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. Color : Swivel - No Brake - Silver CompatibleWithVehicleType : Truck ExteriorFinish : Machined ExternallyAssignedProductIdentifier1 : 670533878478 ExternallyAssignedProductIdentifier2 : 0670533878478 ItemName : Semi Steel Cast Iron Swivel Top Plate Heavy Duty Caster with 4 Inch Wheel – 1,000 lbs. Capacity/Caster - Service Caster Brand ItemPackageQuantity : 1 ItemTypeKeyword : plate-casters LoadCapacity : 1000.0 pounds Manufacturer : Service Caster Material : Semi Steel Cast Iron ModelNumber : Series #30 NumberOfItems : 1 PartNumber : SCC-30CS420-SSR ProductDescription : Listing is for one (1) Service Caster Series #30 swivel caster with a 4" diameter, 2" wide semi steel cast iron wheel. Supports 1000 pounds (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 : 2018-10-23T15:40:06.868Z Size : 4" Wheel SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 31162702 WebsiteShippingWeight : 8 pounds