Caster & Wheel Hardware | Axles, Bearings, Locks & Accessories - CasterHQ

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Caster & Wheel Hardware — Replacement Parts & Accessories

Quick take: Caster hardware and accessories are used to repair, upgrade, secure, or customize caster assemblies for carts, equipment, furniture, and industrial applications.

Replacement parts Industrial & MRO Caster repair Hardware & locks

Caster & wheel hardware categories Available configurations (expand/collapse) ⌄

Extractable answer: These components are used to replace worn parts, improve safety, and extend caster service life.

Wheel bearings
Axles & nuts
Bumpers
Floor truck locks
Caster frames — swivel & rigid
Caster plate mounting hardware
Spanner bushings
Expanding rubber adapter kits
Sockets & T-nuts for casters
Washers
Furniture glides
Swivel locks

When to replace caster hardware Common failure points (expand) ⌄

Extractable answer: Hardware should be replaced when casters bind, wobble, fail to lock, or show excessive wear.

Bearings: noise, resistance, or uneven rolling.
Axles: bent, corroded, or loose fit.
Locks: inability to hold equipment in place.
Frames: deformation or cracked welds.

Benefits of upgrading caster components Performance & safety gains (expand) ⌄

Upgrade rule: Replacing small hardware components often restores full caster performance at a fraction of the cost of full replacement.

Improved maneuverability and tracking.
Reduced vibration and noise.
Increased load stability and safety.
Extended service life of existing equipment.

Engineering notes (verification) Fit and performance considerations (expand) ⌄

Extractable answer: Proper fit is critical. Hardware dimensions, thread pitch, and material compatibility affect safety and performance.

Axle diameter & length: must match wheel hub and frame.
Bearing type: affects rolling resistance and longevity.
Lock engagement: must fully engage under load.
Mounting hardware: torque and alignment matter.

Last updated: February 2026
Author: CasterHQ Content Team
Reviewed by: CasterHQ Engineering & Operations

Caster Engineering Tools

These calculators apply to any caster application—even if you’re browsing a different category. Use them to estimate load rating per caster, select wheel material, and estimate push/pull force. Expand any tool for full analysis + a share-ready spec line.

Get Application Help Open Engineering Tools Hub

CasterSpec^™ Load Calculator

Fast estimate. Expand for safety factor + uneven floor + spec output.

▾ Expand full calculator

Load

Total load (lb)

# casters

Floor / bumps

Copied.

WheelMatch^™ Material Selector

Fast recommendation. Expand for noise, duty cycle, floor protection.

▾ Expand full selector

Wheel

Floor

Environment

Copied.

PushForce^™ Push/Pull Calculator

Estimate effort fast. Expand for operators, materials, bumps, startup mode.

▾ Expand full push/pull

Push

Load (lb)

Wheel Ø

Floor

Copied.

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Engineering Tools Hub

All tools + dedicated pages (best for sharing and EEAT). Open hub

Load Calculator (dedicated)

Share this page when discussing load rating per caster. Open load tool

Wheel Diameter Calculator

Publish the dedicated page, then replace this link. Find in hub

Failure Diagnosis Tool

Publish the dedicated page, then replace this link. Find in hub

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(1) Piece - 1/2" x 2-7/8" Zerk Axle & Nut CasterHQ

