Flow rails are fabricated of 12 gauge galvanized steel channel, and are repetitively punched for flexibility with 1.9" diameter wheels double staggered on 2" centers
Wheels are fitted with eight 1/4" diameter precision ground ball bearings for long wear life and low friction
5" @ 6.7 lb. structural channel for entry and discharge horizontal rail supports and 3" @ 4.1 lb. structural channel for internal rail supports with weights over 2,000 lbs. per single bay is recommended
In most cases, frames are 50" overall depth with space between the frames of 46"