SA (Shock Absorbing) Series Casters

SHOCK ABSORBING CASTERS

RWM Casters proudly manufactures shock-absorbing casters with a heavy-duty, spring-loaded design to provide a cushioned ride when traversing uneven terrain. The primary goal is to reduce the shock and vibration transferred to the items on the cart, truck, or rack being moved around.

Our shock-absorbing swivel casters have load ratings ranging from 100 lbs. to 18,000 lbs. for nearly any light- to heavy-duty industrial application. We also proudly manufacture these products in the U.S. so that you can put your complete confidence in our durable, high-performance casters.

Learn more about the products in our shock-absorbing series to find out if these casters are right for your application. To get more info or place an order, simply contact us online or call 800-634-7704.

Shock-Absorbing, Spring-Loaded Industrial Casters by RWM Casters

APPLICATIONS

You might need casters with shock absorbency characteristics if you plan to transport or provide support for any of the following:

  • Diagnostic and electrical equipment
  • Institutional and laboratory equipment and stands
  • Medical equipment and carts
  • Mobile workstations
  • Computer mainframes and towers
  • Point of purchase displays and shelving
  • Food processing equipment
  • Packaging equipment
  • Sound and lighting equipment
  • Ground support equipment
  • Assembly line dollies
  • Mobile storage racks
  • Many other light- to heavy-duty applications

Benefits of Shock-Absorbing Casters

You enjoy several benefits by choosing casters with shock absorbency, including:

  • Protected cargo: The number one reason to use shock-absorbing casters is to reduce the vibration transferred to the contents of the cart.
  • Reduced noise: Carts can make a lot of noise when traveling over rough surfaces. Spring-loaded casters reduce this by smoothing out the ride.
  • Decreased risk of overload: The shock absorption feature equalizes the load among four or more casters, reducing the chance of overload and the uncontrollable twisting of the cart.
  • Increased ease of use: Dollies and carts with spring-loaded casters are easier to roll over cracked flooring, uneven surfaces, thresholds, and other obstructions.
  • Reduced risk of damage to the floor: Shock absorbency reduces wear and tear on the flooring beneath the casters.

Choosing Shock-Absorbing Casters

Not all shock-absorbing casters are created equal. If the casters you choose are outfitted with the wrong springs, they might do more harm than good. For instance, if the springs are too firm, they could create more noise and cause the contents on a cart to shake and vibrate far more. In fact, if the springs are not sufficiently firm, there could be no shock absorption at all.

Combat these issues by selecting shock-absorbing casters with the right weight capacity for the application.

Another factor to consider is how the springs are mounted. Your options include:

  • Vertical mount
  • Inside mount
  • Outside mount

If the casters always bear the same weight, vertical-mounted springs may be ideal. This design offers no deflection of the springs when the casters carry the weight of the rated load capacity.

Then again, if the load often changes, inside-mounted springs are a suitable choice. They allow for significant variation in cargo weight while keeping vibration and noise to a minimum.

Choose RWM Casters for Shock-Absorbing Casters

We invite you to check out our selection of shock-absorbing, spring-loaded casters. If you don’t see the item you need, RWM Casters’ engineering team can design custom casters for you.

Choose from various spring mounts, brakes, swivel locks, yokes, raceways, and finishes to customize the perfect casters for your application and needs. We always strive to deliver superior value by manufacturing products that perform flawlessly in the settings for which they were designed.

To learn more about our shock-absorbing casters or to place an order, please contact RWM Casters online or call 800-634-7704 today.

Shock-Absorbing Industrial Casters

2-125-FNT-2575-S-SA-OMS-LLST-FF


Bearing Selection Guide

sa-caster-1


OPTIONS
BRAKES
CWBCam Wheel Brake
PCWBPoly Cam Wheel Brake
SWIVEL LOCKS
DSLDemountable Swivel Lock
HDSLHeavy Duty Demountable Swivel Lock
LSLL-Type Swivel Lock
SLSwivel Lock
YOKES
NYNotched Yoke
RACEWAYS
SRSealed Raceways
FINISHES
HTPHigh Temperature Paint
ZPZinc Plated

 


