casters

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Light Medium Duty Casters

31-POP-0312-W-WB
31-POP-0312-W-WB
Swivel Sections and Cross Sections
Rivet Cross Section
Rivet Cross Section
The RWM Casters 31 Series is perfect for a wide range of light duty industrial caster wheel, institutional caster wheel, material handling, and general purpose caster applications. The heavy duty zinc plate finish is both attractive and corrosion resistant. Swivel models provide greater maneuverability, while rigid models offer straight line mobility. Brake options are available on swivel models only.

The 31 Series general purpose casters are used in a variety of industrial applications and industries including furniture moving, electronics, medical equipment and stands, food service and institutional equipment and carts for hotels, resorts, hospitals, restaurants, schools and many other applications.
Features
Swivel Section: Economical single ball bearing raceway used for most light duty applications
Kingpin: 1/2" diameter kingpin for increased swivel strength
Capacity: 400lbs.
Finish: Zinc plated to protect against corrosion
Wheels: A wide variety of 2" through 4" diameters available with plain bearings
Options
WB: Side Wheel Brake on Swivel only
(not available on the Cast Iron Wheels)
Applications
  • Medical Equipment
  • Food Service
  • Institutional Equipment
  • Hotel/Motel Carts
  • Electronics
  • Furniture
Optional Mounting Plates
Wheel Size Mounting Plate Bolt Hole Spacing Bolt Size
SWIVEL CASTERS
2"1-7/8" x 2-9/16"15/16" x 2-1/8"1/4"
2-1/2"2-3/4" x 3-7/8"1-3/4" x 3"5/16"
3"3-1/8" x 4-1/8"2-3/8" x 3-3/8"5/16"
4"4" x 5-1/8"3" x 4"3/8"
RIGID CASTERS
2"1-1/2" x 2-21/32"15/16" x 2-1/8"1/4"
2-1/2"2-1/4" x 4-7/16"1-1/16" x 3-1/2"5/16"
3"2-1/2" x 4-15/16"1-3/16" x 4"5/16"
4"3-1/8" x 6"1-3/4" x 5"3/8"
Specifications
spec Chart spec Chart spec Chart spec Chart spec Chart spec Chart spec Chart spec Chart
2" 13/16" Cast Iron 150 2-1/2" 31-CIP-0208-S 3/4" 1.1
2" 13/16" Hard Rubber 125 2-1/2" 31-HRP-0208-S 3/4" 0.9
2" 13/16" Polyolefin 125 2-1/2" 31-POP-0208-S 3/4" 0.8
2" 13/16" Soft Rubber 125 2-1/2" 31-SRP-0208-S 3/4" 0.9
2-1/2" 1-1/8" Cast Iron 200 3-1/4" 31-CIP-2511-S 15/16" 1.8
2-1/2" 1-1/8" Hard Rubber 160 3-1/4" 31-HRP-2511-S 15/16" 1.5
2-1/2" 1-1/8" Polyolefin 175 3-1/4" 31-POP-2511-S 15/16" 1.3
2-1/2" 1-1/8" Soft Rubber 175 3-1/4" 31-SRP-2511-S 15/16" 1.4
3" 1-1/4" Cast Iron 250 3-13/16" 31-CIP-0312-S 15/16 " 2.2
3" 1-1/4" Hard Rubber 200 3-13/16" 31-HRP-0312-S 15/16 " 1.8
3" 1-1/4" Polyolefin 225 3-13/16" 31-POP-0312-S 15/16 " 1.3
3" 1-1/4" Soft Rubber 210 3-13/16" 31-SRP-0312-S 15/16 " 1.7
4" 1-1/4 " Cast Iron 400 5" 31-CIP-0412-S 1-1/8" 4.5
4" 1-1/4 " Hard Rubber 350 5" 31-HRP-0412-S 1-1/8" 3.1
4" 1-1/4 " Polyolefin 350 5" 31-POP-0412-S 1-1/8" 2.3
4" 1-1/4 " Soft Rubber 240 5" 31-SRP-0412-S 1-1/8" 3
To order a rigid caster, change the “S" to “R" in the model number. For example, “31-CIP-0208-R". If precise dimensions are required, consult your RWM representative. For approximate weight of our rigid casters, deduct 0.8 pounds per item.