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Bolt Hole Casters - Hollow Kingpin Casters - Stemless Casters - 57HK Series

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Put your mouse over the slide to hold it in place.

The Hollow Kingpin Caster( also called a "Bolt Hole Caster" or "Stemless Caster" ) is a very unique design for attaching a caster to an object. It allows you to customize your application by using a bolt or a lag bolt in the length or thread of your choice. Our Hollow Kingpin option has 2 sizes, 3/8" diameter and 1/2" diameter. When choosing your bolt, it should be as close to those dimensions as possible. Do not attach the caster with a 1/4" bolt just because it fits into the 3/8" hole. Hollow Kingpin casters give you great flexibility when attaching into end grain of wood because you can use a lag bolt. You can also use Metric Threads but we only recommend using a 12mm bolt in the 1/2" hollow kingpin hole. The length of the bolts that you use is up to you. Short or Long, makes no difference; whatever works for your application. To attach to your object using the Hollow Kingpin option, simply remove the wheel from your caster ( axle is a nut and bolt ). This gives you full access to the hole in the swivel bearing for you to attach the caster bracket. Once attached, just assemble the wheel and tighten the axle. Very simple. Any questions, call us.

The Total Locking Caster is ideal for applications that must be totally immobile when the caster brake is engaged. Its design ensures that the swivel of the caster and the wheel are locked at the same time. This is a very popular caster for both consumer and business applications. They are available with 3", 4" & 5" diameter wheels. We offer the Total locking caster along with matching non-locking swivel casters.

If you like the Hollow Kingpin but don't need the Total Locking Brake, choose the Top Lock Brake ( TLB ) option on the plain swivel caster. It will lock the wheel but not the swivel.
  • Built-in total-lock one-step brake system locks down both the swivel and the wheel simultaneously or Top Lock Brake to just lock the wheel. Your Choice!
  • Case hardened double ball raceways provide extra capacity & durability.
  • Thermal plastic rubber and polyurethane on polyolefin wheels do not mark floors. They come with a single precision ball bearing with integrated spanner bushing & thread guard or your choice of either ball bearings or the economical plain bore.
  • Both Polyurethane on Aluminum and Rubber on Aluminum wheels do not mark floors. They have Annular Ball bearings.
  • All of our ball bearing wheels roll exceptionally well.

We also offer this caster in a Plate Mount design or the standard attached Stem Mount design.

Hints
There is a lot of information on this page. Don't let it confuse you. Use this information to determine 3 things.
1. The type of wheel material that you need for your application. Put your mouse over the large wheel photo to see specifications.
2. The type of attachment that you require. Look for the photos of how to use this caster and what size bolts will work.
3. The size of the wheel and the style of the brake if you require a brake.

Used On:

Workbenches - Kitchen Islands - Shop Equipment - Movie & Soundstage Equipment - Hospital / Medical Equipment - Surface Planers -
Computer Equipment Stands - Mobile Workstations - Electronics & Diagnostic Equipment Carts - Welding Tables - Table Saws - Router Tables
Any item that must be held firmly in place while you are working on it.


The most important decision when selecting a general duty caster is the type of wheel material to use. The following are the factors to consider: Floor Material and Surface, Weight and use of object. Always choose more capacity in the casters than the maximum amount of weight that will be needed. For most objects, figure the weight of the object and divide by the number of casters that you will install. As a rule of thumb, add 20% to that amount for safety. For objects that will be sitting in one place for long periods of time, either a hard wheel should be used or a softer wheel with twice the capacity for the weight that it will hold. Softer wheel materials may be required to protect floors but those wheel materials have a tendency to develop flat spots from sitting in one place for long periods of time. By only using half of their capacity, the wheels should not develop flat spots.

To learn more about wheel materials and hardness, click here.

