21 Series Light-Medium Duty Casters - 5 Inch

Manufacturer: Stromberg

In Stock 2
F.O.B. Oregon Warehouse
Red Hot Special while Supplies Last.


Great general use casters with a variety of wheel options available. Ergonomically designed to reduce the risk of accidents and injuries to operators, they improve dangerous work conditions created by wrong wheels for the floor surface, worn-flat wheels, worn holes or sockets, bent stems, locked raceway or missing ball bearings.

Some uses of these casters include replacement of casters for home, office and industrial furniture and equipment

  • Overall Size: 2-1/2" x 3-5/8"
  • Bolt Hole Spacing: 1-3/4" x 2-7/8" to 3"
  • Attaching Bolt Size: 5/16"
  • Available in Black on Gray.
  • Custom colors available only by special order.


10 Models Available for
21 Series Light-Medium Duty Casters - 5 Inch

*Prices subject to change without notice

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Model No. Style Wheel Size Overall Height Wheel Type Capacity Weight Price Ea. Qty
21-50S-A1-SBB Swivel 5" Diameter x 1-1/4" Wide 6-7/32" Soft Rubber / Ball Bearing 165 lbs. 3 lbs. $9.65
21-50R-A1-SBB Rigid 5" Diameter x 1-1/4" Wide 6-7/32" Soft Rubber / Ball Bearing 165 lbs. 3 lbs. $8.02
21-50S-A1-HBB Swivel 5" Diameter x 1-1/4" Wide 6-7/32" Hard Rubber / Ball Bearing 265 lbs. 3 lbs. $9.65
21-50R-A1-HBB Rigid 5" Diameter x 1-1/4" Wide 6-7/32" Hard Rubber / Ball Bearing 265 lbs. 3 lbs. $8.02
21-50S-A1-RA Swivel 5" Diameter x 1-1/4" Wide 6-7/32" Gray Rubber Tread / Annular Bearing 265 lbs. 2.4 lbs. $11.93
21-50R-A1-RA Rigid 5" Diameter x 1-1/4" Wide 6-7/32" Gray Rubber Tread / Annular Bearing 265 lbs. 2.4 lbs. $9.76
21-50S-A1-HP Swivel 5" Diameter x 1-1/4" Wide 6-7/32" Heavy Duty Plastic 300 lbs. 2.7 lbs. $7.38
21-50R-A1-HP Rigid 5" Diameter x 1-1/4" Wide 6-7/32" Heavy Duty Plastic 300 lbs. 2.7 lbs. $5.53
21-50S-A1-PB Swivel 5" Diameter x 1-1/4" Wide 6-7/32" Polyurethane 265 lbs. 2.2 lbs. $12.70
21-50R-A1-PB Rigid 5" Diameter x 1-1/4" Wide 6-7/32" Polyurethane 265 lbs. 2.2 lbs. $11.05
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2 Options Available for
21 Series Light-Medium Duty Casters - 5 Inch

21 Series Light-Medium Duty Casters - 5 Inch Option Image

Option: Top Lock Brake

F.O.B. West Coast Warehouse

Upgrade Standard caster with optional top lock brake. Priced per caster

Model No. Price Ea. Qty
Top_Lock_Brake $2.92
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Option: Thread Guard

Upgrade standard caster with optional thread guard. Priced per caster.

Model No. Price Ea. Qty
ThreadGuard $0.98
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