(1) Piece - 1/2" x 2-7/8" Zerk Axle & Nut

(1) Piece - 1/2" x 2-7/8" Zerk Axle & Nut $4.00 USD

(1) Piece - 1/2" x 3" Zerk Axle & Nut CasterHQ

(1) Piece - 1/2" x 3" Zerk Axle & Nut

(1) Piece - 1/2" x 3" Zerk Axle & Nut $4.00 USD

(1) Piece - 1/2" x 3-3/8" Zerk Axle & Nut CasterHQ

(1) Piece - 1/2" x 3-3/8" Zerk Axle & Nut

(1) Piece - 1/2" x 3-3/8" Zerk Axle & Nut $4.00 USD

(1) Piece - 1/2" x 4" Plain Axle & Nut CasterHQ

(1) Piece - 1/2" x 4" Plain Axle & Nut

(1) Piece - 1/2" x 4" Plain Axle & Nut $10.00 USD

(1) Piece - 3/4" x 4-1/4" Zerk Axle & Nut CasterHQ

(1) Piece - 3/4" x 4-1/4" Zerk Axle & Nut

(1) Piece - 3/4" x 4-1/4" Zerk Axle & Nut $10.00 USD

(1) Piece - 3/4" x 4-3/4" Zerk Axle & Nut CasterHQ

(1) Piece - 3/4" x 4-3/4" Zerk Axle & Nut

(1) Piece - 3/4" x 4-3/4" Zerk Axle & Nut $11.00 USD

(1) Piece - 3/8" x 2-1/4" Axle & Nut CasterHQ

(1) Piece - 3/8" x 2-1/4" Axle & Nut

(1) Piece - 3/8" x 2-1/4" Axle & Nut $3.00 USD

(1) Piece - Stainless 3/8" x 2-1/4" Zerk Axle & Nut CasterHQ

(1) Piece - Stainless 3/8" x 2-1/4" Zerk Axle & Nut

(1) Piece - Stainless 3/8" x 2-1/4" Zerk Axle & Nut $7.00 USD

(1) Piece - Stainless Steel - 1/2" x 3-3/8" Zerk Axle & Nut CasterHQ

(1) Piece - Stainless Steel - 1/2" x 3-3/8" Zerk Axle & Nut

(1) Piece - Stainless Steel - 1/2" x 3-3/8" Zerk Axle & Nut $14.00 USD

1" Expanding Rubber Adapter Kit CasterHQ

1" Expanding Rubber Adapter Kit

1" Expanding Rubber Adapter Kit $8.00 USD

1-1/2" Expanding Rubber Adapter Kit CasterHQ

1-1/2" Expanding Rubber Adapter Kit

1-1/2" Expanding Rubber Adapter Kit $8.00 USD

1-1/8" Expanding Rubber Adapter Kit CasterHQ

1-1/8" Expanding Rubber Adapter Kit

1-1/8" Expanding Rubber Adapter Kit $8.00 USD

1-3/16" Expanding Rubber Adapter Kit CasterHQ

1-3/16" Expanding Rubber Adapter Kit

1-3/16" Expanding Rubber Adapter Kit $8.00 USD

1-3/4" Expanding Rubber Adapter Kit CasterHQ

1-3/4" Expanding Rubber Adapter Kit

1-3/4" Expanding Rubber Adapter Kit $8.00 USD

1-3/8" Expanding Rubber Adapter Kit CasterHQ

1-3/8" Expanding Rubber Adapter Kit

1-3/8" Expanding Rubber Adapter Kit $8.00 USD

1-7/8" Expanding Rubber Adapter Kit CasterHQ

1-7/8" Expanding Rubber Adapter Kit

1-7/8" Expanding Rubber Adapter Kit $10.00 USD

1/2" Caster Plate Mounting Hardware Combo Pack - 16 Pieces of Each CasterHeadquarter

1/2" Caster Plate Mounting Hardware Combo Pack - 16 Pieces of Each

1/2" Caster Plate Mounting Hardware Combo Pack - 16 Pieces of Each $62.00 USD

1/2" Caster Plate Mounting Hardware Combo Pack - 4 Pieces of Each CasterHeadquarter

