Specification Brand : Service Caster BulletPoint1 : These Service Caster Series #30 Phenolic 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": 800 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 : 4 Swivel - Total Lock Brakes - Black CompatibleWithVehicleType : Trailer ExteriorFinish : Alloy Steel ExternallyAssignedProductIdentifier : 6974013544520 ExternallyAssignedProductIdentifier1 : 670533884110 ExternallyAssignedProductIdentifier2 : 0670533884110 IncludedComponents : Gate Wheel,Screws, Spanner ItemName : Phenolic Swivel Top Plate Casters Set of 4 Heavy Duty with 6 Inch Wheels - Includes 4 Swivel with Total Lock Brakes – 4,800 lbs. Total Capacity - Service Caster Brand ItemPackageDimensions_Height : 50.8 centimeters ItemPackageDimensions_Length : 14.732 centimeters ItemPackageDimensions_Width : 23.368 centimeters ItemPackageQuantity : 4 ItemShape : 1 Brake ItemTypeKeyword : plate-casters LoadCapacity : 1200.0 pounds Manufacturer : Service Caster Material : Phenolic Material1 : Rubber Material2 : Metal Material3 : Steel ModelNumber : Series #30 MountingType : Plate Mount NumberOfItems : 4 PartNumber : SCC-TTL30S620-PHR-4 Pattern : 4 inch PitchCircleDiameter : 150 millimeters ProductDescription : Listing is for a set of four (4) Service Caster Series #30 swivel casters with 6" diameter by 2" wide phenolic wheels with total lock brakes capable of supporting a total weight of 4,800 lbs. (1,200 lbs. per caster). When searching for a reliable and durable solution to your caster needs, rely on Service Caster Series 30 top plate phenolic wheel casters. The Service Caster Series #30 is ideal for medium and heavy duty material handling, carts, equipment, and shop projects. The zinc plated finish provides durability under any condition, and the phenolic resin wheels are highly resistant to impact damage, providing protection for floors in commercial and industrial settings. Not only are they resistant to water, oil, and grease, but because they are non-metallic, these wheels are spark proof, keeping you safely moving forward. Service Caster is unsurpassed in quality, reliability, and excellent customer service. Count on us to move you forward. ProductSiteLaunchDate : 2020-08-24T15:34:46.508Z Size : 6" Wheel Style : 6 INCH(2 Swivel With Brake,2 Swivel Without Brake) SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Multi-Surface UnitCount : 4 UnspscCode : 31162702 WebsiteShippingWeight : 12.474 kilograms