Specification Brand : BIAXJUNY BulletPoint1 : 【Trolleys Size】Two Bearing Trolley Assembly made of solid galvanized iron for impact resistance.The surface is galvanized to rust resistance.Strut trolley steel plate hole diameter 14mm;thickness 4mm.Two trolley assemblies for use with 1-5/8" Wide and All 1-5/8" or Taller Strut Channel. BulletPoint2 : 【Unique design】Unistrut trolley wheel it rolls smoothly, fits easily into a standard single slot, stays centered in the slot, and has good side clearance so the bolts don't rub or get stuck in the slot. BulletPoint3 : 【Bearing load】100 pounds at 600 rpm, 200 pounds at 300 rpm, 250 pounds at 100 rpm, breaking strength: 1800 pounds. BulletPoint4 : 【MULTI-PURPOSE】Our 2 wheel roller trolley is suitable for different situations in our daily life. Can be used in garage winch systems, electric lift systems and ceiling trolley systems. BulletPoint5 : 【Quality Service】If you have any issues with the wheel unistrut trolley then just let us know and we will solve it for you within 24 hours to ensure you are completely satisfied. BulletPoint6 : ✅ [Durable construction] The roller trolley assembly is made of strengthened solid steel, ensuring impact resistance and galvanized properties to prevent rust and corrosion. The solid bearing steel pin in the strut channel adds to its durability. Color : golden ExternallyAssignedProductIdentifier1 : 0766157076144 ExternallyAssignedProductIdentifier2 : 766157076144 FinishType : Powder Coated IncludedComponents : Beam Trolleys,2 Wheel Trolley Assembly Roller ItemName : BIAXJUNY 2 Wheel Trolley Assembly Roller,Unistrut Trolley Roller Two Bearing Trolley Assembly for Use with 1-5/8" Wide and All1-5/8"Ortaller Strut Channel 4pc ItemPackageDimensions_Height : 13.1064 centimeters ItemPackageDimensions_Length : 3.9116 centimeters ItemPackageDimensions_Width : 8.1026 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : beam-trolleys LoadCapacity : 2000 pound Manufacturer : BIAXJUNY Material : Alloy Steel ModelName : TrolleyTrack ModelNumber : WIA4 MountingType : Stem Mount NumberOfItems : 4 PartNumber : BT003 ProductDescription : 1:Create a unique rail system for your workroom? 2:A door for your warehouse? 3:Transport meat easily? 4:Move cut wood with little effort? 5:2 Wheel bearing trolley bring you more possibilities. Product Name: Two Wheel Bearing Trolley Suitable for: All 1-5/8" Wide and 1-5/8" or Taller Strut Channel Material: Galvanized iron Design load: 100 lbs at 600 rpm;200 lbs at 300 rpm;250 lbs at 100 rpm Break strength: 1800 lbs Package included: 4Pcs