Specification Brand : TPHUC BulletPoint1 : PREMIUM MATERIAL: Made of steel, and you don't have to worry about it deteriorating over time. Spacer - each main steel connecting bearing with a fixed size spacer to make the whole roller trolley more stable and less noise; Bearings - each custom-built bearing comes with a cover to prevent metal balls from falling out during rotation. No lubrication is required for the bearings. BulletPoint2 : SECURE & STABLE PERFORMANCE: Four-bearing trolley assembly with welded bearing and pin shaft for greater stability for safe use, solidly welded bearing and pin, stable operation, providing reliable durability and quality amazing. The machine uses deep groove ball bearings to ensure that you can operate the machine smoothly, without making noise during use. BulletPoint3 : VERSATILE: Applicable to all channels with 1-5/8" wide channel and all 1-5/8" channel or higher strut Channel. BulletPoint4 : TROLLEYS SIZE: M10 (3/8inch) Bolt in the middle, 80mm (3.15inch) in length. BulletPoint5 : MULTI-PURPOSE: Our 4-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. Color : 4 Pack Department : unisex-adult ExternallyAssignedProductIdentifier1 : 726872019734 ExternallyAssignedProductIdentifier2 : 0726872019734 ImportDesignation : Made in the USA or Imported IncludedComponents : Strut channel, Hoist trolley, Unistrut Trolley IncludedComponents1 : Push Eye Manual Trolley 8k IncludedComponents2 : Push Eye Manual Trolley 8k IncludedComponents3 : Push Eye Manual Trolley 8k IncludedComponents4 : Push Eye Manual Trolley 8k IncludedComponents5 : Push Eye Manual Trolley 8k ItemName : 4 Wheels Trolley Assembly Rollers, 4 Bearings Trolley Assembly for 1-5/8" Wide and All 1-5/8" or Taller Unistrut Strut Channel with M10 Bolt and Lifting Eye Nuts (Pack of 4) ItemPackageDimensions_Height : 17.1958 centimeters ItemPackageDimensions_Length : 4.2926 centimeters ItemPackageDimensions_Width : 11.7094 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : beam-trolleys LoadCapacity : 2700.0 pounds Manufacturer : TPHUC Material : Stainless Steel Material1 : Blend Material2 : Blend Material3 : Blend Material4 : Blend Material5 : Blend ModelName : 4 Wheels Trolley Assembly Rollers ModelNumber : TP009 NumberOfBoxes : 1 NumberOfItems : 4 NumberOfWheels : 4 PackageLevel : unit PartNumber : TP009 ProductDescription : 1 ProductSiteLaunchDate : 2023-12-18T12:36:54.092Z Size : 4 Wheels Style : centimeter SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable SupplierDeclaredDgHzRegulation5 : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 2 Voltage : 694 volts