Wheel Diameter

Wheel Width

Wheel Type
Swivel Series
Overall Height @ 1/2 Deflections

Swivel Lead

Swivel Radius
Deflection Range*Caster Load Rating Availability (Min-Max)**
Approx Weight
Swivel Caster Model Number**
VMS SA CASTER
6″2″Phenolic448-1/8″1-3/4″4-3/4″7/8″200-8009.044-DUR-0620-S-VMS
6″2″Rubber/Iron448-1/8″1-3/4″4-3/4″1″200-40011.044-RIR-0620-S-VMS
6″2″Urethane448-1/8″1-3/4″4-3/4″1″200-80011.144-UIR-0620-S-VMS
8″2″Phenolic4410″2-1/8″6-1/8″15/16″200-100010.044-DUR-0820-S-VMS
8″2″Rubber/Iron4410″2-1/8″6-1/8″1″200-50012.044-RIR-0820-S-VMS
8″2″Urethane4410″2-1/8″6-1/8″1″200-100012.044-UIR-0820-S-VMS
8″2″Phenolic6511″2-1/8″6-1/8″1-1/4″500-1000-140012.065-DUR-0820-S-VMS
8″2″Rubber/Iron6511″2-1/4″6-1/2″1-1/4″50013.065-RIR-0820-S-VMS
8″2″Urethane6511″2-1/4″6-1/2″1-1/4″500-1000-150013.065-UIR-0820-S-VMS
8″2-1/2″Phenolic7511″2-1/4″6-1/2″1-1/4″500-1000-150013.575-DUR-0825-S-VMS
8″2-1/2″Rubber/Iron7511″2-1/4″6-1/2″1-1/4″500-67015.075-RIR-0825-S-VMS
8″2-1/2″Urethane7511″2-1/4″6-1/2″1-1/4″500-1000-150015.075-UIR-0825-S-VMS
8″2-1/2 “Phenolic2-7511″2″7-1/8″1-1/4″1000-2000-300027.02-75-DUR-0825-S-VMS
8″2-1/2 “Rubber/Iron2-7511″2-1/4″7-1/8″1-1/4″1000-134030.02-75-RIR-0825-S-VMS
8″2-1/2 “Urethane2-7511″2-1/4″7-1/8″1-1/4″1000-2000-300030.02-75-UIR-0825-S-VMS
10″2-1/2 “Phenolic7513″2-3/4″8″1-1/4″500-1000-105015.075-DUR-1025-S-VMS
10″2-1/2 “Rubber/Iron7513″2-3/4″8″1-1/4″500-79020.075-RIR-1025-S-VMS
10″2-1/2 “Urethane7513″2-3/4″8″1-1/4″500-1000-150020.075-UIR-1025-S-VMS
10″2-1/2 “Phenolic2-7513″2-3/4″8″1-1/4″1000-2000-300030.02-75-DUR-1025-S-VMS
10″2-1/2 “Rubber/Iron2-7513″2-3/4″8″1-1/4″1000-150040.02-75-RIR-1025-S-VMS
10″2-1/2 “Urethane2-7513″2-3/4″8″1-1/4″1000-2000-300040.02-75-UIR-1025-S-VMS
10″3″Phenolic2-7513″2-3/4″8-5/8″1-1/4″1000-2000-300038.02-75-DUR-1030-S-VMS
10″3″Rubber/Iron2-7513″2-3/4″8-5/8″1-1/4″1000-200048.02-75-RIR-1030-S-VMS
10″3″Urethane2-7513″2-3/4″8-5/8″1-1/4″1000-2000-300048.02-75-UIR-1030-S-VMS
OMS SA CASTER
12″4″Urethane2-12521″5-1/2″12-3/4″2-1/2″4800-9600290.02-125-UIT-1240-S-OMS
12″4″Urethane Thick 2-125 21″ 5-1/2″ 12-3/4″ 1-1/2″4800-9600290.02-125-UTT-1240-S-OMS
12″5″Urethane12521″5-1/2″12″2-1/2″3250-6000100.0125-UIT-1250-S-OMS
16″5″Urethane12523″5-1/2″14″2-1/2″3250-6500180.0125-UIT-1650-S-OMS
16″5″Urethane Thick 125 23″5-1/2″ 14″ 2-1/2″3250-6500180.0125-UTT-1650-S-OMS
16″5″Urethane2-12523″5-1/2″15″2-1/2″6500-13000400.02-125-UIT-1650-S-OMS
16″5″Urethane Thick 2-125 23″ 5-1/2″ 15″ 2-1/2″6500-13000400.02-125-UTT-1650-S-OMS
18″5″Urethane2-12525″5-1/2″16″2-1/4″8000-16000570.02-125-UIT-1850-S-OMS
20″5″Urethane Iron2-12525-5/8″5-7/8″18-5/8″1-1/2″10000-18000925.02-125-UIT-2050-S-OMS
IMS SA CASTER
4″2″Phenolic657-1/4″2″4-1/8″1-1/16″100-200-25010.065-DUR-0420-S-IMS
4″2″Rubber/Iron657-1/4″2″4-1/8″1-1/16″100-200-25010.065-RIR-0420-S-IMS
4″2″Urethane657-1/4″2″4-1/8″1-1/16″100-200-25010.065-UIR-0420-S-IMS
