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SA Shock Absorbing Casters

Made in USA

Heavy Duty Shock Absorbing Casters

SA Series
SA Series
2-125-FNT-2575-S-SA-OMS-LLST-FF
2-125-FNT-2575-S-SA-OMS-LLST-FF
RWM Caster's SA Shock Absorbing Casters:
  • Reduce stress on wheels and rigs due to shock from rough surfaces
  • Dampen and isolate shocks and vibration from rough surfaces to protect cargo or contents in a cart or equipment
  • Reduce noise caused by casters traveling over rough surfaces
  • Equalize the load over uneven terrain among four or more casters, thereby reducing overloads on casters and twisting of the cart/frame
Options
CWB: Cam Wheel Brake
DSL: Demountable Swivel Lock - When ordering the Demountable Swivel Lock (DSL), also order the Notched Yoke (NY).
HDSL: Heavy-Duty Threaded Swivel Lock
NY: Notched Yoke Base
PCWB: Poly Cam Wheel Brake
SL:Swivel Lock
SR:Sealed Swivel Raceway
ZP:Zinc Plated
Applications
RWM's Shock Absorbing Casters feature either vertical mount springs, outside mount springs or inside mount springs. These are unique heavy duty industrial spring loaded casters that were designed for specific applications requiring a cushioned ride for product protection from shock and vibration. These industrial casters are ideal for diagnostic and electrical equipment, institutional and laboratory equipment and stands, medical equipment and carts, mobile workstations, computer main frames 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 and many other light to heavy duty applications. The Shock Absorbing Casters or Spring Loaded Casters load ratings vary from 100 to 18,000 pounds and they are proudly Made in the USA.

If you don't see what you want, RWM's engineering team can custom design a caster for any application!
Specifications
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VMS SA CASTER
6" 2" Phenolic 44 8-1/8" 1-3/4" 4-3/4" 7/8" 200-800 9 44-DUR-0620-S-VMS
6" 2" Rubber/Iron 44 8-1/8" 1-3/4" 4-3/4" 1" 200-400 11 44-RIR-0620-S-VMS
6" 2" Urethane 44 8-1/8" 1-3/4" 4-3/4" 1" 200-800 11.1 44-UIR-0620-S-VMS
8" 2" Phenolic 44 10" 2-1/8" 6-1/8" 15/16" 200-1000 10 44-DUR-0820-S-VMS
8" 2" Rubber/Iron 44 10" 2-1/8" 6-1/8" 1" 200-500 12 44-RIR-0820-S-VMS
8" 2" Urethane 44 10" 2-1/8" 6-1/8" 1" 200-1000 12 44-UIR-0820-S-VMS
8" 2" Phenolic 65 11" 2-1/8" 6-1/8" 1-1/4" 500-1000-1400 12 65-DUR-0820-S-VMS
8" 2" Rubber/Iron 65 11" 2-1/4" 6-1/2" 1-1/4" 500 13 65-RIR-0820-S-VMS
8" 2" Urethane 65 11" 2-1/4" 6-1/2" 1-1/4" 500-1000-1500 13 65-UIR-0820-S-VMS
8" 2-1/2" Phenolic 75 11" 2-1/4" 6-1/2" 1-1/4" 500-1000-1500 13.5 75-DUR-0825-S-VMS
