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Robart - ROBQ0635 ROB635RS 635RS 758936635031 0758936635031
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Robart 635RS 90 Degree Heavy Duty Mains
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Robart 635RS 90 Degree Heavy Duty Mains
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Tech Notes
These are the Robart Heavy Duty 635 Series Main Retract Mechanism
20 - 55 lb. Pneumatic Retracts.


These 635 series heavy duty custom pneumatic retracts are designed for
specfic R/C aircraft weighing up to 32 lbs.
Constructed the same as the standard 630 series retracts with heat
treated aluminum alloy frames and trunions, these gears will
accomandate a 1/2" dia. RoboStrut or a custom made 5/8" dia. 4130
alloy steel tubular RoboStruts. Offers long dependable service for
large aircraft flying off grass or paved runways. Powered by a 5/8"
bore triple sealed Robart air cylinder, all of these units feature
positive up and down locks. Easily adjusted for toe-in with the
unique Robart "split-lock" trunion.


One set of 635RS 90 degree pneumatic retracts


Assembly to aircraft
Proper 1/2" dia. RoboStrut to fit aircraft application


Length: 4-1/2" (114.30mm)
Width: 2-1/4" (57.15mm)
Height: 1-1/2" (38.10mm)


This is the 90 deg. Heavy Duty RoboStrut Ready Retract Mechanism Only

rda 12/8/06

– If you need more information, use these Robart resources –
Web Site:
Phone: 630-584-7616
  Postal Address:
625 N. 12TH STREET

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