A pneumatic caster

Pneumatic Series Casters

What Are Pneumatic Casters?

Pneumatic casters are essentially rubber tires filled with air or foam. As the load presses down on the caster, it creates a cushioned ride and exceptional grip that makes it possible to safely transport loads over a wide range of terrain.

What Applications Are Best Suited for Pneumatic Casters?

Pneumatic casters are designed for applications that require a cushioned ride over smooth surfaces, uneven floors, wet terrain, or outside environments where mud, gravel, or grass are present. The shock-absorbing properties of pneumatic casters provide a smooth ride that protects the load, making them ideal for use on carts and trucks transporting sensitive materials such as components, glass, ceramics, electronics, chemicals, sound and lighting equipment, cameras, etc.

The protection offered by pneumatic casters makes them ideal for aerospace applications, marine applications, hospitality and special events, film production, disaster response, and more.

Are Pneumatic Casters Customizable?

There are many ways to customize pneumatic casters. They can be air or foam-filled and can be equipped with a wide range of hardened raceways, ball bearings, plating, lubrication fittings, yokes, and finishes. At RWM Casters, we offer a broad range of pneumatic casters and will help you create the configuration best suited for your intended applications.

The Advantages of Pneumatic Casters?

Pneumatic casters offer exceptional shock absorption, which makes them well-suited for protecting sensitive, easily damaged cargo and equipment. designed to provide reliable traction over wet surfaces, grass, gravel, mud, etc., pneumatic casters will easily traverse debris and obstacles.

Smooth, efficient, and nearly silent, pneumatic casters make it possible to maneuver challenging environments while maintaining complete control over the truck or cart. This increases safety, minimizes strain on the operator, and expedites movement from point to point.

Our Pneumatic Series Casters

We manufacture a comprehensive range of pneumatic casters suitable for an extensive list of industries and potential applications. Our products proudly carry the “Made in the USA” label and maintain the highest quality standards to ensure the safety, performance, and long-term durability of our casters and wheels.

Our customizable pneumatic series casters include:

46 Series

46 Series casters feature a cold-formed top plate, notched yoke, and button. These components are heat-treated and zinc-plated to prevent brinelling, improve swivel action, prevent corrosion, and increase service life. The load and thrust bearings are hardened and grounded to facilitate smooth rotation on hardened raceways. The swivel sections on the 46 Series are equipped with a lubrication fitting for easy field maintenance.

65 Series

65 Series casters feature RWM’s patented Kingpinless™ single ball bearing precision machined raceway that we harden to 53 Rockwell C minimum. The swivel section features a 2 3/8″ diameter raceway with 3/8″ ball bearings. Notched yokes are standard, and the 65 Series casters are zinc-plated to protect against corrosion.

76 Series

76 Series casters feature RWM’s patented Kingpinless™ single ball bearing precision machined raceway that we harden to 53 Rockwell C minimum. The caster has notched yokes with a Laguna blue powder coat finish, and the swivel section features a 3-inch diameter raceway with 0.5-inch ball bearings. The 76 Series incorporates lubrication fittings for both swivel bearings and wheel bearings.

95 Series

95 Series casters incorporate RWM’s patented Kingpinless™ technology and feature a 4.5-inch diameter sealed raceway with 0.75-inch diameter carbon steel balls within a precision machined raceway that we harden to 53 Rockwell C minimum and protected with a Laguna blue powder coat finish.

125 Series

125 Series casters feature RWM’s patented Kingpinless™ single ball bearing precision machined 7-inch raceway and 0.75-inch diameter ball bearings that we harden to 53 Rockwell C minimum. The caster is protected with a Laguna blue powder coat finish.

Choose RWM for Your Business!

Since 1935, the teams at RWM have proudly served industries throughout the country. When you want durable casters and wheels that deliver exceptional performance and long-term reliability, you can always rely on our team to deliver the highest-quality solutions. When you choose our American-made products, you will receive competitive prices, industry-best lead times, industry-leading products, and the exceptional quality you expect from the originator and recognized market leader of Kingpinless casters!

Fill out a contact form to discuss your needs with our team, or place an order today!


Other applications for pneumatic casters may include luggage carts, platform trucks, material handling carts, warehouse and factory applications, job site toolboxes, security cages, stock carts, shelf trucks, mobile storage racks, etc.


CWB Cam Wheel Brake
FCWB Face Contact Wheel Brake
PCWB Poly Cam Wheel Brake
DSL Demountable Swivel Lock (Must also order Notched Yoke (NY)
HDSL Heavy Duty Demountable Swivel Lock
LSL L-Type Swivel Lock
SL Swivel Lock
FG Foot Guard
NY Notched Yoke
SR Sealed Raceway
ZP Zinc Plated


