Total Locking Casters – Caster Model K3A – StemCaster

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!

If you are unsure of your selection please contact us for assistance.
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.
These mounting stems are available in all wheels below.
Choose the mounting stem in the Shopping Cart.

We do not provide the nuts to attach threaded stem casters.
Threaded Stem Casters should NOT be used as a "Leveling Device"!
The weight should be supported by the top of the swivel bearing of the caster, not somewhere above it on the threaded stem.
Threaded Stems
  • TS62 for 3/8" - 16 x 1 1/2"
  • TS21 for 1/2" - 13 x 1"
  • TS22 for 1/2" - 13 x 1 1/2"
  • TS5/8 for 5/8" - 11 x 1 3/4"
  • TS3/4 for 3/4" - 10 x 1 3/4"
  • TSC1 for 1/2" - 13 x 4"
  • TSC2 for 5/8" - 11 x 4"
  • TSC3 for 3/4" - 10 x 6"
T-Nuts for
Threaded Stems
Click Here


Partially Threaded Stem
TS26N for 1/2" - 13 x 2 3/4"
How to use the Hollow Kingpin
( HK1/2 ) Stem Option.
 Hollow Kingpin
( HOLE for your BOLT )

1/2" Hole to mount with YOUR Bolt.
Option HK1/2 will show in Options Box
Grip Ring Stem


GR-91
7/16" Diameter x 1 3/8" Long

Available with 3", 4" & 5" Wheels
Expanding Rubber Stem
fits Round & Square Tubing
For Detailed Dimmensions Click Here
Installation Instructions
  • ER9 for 3/4" ID
  • ER27 for 7/8" ID
  • ER28 for 1" ID
  • ER29 for 1 1/8" ID
  • ER17 for 1 1/4" ID
  • ER25 for 1 3/8" ID
  • ER26 for 1 1/2" ID
  • ER21 for 1 13/16" ID

The mounting stems below are only available in 4" and 5" casters.
Choose the mounting stem in the Shopping Cart.


Mounting Stem
GR95 - Formally GR2
Mounting Stem - SQ7/8-GRMounting Stem - SQ3/4Mounting Stem - SQ7/8-CH3
Caster Photos are with 5" Wheels - 3", 4" and 5" are available.

Gray Soft Rubber
TS22 Stem
Caster shown
in Un-Locked Position

Gray Polyurethane
ER Stem
Caster shown
in Un-Locked Position

Black/Gray Polyurethane
TS22 Stem
Caster shown
in Un-Locked Position

Red/Gray Polyurethane
TS22 Stem
Caster shown
in Un-Locked Position

Blue/Gray Polyurethane
ER Stem
Caster shown
in Un-Locked Position



High Capacity Rubber
TS22 Stem
Caster shown
in Un-Locked Position



Blue Soft Rubber
TS22 Stem
Caster shown
in Un-Locked Position


Blue Polyurethane
on Aluminum
TS26N Stem
Caster shown
in Un-Locked Position

Black Polyolefin
( Industrial Plastic )
Plain Bore
ER Stem
Caster shown
in Un-Locked Position

Polyolefin - Donut
( Industrial Plastic )
Ball Bearing
ER Stem
Caster shown
in Un-Locked Positi

White Nylon
Ball Bearing
TS26N Stem
Caster shown
in Un-Locked Position


6" Gray Soft Rubber
Hollow Kingpin
Caster shown
in Un-Locked Position


Blue/Gray Polyurethane
Hollow Kingpin
Caster shown
in Un-Locked Position

Blue Polyurethane
on Aluminum
TS22 Stem
Swivel Caster
No Brake


Gray Soft Rubber
ER Stem
Swivel Caster
No Brake
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
Approx
Swivel
Weight
lbs.
Overall
Height

Wheel Tread Material
Click to see Wheel
Swivel Casters
with
Total-Lock Brake
Swivel Casters
Threaded Stem Only
( without Brake )
Buy it NowBuy it Now
3"1 1/4"Gray Soft Rubber PS150K3ARF3X-MLK3ARF3X1 3/4 4"
High Capacity Rubber B200K3ARH3X-MLK3ARH3X
Gray Polyurethane PS200K3AGP3X-MLK3AGP3X
Black/Gray Polyurethane PS200K3ABK3X-MLK3ABK3X
Blue/Gray Polyurethane PS200K3ABP3X-MLK3ABP3X
Red/Gray PolyurethanePS200K3ARG3X-MLK3ARG3X
Blue Polyurethane on AluminumB250K3APA3X-MLK3APA3X
Polyolefin - BlackP250 K3APB3X-MLK3APB3X
Polyolefin - Black DonutB250 K3APB3BX-MLK3APB3BX
Nylon ( White )B300K3ANY3BX-MLK3ANY3BX

4"
1 3/8"Blue Soft Rubber RB350K3ARC4X-MLK3ARC4X25"
1 1/4"Gray Soft Rubber PS200K3ARF4X-MLK3ARF4X
High Capacity Rubber B250K3ARH4X-MLK3ARH4X
Gray Polyurethane PS250K3AGP4X-MLK3AGP4X
Black/Gray Polyurethane PS250K3ABK4X-MLK3ABK4X
Blue/Gray Polyurethane PS250K3ABP4X-MLK3ABP4X
Red/Gray PolyurethanePS250K3ARG4X-MLK3ARG4X
Blue Polyurethane on AluminumB300K3APA4X-MLK3APA4X
Polyolefin - BlackP300 K3APB4X-MLK3APB4X
Polyolefin - Black DonutB300 K3APB4BX-MLK3APB4BX
Nylon ( White )B300K3ANY4BX-MLK3ANY4BX
5"1 1/4"Gray Soft Rubber PS250K3ARF5X-MLK3ARF5X2 1/26 1/8"
High Capacity Rubber B300K3ARH5X-MLK3ARH5X
Gray Polyurethane PS250K3AGP5X-MLK3AGP5X
Black/Gray Polyurethane PS250K3ABK5X-MLK3ABK5X
Blue/Gray Polyurethane PS250K3ABP5X-MLK3ABP5X
Red/Gray PolyurethanePS250K3ARG5X-MLK3ARG5X
Blue Polyurethane on AluminumB300K3APA5X-MLK3APA5X
Polyolefin - BlackP300 K3APB5X-MLK3APB5X
Polyolefin - Black DonutB300 K3APB5BX-MLK3APB5BX
Nylon ( White )B300K3ANY5BX-MLK3ANY5BX
6"1 1/4"Gray Soft Rubber PS300K3ARFR6X-MLK3ARFR6X37"


- Swivel Radius for Casters with the Total-Lock Brake - ALL SIZES - 5"

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.

Threaded Stem Casters should NOT be used as a "Leveling Device"! Capacity ratings are based on the weight being directly on the top of the swivel bearing, not somewhere above it on the threaded stem.

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.