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20 Series General Duty Casters

Manufacturer: Stromberg

Volume Discounts Apply

Ideal for stock carts, bakery racks, food service equipment and more. 
 
  • Double row ball bearing swivel raceway construction.
  • Heavily embossed, formed steel double cup.
  • Bright zinc finish. Other finishes also available.
  • Attaching bolt size: 3/8".
  • Overall A1 plate size: 2-3/8"x3-5/8".
  • Bolt hole spacing: 1-3/4"x2-11/16" to 2-15/16".
  • Octa top raceway available.

Prices shown are for casters with the A1 top plate, more fastening options are shown in the Options tab, including A2 and A3 top plates, threaded stem, grip ring stem, round stem, and octagon stem. If you need a large quantity of this product, call us at 1-800-338-1382 for additional bulk discounts!
  • Model Info

80 Models Available for 20 Series General Duty Casters

  • Prices subject to change without notice

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Model No. Style Wheel Size Type Bearing Axle Diameter Overall Height Swivel Radius Load Capacity Price EA. Qty
S20-30-S-A1-SR Swivel 3" Diameter x 1-1/4" Wide Soft Rubber Nylon 3/8" 4-1/4" 3" 125 lbs. $4.11
S20-30-S-A1-SBB Swivel 3" Diameter x 1-1/4" Wide Soft Rubber Ball 3/8" 4-1/4" 3" 125 lbs. $5.60
S20-30-S-A1-HR Swivel 3" Diameter x 1-1/4" Wide Hard Rubber Lyon 3/8" 4-1/4" 3" 220 lbs. $4.11
S20-30-S-A1-HBB Swivel 3" Diameter x 1-1/4" Wide Hard Rubber Ball 3/8" 4-1/4" 3" 220 lbs. $5.60
S20-30-S-A1-LP Swivel 3" Diameter x 1-1/4" Wide Light Duty Plastic Plain 3/8" 4-1/4" 3" 220 lbs. $3.50
S20-30-S-A1-HP Swivel 3" Diameter x 1-1/4" Wide Heavy Duty Plastic Plain 3/8" 4-1/4" 3" 300 lbs. $3.87
S20-30-S-A1-PU Swivel 3" Diameter x 1-1/4" Wide Polyurethane Plain 3/8" 4-1/4" 3" 220 lbs. $5.41
S20-30-S-A1-PB Swivel 3" Diameter x 1-1/4" Wide Polyurethane Ball/Delrin 3/8" 4-1/4" 3" 240 lbs. $6.84
S20-30-S-A1-INF Swivel 3" Diameter x 1-1/4" Wide Infiniti Annular/Delrin 3/8" 4-1/4" 3" 220 lbs. $6.32
S20-30-S-A1-PH Swivel 3" Diameter x 1-1/4" Wide Phenolic Steel Bushing 3/8" 4-1/4" 3" 250 lbs. $6.22
S20-30-S-A1-SS Swivel 3" Diameter x 1-1/4" Wide Steel Plain 3/8" 4-1/4" 3" 250 lbs. $5.36
S20-30-R-A1-SR Rigid 3" Diameter x 1-1/4" Wide Soft Rubber Nylon 3/8" 4-1/4" 3" 125 lbs. $2.91
S20-30-R-A1-SBB Rigid 3" Diameter x 1-1/4" Wide Soft Rubber Bal 3/8" 4-1/4" 3" 125 lbs. $4.36
S20-30-R-A1-HR Rigid 3" Diameter x 1-1/4" Wide Hard Rubber Nylon 3/8" 4-1/4" 3" 220 lbs. $2.91
S20-30-R-A1-HBB Rigid 3" Diameter x 1-1/4" Wide Hard Rubber Ball 3/8" 4-1/4" 3" 220 lbs. $4.36
S20-30-R-A1-LP Rigid 3" Diameter x 1-1/4" Wide Light Duty Plastic Plain 3/8" 4-1/4" 3" 220 lbs. $2.29
S20-30-R-A1-HP Rigid 3" Diameter x 1-1/4" Wide Heavy Duty Plastic Plain 3/8" 4-1/4" 3" 300 lbs. $2.66
S20-30-R-A1-PU Rigid 3" Diameter x 1-1/4" Wide Polyurethane Plain 3/8" 4-1/4" 3" 220 lbs. $4.20
S20-30-R-A1-PB Rigid 3" Diameter x 1-1/4" Wide Polyurethane Ball/Delrin 3/8" 4-1/4" 3" 240 lbs. $5.40
S20-30-R-A1-INF Rigid 3" Diameter x 1-1/4" Wide Infiniti Annular/Delrin 3/8" 4-1/4" 3" 220 lbs. $4.69