Sample Photos
Total Locking Swivel Caster Swivel Caster Side Lock Brake
Total Lock Brake
Polyurethane on Aluminum Wheel
Hollow Kingpin / Bolt Hole
No Brake
Polyurethane on Aluminum Wheel
Hollow Kingpin / Bolt Hole
Top Lock Brake - Option TLB
Polyurethane on Aluminum Wheel
Locks only the Wheel - Hollow Kingpin


Wheel
Material

Thermoplastic
Rubber
3/8" & 1/2" Hollow Kingpin Wheel
Only
Wheel
Diameter
Tread Width /
Hub Length
Axle
Size
Bearing
Type
Capacity
Each
Overall
Height
Swivel
Radius
Total
Lock
Brake
Swivel
Total
Locking
Brake
Swivel Only
TLB
Brake
Optional
Total Locking Hollow Kingpin Caster Bolt Hole Swivel Caster Wheel Wheel Diameter
Wheel Width Wheel Hub Length
Axle Size Bearing Type Capacity Caster Height Swivel Radius with Brake
Rubber on Polyolefin Wheel
Mouse-Over for Info
57HKTRP3X-TL
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57HKTRP3X
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TRP3x1-1/4
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3" 1 1/4" / 1 1/2" 3/8" Precision
Ball
200 4 1/8" 4 5/16"
57HKTRP4X-TL
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57HKTRP4X
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TRP4x1-1/4
Price Icon
4" 1 1/4" / 1 1/2" 3/8" Precision
Ball
250 5 1/8" 4 5/16"
57HKTRP5X-TL
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57HKTRP5X
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TRP5x1-1/4
Price Icon
5" 1 1/4" / 1 1/2" 3/8" Precision
Ball
250 6 1/8" 4 5/16"
Wheel
Material

Thermoplastic
Rubber
3/8" & 1/2" Hollow Kingpin Wheel
Only
Wheel
Diameter
Tread Width /
Hub Length
Axle
Size
Bearing
Type
Capacity
Each
Overall
Height
Swivel
Radius
Total
Lock
Brake
Swivel
Total
Locking
Brake
Swivel Only
TLB
Brake
Optional
Total Locking Caster Swivel Caster Wheel Wheel Diameter
Wheel Width Wheel Hub Length
Axle Size Bearing Type Capacity Caster Height Swivel Radius with Brake
Rubber on Polyolefin Wheel
Mouse-Over for Info
57HKTR3X-TL
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57HKTR3X
Price Icon
TR3x1-1/4
Price Icon
3" 1 1/4" / 1 1/2" 3/8" Ball 200 4 1/8" 4 5/16"
57HKTR4X-TL
Price Icon
57HKTR4X
Price Icon
TR4x1-1/4
Price Icon
4" 1 1/4" / 1 1/2" 3/8" Ball 250 5 1/8" 4 5/16"
57HKTR5X-TL
Price Icon
57HKTR5X
Price Icon
TR5x1-1/4
Price Icon
5" 1 1/4" / 1 1/2" 3/8" Ball 250 6 1/8" 4 5/16"
Wheel
Material

Polyurethane
on Polyolefin
3/8" & 1/2" Hollow Kingpin Wheel
Only
Wheel
Diameter
Tread Width /
Hub Length
Axle
Size
Bearing
Type
Capacity
Each
Overall
Height
Swivel
Radius
Total
Lock
Brake
Swivel
Total
Locking
Brake
Swivel Only
TLB
Brake
Optional
Total Locking Caster Swivel Caster Wheel Wheel Diameter
Wheel Width Wheel Hub Length
Axle Size Bearing Type Capacity Caster Height Swivel Radius with Brake
Polyurethane on Polyolefin Wheel
Mouse-Over for Info
57HKGPP3X-TL
Price Icon
57HKGPP3X
Price Icon
GPP3x1-1/4
Price Icon
3" 1 1/4" / 1 1/2" 3/8" Precision
Ball
250 4 1/8" 4 5/16"
57HKGPP4X-TL
Price Icon
57HKGPP4X
Price Icon
GPP4x1-1/4
Price Icon
4" 1 1/4" / 1 1/2" 3/8" Precision
Ball
275 5 1/8" 4 5/16"
57HKGPP5X-TL
Price Icon
57HKGPP5X
Price Icon
GPP5x1-1/4
Price Icon
5" 1 1/4" / 1 1/2" 3/8" Precision
Ball
300 6 1/8" 4 5/16"
Wheel
Material