1/2" Caster Plate Mounting Hardware Combo Pack - 4 Pieces of Each

1/2" Caster Plate Mounting Hardware Combo Pack - 4 Pieces of Each $18.00 USD

1/2" I.D. Flanged Ball Bearing x 1-3/8" O.D CasterHQ

1/2" I.D. Flanged Ball Bearing x 1-3/8" O.D

1/2" I.D. Flanged Ball Bearing x 1-3/8" O.D $10.00 USD

1/2" ID X 1-3/16" OD PRECISION BALL BEARING FOR 2" WIDE CASTER WHEELS - One (1) Piece CasterHQ

1/2" ID X 1-3/16" OD PRECISION BALL BEARING FOR 2" WIDE CASTER WHEELS - One (1) Piece

1/2" ID X 1-3/16" OD PRECISION BALL BEARING FOR 2" WIDE CASTER WHEELS - One (1) Piece $8.00 USD

1/2" ID x 3/4" OD x 1-7/8" Long - Steel Spanner Bushing CasterHQ

1/2" ID x 3/4" OD x 1-7/8" Long - Steel Spanner Bushing

1/2" ID x 3/4" OD x 1-7/8" Long - Steel Spanner Bushing $7.00 USD

1/2" ID x 3/4" OD x 2-7/16" Long - Stainless Steel Spanner Bushing CasterHQ

1/2" ID x 3/4" OD x 2-7/16" Long - Stainless Steel Spanner Bushing

1/2" ID x 3/4" OD x 2-7/16" Long - Stainless Steel Spanner Bushing $16.00 USD

1/2" ID x 3/4" OD x 2-7/16" Long - Steel Spanner Bushing CasterHQ

1/2" ID x 3/4" OD x 2-7/16" Long - Steel Spanner Bushing

1/2" ID x 3/4" OD x 2-7/16" Long - Steel Spanner Bushing $7.00 USD

10" Rigid Pneumatic Caster Rig Only - 350 LBS Capacity CasterHQ

10" Rigid Pneumatic Caster Rig Only - 350 LBS Capacity

10" Rigid Pneumatic Caster Rig Only - 350 LBS Capacity from $23.00 USD

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10" Swivel Pneumatic Caster Rig Only - 350 LBS Capacity CasterHQ

10" Swivel Pneumatic Caster Rig Only - 350 LBS Capacity

10" Swivel Pneumatic Caster Rig Only - 350 LBS Capacity from $23.00 USD

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2-3/8" x 3-5/8" Unplated Weld-On Top Plate/Shim for Easy Caster Installation CasterHQ

2-3/8" x 3-5/8" Unplated Weld-On Top Plate/Shim for Easy Caster Installation

2-3/8" x 3-5/8" Unplated Weld-On Top Plate/Shim for Easy Caster Installation $9.00 USD

2-3/8" x 3-5/8" Zinc Plated Bolt-On Top Plate/Shim for Easy Caster Installation CasterHQ

2-3/8" x 3-5/8" Zinc Plated Bolt-On Top Plate/Shim for Easy Caster Installation

2-3/8" x 3-5/8" Zinc Plated Bolt-On Top Plate/Shim for Easy Caster Installation $9.00 USD

3" x 1-1/4" Rigid Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity CasterHQ

3" x 1-1/4" Rigid Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity

3" x 1-1/4" Rigid Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity $6.00 USD

3" x 1-1/4" Swivel Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity CasterHQ

3" x 1-1/4" Swivel Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity

3" x 1-1/4" Swivel Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity $13.00 USD

Diameter: Made to fit a 3" x 1-1/4" Caster Wheel

3-1/2" x 1-1/4" Rigid Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity CasterHQ

3-1/2" x 1-1/4" Rigid Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity

3-1/2" x 1-1/4" Rigid Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity $7.00 USD

3-1/2" x 1-1/4" Swivel Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity CasterHQ

3-1/2" x 1-1/4" Swivel Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity

3-1/2" x 1-1/4" Swivel Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity $14.00 USD

Diameter: Made to fit a 3-1/2" x 1-1/4" Caster Wheel

3-1/8" x 4-1/8" Zinc Plated Bolt-On Top Plate/Shim for Easy Caster Installation CasterHQ

3-1/8" x 4-1/8" Zinc Plated Bolt-On Top Plate/Shim for Easy Caster Installation

3-1/8" x 4-1/8" Zinc Plated Bolt-On Top Plate/Shim for Easy Caster Installation $10.00 USD

