Hitec HS-77BB Low-Profile Ball Bearing Servo U

Tower Stock# LXN621  •  Manufacturer Stock# 31077S
Hitec HS-77BB Low-Profile Ball Bearing Servo U (large view)
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2 for $47.22
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 low profile aileron servo designed to fit in the wing itself.
This allows the use of two aileron servos for more precision. Comes with a
Universal Futaba J, Hitec S, JR and Airtronics Z Connector.


One ball bearing on the output shaft
One internal metal gear (NOT THE OUTPUT GEAR, it is nylon)
Water tight


Dimensions: 44x23x25mm (1.7x0.9x1.0")
Weight: 35 grams (1.23oz)
Speed: .18sec/60 @4.8V .14sec/60 @6.0V
Torque: 61.1 oz-in @4.8V, 76.3 oz-in @6.0V

REPLACEMENT PARTS: servo horn set
HRCM6336 mounting hardware
1-13-98 JBR ir/le
updt jxs 2/14/06

See Tower Catalog page 170.
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