HS-75BB Retract Servo

Part No: 31075S

Product Description

With its low profile design, strong torque and precision movement, the HS-75BB is a great choice to move your retract gear in a realistic manner that you need. Note, this is a retract or “bang bang” servo and only travels from one end to the other (180 degrees). If you require a proportional servo this size, use the Hitec HS-77BB.


  • Low Profile Design
  • Durable Nylon Gears
  • Top Ball Bearings
  • Strong Torque and Precise Movement
  • Slow Speed for Realistic Retract Action

Related Products (Right Column)

Programmer (if applicable), Gears Set, 1st Gear set (if applicable), Case Set, Applicable horns and mounting hardware.

Downloads (Button Below Charts)

2D Drawings, output shaft 2D drawing, available horns 2D drawings

Programmable Functions

List of programmable features and interface type

HS-75BB Servo Specifications

Performance Specifications Min. Max. Unit
Operating Voltage Range 4.8 6 V
Speed 0.45 0.34 Sec @ 60º
Maximum Torque 92 114 oz / in
6.6 8.2 kg / cm
Current Draw at Idle -- 1 mAh
No Load Operating Current Draw -- 150 mAh
Stall Current -- 1000 mAh


Physical Specifications   Unit
Dimensions (W x D x H) 1.73 0.90 0.98 in
44.0 23.0


Weight 1.23 g
35.0 oz
Motor Type 3 Pole Metal Brush Ferrite --
Gear Material Nylon --
Bearing Type Top Ball Bearing --
Output Shaft STD 24 --
Dust Resistance IP 63 --
Water Resistance N / A --
Control Wire Gauge / Strand Count 25 / 40 AWG