Total Locking Casters – StemCaster Model 3A

Total Locking Stem Caster Model 3A

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!

“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.”

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Total Locking Stem Caster Model 3A Features:

Typical Application Use for the Total Locking Stem Caster Model 3A Series:

Swivel Radius for Casters with the Total-Lock Brake – ALL SIZES – 4  3/8″

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.

Total Locking Brake:

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.

Total Lock Brake in the Un-Locked Position

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Total Lock Brake in the Locked Position

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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:

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T-Nuts for Threaded Stems:

T-Nuts can be used to secure our threaded stem casters to wooden items. Here we show the typical use of the T-Nut for both a Horizontal and a Vertical Application. 

In the Horizontal Application, you would drill a hole equal to the diameter of the barrel of the T-Nut and completely thru your wood. Hammer the T-Nut into the hole and thread your caster in from the bottom. This is the strongest mounting. 

The Vertical Application is for attaching casters to the bottom of legs and into the end grain of the wood. This is not an exceptionally strong way to mount! Drill your hole equal to the diameter of the barrel of the T-Nut and to the depth of the length of the stem of the caster plus about 1/4″. Apply 2 part epoxy to the T-Nut for additional strength. Hammer the T-Nut into the hole and thread your caster in from the bottom. You must use epoxy as we have had problems with some woods where the nuts ( and the casters ) fall off.

Hollow Kingpin:

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(HOLE for your BOLT) 1/2″ Hole to mount with YOUR Bolt. Option HK1/2 will show in Options Box

Grip Ring Stem:

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GR-91

7/16″ Diameter x 1 3/8″ Long

Available with 3″, 4″ & 5″ Wheels

Expanding Rubber Stem:

Fits Round & Square Tubing
Stem #ID of TubingRubber Range ( smallest size to largest size )
ER93/4″.720″ to .851″
ER277/8″.852″ to .927″ ( fits 1″ O.D. 16 or 18 Gauge )
ER281″.928″ to 1.029″
ER291  1/8″1.030″ to 1.140″
ER171  1/4″1.178″ to 1.303″
ER251  3/8″1.360″ to 1.425″
ER261  1/2″1.426″ to 1.589″ ( fits 1 5/8″ O.D. 16 or 18 Gauge )
ER211  13/16″1.790″ to 1.850″

Total Locking StemCaster Model 3A with Wheels

Caster Chart

We do NOT include mounting Hardware.

CASTER WHEEL DIAM.TREAD WIDTHWHEEL TREAD MATERIALSTD BRG TYPEMAX CAP. EACH CASTER LBS.Swivel Casters
with
Total-Lock Brake
Swivel Casters
Threaded Stem Only
( without Brake )
APPROX SWIVEL WEIGHT (LBS)OVERALL HEIGHT
3″1  1/4″Gray Soft RubberPS1503ARF3X-ML3ARF3X1  3/44  1/8″
High Capacity RubberB2003ARH3X-ML3ARH3X
Gray PolyurethaneB2003AGP3X-ML3AGP3X
Black/Gray PolyurethanePS2003ABK3X-ML3ABK3X
Blue/Gray PolyurethanePS2003ABP3X-ML3ABP3X
Red/Gray PolyurethanePS2003ARG3X-ML3ARG3X
Blue Polyurethane on AluminumB2503APA3X-ML3APA3X
4″1  3/8″Blue Soft RubberRB3503ARC4X-ML3ARC4X25  1/8″
1  1/4″Gray Soft RubberPS2003ARF4X-ML3ARF4X
High Capacity RubberB2503ARH4X-ML3ARH4X
Gray PolyurethanePS2503AGP4X-ML3AGP4X
Black/Gray PolyurethanePS2503ABK4X-ML3ABK4X
Blue/Gray PolyurethanePS2503ABP4X-ML3ABP4X
Red/Gray PolyurethanePS2503ARG4X-ML3ARG4X
Blue Polyurethane on AluminumB2503APA4X-ML3APA4X
5″1  1/4″Gray Soft RubberPS2503ARF5X-ML3ARF5X2  1/26  3/16″
High Capacity RubberB3003ARH5X-ML3ARH5X
Gray PolyurethanePS2503AGP5X-ML3AGP5X
Black/Gray PolyurethanePS2503ABK5X-ML3ABK5X
Blue/Gray PolyurethanePS2503ABP5X-ML3ABP5X
Red/Gray PolyurethanePS2503ARG5X-ML3ARG5X
Blue Polyurethane on AluminumB3003APA5X-ML3APA5X
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