Stromberg 28 Series Supreme Lock Caster with A1 mounting plate

28 Series Supreme Lock Casters

Supplier: Stromberg

Volume Discounts Apply

Total locking brake locks both the wheel and the swivel. Ideal for hospital instruments, laboratory equipment, communication equipment and more.

Optional dust cover – see Options tab.
Zinc or chrome plating.
Total locking brake (wheel and yoke).

A1 Top Plate:

Overall size: 2-3/8"x3-5/8".
Bolt hole spacing: 1-3/4"x2-11/16" to 2-15/16".
Attaching bolt size: 5/16".

Note: Priced casters shown are equipped with A1 style top plate. Other top plates, threaded stems, grip ring stems, round stems, and octagon stem are available in the Options tab. FOB: West Coast Warehouse.

Model Info

36 models for 28 Series Supreme Lock Casters

Prices subject to change without notice

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Model No.	Wheel Size	Type	Bearing	Axle Diameter	Overall Height	Swivel Radius	Load Capacity	Price Ea.
28-30-S-A1-SBB	3" Diameter x 1-1/4" Width	Soft Rubber	Ball	3/8"	4-1/4"	3-5/16"	125 lbs.	$12.48
28-30-S-A1-HR	3" Diameter x 1-1/4" Width	Hard Rubber	Nylon	3/8"	4-1/4"	3-5/16"	220 lbs.	$10.44
28-30-S-A1-HBB	3" Diameter x 1-1/4" Width	Hard Rubber	Ball	3/8"	4-1/4"	3-5/16"	220 lbs.	$12.48
28-30-S-A1-LP	3" Diameter x 1-1/4" Width	Light Duty Plastic	Plain	3/8"	4-1/4"	3-5/16"	220 lbs.	$9.72
28-30-S-A1-HP	3" Diameter x 1-1/4" Width	Heavy Duty Plastic	Plain	3/8"	4-1/4"	3-5/16"	300 lbs.	$10.32
28-30-S-A1-PB	3" Diameter x 1-1/4" Width	Polyurethane	Ball / Delrin	3/8"	4-1/4"	3-5/16"	220 lbs.	$13.79
28-30-S-A1-INF	3" Diameter x 1-1/4" Width	Infiniti	Annular / Delrin	3/8"	4-1/4"	3-5/16"	155 lbs.	$12.97
28-30-S-A1-SS	3" Diameter x 1-1/4" Width	Steel	Steel	3/8"	4-1/4"	3-5/16"	250 lbs.	$14.28
28-30-S-A1-PH	3" Diameter x 1-1/4" Width	Phenolic	Phenolic	3/8"	4-1/4"	3-5/16"	300 lbs.	$13.32
28-35-S-A1-SR	3 1/2" Diameter x 1-1/4" Wide	Soft Rubber	Nylon	3/8"	4-11/16"	3-11/32"	120 lbs.	$11.39
28-35-S-A1-HR	3 1/2" Diameter x 1-1/4" Wide	Hard Rubber	Nylon	3/8"	4-11/16"	3-11/32"	250 lbs.	$11.39
28-35-S-A1-HP	3 1/2" Diameter x 1-1/4" Wide	Heavy Duty Plastic	Plain	3/8"	4-11/16"	3-11/32"	250 lbs.	$13.79
28-35-S-A1-PB	3 1/2" Diameter x 1-1/4" Wide	Polyurethane	Ball / Delrin	3/8"	4-11/16"	3-11/32"	250 lbs.	$16.08
28-35-S-A1-INF	3 1/2" Diameter x 1-1/4" Wide	Infiniti	Annular / Delrin	3/8"	4-11/16"	3-11/32"	220 lbs.	$14.39
28-35-S-A1-RA	3 1/2" Diameter x 1-1/4" Wide	Grey Rubber or Aluminum	Annular	3/8"	4-11/16"	3-11/32"	220 lbs.	$15.61
28-40-S-A1-SR	4" Diameter x 1-1/4" Wide	Nylon	Nylon	3/8"	5-1/8"	4-5/8"	165 lbs.	$13.21
28-40-S-A1-SBB	4" Diameter x 1-1/4" Wide	Ball	Ball	3/8"	5-1/8"	4-5/8"	165 lbs.	$14.76
28-40-S-A1-HR	4" Diameter x 1-1/4" Wide	Nylon	Nylon	3/8"	5-1/8"	4-5/8"	265 lbs.	$13.21
28-40-S-A1-HBB	4" Diameter x 1-1/4" Wide	Ball	Ball	3/8"	5-1/8"	4-5/8"	265 lbs.	$14.76
28-40-S-A1-LP	4" Diameter x 1-1/4" Wide	Plain	Plain	3/8"	5-1/8"	4-5/8"	225 lbs.	$11.52
28-40-S-A1-HP	4" Diameter x 1-1/4" Wide	Plain	Plain	3/8"	5-1/8"	4-5/8"	265 lbs.	$12.59
28-40-S-A1-PB	4" Diameter x 1-1/4" Wide	Polyurethane	Ball / Delrin	3/8"	5-1/8"	4-5/8"	265 lbs.	$17.39
28-40-S-A1-RA	4" Diameter x 1-1/4" Wide	Grey Rubber on Aluminum	Annular	3/8"	5-1/8"	4-5/8"	265 lbs.	$17.39
28-40-S-A1-INF	4" Diameter x 1-1/4" Wide	Infiniti	Annular / Delrin	3/8"	5-1/8"	4-5/8"	250 lbs.	$15.24
28-40-S-A1-SS	4" Diameter x 1-1/4" Wide	Steel	Plain	3/8"	5-1/8"	4-5/8"	350 lbs.	$19.68
28-40-S-A1-PH	4" Diameter x 1-1/4" Wide	Phenolic	Steel Bushing	3/8"	5-1/8"	4-5/8"	300 lbs.	$15.11
28-50-S-A1-SR	5" Diameter x 1-1/4"	Soft Rubber	Nylon	3/8"	6-7/32"	4-5/8"	165 lbs.	$14.99
28-50-S-A1-SBB	5" Diameter x 1-1/4"	Soft Rubber	Ball	3/8"	6-7/32"	4-5/8"	165 lbs.	$16.31
28-50-S-A1-HR	5" Diameter x 1-1/4"	Hard Rubber	Nylon	3/8"	6-7/32"	4-5/8"	275 lbs.	$14.99
28-50-S-A1-HBB	5" Diameter x 1-1/4"	Hard Rubber	Ball	3/8"	6-7/32"	4-5/8"	275 lbs.	$16.31
28-50-S-A1-LP	5" Diameter x 1-1/4"	Light Duty Plastic	Plain	3/8"	6-7/32"	4-5/8"	220 lbs.	$12.71
28-50-S-A1-HP	5" Diameter x 1-1/4"	Heavy Duty Plastic	Plain	3/8"	6-7/32"	4-5/8"	300 lbs.	$13.56
28-50-S-A1-PB	5" Diameter x 1-1/4"	Polyurethane	Ball / Delrin	3/8"	6-7/32"	4-5/8"	265 lbs.	$15.24
28-50-S-A1-INF	5" Diameter x 1-1/4"	Infiniti	Annular / Delrin	3/8"	6-7/32"	4-5/8"	265 lbs.	$16.79
28-50-S-A1-RA	5" Diameter x 1-1/4"	Grey Rubber on Aluminum	Annular	3/8"	6-7/32"	4-5/8"	265 lbs.	$20.64
28-50-S-A1-PH	5" Diameter x 1-1/4"	Phenolic	Steel Bushing	3/8"	6-7/32"	4-5/8"	300 lbs.	$17.51

