All casters feature an expanding stem that is 2-11/16” in length. The expanding stem comes in 10 different diameters: (3/4”, 7/8”, 1”, 1-1/8”, 1-1/4”, 1-3/8”, 1-1/2”, 1-5/8”, 1-3/4”, and 1-7/8”). Before ordering, Service Caster recommends measuring the inside diameter of your tubing- this measurement will determine the corresponding expanding stem diameter needed. Not sure how to measure or don't see the size you need? Call us or send us a message.
Brake options include a top lock brake (TLB) or a total lock brake (TTL). The top lock brake (TLB), which is featured on 3", 3-1/2", 4", and 5" wheel sizes, places a positive locking force against the wheel tread locking the wheel only. The total lock brake (TTL), which is featured on all wheel sizes, 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.
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.
The Service Caster Series #20 is ideal for light and medium duty material handling, carts, equipment, and shop projects. Finishes are available in either zinc plating, which provides durability under any condition, or stainless steel, which resists rust and corrosion in indoor or outdoor applications where moisture is a factor. Mounting options include top plate, bolt hole and standard and metric threaded stem sizes. All rolling on a finely crafted ball bearing design that keeps you moving forward.
About Service Caster
For over 25 years, Service Caster has been one of the largest caster and wheel companies in North America. We design, manufacture, assemble, and distribute casters worldwide from our location in West Reading, Pennsylvania. Trust us to assist you with selecting, designing, and integrating casters into your application. Choose from a wide range of casters and wheels designed for light to extra heavy duty use from our extensive catalog of over 200 brands, including the Service Caster brand.
Series 20 Light Duty Hard Rubber Wheel Casters
Hard rubber wheels not only provide higher load capacities and impact resistance than comparable wheels, but are also resistant to most chemicals and oils.
Attributes For Series 20 Hard Rubber Wheel Casters
Wheels Sizes- 3", 3.5", 4", 5"
Brake Types- Top Locking, Total Locking
Attachments Types- Top Plate, Bolt Hole, Threaded Stem
Finishes- Zinc Plating or Stainless Steel
Attachment amp; Brake Options
Provides the utmost stability by supporting the caster at four points. Available in rigid and swivel, with optional top lock or total lock brakes.
Features a 1/2” hollow rivet bolt hole that provides secure fastening for a variety of bolt threads. Bolt holes are available in swivel only, with optional top lock or total lock brakes.
Locks caster into place for a solid, secure fit. Threaded stems come in standard 1/2” and 3/8” diameters and metric 12mm and 10mm diameters. Because of these variations it’s important to measure accurately via a thread gauge. Threaded stems are available in swivel only, with optional top lock or total lock brakes.
Top Locking Brake (TLB) places a positive locking force against the wheel top to securely hold heavy loads. Total Locking Brake (TTL) solidly locks both the swivel and wheel, providing an exceptionally sturdy base when engaged.
Other Series 20 Wheel Types
Non-marking and non-marring, polyurethane performs especially well on hard surfaces such as concrete, tile, and wood. Available in five colors- blue, black, red, maroon and gray.
Other Series 20 Wheel Types
Semi-Steel Cast Iron
Abrasion resistant and rugged, maintains effortless rolling under heavier loads and provides a cost effective solution over steel wheels.
Other Series 20 Wheel Types
Soft, quiet and non-marking wheels perform especially well on hard surfaces such as concrete, tile, and wood.
Other Series 20 Wheel Types
Resistant to impact damage, water, oil and grease. Non-metallic and spark proof.
Non-marking, non-marring polyurethane wheel molded as one soli
Stainless Steel Hard Rubber Swivel Expanding Stem Caster w/4#34
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