SA (Shock Absorbing) Series Casters

SHOCK ABSORBING CASTERS

RWM Caster’s SA Shock Absorbing Casters:

  • 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.

Types

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!

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

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


Bearing Selection Guide

sa-caster-1


OPTIONS
BRAKES
CWB Cam Wheel Brake
PCWB Poly Cam Wheel Brake
SWIVEL LOCKS
DSL Demountable Swivel Lock
HDSL Heavy Duty Demountable Swivel Lock
LSL L-Type Swivel Lock
SL Swivel Lock
YOKES
NY Notched Yoke
RACEWAYS
SR Sealed Raceways
FINISHES
HTP High Temperature Paint
ZP Zinc 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″ Phenolic 44 8-1/8″ 1-3/4″ 4-3/4″ 7/8″ 200-800 9.0 44-DUR-0620-S-VMS
6″ 2″ Rubber/Iron 44 8-1/8″ 1-3/4″ 4-3/4″ 1″ 200-400 11.0 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 10.0 44-DUR-0820-S-VMS
8″ 2″ Rubber/Iron 44 10″ 2-1/8″ 6-1/8″ 1″ 200-500 12.0 44-RIR-0820-S-VMS
8″ 2″ Urethane 44 10″ 2-1/8″ 6-1/8″ 1″ 200-1000 12.0 44-UIR-0820-S-VMS
8″ 2″ Phenolic 65 11″ 2-1/8″ 6-1/8″ 1-1/4″ 500-1000-1400 12.0 65-DUR-0820-S-VMS
8″ 2″ Rubber/Iron 65 11″ 2-1/4″ 6-1/2″ 1-1/4″ 500 13.0 65-RIR-0820-S-VMS
8″ 2″ Urethane 65 11″ 2-1/4″ 6-1/2″ 1-1/4″ 500-1000-1500 13.0 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 15.0 75-RIR-0825-S-VMS
8″ 2-1/2″ Urethane 75 11″ 2-1/4″ 6-1/2″ 1-1/4″ 500-1000-1500 15.0 75-UIR-0825-S-VMS
8″ 2-1/2 “ Phenolic 2-75 11″ 2″ 7-1/8″ 1-1/4″ 1000-2000-3000 27.0 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 30.0 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 30.0 2-75-UIR-0825-S-VMS
10″ 2-1/2 “ Phenolic 75 13″ 2-3/4″ 8″ 1-1/4″ 500-1000-1050 15.0 75-DUR-1025-S-VMS
10″ 2-1/2 “ Rubber/Iron 75 13″ 2-3/4″ 8″ 1-1/4″ 500-790 20.0 75-RIR-1025-S-VMS
10″ 2-1/2 “ Urethane 75 13″ 2-3/4″ 8″ 1-1/4″ 500-1000-1500 20.0 75-UIR-1025-S-VMS
10″ 2-1/2 “ Phenolic 2-75 13″ 2-3/4″ 8″ 1-1/4″ 1000-2000-3000 30.0 2-75-DUR-1025-S-VMS
10″ 2-1/2 “ Rubber/Iron 2-75 13″ 2-3/4″ 8″ 1-1/4″ 1000-1500 40.0 2-75-RIR-1025-S-VMS
10″ 2-1/2 “ Urethane 2-75 13″ 2-3/4″ 8″ 1-1/4″ 1000-2000-3000 40.0 2-75-UIR-1025-S-VMS
10″ 3″ Phenolic 2-75 13″ 2-3/4″ 8-5/8″ 1-1/4″ 1000-2000-3000 38.0 2-75-DUR-1030-S-VMS
10″ 3″ Rubber/Iron 2-75 13″ 2-3/4″ 8-5/8″ 1-1/4″ 1000-2000 48.0 2-75-RIR-1030-S-VMS
10″ 3″ Urethane 2-75 13″ 2-3/4″ 8-5/8″ 1-1/4″ 1000-2000-3000 48.0 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 290.0 2-125-UIT-1240-S-OMS
12″ 4″ Urethane Thick  2-125  21″  5-1/2″  12-3/4″  1-1/2″ 4800-9600 290.0 2-125-UTT-1240-S-OMS
12″ 5″ Urethane 125 21″ 5-1/2″ 12″ 2-1/2″ 3250-6000 100.0 125-UIT-1250-S-OMS
16″ 5″ Urethane 125 23″ 5-1/2″ 14″ 2-1/2″ 3250-6500 180.0 125-UIT-1650-S-OMS
16″ 5″ Urethane Thick  125  23″ 5-1/2″  14″  2-1/2″ 3250-6500 180.0 125-UTT-1650-S-OMS
16″ 5″ Urethane 2-125 23″ 5-1/2″ 15″ 2-1/2″ 6500-13000 400.0 2-125-UIT-1650-S-OMS
16″ 5″ Urethane Thick  2-125  23″  5-1/2″  15″  2-1/2″ 6500-13000 400.0 2-125-UTT-1650-S-OMS
