Specification Brand : FWWQOE BulletPoint : Hand Tools BulletPoint1 : These Service Caster Series #20 Phenolic casters offer various wheel sizes and mounting heights: 3” Wheel: 4-1/8” mounting height; 3-1/2” wheel: 4-5/8” mounting height; 4” wheel: 5-1/8” mounting height; 5” wheel: 6-1/8” mounting height. BulletPoint2 : Weight Capacity: 3", 4", 5", and 6": 300 lbs Capacity/Caster BulletPoint3 : All casters feature a 3/8" diameter (16 TPI x 1-1/2”) threaded stem. Threaded stems can be difficult to measure. Service Caster recommends having existing threads checked on a thread gauge to determine correct thread size before ordering. Don't see the size you need? No problem! Call us or message us by clicking the blue Service Caster Corporation hyperlink underneath the buy or add to cart button and then clicking the ask a question button. BulletPoint4 : Brake options include a top lock brake, a total lock brake, or a posi lock brake. The top lock brake places a positive locking force against the wheel tread locking the wheel only. The total lock brake simultaneously locks the wheel and the swivel for a complete stationary position. The posi lock brake places a positive locking force against the wheel tread similar to the top lock brake, but the pedal is located above the wheel tread rather than on the side of the wheel. 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 : One Color ExternallyAssignedProductIdentifier : 7320443663819 ExternallyAssignedProductIdentifier1 : 0734005100235 ExternallyAssignedProductIdentifier2 : 734005100235 IncludedComponents : Caster Wheel ItemName : FWWQOE 2pcs CY-22H-NS Plastic Ball Steel Shell Ball Transfer Unit,30kgs / 40kgs Load Capacity Conveyor Transfer Roller ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : ball-casters LoadCapacity : 200.0 pounds Manufacturer : FWWQOE Material : Phenolic ModelNumber : FWWQOE MountingType : Stem Mount NumberOfItems : 1 PartNumber : FWWQOE ProductDescription : Hand Tools CY-22H-NS Plastic ball steel shell Stud Mount Ball transfer unit Capacity : 30 / 40kgs ProductSiteLaunchDate : 2024-08-10T09:27:12.266Z Size : One Size Style : 2 With, 2 Without Brakes SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Multi-Surface UnitCount : 1 UnspscCode : 31171500 WebsiteShippingWeight : 1.7 pounds