8" 2-1/2" Rubber/Iron 75 11" 2-1/4" 6-1/2" 1-1/4" 500-670 15 75-RIR-0825-S-VMS
8" 2-1/2" Urethane 75 11" 2-1/4" 6-1/2" 1-1/4" 500-1000-1500 15 75-UIR-0825-S-VMS
8" 2-1/2 " Phenolic 2-75 11" 2" 7-1/8" 1-1/4" 1000-2000-3000 27 2-75-DUR-0825-S-VMS
8" 2-1/2 " Rubber/Iron 2-75 11" 2-1/4" 7-1/8" 1-1/4" 1000-1340 30 2-75-RIR-0825-S-VMS
8" 2-1/2 " Urethane 2-75 11" 2-1/4" 7-1/8" 1-1/4" 1000-2000-3000 30 2-75-UIR-0825-S-VMS
10" 2-1/2 " Phenolic 75 13" 2-3/4" 8" 1-1/4" 500-1000-1050 15 75-DUR-1025-S-VMS
10" 2-1/2 " Rubber/Iron 75 13" 2-3/4" 8" 1-1/4" 500-790 20 75-RIR-1025-S-VMS
10" 2-1/2 " Urethane 75 13" 2-3/4" 8" 1-1/4" 500-1000-1500 20 75-UIR-1025-S-VMS
10" 2-1/2 " Phenolic 2-75 13" 2-3/4" 8" 1-1/4" 1000-2000-3000 30 2-75-DUR-1025-S-VMS
10" 2-1/2 " Rubber/Iron 2-75 13" 2-3/4" 8" 1-1/4" 1000-1500 40 2-75-RIR-1025-S-VMS
10" 2-1/2 " Urethane 2-75 13" 2-3/4" 8" 1-1/4" 1000-2000-3000 40 2-75-UIR-1025-S-VMS
10" 3" Phenolic 2-75 13" 2-3/4" 8-5/8" 1-1/4" 1000-2000-3000 38 2-75-DUR-1030-S-VMS
10" 3" Rubber/Iron 2-75 13" 2-3/4" 8-5/8" 1-1/4" 1000-2000 48 2-75-RIR-1030-S-VMS
10" 3" Urethane 2-75 13" 2-3/4" 8-5/8" 1-1/4" 1000-2000-3000 48 2-75-UIR-1030-S-VMS
OMS SA CASTER
12" 4" Urethane 2-125 21" 5-1/2" 12-3/4" 2-1/2" 4800-9600 290 2-125-UIT-1240-S-OMS
12" 4" Urethane Thick 2-125 21" 5-1/2" 12-3/4" 2-1/2" 4800-9600 290 2-125-UTT-1240-S-OMS
12" 5" Urethane 125 21" 5-1/2" 12" 2-1/2" 3250-6000 100 125-UIT-1250-S-OMS
16" 5" Urethane 125 23" 5-1/2" 14" 2-1/2" 3250-6500 180 125-UIT-1650-S-OMS
16" 5" Urethane Thick 125 23" 5-1/2" 14" 2-1/2" 3250-6500 180 125-UTT-1650-S-OMS
16" 5" Urethane 2-125 23" 5-1/2" 15" 2-1/2" 6500-13000 400 2-125-UIT-1650-S-OMS
16" 5" Urethane Thick 2-125 23" 5-1/2" 15" 2-1/2" 6500-13000 400 2-125-UTT-1650-S-OMS
18" 5" Urethane 2-125 25" 5-1/2" 16" 2-1/4" 8000-16000 570 2-125-UIT-1850-S-OMS
20" 5" Urethane Iron 2-125 25-5/8" 5-7/8" 18-5/8" 1-1/2" 10000-18000 925 2-125-UIT-2050-S-OMS
IMS SA CASTER
4" 2" Phenolic 65 7-1/4" 2" 4-1/8" 1-1/16" 100-200-250 10 65-DUR-0420-S-IMS
4" 2" Rubber/Iron 65 7-1/4" 2" 4-1/8" 1-1/16" 100-200-250 10 65-RIR-0420-S-IMS
4" 2" Urethane 65 7-1/4" 2" 4-1/8" 1-1/16" 100-200-250 10 65-UIR-0420-S-IMS
4" 2-1/2" Urethane 65 7-1/4" 2" 4-1/4" 1-1/16" 100-200-250 10 65-UIB-0425-S-IMS
8" 2-1/2" Phenolic 75 11" 4-1/2" 8-3/4" 1-1/2" 500-1000-1500-2000 13.5 75-DUR-0825-S-IMS
8" 2-1/2" Rubber/Iron 75 11" 4-1/2" 8-3/4" 1-1/2" 670 15 75-RIR-0825-S-IMS
8" 2-1/2" Urethane 75 11" 4-1/2" 8-3/4" 1-1/2" 1000-1500-2000 20 75-UIR-0825-S-IMS
8" 3" Phenolic 75 11" 4-1/2" 8-3/4" 1-1/2" 1000-1500-2000 15 75-DUR-0830-S-IMS
