Next Intent built all the wheels for the Mars Exploration Rovers. Material is Aluminum 7075-T7351. Wall thicknesses down to .025″. Each wheel weighs 2.25 lbs., started out as a 60 lb. solid billet.
Hear from Mark Luoni, TMG Limited, OKK Supplier to Next Intent
"Next Intent is in a very rare category of machined parts manufacturers, with the capability of producing parts for cutting edge aerospace customers which are so exact that few others will even attempt the work.”