Total Locking Casters – Caster Model 3A – PlateMount

Capacity up to 300 pounds per caster.
These institutional casters are ideal for any light duty application where the caster must be totally immobile when the caster brake is applied. Caster Model 3A has a unique brake which locks both the wheel and the swivel bearing at the same time. This “Total-Lock” brake insures that the swivel caster will not turn when the wheel is locked. This combination wheel brake and swivel lock is essential for safety in some applications – such as on worktables, tablesaws, and medical equipment. The Total-Lock brake is desireable whenever a brake is needed because it makes a swivel caster totally immobile. The wheels featured with Caster Model 3A are non-marking. Gray Soft Rubber and Polyurethane wheels have a sealed precision ball bearing. They provide floor and cargo protection, quiet operation, and are very easy rolling. Try a set of 4 casters. You will be amazed at their performance!Click here for a Stem Mount VersionClick here for this caster in Stainless Steel.
Mounting Plate – 2 3/8″ x 3 5/8″
This image is for Plate Size and Hole Placement ONLY. IT DOES NOT DEPICT THE ACTUAL PLATE.
We suggest that you do NOT drill the mounting holes to attach the casters until you receive them.
We do NOT include mounting Hardware.
You should never select on the basis of load capacity alone. There is no industry standard for load capacity ratings and they may not include a factor for abuse. Our capacity ratings are below what the casters are capable of carrying because most applications have less than perfect conditions. Please refer to the information shown at the bottom of this page. If you have any doubt as to which wheel or caster is the BEST choice for your application contact us for a recommendation.

CALL US AT 800-501-3808

  • Swivel Construction - Stamped steel. Swivel has double ball bearing.
  • Gray Non-marking Soft Rubber, Gray Polyurethane, Black/Gray , Blue/Gray and Red/Gray Polyurethane all have a precision sealed ball bearing ( PS ) shielded by full thread guards. Polyurethane on Aluminum Wheels have Ball Bearings ( B ) without thread guards and the Soft Blue Rubber Wheels have Roller Bearings with a lube axle.
Total-Lock Brake:  
Total Lock Brake in the
Un-Locked Position
Total Lock Brake in the Locked Position
  • Combination Wheel Brake and Swivel Lock - This brake simultaneously locks the wheel and the swivel. One step on the metal activating pedal instantly locks the entire caster holding the equipment firmly in place. One step on the metal release pedal frees the swivel and wheel.
We offer a Black Nylon Pedal for those that need an easier to activate and release Total Lock Brake. Click Here.

3" Gray Polyurethane on a workbench.

3" Gray Polyurethane on a rolling cabinet.
Typical Applications:

Workbenches - Shop Equipment
Kitchen Islands - Movie & Soundstage Equipment
Hospital / Medical Equipment
Computer Equipment Stands
Mobile Workstations
Electronics & Diagnostic Equipment and Carts
Any Application requiring the item
to be held firmly in place.

5" Red Polyurethane on Ollie's Workbench.

This mounting plate fits nicely on 4" x 4".
To see MORE photos and instructions on
how to build this Workbench,
Click Here.
Caster Photos are with 5" Wheels - 3", 4" and 5" are available.

Gray Rubber
Caster shown
in Un-Locked Position

Gray Polyurethane
Caster shown
in Un-Locked Position

Black/Gray Polyurethane
Caster shown
in Un-Locked Position

Caster shown
in Un-Locked Position

Caster shown
in Un-Locked Position

High Capacity Rubber
Caster shown
in Un-Locked Position

Blue Soft Rubber
Caster shown
in Un-Locked Position

Blue Polyurethane
on Aluminum
Caster shown
in Un-Locked Position

Blue Polyurethane
on Aluminum
Swivel Caster
No Brake

Gray Polyolefin
Rigid Caster
We do NOT include mounting Hardware.
Click on the Part Numbers for Pricing, Options and to ORDER.
Click here
to compare
wheel materials.

