This year at LDI we noticed a handy item they’ve been working – it’s called the NO. 451 REALLY USEFUL CARRIER. It utilizes 4 urethane-tired sealed ball bearing wheels are riveted to a machined black aluminum body for use with No. 410S or 410A Track. Carrier is provided with two Nylatron bearings integral to the body to keep unit centered in the track assembly. Carrier body is provided with a complement of mounting holes to enable attachment of scenery and various devices. Each unit has a working load limit of 200#.
451A same as No. 451 plus a third set of wheels to help prevent tipping of an unbalanced load.