8" 3" Rubber/Iron 75 11" 4-1/2" 8-3/4" 1-1/2" 840 17 75-RIR-0830-S-IMS
8" 3" Urethane 75 11" 4-1/2" 8-3/4" 1-1/2" 1000-1500-2000 27 75-UIT-0830-S-IMS
8" 3" Urethane Thick 75 11" 4-1/2" 8-3/4" 1-1/2" 1000-1500-2000 17 75-URT-0830-S-IMS
8" 3" Phenolic 2-85 11-1/2" 4-1/2" 9-3/8" 1-1/2" 2000-3000 35 2-85-DUR-0830-S-IMS
8" 3" Rubber/Iron 2-85       1-1/2" 1680 45 2-85-RIR-0830-S-IMS
8" 3" Urethane 2-85       1-1/2" 2000-3000 45 2-85-UIT-0830-S-IMS
8" 3" Urethane Thick 2-85       1-1/2" 2000-3000 45 2-85-UTT-0830-S-IMS
10" 2-1/2" Phenolic 75 13" 4-1/2" 9-3/4" 1-1/2" 1100-1650-2200 15 75-DUR-1025-S-ISM
10" 2-1/2" Rubber/Iron 75 13" 4-1/2" 9-3/4" 1-1/2" 790 20 75-RIR-1025-S-IMS
10" 2-1/2" Urethane 75 13" 4-1/2" 9-3/4" 1-1/2" 1100-1650-2200 49 75-UIR-1025-S-IMS
10" 3" Phenolic 75 13" 4-1/2" 9-3/4" 1" 1100-1650-2200 18 75-DUR-1030-S-IMS
10" 3" Rubber/Iron 75 13" 4-1/2" 9-3/4" 1" 1000 40 75-RIR-1030-S-IMS
10" 3" Urethane 75 13" 4-1/2" 9-3/4" 1" 1100-1650-2200 23 75-UIT-1030-S-IMS
10" 3" Urethane Thick 75 13" 4-1/2" 9-3/4" 1" 1100-1650-2200 23 75-UTT-1030-S-IMS
10" 3" Phenolic 2-85 13-1/2" 4-1/2" 10-1/4" 1-1/2" 2200-3300-4400 42 2-85-DUR-1030-S-IMS
10" 3" Rubber/Iron 2-85 13-1/2" 4-1/2" 10-1/4" 1-1/2" 2000 52 2-85-RIR-1030-S-IMS
10" 3" Urethane 2-85 13-1/2" 4-1/2" 10-1/4" 1-1/2" 2200-3300-4400 52 2-85-UIT-1030-S-IMS
10" 3" Urethane Thick 2-85 13-1/2" 4-1/2" 10-1/4" 1-1/2" 2200-3300-4400 52 2-85-UTT-1030-S-IMS
10" 5" Urethane 125 15-1/2" 4-1/2" 10" 1-3/4" 2200-3300 80 125-UIT-1050-S-IMS
12" 3" Phenolic 75 16" 5-1/2" 11-3/4" 1-3/4" 1100-2200-3300 26 75-DUR-1230-S-IMS
12" 3" Rubber/Iron 75 16" 5-1/2" 11-3/4" 1-3/4" 1100 31 75-RIR-1230-S-IMS
12" 3" Urethane 75 16" 5-1/2" 11-3/4" 1-3/4" 1100-2200-3300 47 75-UIT-1230-S-IMS
12" 3" Urethane Thick 75 16" 5-1/2" 11-3/4" 1-3/4" 1100-2200-3300 53 75-UTT-1230-S-IMS
12" 3" Phenolic 2-85 16-1/2" 5-1/2" 12-1/4" 1" 2200-4400-6600 60 2-85-DUR-1230-S-IMS
12" 3" Rubber/Iron 2-85 16-1/2" 5-1/2" 12-1/4" 1" 2200 65 2-85-RIR-1230-S-IMS
12" 3" Urethane 2-85 16-1/2" 5-1/2" 12-1/4" 1" 2200-4400-6600 102 2-85-UIT-1230-S-IMS
12" 3" Urethane Thick 2-85 16-1/2" 5-1/2" 12-1/4" 1" 2200-4400-6600 116 2-85-UTT-1230-S-IMS
12" 5" Urethane 125 16-1/2" 5-1/2" 12" 2" 2200-3300 290 125-UIT-1250-S-IMS
* Half deflection at specified overall height and caster load rating.
** When placing an order, add the capacity to the end of the model number. Example: 65-DUR-0820-S-VMS-1000
‡ Often called working height. Add 1/2 of total deflection range to obtain 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 RWM representative for exact information.