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


  • 54PU50
  • Designed for ultimate solution of traditional casters with kingpin being loosened from lateral force
  • Inner raceway is forged integrally with the top plate
  • Load cap up to 2500lb

Swivel 5" x 2" Poly Steel 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: 6-1/2"
Swivel Radius: 3-3/4"
Load Cap 1100

      • Unique Hot Forged ASTM1045 Steel Kingpinless Design Eliminates Problems Associated With Kingpin Failure Due To Severe Shock Loading
      • Top Plate And Inner Raceway Are Integrally Forged Construction
      • Precision Machined And Induction Hardened Sealed Raceway Provides Exceptionally Smooth Performance
      • 3/8" Diameter HRC45 Steel Ball Bearings Withstand Shock Loading In Severe Environments
      • Grease Fittings In Swivel Raceway
      • Zinc Plated


Comparable Part Numbers:

  • 110PY05228S
  • 40CS520PU2303
  • 45PU50JG0417YY
  • 48-UIR-0520-S

Recommended Applications:

  • Tow Line & Shock Load Applications
  • Air Cargo & Ground Support
  • Platform Trucks & Storage Carts
  • Warehousing & Freight Terminal Dollies
  • Military Equipment
Weight 8.52 lbs
Dimensions 7.00 × 4.00 × 6.50 in

Rolling Bearing

Bolt Hole Pattern

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


1100 Lbs

Caster Type

Kingpinless, Swivel

Mounting Bolt


Overall Height


Swivel Radius


Tread Width


Top Plate Size

4" x 4-1/2"

Wheel Color

Green on Black

Wheel Diameter


Wheel Material

Polyurethane on Steel, PU


Albion Casters, Durable USA, Durastar, RWM, Superior 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.