Aircraft Accessories > Landing Gear - Retractable > Landing Gear - Retractable - 2 Gear Air (Pneumatic) [View Top Sellers for this Category] Bookmark this Page

Robart - ROBQ0631 ROB631RS 631RS 758936631026 0758936631026
Manufacturer Stock#
A Closer Look at This Product
  Tech Notes

Browse Robart

Robart 85 Degree Pneumatic Heavy Duty Mains
Save $16.00! Save $16.00 off Your $149 Order!
Place at least a $149 order for a limited time and we'll take $16.00 off the total! All you have to do to claim your savings is click on coupon code 010XL and it will be placed in your shopping cart.

Robart 85 Degree Pneumatic Heavy Duty Mains
View Larger Picture

Stock Number
Retail Price
Tower's Low Price
Stock Status
In Stock
Limited Quantities

Buy Now
Add to wish list
—— Share ——

Tech Notes
This is a set of two Robart 630RS Robostrut Ready 85 Retracts
for planes up to 24lbs (10.9kg). These are for the Main Gear only.


Constructed with heat treated aluminum alloy frames and trunions,
these gear are furnished with 1/2" dia. 4130 alloy steel tubular
They offer long dependable service for large aircraft flying off
grass or paved runways
Powered by a 1/2" bore triple sealed Robart air cylinder and feature
positive up and down locks
Easily adjusted for toe-in with the unique Robart "split-lock"
trunion. Available in standard 90, 85 Main Gear, and 90, 100,
105, and 110 Nose Gear retract angles, with straight or offset


Two retracts with pressure cylinders
One instruction sheet


Installation of air system


Length: 4.5" (114.3mm) total length
Width: 2" (50.8mm) at the mounts
Height: 1.37" (35mm) total from bottom of mounts to top of unit


For use with any 7/16" or 1/2" diameter Robostrut

tlw 6/22/07

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

Click here for Units of Measure Conversion Calculators

Tower Hobbies Has Been Serving Hobbyists Since 1971 • Call 800-637-6050 or 217-398-3636
See Tower Hobbies
Reviews at
Hobbico, Hobby & Model Construction
Supplies - Retail, Champaign, IL
We accept the following: We accept the following payment methods: Discover, MasterCard, Visa, American Express, Diners Club International, JCB, China UnionPay, PayPal, and PayPal Credit.
Unauthorized use of any materials presented here is prohibited. Copying or reproducing any elements from this page is not permitted. All prices, descriptions and availability subject to change. Displayed within some areas of our web site, the Retail Price is suggested by the manufacturer or supplier, or estimated in keeping with standard industry practice. It may not represent the prevailing price in your area or a price that Tower Hobbies has ever offered for the item.
Copyright © Tower Hobbies All rights reserved. Do not duplicate or redistribute in any form.