Polyurethane, spring loaded
SKU: 3310R4A
Series 33
4 X 2 Polyurethane Steel Rigid Caster
Wheel Type: 95A Black Poly
Max Capacity: 675 Lbs.
Wheel Diameter 4"
Wheel Type 95A Black Poly
Deflection Range 1"
OAH Full Flexed Height 6 5/16"
Bolt Hole Spacing 3 5/8 x 2 5/8
Plate Dimensions 4 1/2 x 3 3/4
Wheel Width 2"
Wheel Configuration Single
Swivel Radius N/A"
OAH Non-Flexed Height 7 5/16"
Bolt Size 3/8"
Weight 14 1/2 Lbs.

Vari-Flex Design : Achieves optimal shock reduction and drastically reduces shimmy, dynamic bounce and resonance, even when the cart is empty or loaded beyond its maximum rated capacity. Vari-Flex design utilizes an average of 50% of the casters rated weight capacity, ensuring performance even if loaded beyond rated capacity (this is not recommended).

Ideal For:

  • Light duty material handling equipment
  • Medium to heavy duty electronic equipment
  • Heavy duty copier and office equipment


  • Wheel type and material dependent upon application
  • Brakes available
  • Optional size mounting plates available