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4″ Swivel Poly/Steel With Brake Top Plate 4″ x 4-1/2″


  • 72PU40-B
  • Offering exceptional quality, functionality, value and availability
  • This caster class is most recognized and commonly used

If you need assistance in properly calculating the total capacity of your caster requirements, please contact us at (800) 222-7837 or for expert advice in guiding you with the right caster for your application.

Swivel 4" x 2" Poly/Steel With Brake Roller Bearing
Top Plate: 4" x 4-1/2"
Bolt Pattern: 2-5/8" x 3-5/8" to 3" x 3"
Mounting Bolt: 3/8"
Overall Height: 5-5/8" 
Swivel Radius: 3-3/16"
Load Cap 800


    • Double Ball Bearing Raceway Heat Treated For Long Wear And Added Strength 
    • Zinc Plating Standard (Black Oxide Finish Available)
    • 5/8" bolted Kingpin
    • Top Plate And Yoke 1/4" Cold Forged Steel
    • 1/2" diameter Zerk Axle With Lock Nut
    • 3/4" Roller Bearings With Hardened Outer Raceway
    • Hardened Spanner Bushing With Hole And Grease Groove
    • Grease Fitting In Swivel Raceway


Comparable Part Numbers:

  • 16PY04201SFBA
  • 4.04109.949.7BRK7
  • 45-UIR-0420-SWB
  • S-524-DB-CB
  • 27PU40JG0417TY
  • TP6640-01-PCI-TLB
  • WC6640-01-PCI-TLB

Recommended Applications:

  • Platform Trucks
  • Warehouse Carts
  • Dollies (Machinery)
  • Stock Picking Trucks
  • Freight Terminal Carts
  • Food Service Carts
  • Hotel/Housekeeping Carts
  • Excellent Series For Industrial And Commercial Medium/Heavy Duty Equipment
Weight 8.25 lbs
Dimensions 6.00 × 4.50 × 5.63 in

3/4" Roller Bearing

Bolt Hole Pattern

2-5/8" x 3-5/8" to 3 x 3




800 Lbs

Caster Type

Swivel with Brake

Mounting Bolt


Overall Height


Swivel Radius


Tread Width


Top Plate Size

4" x 4-1/2"

Wheel Color

Color May Vary, Green on Black

Wheel Diameter


Wheel Material

Polyurethane on Steel


Albion Casters, Caster Warehouse, Colson Caster, Durable Superior Casters, Hamilton Caster & Mfg. Co., RWM, Superior Casters, Trio Pines Casters

Prop 65 Warning Message

This product may contain chemicals known to the state of CA to cause cancer, and birth defects or other reproductive harm.