Stall Torque: 15 kgf.cm stall torque at 7.4V provides exceptional steering authority and holding force under aggressive cornering and rough terrain impacts.
- Low-Profile Form Factor: Compact 26.5mm height fits directly into low-clearance 1/10 scale buggy and drift car servo mounts without modification.
- High-Voltage Operation: Native 6.0V–8.4V range for direct 2S LiPo compatibility, delivering full performance without a voltage regulator.
- Hardened Steel Geartrain: Precision-cut steel gears supported by dual ball bearings resist flex and withstand repeated shock loads from jumps and curb strikes.
- Full CNC Aluminum Casing: Machined alloy housing ensures precise chassis fitment, maximum structural rigidity, and rapid heat dissipation during extended runs.
- Programmable & Soft Start: Customizable travel limits with soft-start protection to safeguard drivetrain linkages on power-up.
Technical Specifications
- Rated Voltage: DC 7.4V
- Voltage Range: DC 6.0V – 8.4V
- Motor Type: Brushless DC Motor
- Gear Set Material: Hardened Steel
- Case Material: CNC Aluminum Alloy
- Bearings: Dual Ball Bearings (2BB)
- Position Sensor: Potentiometer
- Working Frequency: 1520μs / 333Hz
- Default Travel Angle: ±50° (100° Total)
- Operating Temperature: -10°C to +65°C
- Soft Start / Programmability: Yes (Programmable)
- Dimensions: 40.0 × 20.0 × 26.5 mm (±0.2mm)
- Weight: 55g (±10%)
Performance Ratings
- Stall Torque: 15 kgf.cm @ 7.4V
- Rated Torque: 4 kgf.cm @ 7.4V
- No-Load Speed: 0.11 sec/60° @ 7.4V
- Rated Speed: 0.15 sec/60° @ 7.4V
- Stall Current: 3.85A
- Rated Current: 0.65A
Dimensions & Sizing
