Specification Brand : Service Caster BulletPoint1 : These Service Caster Series #30 Rubber on Cast Iron casters offer various wheel sizes and mounting heights: 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: 4": 400 lbs Capacity/Caster, 5": 400 lbs Capacity/Caster, 6": 450 lbs. Capacity/Caster, and 8": 500 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), or a total lock brake (TTL). The top lock brake (TLB) places a positive locking force against the wheel tread locking the wheel only. The total lock brake (TTL) also places a positive locking force against the wheel tread, but the total lock brake (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 : 4 Swivel - Top Lock Brakes - Black ExternallyAssignedProductIdentifier1 : 670533878348 ExternallyAssignedProductIdentifier2 : 0670533878348 ItemName : Rubber on Metal Swivel Top Plate Casters Set of 4 Heavy Duty with 8 Inch Wheels - Includes 4 Swivel with Top Lock Brakes – 2,000 lbs. Total Capacity - Service Caster Brand ItemPackageQuantity : 1 ItemTypeKeyword : plate-casters LoadCapacity : 500.0 pounds Manufacturer : Service Caster Material : Rubber on Cast Iron ModelNumber : Series #30 MountingType : Plate Mount NumberOfItems : 4 PartNumber : SCC-30CS820-RSR-TLB-4 ProductDescription : Listing is for a set of four (4) Service Caster Series #30 swivel casters with 8" diameter by 2" wide rubber on cast iron wheels with top lock brakes capable of supporting a total weight of 2,000 lbs. (500 lbs. per caster). When searching for a reliable and durable solution for medium and heavy duty projects, consider Service Caster’s Series 30 top plate rubber on metal casters. The Service Caster Series #30 is ideal for material handling, carts, equipment, and shop projects. The rubber tread performs especially well on hard surfaces such as concrete, tile, and wood, while the metal core wheel stands up to heavier loads with a stable and secure roll. Finely crafted with 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 food service carts, hotel housekeeping carts, and 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 : 2018-10-08T20:26:54.941Z Size : 8" Wheel Style : 4 Swivels with Brake SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Multi-Surface UnitCount : 4 UnspscCode : 31162702