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All measurements indicate the wheel diameter by the tread width.

The below capacity ranges indicate the working (dynamic) load that each caster will support. A safety factor should be included in your formula to determine your required load rating per caster.

W/(C-1)=R W is total weight needed to move. C is total number of casters required. R is ideal load rating, with safety factor built in. Divide the total load weight by one less caster than you will use to safely determine load rating.

Plate dimensions shown are overall mounting plate size.
When replacing existing casters, select the closest plate size and verify bolt-hole compatibility.
BHP = Bolt Hole Pattern, shown under each plate.

BHP: 1-3/4″ × 2-7/8″, slotted to 3″
BHP: 1-3/4″ × 2-7/8″, slotted to 3″
BHP: 1-3/4″ × 2-15/16″ slotted to 2-3/8″ × 3-3/8″
BHP: 1-3/4″ × 2-15/16″ slotted to 2-3/8″ × 3-3/8″
BHP: 2-5/8” X 3-5/8” (Slotted to 3” x 3”)
BHP: 2-5/8” X 3-5/8” (Slotted to 3” x 3”)
BHP: 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"
BHP: 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"
(3″ Wide Casters), Industry-Standard
(3″ Wide Casters), Industry-Standard
BHP: 3-3/8" x 5-1/4" slotted to 4-1/8" x 6-1/8"
BHP: 3-3/8" x 5-1/4" slotted to 4-1/8" x 6-1/8"
BHP: 4-1/8" x 6" slotted to 4-1/2" x 6-1/8"
BHP: 4-1/8" x 6" slotted to 4-1/2" x 6-1/8"
View All • 21 Plate Sizes
View All • 21 Plate Sizes
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Caster Wheel Materials & Selection Guide

Caster Wheel Materials & Selection Guide
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Polyolefin Wheels
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High Temperature Wheels
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Hand Truck Wheels
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Atx Off-road Wheels
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Phenolic Wheels
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Metal Wheels (All Types)
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Flat-free (Foam-filled)
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Wheel Replacement Parts
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Caster Plate Mounting Hardware

Caster Plate Mounting Hardware
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Quick Change Caster Pads
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Caster Frames - Swivel & Rigid
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Sockets & T-nuts For Casters
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UV-C Disinfection Systems

Brand NemesisType UV-C air and surface unit
One product is listed, the Nemesis Hydra Extreme, a fixture that combines UV-C surface light, UV-C air treatment, LED ambient lighting and an ionizer. UV-C light harms skin and eyes, so follow the maker's instructions for occupied rooms and interlocks.

1 option in this exact size and spec. See all casters by load capacity and mount type › or call 844-439-4335 for a cross-reference.

TieredPricing
HYDRA EXTREME - The ultimate UV-C, ionizing disinfection solution Nemesis
In Stock · Same/Next Day
NEMESIS
Nemesis Hydra Extreme UV-C Air & Surface Disinfection System
Part # HYDRA-EXTREME
$3,683.00
Volume pricing available
Size—
Capacity—
Wheel—
Mount—
Type—
HYDRA EXTREME The ultimate UV-C, ionizing disinfection solutionDESCRIPTION The ultimate UV-C, ionizing disinfection solution....
Shop Product

The unit on this page

Item Functions listed Install
Nemesis Hydra Extreme UV-C surface light, UV-C air treatment, LED ambient light, ionizer Retrofits into an existing fixture location

From the product listing [S1].

Before you buy

  1. Exposure: direct UV-C light must not reach people or pets. Plan who can be in the room when the surface lamp runs.
  2. Install: it mounts as a fixture, so check ceiling layout and wiring with an electrician.
  3. Claims: ask the maker for test data on the organisms and room size that matter to you.

UV-C unit questions

What does the Hydra Extreme combine?

UV-C surface light, UV-C air treatment, LED ambient lighting and an ionizer in one fixture.

Is UV-C safe to run with people in the room?

Direct UV-C exposure is harmful to skin and eyes. Follow the maker's guidance on occupied use.

Jordan Wilson, CasterHQ · reviewed October 20, 2026 · 844-439-4335 · info@casterhq.com

Sources

  • [S1] CasterHQ product fields (rated load, diameter, width, wheel and core material, temperature range, mount) and product descriptions for the items on this page, pulled October 20, 2026.

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