Total Locking Casters – Caster Model K3A – Plate Mount
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 K3A 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 K3A are non-marking, and all except Polyolefin can be used on hardwood floors. Polyolefin wheels are best at reducing the risk of a flat spot occuring when loads are left standing for prolong periods. 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!
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


Typical Applications:
Workbenches - Shop Equipment - Kitchen Islands - Movie & Soundstage Equipment - Hospital / Medical Equipment
Computer Equipment Stands and Mobile Workstations - Electronics & Diagnostic Equipment and Carts
Any Application requiring the item to be held firmly in place.
Features:
 
  • 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. Polyolefin wheels have a plain bore ( no bearing ) ( P ).
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 activating pedal instantly locks the entire caster holding the equipment firmly in place. One step on the release pedal frees the swivel and wheel.
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
Red/Gray Polyurethane
Caster shown
in Un-Locked Position
Blue/Gray Polyurethane
Caster shown
in Un-Locked Position


High Capacity Rubber
Caster shown
in Un-Locked Position

Blue Soft Rubber
Caster shown
in Un-Locked Position

6" Gray Rubber
Caster shown
in Un-Locked Position
Blue Polyurethane
on Aluminum
Caster shown
in Un-Locked Position

White Nylon
Caster shown
in Un-Locked Position

Black Polyolefin
( Industrial Plastic )
Plain Bore
Caster shown
in Un-Locked Position
Polyolefin - Donut
( Industrial Plastic )
Ball Bearing
Caster shown
in Un-Locked Position


Blue Polyurethane
on Aluminum
Swivel Caster



6" Gray Rubber
Swivel Caster



6" Gray Rubber
Rigid Caster
We do NOT include mounting Hardware.
Click on the Part Numbers for Pricing, Options and to ORDER.
Caster
Wheel
Diam. 		Tread
Width		 Click here
to compare
wheel materials.		 Std
Brg
Type
Max
Cap.
Each
Caster
lbs.
Click Part Numbers Below
For Price and to Order
Overall
Height
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 K3ARF3x1.25-ML K3ARF3x1.25-S K3ARF3x1.25-R 4 1/8"
Super Soft Gray Rubber B 105 K3ARS3x1.25-ML K3ARS3x1.25-S K3ARS3x1.25-R
High Capacity Rubber B 200 K3ARH3x1.25-ML K3ARH3x1.25-S K3ARH3x1.25-R
Gray Polyurethane PS 200 K3AGP3x1.25-ML K3AGP3x1.25-S K3AGP3x1.25-R
Black/Gray Polyurethane PS 200 K3ABK3x1.25-ML K3ABK3x1.25-S K3ABK3x1.25-R
Red/Gray Polyurethane PS 200 K3ARG3x1.25-ML K3ARG3x1.25-S K3ARG3x1.25-R
Blue/Gray Polyurethane PS 200 K3ABP3x1.25-ML K3ABP3x1.25-S K3ABP3x1.25-R
Blue Polyurethane on Aluminum B 250 K3APA3x1.25-ML K3APA3x1.25-S K3APA3x1.25-R
Polyolefin - Black P 250 K3APB3x1.25-ML K3APB3x1.25-S K3APB3x1.25-R
Polyolefin - Black Donut B 250 K3APB3x1.25BML K3APB3x1.25B-S K3APB3x1.25B-R
Nylon ( White ) B 300 K3ANY3x1.25BML K3ANY3x1.25B-S K3ANY3x1.25B-R
4" 1 3/8" Blue Soft Rubber RB 350 K3ARC4x1.375-ML K3ARC4x1.375-S K3ARC4x1.375-R 5 1/8"
1 1/4" Gray Soft Rubber PS 200 K3ARF4x1.25-ML K3ARF4x1.25-S K3ARF4x1.25-R
Super Soft Gray Rubber B 120 K3ARS4x1.25-ML K3ARS4x1.25-S K3ARS4x1.25-R
High Capacity Rubber B 250 K3ARH4x1.25-ML K3ARH4x1.25-S K3ARH4x1.25-R
Gray Polyurethane PS 250 K3AGP4x1.25-ML K3AGP4x1.25-S K3AGP4x1.25-R
Black/Gray Polyurethane PS 250 K3ABK4x1.25-ML K3ABK4x1.25-S K3ABK4x1.25-R
Red/Gray Polyurethane PS 250 K3ARG4x1.25-ML K3ARG4x1.25-S K3ARG4x1.25-R
Blue/Gray Polyurethane PS 250 K3ABP4x1.25-ML K3ABP4x1.25-S K3ABP4x1.25-R
Blue Polyurethane on Aluminum B 300 K3APA4x1.25-ML K3APA4x1.25-S K3APA4x1.25-R
Polyolefin - Black P 300 K3APB4x1.25-ML K3APB4x1.25-S K3APB4x1.25-R
Polyolefin - Black Donut B 300 K3APB4x1.25BML K3APB4x1.25B-S K3APB4x1.25B-R
Nylon ( White ) B 300 K3ANY4x1.25BML K3ANY4x1.25B-S K3ANY4x1.25B-R
5" 1 1/4" Gray Soft Rubber PS 250 K3ARF5x1.25-ML K3ARF5x1.25-S K3ARF5x1.25-R 6 1/4"
Super Soft Gray Rubber B 125 K3ARS5x1.25-ML K3ARS5x1.25-S K3ARS5x1.25-R
High Capacity Rubber B 300 K3ARH5x1.25-ML K3ARH5x1.25-S K3ARH5x1.25-R
Gray Polyurethane PS 250 K3AGP5x1.25-ML K3AGP5x1.25-S K3AGP5x1.25-R
Black/Gray Polyurethane PS 250 K3ABK5x1.25-ML K3ABK5x1.25-S K3ABK5x1.25-R
Red/Gray Polyurethane PS 250 K3ARG5x1.25-ML K3ARG5x1.25-S K3ARG5x1.25-R
Blue/Gray Polyurethane PS 250 K3ABP5x1.25-ML K3ABP5x1.25-S K3ABP5x1.25-R
Blue Polyurethane on Aluminum B 300 K3APA5x1.25-ML K3APA5x1.25-S K3APA5x1.25-R
Polyolefin - Black P 300 K3APB5x1.25-ML K3APB5x1.25-S K3APB5x1.25-R
Polyolefin - Black Donut B 300 K3APB5x1.25BML K3APB5x1.25B-S K3APB5x1.25B-R
Nylon ( White ) B 300 K3ANY5x1.25BML K3ANY5x1.25B-S K3ANY5x1.25B-R
6" 1 1/4" Gray Soft Rubber PS 300 K3ARFR6x1.25ML K3ARFR6x1.25-S K3ARFR6x1.25-R 7 1/8"

- Swivel Radius for Casters with the Total-Lock Brake - ALL SIZES - 5"
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 if the castered equipment is left parked for a prolong period.
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.