20 Series General Duty Casters

Supplier: 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. FOB: West Coast Warehouse.

Model Info

80 models 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.
S20-30-S-A1-SR	Swivel	3" Diameter x 1-1/4" Wide	Soft Rubber	Nylon	3/8"	4-1/4"	3"	125 lbs.	$5.52
S20-30-S-A1-SBB	Swivel	3" Diameter x 1-1/4" Wide	Soft Rubber	Ball	3/8"	4-1/4"	3"	125 lbs.	$7.44
S20-30-S-A1-HR	Swivel	3" Diameter x 1-1/4" Wide	Hard Rubber	Lyon	3/8"	4-1/4"	3"	220 lbs.	$5.52
S20-30-S-A1-HBB	Swivel	3" Diameter x 1-1/4" Wide	Hard Rubber	Ball	3/8"	4-1/4"	3"	220 lbs.	$7.44
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.	$4.68
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.	$5.16
S20-30-S-A1-PU	Swivel	3" Diameter x 1-1/4" Wide	Polyurethane	Plain	3/8"	4-1/4"	3"	220 lbs.	$7.19
S20-30-S-A1-PB	Swivel	3" Diameter x 1-1/4" Wide	Polyurethane	Ball/Delrin	3/8"	4-1/4"	3"	240 lbs.	$9.12
S20-30-S-A1-INF	Swivel	3" Diameter x 1-1/4" Wide	Infiniti	Annular/Delrin	3/8"	4-1/4"	3"	220 lbs.	$8.41
S20-30-S-A1-PH	Swivel	3" Diameter x 1-1/4" Wide	Phenolic	Steel Bushing	3/8"	4-1/4"	3"	250 lbs.	$8.29
S20-30-S-A1-SS	Swivel	3" Diameter x 1-1/4" Wide	Steel	Plain	3/8"	4-1/4"	3"	250 lbs.	$7.08
S20-30-R-A1-SR	Rigid	3" Diameter x 1-1/4" Wide	Soft Rubber	Nylon	3/8"	4-1/4"	3"	125 lbs.	$3.96
S20-30-R-A1-SBB	Rigid	3" Diameter x 1-1/4" Wide	Soft Rubber	Bal	3/8"	4-1/4"	3"	125 lbs.	$5.89
S20-30-R-A1-HR	Rigid	3" Diameter x 1-1/4" Wide	Hard Rubber	Nylon	3/8"	4-1/4"	3"	220 lbs.	$3.96
S20-30-R-A1-HBB	Rigid	3" Diameter x 1-1/4" Wide	Hard Rubber	Ball	3/8"	4-1/4"	3"	220 lbs.	$5.89
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.	$3.12
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.	$3.61
S20-30-R-A1-PU	Rigid	3" Diameter x 1-1/4" Wide	Polyurethane	Plain	3/8"	4-1/4"	3"	220 lbs.	$5.64
S20-30-R-A1-PB	Rigid	3" Diameter x 1-1/4" Wide	Polyurethane	Ball/Delrin	3/8"	4-1/4"	3"	240 lbs.	$7.19
S20-30-R-A1-INF	Rigid	3" Diameter x 1-1/4" Wide	Infiniti	Annular/Delrin	3/8"	4-1/4"	3"	220 lbs.	$6.24
S20-30-R-A1-PH	Rigid	3" Diameter x 1-1/4" Wide	Phenolic	Steel Bushing	3/8"	4-1/4"	3"	250 lbs.	$6.72
S20-30-R-A1-SS	Rigid	3" Diameter x 1-1/4" Wide	Steel	Plain	3/8"	4-1/4"	3"	250 lbs.	$5.52
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.	$5.76
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.	$5.76
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.	$8.52
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.	$9.12
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.	$8.52
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.	$11.99
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.	$4.19
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.	$4.19
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.	$7.19
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.	$7.44
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.	$6.48
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.	$8.41
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.	$7.19
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.	$8.76
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.	$7.19
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.	$8.76
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.	$5.39
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.	$6.59
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.	$11.28
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.	$9.12
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.	$13.56
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.	$11.16
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.	$9.12