3/4" Expanding Rubber Adapter Kit CasterHQ

3/4" Expanding Rubber Adapter Kit

3/4" Expanding Rubber Adapter Kit $8.00 USD

3/4" I.D. Flanged Ball Bearing x 1-3/8" O.D CasterHQ

3/4" I.D. Flanged Ball Bearing x 1-3/8" O.D

3/4" I.D. Flanged Ball Bearing x 1-3/8" O.D $10.00 USD

3/4" ID x 1" OD x 2-7/8" Long - Steel Spanner Bushing CasterHQ

3/4" ID x 1" OD x 2-7/8" Long - Steel Spanner Bushing

3/4" ID x 1" OD x 2-7/8" Long - Steel Spanner Bushing $11.00 USD

3/4" ID x 1" OD x 3-3/8" Long - Steel Spanner Bushing CasterHQ

3/4" ID x 1" OD x 3-3/8" Long - Steel Spanner Bushing

3/4" ID x 1" OD x 3-3/8" Long - Steel Spanner Bushing $13.00 USD

3/8" Caster Plate Mounting Hardware Combo Pack - 16 Pieces of Each CasterHQ

3/8" Caster Plate Mounting Hardware Combo Pack - 16 Pieces of Each

3/8" Caster Plate Mounting Hardware Combo Pack - 16 Pieces of Each $51.00 USD

3/8" Caster Plate Mounting Hardware Combo Pack - 4 Pieces of Each CasterHQ

3/8" Caster Plate Mounting Hardware Combo Pack - 4 Pieces of Each

3/8" Caster Plate Mounting Hardware Combo Pack - 4 Pieces of Each $14.00 USD

3/8" ID x 1/2" OD x 1-11/16" Long - Stainless Steel Spanner Bushing CasterHQ

3/8" ID x 1/2" OD x 1-11/16" Long - Stainless Steel Spanner Bushing

3/8" ID x 1/2" OD x 1-11/16" Long - Stainless Steel Spanner Bushing $11.00 USD

4 Inch Kickbar Floor Truck Lock | 4" x 4-1/2" Top Plate CasterHQ

4 Inch Kickbar Floor Truck Lock | 4" x 4-1/2" Top Plate

4 Inch Kickbar Floor Truck Lock | 4" x 4-1/2" Top Plate $41.00 USD

4" x 1-1/4" Rigid Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity CasterHQ

4" x 1-1/4" Rigid Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity

4" x 1-1/4" Rigid Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity $7.00 USD

Diameter: Made to fit a 4" x 1-1/4" Caster Wheel

4" x 1-1/4" Swivel Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity CasterHQ

4" x 1-1/4" Swivel Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity

4" x 1-1/4" Swivel Caster Frame - 2-3/8" x 3-5/8" Mounting Plate - 350 lbs Capacity $14.00 USD

Diameter: Made to fit a 4" x 1-1/4" Caster Wheel

4" x 2" Rigid Caster Yoke / Rig/ Fork / Frame / - Capacity up to 1,000 lbs CasterHQ

4" x 2" Rigid Caster Yoke / Rig/ Fork / Frame / - Capacity up to 1,000 lbs

4" x 2" Rigid Caster Yoke / Rig/ Fork / Frame / - Capacity up to 1,000 lbs from $10.00 USD

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4" x 2" Swivel Caster Yoke / Rig/ Fork / Frame / - Capacity up to 1,000 lbs CasterHQ

4" x 2" Swivel Caster Yoke / Rig/ Fork / Frame / - Capacity up to 1,000 lbs

4" x 2" Swivel Caster Yoke / Rig/ Fork / Frame / - Capacity up to 1,000 lbs $13.00 USD

4" x 4-1/2" Unplated Weld-On Top Plate/Shim for Easy Caster Installation CasterHQ

4" x 4-1/2" Unplated Weld-On Top Plate/Shim for Easy Caster Installation

4" x 4-1/2" Unplated Weld-On Top Plate/Shim for Easy Caster Installation $12.00 USD

4" x 4-1/2" Zinc Plated Bolt-On Top Plate/Shim for Easy Caster Installation CasterHQ

4" x 4-1/2" Zinc Plated Bolt-On Top Plate/Shim for Easy Caster Installation

4" x 4-1/2" Zinc Plated Bolt-On Top Plate/Shim for Easy Caster Installation $12.00 USD

4-1/2" x 6-1/4" Unplated Weld-On Top Plate/Shim for Easy Caster Installation CasterHQ

4-1/2" x 6-1/4" Unplated Weld-On Top Plate/Shim for Easy Caster Installation

4-1/2" x 6-1/4" Unplated Weld-On Top Plate/Shim for Easy Caster Installation $25.00 USD

4-Position Swivel Lock for 2" Wide Casters CasterHQ

4-Position Swivel Lock for 2" Wide Casters

4-Position Swivel Lock for 2" Wide Casters $18.00 USD

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