Specification Brand : Service Caster BulletPoint1 : These Service Caster Series #30 Semi Steel Cast Iron casters offer various wheel sizes and mounting heights: 3-1/4" Wheel: 4-1/4" mounting height; 4” wheel: 5-5/8” mounting height; 5” wheel: 6-1/2” mounting height; 6” wheel: 7-1/2” mounting height; 8” wheel: 9-1/2” mounting height. BulletPoint2 : Weight Capacity: 3-1/4": 700 lbs Capacity/Caster, 4": 1000 lbs Capacity/Caster, 5": 1000 lbs Capacity/Caster, 6": 1200 lbs. Capacity/Caster, and 8": 1250 lbs Capacity/Caster BulletPoint3 : Top plate measures at 4" x 4-1/2" with a bolt hole pattern of 2-5/8" x 3-5/8" to 3" x 3" and can either be bolted or welded on. BulletPoint4 : Brake options include a top lock brake (TLB), a total lock brake (TTL), or a side lock brake (SLB). The TLB places a positive locking force against the wheel tread, locking the wheel only. The SLB places a positive locking force against the wheel hub, locking the wheel only. The TTL also places a positive locking force against the wheel tread, but the TTL simultaneously locks the wheel and the swivel for a complete stationary position. BulletPoint5 : Find other wheel materials, sizes and all Service Caster products at our Amazon Storefront. Click on the “by Service Caster” link above the main title on any Service Caster page listing. BulletPoint6 : Number of items: 15 Color : 4 Swivel - No Brake - Silver Color1 : Red Color2 : Grey CompatibleWithVehicleType : Truck CustomerPackageType : Standard Packaging ExteriorFinish : Machined ExternallyAssignedProductIdentifier1 : 670533878416 ExternallyAssignedProductIdentifier2 : 0670533878416 ExternallyAssignedProductIdentifier3 : 00672485350798 IncludedComponents : 4pcs Caster wheels, screws and spanner ItemName : Semi Steel Cast Iron Swivel Top Plate Casters Set of 4 Heavy Duty with 3.25 Inch Wheels - Includes 4 Swivel – 2,800 lbs. Total Capacity - Service Caster Brand ItemPackageDimensions_Height : 28.194 centimeters ItemPackageDimensions_Length : 10.922 centimeters ItemPackageDimensions_Width : 18.288 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : plate-casters LoadCapacity : 700.0 pounds Manufacturer : Service Caster Material : Semi Steel Cast Iron MaximumWeightRecommendation : 1 milligrams ModelNumber : Series #30 MountingType : Screw Installation NumberOfItems : 4 PackageLevel : unit PartNumber : SCC-30CS3420-SSR-4 ProductDescription : Listing is for a set of four (4) Service Caster Series #30 swivel casters with 3.25" diameter by 2" wide semi steel cast iron wheels capable of supporting a total weight of 2,800 lbs. (700 lbs. per caster). When searching for a reliable and durable solution for heavy duty projects, consider Service Caster’s Series 30 top plate semi steel cast iron wheel casters. The Service Caster Series #30 is ideal for material handling, carts, equipment, and shop projects. The semi-steel cast iron wheel is built to withstand high capacity, heavy loads up to 1250 lbs and in temperatures up to 600°F. An economic choice over steel, semi-steel wheels are abrasion resistant and rugged. Finely crafted with a machined hub, wheel face and double ball bearing heat treated raceways, these versatile casters are ideal for a wide range of applications, such as dollies, platform trucks, warehouse carts and freight terminals. Or ensure a smooth and secure ride for industrial and commercial equipment. Even drywall carts, welding carts, and wall panel carts will be ready to roll on the Series 30, keeping you moving forward.Service Caster is unsurpassed in quality, reliability, and excellent customer service. Count on us to move you forward. ProductSiteLaunchDate : 2018-10-23T15:40:17.125Z Size : 3.25" Wheel Style : 5 inch SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Multi-Surface UnitCount : 4 WarrantyDescription : 60 days. WebsiteShippingWeight : 15 pounds