S20-30-R-A1-PH Rigid 3" Diameter x 1-1/4" Wide Phenolic Steel Bushing 3/8" 4-1/4" 3" 250 lbs. $5.02
S20-30-R-A1-SS Rigid 3" Diameter x 1-1/4" Wide Steel Plain 3/8" 4-1/4" 3" 250 lbs. $4.14
S20-35-S-A1-SR Swivel 3 1/2" x 1-1/4" Diameter Soft Rubber Nylon 3/8" 4-1/2" 3" 130 lbs. $4.32
S20-35-S-A1-HR Swivel 3 1/2" x 1-1/4" Diameter Hard Rubber Nylon 3/8" 4-1/2" 3" 225 lbs. $4.32
S20-35-S-A1-HP Swivel 3 1/2" x 1-1/4" Diameter Heavy Duty Plastic Plain 3/8" 4-1/2" 3" 300 lbs. $6.41
S20-35-S-A1-PB Swivel 3 1/2" x 1-1/4" Diameter Polyurethane Ball/Delrin 3/8" 4-1/2" 3" 260 lbs. $6.89
S20-35-S-A1-INF Swivel 3 1/2" x 1-1/4" Diameter Infiniti Annular/Delrin 3/8" 4-1/2" 3" 250 lbs. $6.36
S20-35-S-A1-RA Swivel 3 1/2" x 1-1/4" Diameter Gray Rubber or Aluminum Annular 3/8" 4-1/2" 3" 220 lbs. $9.00
S20-35-R-A1-SR Rigid 3 1/2" Diameter x 1-1/4" Wide Soft Rubber Nylon 3/8" 4-1/2" 3" 130 lbs. $3.11
S20-35-R-A1-HR Rigid 3 1/2" Diameter x 1-1/4" Wide Hard Rubber Nylon 3/8" 4-1/2" 3" 225 lbs. $3.11
S20-35-R-A1-HP Rigid 3 1/2" Diameter x 1-1/4" Wide Heavy Duty Plastic Plain 3/8" 4-1/2" 3" 300 lbs. $5.40
S20-35-R-A1-PB Rigid 3 1/2" Diameter x 1-1/4" Wide Polyurethane Ball/Delrin 3/8" 4-1/2" 3" 260 lbs. $5.62
S20-35-R-A1-INF Rigid 3 1/2" Diameter x 1-1/4" Wide Infiniti Annular/Delrin 3/8" 4-1/2" 3" 250 lbs. $4.87
S20-35-R-A1-RA Rigid 3 1/2" Diameter x 1-1/4" Wide Grey Rubber or Aluminum Annular 3/8" 4-1/2" 3" 220 lbs. $6.34
S20-40-S-A1-SR Swivel 4" Diameter x 1-1/4" Wide Soft Rubber Nylon 3/8" 5-1/8" 3-1/2" 165 lbs. $5.38
S20-40-S-A1-SBB Swivel 4" Diameter x 1-1/4" Wide Soft Rubber Ball 3/8" 5-1/8" 3-1/2" 165 lbs. $6.57
S20-40-S-A1-HR Swivel 4" Diameter x 1-1/4" Wide Hard Rubber Nylon 3/8" 5-1/8" 3-1/2" 265 lbs. $5.38
S20-40-S-A1-HBB Swivel 4" Diameter x 1-1/4" Wide Hard Rubber Ball 3/8" 5-1/8" 3-1/2" 265 lbs. $6.57
S20-40-S-A1-LP Swivel 4" Diameter x 1-1/4" Wide Light Duty Plastic Plain 3/8" 5-1/8" 3-1/2" 275 lbs. $4.00
S20-40-S-A1-HP Swivel 4" Diameter x 1-1/4" Wide Heavy Duty Plastic Plain 3/8" 5-1/8" 3-1/2" 375 lbs. $4.95
S20-40-S-A1-PB Swivel 4" Diameter x 1-1/4" Wide Polyurethane Ball/Delrin 3/8" 5-1/8" 3-1/2" 280 lbs. $8.49
S20-40-S-A1-INF Swivel 4" Diameter x 1-1/4" Wide Infiniti Annular/Delrin 3/8" 5-1/8" 3-1/2" 300 lbs. $6.86
S20-40-S-A1-SS Swivel 4" Diameter x 1-1/4" Wide Steel Plain 3/8" 5-1/8" 3-1/2" 300 lbs. $10.23
S20-40-S-A1-RA Swivel 4" Diameter x 1-1/4" Wide Grey Rubber or Aluminum Annular 3/8" 5-1/8" 3-1/2" 240 lbs. $8.47
S20-40-S-A1-PH Swivel 4" Diameter x 1-1/4" Wide Phenolic Steel Bushing 3/8" 5-1/8" 3-1/2" 300 lbs. $6.84
S20-40-S-A1-HTP Swivel 4" Diameter x 1-1/4" Wide High Temperature Plain 3/8" 5-1/8" 3-1/2" 240 lbs. $11.09
S20-40-R-A1-SR Rigid 4" Diameter x 1-1/4" Wide Soft Rubber Nylon 3/8" 5-1/8" 3-1/2" 165 lbs. $4.04
S20-40-R-A1-SBB Rigid 4" Diameter x 1-1/4" Wide Soft Rubber Ball 3/8" 5-1/8" 3-1/2" 165 lbs. $5.23
S20-40-R-A1-HR Rigid 4" Diameter x 1-1/4" Wide Hard Rubber Nylon 3/8" 5-1/8" 3-1/2" 265 lbs. $4.04
S20-40-R-A1-HBB Rigid 4" Diameter x 1-1/4" Wide Hard Rubber Ball 3/8" 5-1/8" 3-1/2" 265 lbs. $5.23