Prefix/ Top Plate Number Mounting Plate Bolt Hole Spacing Bolt Size
46 & 65 series
41RT/41ST 4” x 5” 2-5/8” x 3-5/8” slotted to 3” x 4” 3/8”
42ST 4-1/2” x 6-1/2” 2-7/16” x 4-15/16” slotted to 3-3/8” x 5-1/4” 1/2”
43ST 5” x 5-1/2” 4-1/8” x 4-1/2” 3/8”
76 series
90ST/90RT 6” x 7” 4-5/8” x 5-1/2” slotted to 4-3/8” x 5-5/8” 1/2”
95ST* 95RT 6” x 7-1/2” 4-1/2” x 6” slotted to 4-1/8” x 6-1/8” 1/2”
75ST** 4-1/2” x 6-1/2” 2-7/16” x 4-15/16” slotted to 3-3/8” x 5-1/4” 1/2”
125 series
LLST/LLRT 8-1/2” x 11” 7” x 9-3/4” 5/8”
Pneumatic Series Casters
8"2.8/4"300FN Pneumatic11"65-FNR-0828-S65-FNB-0828-S13
8"2.8/4"300FN Pneumatic11"46-FNR-0828-S46-FNB-0828-S2-5/8"9.5
8"2.8/4"600FN Pneumatic11"2-65-FNR-0828-S2-65-FNB-0828-S20
10"4.1/4"480FN Pneumatic13"46-FNR-1041-S46-FNB-1041-S3-1/4"11
10"4.1/4"480FN Pneumatic13"65-FNR-1041-S65-FNB-1041-S65-FNT-1041-S14.5
10"4.1/4"960FN Pneumatic13"2-65-FNR-1041-S2-65-FNB-1041-S2-65-FNT-1041-S22
12"4.1/6"500FN Pneumatic15-1/2''46-FNR-1241-S46-FNB-1241-S3-1/2"14.5
12"4.1/6"500FN Pneumatic15-1/2''65-FNR-1241-S65-FNB-1241-S65-FNT-1241-S15
12"4.1/6"1000FN Pneumatic15-1/2''2-76-FNR-1241-S2-76-FNB-1241-S2-76-FNT-1241-S35
14"5.3/6"870FN Pneumatic17-3/4"76-FNR-1448-S76-FNB-1448-S76-FNT-1448-S4-1/2"28
14"5.3/6"1740FN Pneumatic17-3/4"2-76-FNR-1448-S2-76-FNB-1448-S2-76-FNT-1448-S41
16"4.8/8"1000FN Pneumatic19-1/8"76-FNR-1648-S76-FNT-1648-S4-1/2"35
16"4.8/8"1230FN Pneumatic19-1/8"95-FNT-1648-S***4"45
16"4.8/8"2000FN Pneumatic19-1/8"2-76-FNR-1648-S2-76-FNT-1648-S4-1/2"53
16"4.8/8"2460FN Pneumatic19-1/8"95-FNT-1648-S***4"45
18"5.7/8″1170FN Pneumatic21-1/4"76-FNR-1857-S76-FNT-1857-S5"40
18"5.7/8″2340FN Pneumatic21-1/4"2-76-FNR-1857-S2-76-FNT-1857-S60
18"5.7/8″1560FN Pneumatic21-1/2"95-FNR-1857-S***95-FNT-1857-S***4-1/2"55
18"5.7/8″3120FN Pneumatic21-1/2"2-95-FNR-1857-S***2-95-FNT-1857-S82
21"6.9/9"2420FN Pneumatic24-1/4"125-FNT-2169-S****5"84.5
21"6.9/9"4840FN Pneumatic24-1/4"2-125-FNT-2169-S****130
23"6.5/10"2775FN Pneumatic26-1/4"125-FNT-2365-S****5"87
23"6.5/10"5550FN Pneumatic26-1/4"2-125-FNT-2365-S****135
25"7.5/10"3630FN Pneumatic28-3/4"125-FNT-2575-S****5"90.5
25"7.5/10"7260FN Pneumatic28-3/4"125-FNT-2575-S****140

To order a rigid caster, change the “S” to “R” in the model number. For example: “76-FNR-1857-R”.

To order rig only, omit the three letters. For example: “76-1857-S”.

The dimensions shown are nominal. If precise dimensions are required, consult your RWM representative. For an approximate weight of our rigid casters, deduct 9.6 lbs per item.

* Height may vary

*** 6 ply

**** 10 ply

4 ply is standard. Maintain proper air pressure for best results.

Capacity rating is for manual operation.

For capacities of power moved loads, larger diameter or higher capacity heavy-duty wheels, please consult the factory.

Pneumatic Series Casters

Benefits of Pneumatic Casters

Do a longer wheel life, reduced maintenance, and enhanced shock absorbency sound like something your business could use? If it does, then pneumatic casters are the ideal solution. The foam or air-filled tires of pneumatic casters provide a cushioned ride well suited for industrial applications. They are ideal for use on pavement and on uneven/damaged flooring. They also won’t damage tiles, linoleum, concrete, or other surfaces.

Pneumatic casters will roll over debris and other obstacles with ease. They will help protect your carts and cargo from damage, and they will extend the operational life span of your wheels. Further, the design of pneumatic casters reduces wear and tear, which in turn reduces required maintenance, making these casters a convenient option.

At RWM, our pneumatic casters are designed to deliver superior load cushioning performance. They can be affixed to dollies, maintenance equipment, carts, machinery, and more. This makes them a versatile option that can be used for production, material handling, product distribution, and more. And the additional friction created by the inflated wheel improves ground contact, which increases traction and reduces the possibility of loads tipping and toppling over as the wheel moves across flooring, loading docks, parking lots, etc.

Choose RWM for Pneumatic Casters You Can Trust!

Our pneumatic casters are specifically designed to handle the toughest tasks. Each caster can be used in warehouses, factories, and more. We have designed and engineered each of our casters to deliver superior performance and reliability, whether the caster is underneath a toolbox, on a mobile storage rack, or moving shelf trucks too and fro. When you want quality you can depend on, you can rest easy knowing you have RWM’s pneumatic casters moving your business forward!

Contact RWM  to learn more about the pneumatic casters we manufacture!