Click Part Numbers Below
For Price and to Order

Wheel Tread Material
Click to see Wheel
Swivel Caster w/
Total-Lock Brake
Swivel Caster
( No Brake )
Rigid Caster
( No Brake )
Buy it Now Buy it Now Buy it Now
3" 1 1/4" Gray Soft Rubber PS 150 3ARF3x1.25-SML 3ARF3x1.25-S 3ARF3x1.25-R 4 1/4"
High Capacity Rubber B 200 3ARH3x1.25-SML 3ARH3x1.25-S 3ARH3x1.25-R
Gray Polyurethane PS 200 3AGP3x1.25-SML 3AGP3x1.25-S 3AGP3x1.25-R
Black/Gray Polyurethane PS 200 3ABK3x1.25-SML 3ABK3x1.25-S 3ABK3x1.25-R
Red/Gray Polyurethane PS 200 3ARG3x1.25-SML 3ARG3x1.25-S 3ARG3x1.25-R
Blue/Gray Polyurethane PS 200 3ABP3x1.25-SML 3ABP3x1.25-S 3ABP3x1.25-R
Blue Polyurethane on Aluminum B 250 3APA3x1.25-SML 3APA3x1.25-S 3APA3x1.25-R
4" 1 3/8" Blue Soft Rubber RB 350 3ARC4x1.375-SML 3ARC4x1.375-S 3ARC4x1.375-R 5 1/4"
1 1/4" Gray Soft Rubber PS 200 3ARF4x1.25-SML 3ARF4x1.25-S 3ARF4x1.25-R
High Capacity Rubber B 250 3ARH4x1.25-SML 3ARH4x1.25-S 3ARH4x1.25-R
Gray Polyurethane PS 250 3AGP4x1.25-SML 3AGP4x1.25-S 3AGP4x1.25-R
Black/Gray Polyurethane PS 250 3ABK4x1.25-SML 3ABK4x1.25-S 3ABK4x1.25-R
Red/Gray Polyurethane PS 250 3ARG4x1.25-SML 3ARG4x1.25-S 3ARG4x1.25-R
Blue/Gray Polyurethane PS 250 3ABP4x1.25-SML 3ABP4x1.25-S 3ABP4x1.25-R
Blue Polyurethane on Aluminum B 300 3APA4x1.25-SML 3APA4x1.25-S 3APA4x1.25-R
5" 1 1/4" Gray Soft Rubber PS 250 3ARF5x1.25-SML 3ARF5x1.25-S 3ARF5x1.25-R 6 3/16"
High Capacity Rubber B 300 3ARH5x1.25-SML 3ARH5x1.25-S 3ARH5x1.25-R
Gray Polyurethane PS 250 3AGP5x1.25-SML 3AGP5x1.25-S 3AGP5x1.25-R
Black/Gray Polyurethane PS 250 3ABK5x1.25-SML 3ABK5x1.25-S 3ABK5x1.25-R
Red/Gray Polyurethane PS 250 3ARG5x1.25-SML 3ARG5x1.25-S 3ARG5x1.25-R
Blue/Gray Polyurethane PS 250 3ABP5x1.25-SML 3ABP5x1.25-S 3ABP5x1.25-R
Blue Polyurethane on Aluminum B 300 3APA5x1.25-SML 3APA5x1.25-S 3APA5x1.25-R

- Swivel Radius for Casters with the Total-Lock Brake - ALL SIZES - 4 1/2"
Approximate Weights - Swivel Caster with ML Brake - 3" wheel = 1 3/4 lbs. - 4" wheel = 2 lbs. - 5" wheel = 2 1/2 lbs.

Use the Polyolefin ( Industrial Plastic ) wheel for "Standing Loads". Polyolefin wheels eliminate the possiblilty of a flat spot developing on the surfiace of polyurethane and rubber tires when the weight exceeds 2/3 of the rated capacity when the object is left parked most of the time .

You should never select on the basis of load capacity alone. Capacity ratings do not take into account the effort required to manually move a load. Capacity ratings are based on manual operation under ideal conditions. If these casters are going to be moved by mechanically powered equipment, consult us for a reduced capacity rating based on your application.