S20-40-R-A1-LP Rigid 4" Diameter x 1-1/4" Wide Light Duty Plastic Plain 3/8" 5-1/8" 3-1/2" 275 lbs. $2.69
S20-40-R-A1-HP Rigid 4" Diameter x 1-1/4" Wide Heavy Duty Plastic Plain 3/8" 5-1/8" 3-1/2" 375 lbs. $3.57
S20-40-R-A1-PB Rigid 4" Diameter x 1-1/4" Wide Polyurethane Ball/Delrin 3/8" 5-1/8" 3-1/2" 280 lbs. $6.41
S20-40-R-A1-INF Rigid 4" Diameter x 1-1/4" Wide Infiniti Annular/Delrin 3/8" 5-1/8" 3-1/2" 300 lbs. $5.50
S20-40-R-A1-SS Rigid 4" Diameter x 1-1/4" Wide Steel Plain 3/8" 5-1/8" 3-1/2" 300 lbs. $8.91
S20-40-R-A1-RA Rigid 4" Diameter x 1-1/4" Wide Grey Rubber or Aluminum Annular 3/8" 5-1/8" 3-1/2" 240 lbs. $7.14
S20-40-R-A1-PH Rigid 4" Diameter x 1-1/4" Wide Phenolic Steel Bushing 3/8" 5-1/8" 3-1/2" 300 lbs. $5.50
S20-40-R-A1-HTP Rigid 4" Diameter x 1-1/4" Wide High Temperature Plain 3/8" 5-1/8" 3-1/2" 240 lbs. $9.78
S20-50-S-A1-SR Swivel 5" Diameter x 1-1/4" Wide Soft Rubber Nylon 3/8" 6- 5/32" 4" 175 lbs. $6.49
S20-50-S-A1-SBB Swivel 5" Diameter x 1-1/4" Wide Soft Rubber Ball 3/8" 6-5/32" 4" 175 lbs. $7.56
S20-50-S-A1-HR Swivel 5" Diameter x 1-1/4" Wide Hard Rubber Nylon 3/8" 6-5/32" 4" 300 lbs. $6.49
S20-50-S-A1-HBB Swivel 5" Diameter x 1-1/4" Wide Hard Rubber Ball 3/8" 6-5/32" 4" 300 lbs. $7.56
S20-50-S-A1-LP Swivel 5" Diameter x 1-1/4" Wide Light Duty Plastic Palin 3/8" 6-5/32" 4" 300 lbs. $4.62
S20-50-S-A1-HP Swivel 5" Diameter x 1-1/4" Wide Heavy Duty Plastic Plain 3/8" 6-5/32" 4" 320 lbs. $5.29
S20-50-S-A1-PB Swivel 5" Diameter x 1-1/4" Wide Polyurethane Ball/Delrin 3/8" 6-5/32" 4" 300 lbs. $6.84
S20-50-S-A1-INF Swivel 5" Diameter x 1-1/4" Wide Infinitie Annular/Delrin 3/8" 6-5/32" 4" 265 lbs. $7.89
S20-50-S-A1-RA Swivel 5" Diameter x 1-1/4" Wide Grey Rubber on Aluminum Annular 3/8" 6-5/32" 4" 265 lbs. $10.59
S20-50-S-A1-PH Swivel 5" Diameter x 1-1/4" Wide Phenolic Steel Bushing 3/8" 6-5/32" 4" 320 lbs. $8.29
S20-50-S-A1-HTP Swivel 5" Diameter x 1-1/4" Wide High Temperature Plain 3/8" 6-5/32" 4" 300 lbs. $19.84
S20-50-R-A1-SR Rigid 5" Diameter x 1-1/4" Wide Soft Rubber Nylon 3/8" 6-5/32" 4" 175 lbs. $5.02
S20-50-R-A1-SBB Rigid 5" Diameter x 1-1/4" Wide Soft Rubber Ball 3/8" 6-5/32" 4" 175 lbs. $6.11
S20-50-R-A1-HR Rigid 5" Diameter x 1-1/4" Wide Hard Rubber Nylon 3/8" 6-5/32" 4" 300 lbs. $5.02
S20-50-R-A1-LBB Rigid 5" Diameter x 1-1/4" Wide Hard Rubber Ball 3/8" 6-5/32" 4" 300 lbs. $6.11
S20-50-R-A1-LP Rigid 5" Diameter x 1-1/4" Wide Light Duty Plastic Plain 3/8" 6-5/32" 4" 300 lbs. $3.16
S20-50-R-A1-HP Rigid 5" Diameter x 1-1/4" Wide Heavy Duty Plastic Plain 3/8" 6-5/32" 4" 320 lbs. $3.87
S20-50-R-A1-PB Rigid 5" Diameter x 1-1/4" Wide Polyurethane Ball/Delrin 3/8" 6-5/32" 4" 300 lbs. $5.34
S20-50-R-A1-INF Rigid 5" Diameter x 1-1/4" Wide Infiniti Annula/Delrin 3/8" 6-5/32" 4" 265 lbs. $6.41
S20-50-R-A1-RA Rigid 5" Diameter x 1-1/4" Wide Grey Rubber on Aluminum Annular 3/8" 6-5/32" 4" 265 lbs. $9.14
S20-50-R-A1-PH Rigid 5" Diameter x 1-1/4" Wide Phenolic Steel Bushing 3/8" 6-5/32" 4" 320 lbs. $6.87
S20-50-R-A1-HTP Rigid 5" Diameter x 1-1/4" Wide High Temperature Plain 3/8" 6-5/32" 4" 300 lbs. $18.38
All items in RED ship express from our warehouses.