4″2-1/2″Urethane657-1/4″2″4-1/4″1-1/16″100-200-25010.065-UIB-0425-S-IMS
8″2-1/2″Phenolic7511″4-1/2″8-3/4″1-1/2″500-1000-1500-200013.575-DUR-0825-S-IMS
8″2-1/2″Rubber/Iron7511″4-1/2″8-3/4″1-1/2″67015.075-RIR-0825-S-IMS
8″2-1/2″Urethane7511″4-1/2″8-3/4″1-1/2″1000-1500-200020.075-UIR-0825-S-IMS
8″3″Phenolic7511″4-1/2″8-3/4″1-1/2″1000-1500-200015.075-DUR-0830-S-IMS
8″3″Rubber/Iron7511″4-1/2″8-3/4″1-1/2″84017.075-RIR-0830-S-IMS
8″3″Urethane7511″4-1/2″8-3/4″1-1/2″1000-1500-200027.075-UIT-0830-S-IMS
8″3″Urethane Thick7511″4-1/2″8-3/4″1-1/2″1000-1500-200017.075-UTR-0830-S-IMS
8″3″Phenolic2-8511-1/2″4-1/2″9-3/8″1-1/2″2000-300035.02-85-DUR-0830-S-IMS
8″3″Rubber/Iron2-8511-1/2″4-1/2″9-3/8″1-1/2″168045.02-85-RIR-0830-S-IMS
8″3″Urethane2-8511-1/2″4-1/2″9-3/8″1-1/2″2000-300045.02-85-UIT-0830-S-IMS
8″3″Urethane Thick2-8511-1/2″4-1/2″9-3/8″1-1/2″2000-300045.02-85-UTT-0830-S-IMS
10″2-1/2″Phenolic7513″4-1/2″9-3/4″1-1/2″1100-1650-220015.075-DUR-1025-S-ISM
10″2-1/2″Rubber/Iron7513″4-1/2″9-3/4″1-1/2″79020.075-RIR-1025-S-IMS
10″2-1/2″Urethane7513″4-1/2″9-3/4″1-1/2″1100-1650-220049.075-UIR-1025-S-IMS
10″3″Phenolic7513″4-1/2″9-3/4″1″1100-1650-220018.075-DUR-1030-S-IMS
10″3″Rubber/Iron7513″4-1/2″9-3/4″1″100040.075-RIR-1030-S-IMS
10″3″Urethane7513″4-1/2″9-3/4″1″1100-1650-220023.075-UIT-1030-S-IMS
10″3″Urethane Thick7513″4-1/2″9-3/4″1″1100-1650-220023.075-UTT-1030-S-IMS
10″3″Phenolic2-8513-1/2″4-1/2″10-1/4″1-1/2″2200-3300-440042.02-85-DUR-1030-S-IMS
10″3″Rubber/Iron2-8513-1/2″4-1/2″10-1/4″1-1/2″200052.02-85-RIR-1030-S-IMS
10″3″Urethane2-8513-1/2″4-1/2″10-1/4″1-1/2″2200-3300-440052.02-85-UIT-1030-S-IMS
10″3″Urethane Thick2-8513-1/2″4-1/2″10-1/4″1-1/2″2200-3300-440052.02-85-UTT-1030-S-IMS
10″5″Urethane12515-1/2″4-1/2″10″1-3/4″2200-330080.0125-UIT-1050-S-IMS
12″3″Phenolic7516″5-1/2″11-3/4″1-3/4″1100-2200-330026.075-DUR-1230-S-IMS
12″3″Rubber/Iron7516″5-1/2″11-3/4″1-3/4″110031.075-RIR-1230-S-IMS
12″3″Urethane7516″5-1/2″11-3/4″1-3/4″1100-2200-330047.075-UIT-1230-S-IMS
12″3″Urethane Thick7516″5-1/2″11-3/4″1-3/4″1100-2200-330053.075-UTT-1230-S-IMS
12″3″Phenolic2-8516-1/2″5-1/2″12-1/4″12200-4400-660060.02-85-DUR-1230-S-IMS
12″3″Rubber/Iron2-8516-1/2″5-1/2″12-1/4″1220065.02-85-RIR-1230-S-IMS
12″3″Urethane2-8516-1/2″5-1/2″12-1/4″12200-4400-6600102.02-85-UIT-1230-S-IMS
12″3″Urethane Thick2-8516-1/2″5-1/2″12-1/4″12200-4400-6600116.02-85-UTT-1230-S-IMS
12″5″Urethane12516-1/2″5-1/2″12″2″2200-3300290.0125-UIT-1250-S-IMS

* This represents half deflection at the specified overall height and caster load rating.
** When placing an order, add the operating load to the end of the model number (example: 65-DUR-0820-S-VMS-1000).
‡ This is often called the working height. Add 1/2 of total deflection range to obtain the height at no load (example: 75-DUR-0825-S-VMS-500).
11” overall height plus 5/8” equals 11-5/8” height at no load. All dimensions are nominal. Contact your RWM representative for exact information.