Made of high-strength annealed ductile iron, these Steel Machine Rollers have swivel tops that rotate 360 degrees on chrome steel ball bearings to allow for easier turning. The rollers form a "tank track" to revolve around a center load bearing plate in the frame to provide maximum maneuverability. The weight of the load is transferred directly from the load bearing plate to the rollers, eliminating axle friction and requiring less power to start and move. A spring loaded locking mechanism on the swivel tops, except on model VHMS-2, can be engaged in detents at 45 degrees intervals. These units are virtually maintenance free. Steering bars split in two and connect with sleeve for easy storage.Models & Specifications Model # Description List Price VHMS-2 STEEL MACHINE ROLLER W/2000 LB CAPACITY $149.95 VHMS-8 STEEL MACHINE ROLLER W/8250 LB CAPACITY $281.06 VHMS-15 STEEL MACHINE ROLLER W/22000 LB CAPACITY $306.77 VHMS-30 STEEL MACHINE ROLLER W/33000 LB CAPACITY $390.79 VHMS-2-KIT STEEL MACHINE ROLLER KIT W/2000 LB CAP $721.18 Frequently Asked QuestionsHow do I choose the right model? Each Vestil model number encodes the size, capacity, and configuration shown in the specification table above — match those figures to your application requirements.Are certified drawings available? Yes. Certified approval drawings and compliance certificates are available per model number on request.WarrantyBacked by Vestil's 1-Year Limited Warranty against defects in materials and workmanship.