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3" Stem Rigid Caster

3" rigid stem caster
Farnham: 331
Los Angeles: 243
Lawrenceville: 274
  • 3 inches (74 mm) diameter wheel
  • 150 pounds (68 kg) loading capacity
  • 2.5Mph maximum speed

3 inches rigid stem caster with a loading capacity of 150 pounds (68 kg) and a maximum speed of 2.5Mph. The stem-mount is made with a rubber bushing that expands into a 28 mm steel pipe to keep the wheel in place. You will need to secure the wheel by placing it on a connector with WF-U5/16 U-Bolt (included with the caster). See the Installation Steps tab for more information on how to install W-3EF casters.

Bolt size M12 (12 mm) Length 2 1/4" (57.15 mm)

Use the F-BUS component when this caster is used with the EP-96-ST pipe.

3 inches casters are made for:

  • More or less long trips (30 to 60 feet)
  • Frequent use (40 to 80 times a day)
  • Carts weighting less than 400 pounds 
  • Narrow carts (between 16 and 24 in. wide)

For more frequent use or longer trips, we recommend considering the W-4EF caster.

For carts that will go outside, roll on ramps or damaged floors, it's preferable to use 6 inches casters.

All casters are equipped with a precision ball bearing.

More Information
Box Quantity40
Height4 1/16 in (104 mm)
Width1 1/8 in (29 mm)
Weight1.2 lb (0.53 kg)
Box DimensionsCardboard box of 11 X 9 X 5 in (279 mm X 229 mm X 127 mm)
Primary MaterialThermoplastic Rubber (TPR)
Temperature Resistance-22°F to 158°F (-30°C to 70°C)
Electric Conductivity (ESD)No
Loading Capacity150 lb (68 kg)
  1. Ensure you have the following parts:
    • 1x W-3EF
    • 1x WF-U5/16 U-bolt - included with the caster.
    • 2x WF-U5/16 nuts - included with the caster.
    • 1x WF-U5/16 metal plate - included with the caster.
    • 1x 28mm pipe of your choice
    • 1x Ratchet Wrench 3/4 in.
    • 1x Ratchet Wrench 5/16 in.
  2. Ensure that the structure is levelled when supported by the pipes that will be wheeled. Otherwise, the height difference might cause the structure to sway.
  3. Flip the structure for a better access to the bottom pipes.
  4. Unscrew the 3/4 in. bolt underneath the plate of the caster using the wrench.
  5. Tighten the nut located on the top of the stem for the rubber bushing to expend until it barely fits inside the pipe.
  6. Insert the wheel rod completely inside the pipe. Help yourself with a mallet if needed.
  7. Tighten the same 3/4 in. bolt using the wrench 3/4 and let the wheel rotate until it grips firmly inside the pipe.
  8. Place the WF-U5/16 metal plate between the pipe and the caster and aligned it with the corresponding openings.
  9. Insert the WF-U5/16 U-bolt in the openings in order to trap the tube inside the U-bolt.
  10. Tighten the WF-U5/16 nuts with the U-bolt using the wrench 5/16.

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