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 )
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3"1 1/4"Gray Soft Rubber PS150K3ARF3x1.25-MLK3ARF3x1.25-SK3ARF3x1.25-R 4 1/8"
High Capacity Rubber B200K3ARH3x1.25-MLK3ARH3x1.25-SK3ARH3x1.25-R
Gray Polyurethane PS200K3AGP3x1.25-MLK3AGP3x1.25-SK3AGP3x1.25-R
Black/Gray Polyurethane PS200K3ABK3x1.25-MLK3ABK3x1.25-SK3ABK3x1.25-R
Red/Gray PolyurethanePS200K3ARG3x1.25-MLK3ARG3x1.25-SK3ARG3x1.25-R
Blue/Gray Polyurethane PS200K3ABP3x1.25-MLK3ABP3x1.25-SK3ABP3x1.25-R
Blue Polyurethane on AluminumB250K3APA3x1.25-MLK3APA3x1.25-SK3APA3x1.25-R
Polyolefin - BlackP250 K3APB3x1.25-MLK3APB3x1.25-SK3APB3x1.25-R
Polyolefin - Black DonutB250 K3APB3x1.25BML K3APB3x1.25B-SK3APB3x1.25B-R
Nylon ( White )B300K3ANY3x1.25BMLK3ANY3x1.25B-SK3ANY3x1.25B-R
4"1 3/8"Blue Soft Rubber RB350K3ARC4x1.375-MLK3ARC4x1.375-SK3ARC4x1.375-R5 1/8"
1 1/4"Gray Soft Rubber PS200K3ARF4x1.25-MLK3ARF4x1.25-SK3ARF4x1.25-R
High Capacity Rubber B250K3ARH4x1.25-MLK3ARH4x1.25-SK3ARH4x1.25-R
Gray Polyurethane PS250K3AGP4x1.25-MLK3AGP4x1.25-SK3AGP4x1.25-R
Black/Gray Polyurethane PS250K3ABK4x1.25-MLK3ABK4x1.25-SK3ABK4x1.25-R
Red/Gray PolyurethanePS250K3ARG4x1.25-MLK3ARG4x1.25-SK3ARG4x1.25-R
Blue/Gray Polyurethane PS250K3ABP4x1.25-MLK3ABP4x1.25-SK3ABP4x1.25-R
Blue Polyurethane on AluminumB300K3APA4x1.25-MLK3APA4x1.25-SK3APA4x1.25-R
Polyolefin - BlackP300 K3APB4x1.25-MLK3APB4x1.25-SK3APB4x1.25-R
Polyolefin - Black DonutB300 K3APB4x1.25BMLK3APB4x1.25B-SK3APB4x1.25B-R
Nylon ( White )B300K3ANY4x1.25BMLK3ANY4x1.25B-SK3ANY4x1.25B-R
5"1 1/4"Gray Soft Rubber PS250K3ARF5x1.25-MLK3ARF5x1.25-SK3ARF5x1.25-R6 1/4"
High Capacity Rubber B300K3ARH5x1.25-MLK3ARH5x1.25-SK3ARH5x1.25-R
Gray Polyurethane PS250K3AGP5x1.25-MLK3AGP5x1.25-SK3AGP5x1.25-R
Black/Gray Polyurethane PS250K3ABK5x1.25-MLK3ABK5x1.25-SK3ABK5x1.25-R
Red/Gray PolyurethanePS250K3ARG5x1.25-MLK3ARG5x1.25-SK3ARG5x1.25-R
Blue/Gray Polyurethane PS250K3ABP5x1.25-MLK3ABP5x1.25-SK3ABP5x1.25-R
Blue Polyurethane on AluminumB300K3APA5x1.25-MLK3APA5x1.25-SK3APA5x1.25-R
Polyolefin - BlackP300 K3APB5x1.25-MLK3APB5x1.25-SK3APB5x1.25-R
Polyolefin - Black DonutB300 K3APB5x1.25BMLK3APB5x1.25B-SK3APB5x1.25B-R
Nylon ( White )B300K3ANY5x1.25BMLK3ANY5x1.25B-SK3ANY5x1.25B-R
6"1 1/4"Gray Soft Rubber PS300K3ARFR6x1.25MLK3ARFR6x1.25-SK3ARFR6x1.25-R7 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.