Difference between Cart and Quote

6 Options Available for 28 Series Supreme Lock Casters

28 Series Supreme Lock Casters Option Image

S28 Supreme Lock Top Plate Fasteners

Model No.	Overall Size	Bolt Hole Spacing	Attaching Bolt Size	Price Ea.	Qty
A2-S28	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-S28	3 15/16" x 4 1/2"	3 15/16" x 4 1/2"	3/8"	$0.90

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S28 Supreme Lock Threaded Stem Fasteners

Model No.	Specification	Price Ea.
B1-S28	1/2 x UNC13 x 1	$0.20
B2-S28	1/2 x UNC13 x 1 1/2	$0.20
B3-S28	5/8 x UNC11 x 1 1/4	$1.96
B4-S28	1/2 x UNC13 x 2	$0.29
B5-S28	1/2 x UNC20 x 3	$0.58
B6-S28	1/2" x UNC14 x 7/8"	$0.20
B7-S28	1/2" x UNC13 x 2 1/2 can be used with EXP applicator	$0.58
B8-S28	7/16" x UNC14 x 1 1/2 Specifiy 3/4. 7/8, 13/8, 11/2 ID Tube Size	$0.20
B9-S28	1/2" x UNC13 x 3"	$0.58
B11-S28	1/2" x UNC13 x 3/4"	$0.18
B17-S28	3/4" x UNC10 x 1 1/2 (5" only)	$1.96

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S28 Supreme Lock Grip Ring Stem Fasteners

Model No.	Specification	Price Ea.	Qty
D1-S28	7/16" x 1 1/2"	$0.76
D2-S28	27/32" x 2 1/2"	$1.04

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S28 Supreme Lock Octagon Stem Fasteners

Model No.	Specification	Price Ea.	Qty
F1-S28	27/32" x 7/16"	$1.42

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S28 Series Accessories and Options

Model No.	Description	Price Ea.
TG-S28	Thread Guard	$0.40
ZA-S28	Zerk Axle	$1.22
EP-S28	Expanded Applicator	Call for Pricing
CP-S28	Chrome Plating	Call for Pricing
BP-S28	Brass Plating	Call for Pricing
NI-S28	Nickel Plating	Call for Pricing
DC-S28	Dust Cap	Call for Pricing

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28 Series Round Stem Fasteners

Model No.	Description	Price Ea.
E1-S28	7/8 x 2-3/32" with 5/16" cross drilled hole 1-1/8" from top of the upper cup.	Call for Pricing
E2-S28	1 x 2-1/4" with 5/16" cross drilled hole 1-7/16" from top of upper raceway.	Call for Pricing
E3-S28	1 x 2-1/2" with cross drilled hole 1-7/64" from top of the upper raceway.	Call for Pricing

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