Futaba S9405 Servo Coreless High-Torque BB

Tower Stock# LXBXA8  •  Manufacturer Stock# S9405
Futaba S9405 Servo Coreless High-Torque BB (large view)
Regularly Purchased Together
Although customers also purchased these, compatibility is not guaranteed. Click an item for product details.

Notes from our tech department:
This is a Futaba S9405 Servo with J connector.
For use with 1/8 Scale Nitro Cars and Trucks.
One Year Warranty

This servo can produce high-current draw from your batteries.
If using NiMH or LiPo batteries, make sure they are capable
of delivering sufficient amps.


Coreless motor (smoother and stronger than standard servo motors)
High torque
Dual ball bearings
Grommets that protect the internal components from dust and water
Metal gears (2)
One year warranty


One servo with J connector
One small round horn
One large round horn
One X-shape horn
One 6-arm horn
One accessory package
Warranty card


Speed: .11 sec/60 @ 6V
Torque: 100 oz-in @ 6V
(7.2 kg-cm @ 6V)
Weight: 1.9oz (1-15/16oz) (55g)
Length: 1.6" (1-5/8") (41mm)
Width: 0.8" (13/16) (20mm)
Height: 1.5" (1-1/2") (38mm)


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.
updt jxs 10/30/03
updt jxs 10/29/04

See Tower Catalog page 163.
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