Futaba S9157 Digital High-Torque Servo

Tower Stock# LXVPF0  •  Manufacturer Stock# S9157
Futaba S9157 Digital High-Torque Servo (large view)
Notes from our tech department:
This is the Futaba S9157 High Torque Servo.


Ideal for large competition airplanes
Coreless motor
Dual ball bearings and metal gears
Metal middle case helps dissipate heat for cooler operation
One year limited warranty


Futaba S9157 High Torque Servo with 0.83" (21mm) diameter round horn,
1.8" (45mm) diameter round horn, 1.2" (31.5mm) 6 point horn, 1.5"
(38.5mm) 4 point horn and mounting hardware


Installing in model, connecting linkage and connecting to receiver


Torque: 425oz-in (30.6kg/cm) @ 6V
Speed: 0.14 @ 6V
Size: 1.6 x 0.8 x 1.5" (41 x 21 x 37mm)
Weight 2.5oz (71g)
Horn Screw Size: 3x8mm


Use with NiCD batteries only
A note on Coreless motors: Conventional servo motors have a steel
core armature wrapped with wire that spins inside the magnets. In
a Coreless design, the armature uses a thin wire mesh that forms a
cup that spins around the outside of the magnet eliminating the
heavy steel core. This design results in smoother operation and
faster response time.

jxs 01/20/09

See Tower Catalog page 163.
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