18″ 5″ Urethane 2-125 25″ 5-1/2″ 16″ 2-1/4″ 8000-16000 570.0 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 925.0 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 10.0 65-DUR-0420-S-IMS
4″ 2″ Rubber/Iron 65 7-1/4″ 2″ 4-1/8″ 1-1/16″ 100-200-250 10.0 65-RIR-0420-S-IMS
4″ 2″ Urethane 65 7-1/4″ 2″ 4-1/8″ 1-1/16″ 100-200-250 10.0 65-UIR-0420-S-IMS
4″ 2-1/2″ Urethane 65 7-1/4″ 2″ 4-1/4″ 1-1/16″ 100-200-250 10.0 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 15.0 75-RIR-0825-S-IMS
8″ 2-1/2″ Urethane 75 11″ 4-1/2″ 8-3/4″ 1-1/2″ 1000-1500-2000 20.0 75-UIR-0825-S-IMS
8″ 3″ Phenolic 75 11″ 4-1/2″ 8-3/4″ 1-1/2″ 1000-1500-2000 15.0 75-DUR-0830-S-IMS
8″ 3″ Rubber/Iron 75 11″ 4-1/2″ 8-3/4″ 1-1/2″ 840 17.0 75-RIR-0830-S-IMS
8″ 3″ Urethane 75 11″ 4-1/2″ 8-3/4″ 1-1/2″ 1000-1500-2000 27.0 75-UIT-0830-S-IMS
8″ 3″ Urethane Thick 75 11″ 4-1/2″ 8-3/4″ 1-1/2″ 1000-1500-2000 17.0 75-UTR-0830-S-IMS
8″ 3″ Phenolic 2-85 11-1/2″ 4-1/2″ 9-3/8″ 1-1/2″ 2000-3000 35.0 2-85-DUR-0830-S-IMS
8″ 3″ Rubber/Iron 2-85 11-1/2″ 4-1/2″ 9-3/8″ 1-1/2″ 1680 45.0 2-85-RIR-0830-S-IMS
8″ 3″ Urethane 2-85 11-1/2″ 4-1/2″ 9-3/8″ 1-1/2″ 2000-3000 45.0 2-85-UIT-0830-S-IMS
8″ 3″ Urethane Thick 2-85 11-1/2″ 4-1/2″ 9-3/8″ 1-1/2″ 2000-3000 45.0 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 15.0 75-DUR-1025-S-ISM
10″ 2-1/2″ Rubber/Iron 75 13″ 4-1/2″ 9-3/4″ 1-1/2″ 790 20.0 75-RIR-1025-S-IMS
10″ 2-1/2″ Urethane 75 13″ 4-1/2″ 9-3/4″ 1-1/2″ 1100-1650-2200 49.0 75-UIR-1025-S-IMS
10″ 3″ Phenolic 75 13″ 4-1/2″ 9-3/4″ 1″ 1100-1650-2200 18.0 75-DUR-1030-S-IMS
10″ 3″ Rubber/Iron 75 13″ 4-1/2″ 9-3/4″ 1″ 1000 40.0 75-RIR-1030-S-IMS
10″ 3″ Urethane 75 13″ 4-1/2″ 9-3/4″ 1″ 1100-1650-2200 23.0 75-UIT-1030-S-IMS
10″ 3″ Urethane Thick 75 13″ 4-1/2″ 9-3/4″ 1″ 1100-1650-2200 23.0 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 42.0 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 52.0 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 52.0 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 52.0 2-85-UTT-1030-S-IMS
10″ 5″ Urethane 125 15-1/2″ 4-1/2″ 10″ 1-3/4″ 2200-3300 80.0 125-UIT-1050-S-IMS
12″ 3″ Phenolic 75 16″ 5-1/2″ 11-3/4″ 1-3/4″ 1100-2200-3300 26.0 75-DUR-1230-S-IMS
12″ 3″ Rubber/Iron 75 16″ 5-1/2″ 11-3/4″ 1-3/4″ 1100 31.0 75-RIR-1230-S-IMS
12″ 3″ Urethane 75 16″ 5-1/2″ 11-3/4″ 1-3/4″ 1100-2200-3300 47.0 75-UIT-1230-S-IMS
12″ 3″ Urethane Thick 75 16″ 5-1/2″ 11-3/4″ 1-3/4″ 1100-2200-3300 53.0 75-UTT-1230-S-IMS
12″ 3″ Phenolic 2-85 16-1/2″ 5-1/2″ 12-1/4″ 1 2200-4400-6600 60.0 2-85-DUR-1230-S-IMS
12″ 3″ Rubber/Iron 2-85 16-1/2″ 5-1/2″ 12-1/4″ 1 2200 65.0 2-85-RIR-1230-S-IMS
12″ 3″ Urethane 2-85 16-1/2″ 5-1/2″ 12-1/4″ 1 2200-4400-6600 102.0 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 116.0 2-85-UTT-1230-S-IMS
12″ 5″ Urethane 125 16-1/2″ 5-1/2″ 12″ 2″ 2200-3300 290.0 125-UIT-1250-S-IMS

* Half deflection at 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
‡ 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.