Polyurethane
on Polyolefin
3/8" & 1/2" Hollow Kingpin Wheel
Only
Wheel
Diameter
Tread Width /
Hub Length
Axle
Size
Bearing
Type
Capacity
Each
Overall
Height
Swivel
Radius
Total
Lock
Brake
Swivel
Total
Locking
Brake
Swivel Only
TLB
Brake
Optional
Total Locking Caster Swivel Caster Wheel Wheel Diameter
Wheel Width Wheel Hub Length
Axle Size Bearing Type Capacity Caster Height Swivel Radius with Brake
Polyurethane on Polyolefin Wheels
Mouse-Over for Info
57HKXP3X-TL
Price Icon
57HKXP3X
Price Icon
XP3x1-1/4
Price Icon
3" 1 1/4" / 1 1/2" 3/8" Ball 250 4 1/8" 4 5/16"
57HKXP4X-TL
Price Icon
57HKXP4X
Price Icon
XP4x1-1/4
Price Icon
4" 1 1/4" / 1 1/2" 3/8" Ball 275 5 1/8" 4 5/16"
57HKXP5X-TL
Price Icon
57HKXP5X
Price Icon
XP5x1-1/4
Price Icon
5" 1 1/4" / 1 1/2" 3/8" Ball 300 6 1/8" 4 5/16"
Wheel
Material

Polyurethane
on Aluminum
3/8" & 1/2" Hollow Kingpin Wheel
Only
Wheel
Diameter
Tread Width /
Hub Length
Axle
Size
Bearing
Type
Capacity
Each
Overall
Height
Swivel
Radius
Total
Lock
Brake
Swivel
Total
Locking
Brake
Swivel Only
TLB
Brake
Optional
Total Locking Caster Swivel Caster Wheel Wheel Diameter
Wheel Width Wheel Hub Length
Axle Size Bearing Type Capacity Caster Height Swivel Radius with Brake
Polyurethane on Aluminum Wheel
Mouse-Over for Info
57HKPA3X-TL
Price Icon
57HKPA3X
Price Icon
PA3x1-1/4
Price Icon
3" 1 1/4" / 1 1/2" 3/8" Annular
Ball
250 4 1/8" 4 5/16"
57HKPA4X-TL
Price Icon
57HKPA4X
Price Icon
PA4x1-1/4
Price Icon
4" 1 1/4" / 1 1/2" 3/8" Annular
Ball
275 5 1/8" 4 5/16"
57HKPA5X-TL
Price Icon
57HKPA5X
Price Icon
PA5x1-1/4
Price Icon
5" 1 1/4" / 1 1/2" 3/8" Annular
Ball
300 6 1/8"" 4 5/16"
Wheel
Material

Rubber
on Aluminum
3/8" & 1/2" Hollow Kingpin Wheel
Only
Wheel
Diameter
Tread Width /
Hub Length
Axle
Size
Bearing
Type
Capacity
Each
Overall
Height
Swivel
Radius
Total
Lock
Brake
Swivel
Total
Locking
Brake
Swivel Only
TLB
Brake
Optional
Total Locking Caster Swivel Caster Wheel Wheel Diameter
Wheel Width Wheel Hub Length
Axle Size Bearing Type Capacity Caster Height Swivel Radius with Brake
Rubber on Aluminum Wheel
Mouse-Over for Info
57HKRA3X-TL
Price Icon
57HKRA3X
Price Icon
RA3x1-1/4
Price Icon
3" 1 1/4" / 1 1/2" 3/8" Annular
Ball
250 4 1/8" 4 5/16"
57HKRA4X-TL
Price Icon
57HKRA4X
Price Icon
RA4x1-1/4
Price Icon
4" 1 1/4" / 1 1/2" 3/8" Annular
Ball
300 5 1/8" 4 5/16"
57HKRA5X-TL
Price Icon
57HKRA5X
Price Icon
RA5x1-1/4
Price Icon
5" 1 1/4" / 1 1/2" 3/8" Annular
Ball
300 6 1/8" 4 5/16"


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