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.	$14.76
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.	$5.39
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.	$6.96
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.	$5.39
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.	$6.96
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.	$3.61
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.	$4.79
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.	$8.52
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.	$7.32
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.	$11.76
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.	$9.48
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.	$7.32
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.	$12.97
S20-50-S-A1-SR	Swivel	5" Diameter x 1-1/4" Wide	Soft Rubber	Nylon	3/8"	6- 5/32"	4"	175 lbs.	$8.64
S20-50-S-A1-SBB	Swivel	5" Diameter x 1-1/4" Wide	Soft Rubber	Ball	3/8"	6-5/32"	4"	175 lbs.	$9.99
S20-50-S-A1-HR	Swivel	5" Diameter x 1-1/4" Wide	Hard Rubber	Nylon	3/8"	6-5/32"	4"	300 lbs.	$8.64
S20-50-S-A1-HBB	Swivel	5" Diameter x 1-1/4" Wide	Hard Rubber	Ball	3/8"	6-5/32"	4"	300 lbs.	$9.99
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.	$6.24
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.	$7.08
S20-50-S-A1-PB	Swivel	5" Diameter x 1-1/4" Wide	Polyurethane	Ball/Delrin	3/8"	6-5/32"	4"	300 lbs.	$9.12
S20-50-S-A1-INF	Swivel	5" Diameter x 1-1/4" Wide	Infinitie	Annular/Delrin	3/8"	6-5/32"	4"	265 lbs.	$10.56
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.	$14.04
S20-50-S-A1-PH	Swivel	5" Diameter x 1-1/4" Wide	Phenolic	Steel Bushing	3/8"	6-5/32"	4"	320 lbs.	$11.04
S20-50-S-A1-HTP	Swivel	5" Diameter x 1-1/4" Wide	High Temperature	Plain	3/8"	6-5/32"	4"	300 lbs.	$26.39
S20-50-R-A1-SR	Rigid	5" Diameter x 1-1/4" Wide	Soft Rubber	Nylon	3/8"	6-5/32"	4"	175 lbs.	$6.72
S20-50-R-A1-SBB	Rigid	5" Diameter x 1-1/4" Wide	Soft Rubber	Ball	3/8"	6-5/32"	4"	175 lbs.	$8.16
S20-50-R-A1-HR	Rigid	5" Diameter x 1-1/4" Wide	Hard Rubber	Nylon	3/8"	6-5/32"	4"	300 lbs.	$6.72
S20-50-R-A1-LBB	Rigid	5" Diameter x 1-1/4" Wide	Hard Rubber	Ball	3/8"	6-5/32"	4"	300 lbs.	$8.16
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.	$4.32
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.	$5.16
S20-50-R-A1-PB	Rigid	5" Diameter x 1-1/4" Wide	Polyurethane	Ball/Delrin	3/8"	6-5/32"	4"	300 lbs.	$7.08
S20-50-R-A1-INF	Rigid	5" Diameter x 1-1/4" Wide	Infiniti	Annula/Delrin	3/8"	6-5/32"	4"	265 lbs.	$8.52
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.	$12.12
S20-50-R-A1-PH	Rigid	5" Diameter x 1-1/4" Wide	Phenolic	Steel Bushing	3/8"	6-5/32"	4"	320 lbs.	$9.12
S20-50-R-A1-HTP	Rigid	5" Diameter x 1-1/4" Wide	High Temperature	Plain	3/8"	6-5/32"	4"	300 lbs.	$24.24

Difference between Cart and Quote

5 Options Available for 20 Series General Duty Casters

S20 General Duty Caster Top Plates

Model No.	Overall Size	Bolt Hole Spacing	Ataching Bolt size	Price Ea.
A1	2 3/8" x 3 5/8"	1 3/4" x 2 11/16" to 2 1516"	5/16"	Call for Pricing
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

Threaded Stem

Model No.	Specification	Price Ea.
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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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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Round Stem

Model No.	Specification	Price Ea.
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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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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