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Stromberg 4 Inch 21 Series Light-Medium Duty Caster Model No. 21-40S-A1-PB
  • Stromberg 4 Inch 21 Series Light-Medium Duty Caster Model No. 21-40S-A1-PB
  • Stromberg 4 Inch 21 Series Light-Medium Duty Caster Model No. 21-40S-A1-RA (3.5 inch shown)
  • Stromberg 4 Inch 21 Series Light-Medium Duty Caster Model No. 21-40R-A1-RA
  • Stromberg 4 Inch 21 Series Light-Medium Duty Caster Model No. 21-40R-A1-HP
  • Stromberg 4 Inch 21 Series Light-Medium Duty Caster Model No. 21-40S-A1-HBB (20 series shown)
  • Stromberg 4 Inch 21 Series Light-Medium Duty Caster Model No. 21-40S-A1-SBB (20 series shown)
  • Stromberg 4 Inch 21 Series Light-Medium Duty Caster Swivel Plate
  • Stromberg 4 Inch 21 Series Light-Medium Duty Caster Rigid Plate

21 Series Light-Medium Duty Casters - 4 Inch

Manufacturer: Stromberg

FOB: Oregon Warehouse

In Stock

Discount Applied:
10-39  SAVE 10%
40-79  SAVE 20%
80+  Please Inquire


Great general use casters with a variety of wheel type options available. Ideal replacement casters for home, office and industrial furniture and equipment.

  • Overall Height: 5-1/8".
  • Top Plate: 2-1/2"x3-5/8".
  • Bolt Hole Spacing: 1-3/4"x2-7/8" to 3"
  • Wheels: 4"Dx1-1/4"W.
  • Available colors: Red or Blue.
  • Custom colors are available only through special order.
If you need a large quantity of this product, call us at 1-800-338-1382 for additional bulk discounts!

10 Products Available for 21 Series Light-Medium Duty Casters - 4 Inch

  • Prices subject to change without notice

Products without prices are not available for purchase through our shopping cart.

If you are interested in these products, add them to your quote list by click the red button bellow.

Model No.StyleWheel SizeOverall HeightWheel TypeCapacityWeightPrice Ea.Qty
21-40S-A1-SBBSwivel4" Diameter x 1-1/4" Wide5-1/8"Soft Rubber / Ball Bearing165 lbs.2.4 lbs. $8.74
21-40R-A1-SBBRigid4" Diameter x 1-1/4" Wide5-1/8"Soft Rubber / Ball Bearing165 lbs.2.4 lbs. $7.93
21-40S-A1-HBBSwivel4" Diameter x 1-1/4" Wide5-1/8"Hard Rubber / Ball Bearing265 lbs.2.4 lbs. $8.74
21-40R-A1-HBBRigid4" Diameter x 1-1/4" Wide5-1/8"Hard Rubber / Ball Bearing265 lbs.2.4 lbs. $7.93
21-40S-A1-RASwivel4" Diameter x 1-1/4" Wide5-1/8"Gray Rubber Tread / Annular Bearing265 lbs.2.1 lbs. $10.30
21-40R-A1-RARigid4" Diameter x 1-1/4" Wide5-1/8"Gray Rubber Tread / Annular Bearing265 lbs.2.1 lbs. $8.18
21-40S-A1-HPSwivel4" Diameter x 1-1/4" Wide5-1/8"Heavy Duty Plastic265 lbs.1.8 lbs. $5.96
21-40R-A1-HPRigid4" Diameter x 1-1/4" Wide5-1/8"Heavy Duty Plastic265 lbs.1.8 lbs. $4.34
21-40S-A1-PBSwivel4" Diameter x 1-1/4" Wide5-1/8"Polyurethane265 lbs.2 lbs. $12.02
21-40R-A1-PBRigid4" Diameter x 1-1/4" Wide5-1/8"Polyurethane265 lbs.2 lbs. $10.30
All Items in Red are in Stock
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