25 Series Light-Medium Duty Casters

Manufacturer: Stromberg

Volume Discounts Apply

Keeps dirt and grime out of the swivel bearings with standard swivel seals. Ideal for electronics, music equipment and showcases.

  • Double row ball bearing raceway construction.
  • Hardened raceways.
  • Standard zinc finish.


A1 Style Top Plate:

  • Overall size: 3-1/16x3-7/8".
  • Bolt hole spacing: 2-23/64x3-1/16 to 3-7/32".
  • Attaching bolt size: 3/8".


NOTE: Priced casters include A1 mounting plate. A2 style plate is available in the Options tab.

FOB: West Coast Warehouse.



11 Models Available for
25 Series Light-Medium 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
25-40-S-A1-SR Swivel 4" Diameter x 1-1/4" Wide Soft Rubber Nylon 3/8" 5-5/32" 3-11/32" 165 lbs. $5.80
25-40-S-A1-SBB Swivel 4" Diameter x 1-1/4" Wide Soft Rubber Ball 3/8" 5-5/32" 3-11/32" 165 lbs. $7.14
25-40-S-A1-HR Swivel 4" Diameter x 1-1/4" Wide Hard Rubber Nylon 3/8" 5-5/32" 3-11/32" 240 lbs. $5.80
25-40-S-A1-HBB Swivel 4" Diameter x 1-1/4" Wide Hard Rubber Ball 3/8" 5-5/32" 3-11/32" 240 lbs. $7.14
25-40-S-A1-LP Swivel 4" Diameter x 1-1/4" Wide Light Duty Plastic Plain 3/8" 5-5/32" 3-11/32" 225 lbs. $4.35
25-40-S-A1-HP Swivel 4" Diameter x 1-1/4" Wide Heavy Duty Plastic Plain 3/8" 5-5/32" 3-11/32" 240 lbs. $5.31
25-40-S-A1-PB Swivel 4" Diameter x 1-1/4" Wide Polyurethane Ball 3/8" 5-5/32" 3-11/32" 240 lbs. $8.25
25-40-S-A1-RA Swivel 4" Diameter x 1-1/4" Wide Grey Rubber on Aluminum Annular 3/8" 5-5/32" 3-11/32" 240 lbs. $9.85
25-40-S-A1-PR Swivel 4" Diameter x 1-1/4" Wide Plastic Rubber Tread Ball 3/8" 5-5/32" 3-11/32" 225 lbs. $7.83
25-40-S-A1-SS Swivel 4" Diameter x 1-1/4" Wide Steel Plain 3/8" 5-5/32" 3-11/32" 240 lbs. $11.18
25-40-S-A1-INF Swivel 4" Diameter x 1-1/4" Wide Infiniti Ball 3/8" 5-5/32" 3-11/32" 240 lbs. $7.48


1 Option Available for
25 Series Light-Medium Duty Casters

Option: Series 25 Accessories and Options

A2 Top Plate:

  • Overall Size: 3-1/8 x 4-3/32".
  • Bolt Hole Spacing: 1-9/64 x 2-15/16 to 2-3/8 x 3-3/8".
  • Attaching Bolt Size: 3/8".
Model No. Description Price Ea. Qty
TB-S25 Top Lock Brake $1.44
TG-S25 Thread Guard $0.40
CP-S25 Chrome Plating Call for Pricing
NI-S25 Nickel Plating Call for Pricing
BP-S25 Brass Plating Call for Pricing
A2-S25 A2 Style Top plate Call for Pricing