5 Options Available for 20 Series General Duty Casters

Option:S20 General Duty Caster Top Plates

Model No. Overall Size Bolt Hole Spacing Ataching Bolt size Price Ea. Qty
A1 2 3/8" x 3 5/8" 1 3/4" x 2 11/16" to 2 1516" 5/16" AS SHOWN ABOVE
A2 3 1/8" x 4 1/8" 1 3/4" x 2 15/16" to 2 3/8" x 3 3/8" 3/8" $0.47
A3 3 15/16" x 4 1/2" 2 5/8" x 3 5/8" x 3 3/8" 3/8" $0.90
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20 Series General Duty Casters Option Image

Option:Threaded Stem

Model No. Specification Price Ea. Qty
B1-THREADED 1/2" x UNC 13" x 1 $0.20
B2-THREADED 1/2" x UNC 13" x 1 1/2" $0.20
B3-THREADED 5/8" x UNC 11" x 1 1/4" $1.96
B4-THREADED 1/2" x UNC 13" x 2" $0.29
B5-THREADED 1/2" x UNC 20" x 3" $0.58
B6-THREADED 7/16" x UNC 14" x 7/8" $0.20
B7-THREADED 1/2" x UNC 13" x 2 1/2" Can be used with Exp Applicator $0.58
B8-THREADED 7/16" x UNC 14" x 1 1/2" $0.20
B9-THREADED 1/2" x UNC 13" x 3" $0.58
B11-THREADED 1/2" x UNC 13" x 3" $0.20
B16-THREADED 5/8" x UNC 11" x 1/2" $1.96
B17-THREADED 3/4" x UNC 10" x 1 1/2" $1.96
B18-THREADED 3/4" x UNC 10" x 1" $1.96
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20 Series General Duty Casters Option Image

Option:Grip Ring Stem

Model No. Specification Price Ea. Qty
D1-GRIP-RING 7/16" x 1 1/2" $0.76
D2-GRIP-RING 27/32" x 2 1/2" $1.49
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20 Series General Duty Casters Option Image

Option:Round Stem

Model No. Specification Price Ea. Qty
E1-ROUND-STEM 7/8" x 2 3/32" with 5/16 Cross Drilled hole 1 1/8" from the top of the upper cup. $0.83
E2-ROUND-STEM 1" x 2 1/4" with 5/16" Cross Drilled hole 1 7/16" $1.78
E3-ROUND STEM 1" x 2 1/2" with 3/8" Cross Drilled Hole 1 7/64" from top of the upper raceway. $1.78
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20 Series General Duty Casters Option Image

Option:Octagon Stem

Model No. Specification Price Ea. Qty
F1-OCTAGON 27/32" x 2 7/16" with 1/4" Cross Drilled hole located at 1/2, 1 1/8", 1 3/4 from top of raceway. $1.40
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