•️ 【MATERIAL】Made of high-quality standard 45 # steel with galvanized, The thickness of the bracket is 11 gauge (3mm). These v-groove wheels are precisely machined, solid construct, consistent quality, and very smooth rolling, corrosion resistant
•️ 【SIZE】1.2 inches/ 2 inches/ 2.5 inches/ 3 inches/ 4 inches
•️ 【STRONG LOAD CAPACITY】Each heavy-duty caster allows a load of 650 lbs capacity.
•️ 【SMOOTH ROLLING】Each wheel has built-in double 6000RS chrome steel seal ball bearings for higher resistance and durability. These v-groove wheels on an inverted v-track have much less rolling friction and have changed the roof rolling off from a hard job to an easy job
•️ 【APPLICATIONS】Fit inverted 90-degree angle v-track, heavy-duty rolling door, sliding gate, industrial machines rail, wire rope rail device, containers racks, sawmill, dog fence, and more