Specification Brand : Service Caster BulletPoint1 : These Service Caster Series #20 High Temperature Phenolic casters offer various wheel sizes and mounting heights: 3” Wheel: 4-1/8” mounting height; 4” wheel: 5-1/8” mounting height; 5” wheel: 6-1/8” mounting height; 6" wheel: 7-1/8" mounting height. BulletPoint2 : Weight Capacity: 3", 4", 5", and 6": 300 lbs Capacity/Caster BulletPoint3 : All casters feature a 1/2” diameter (13 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 (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 - Brown ExteriorFinish : Metallic ExternallyAssignedProductIdentifier1 : 0882413321350 ExternallyAssignedProductIdentifier2 : 882413321350 HoleCount : 1000 ItemName : High Temperature Phenolic Swivel Threaded Stem Caster w/Roller Bearing Set of 4 w/4" x 1.25" Brown Wheels and 1/2" Stems - Includes 4 with Top Lock Brakes- 1200 lbs Total Capacity-Service Caster Brand ItemPackageDimensions_Height : 5.5 inches ItemPackageDimensions_Length : 11 inches ItemPackageDimensions_Width : 8.5 inches ItemPackageQuantity : 4 ItemTypeKeyword : stem-casters LoadCapacity : 300.0 pounds Manufacturer : Service Caster Material : High Temperature Phenolic ModelNumber : Series #20 MountingType : Stem Mount NumberOfItems : 4 PartNumber : SCC-TS20S414-PHRHT-TLB-121315-4 ProductDescription : Listing is for a set of four (4) Service Caster Series #20 swivel casters, four (4) swivel 1/2" threaded stem casters with top lock brakes, 4” diameter by 1-1/4” wide high temperature phenolic wheels. Supports a total weight of 1,200lbs (300lbs/per caster). When searching for a reliable and durable solution to your caster needs, consider Service Caster’s Series 20 roller bearing high temperature phenolic casters. The Service Caster Series #20 is ideal for bakery racks, light and medium duty material handling, carts, equipment, and shop projects. The zinc plated finish provides durability under any condition, and the high temp phenolic wheels- quieter than comparable steel wheels- have a high resistance to impact damage, providing protection for floors in commercial and industrial settings. The roller bearing is capable of carrying greater loads while also providing smoother rolling motion. It has a split outer race shell into which the roller assembly is inserted. Combination seal/thrust retainer washers protect the bearing from dirt, water, and chemicals. They also help absorb thrust friction (Note: roller bearing must be used with hardened spanner bushing or hardened shaft). This caster is ideal for use in high temperatures associated with baking, performing consistently in temperature ratings of 475°F continuous usage to 525°F intermittent usage. 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. Mounting options include top plate, bolt hole and standard and metric threaded stem sizes. Service Caster is unsurpassed in quality, reliability, and excellent customer service. Count on us to move you forward. ProductSiteLaunchDate : 2020-07-29T14:07:50.178Z Size : 4" Wheel Style : Wire Collated SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Multi-Surface UnitCount : 4 WebsiteShippingWeight : 6.8 pounds