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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
Plate Casters
Plate Casters
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Stem Casters
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Stainless Casters
Ergonomic Casters
Ergonomic Casters
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Leveling Casters
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Caster Wheel Materials & Selection Guide

Caster Wheel Materials & Selection Guide
Polyolefin Wheels

Polyolefin Wheels
High Temperature Wheels

High Temperature Wheels
Track Wheels (All Types)

Track Wheels (All Types)
Hand Truck Wheels

Hand Truck Wheels
Rubber Wheels (All Types)

Rubber Wheels (All Types)
Nylon Wheels

Nylon Wheels
Keyed Drive Wheels

Keyed Drive Wheels
Pneumatic Wheels

Pneumatic Wheels
Atx Off-road Wheels

Atx Off-road Wheels
Poly Wheels (All Types)

Poly Wheels (All Types)
Phenolic Wheels

Phenolic Wheels
Metal Wheels (All Types)

Metal Wheels (All Types)
Flat-free (Foam-filled)

Flat-free (Foam-filled)
Wheel Replacement Parts

Wheel Replacement Parts
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Caster Plate Mounting Hardware

Caster Plate Mounting Hardware
Quick Change Caster Pads

Quick Change Caster Pads
Caster Frames - Swivel & Rigid

Caster Frames - Swivel & Rigid
Sockets & T-nuts For Casters

Sockets & T-nuts For Casters
Washers

Washers
Expanding Rubber Adapter Kits

Expanding Rubber Adapter Kits
Bumpers

Bumpers
Axles & Nuts

Axles & Nuts
Spanner Bushings

Spanner Bushings
Caster Shims & Weld Plates

Caster Shims & Weld Plates
Furniture Glides

Furniture Glides
Floor Truck Locks

Floor Truck Locks
Swivel Locks

Swivel Locks
Wheel Bearings

Wheel Bearings
Back to Material Handling
Furniture Dollies

Furniture Dollies
Hydraulic Lift Tables

Hydraulic Lift Tables
Utility Carts

Utility Carts
Pallet Dollies

Pallet Dollies
Safe & Applicance Dollies

Safe & Applicance Dollies
Carts & Platform Trucks

Carts & Platform Trucks
Hand Trucks & Accessories

Hand Trucks & Accessories
Ratchet Straps & Tie Downs

Ratchet Straps & Tie Downs
Three Wheel Dollies

Three Wheel Dollies
Wire Shelving

Wire Shelving
Pallet Jacks

Pallet Jacks
Stackers

Stackers
Heavy Duty Tilt Trucks

Heavy Duty Tilt Trucks
Ball Transfers

Ball Transfers
Moving Supplies

Moving Supplies
Back to Applications
Specialty Casters

Specialty Casters
Gate Casters

Gate Casters
BBQ Pit & Smoker Casters

BBQ Pit & Smoker Casters
Keyed Drive Wheels

Keyed Drive Wheels
Drywall Cart Casters

Drywall Cart Casters
Skid Wheels & Casters for RVs

Skid Wheels & Casters for RVs
Leveling Casters

Leveling Casters
Shopping Cart Wheels & Casters

Shopping Cart Wheels & Casters
Band Equipment Casters & Wheels

Band Equipment Casters & Wheels
Low Profile Casters

Low Profile Casters
Cart Wheels & Casters

Cart Wheels & Casters
Toolbox Caster Sets

Toolbox Caster Sets
Bakery & High Temperature Casters

Bakery & High Temperature Casters
Kitchen Prep Table Caster Sets

Kitchen Prep Table Caster Sets
Wire Shelving Casters

Wire Shelving Casters
Silent Glide Casters

Silent Glide Casters
Back to Brands
ALBION CASTERS

ALBION CASTERS
BLICKLE CASTERS

BLICKLE CASTERS
HAMILTON CASTERS

HAMILTON CASTERS
P&H CASTERS

P&H CASTERS
SHEPHERD CASTERS

SHEPHERD CASTERS
B&P MANUFACTURING

B&P MANUFACTURING
SAFE 'N SECURE

SAFE 'N SECURE
HUDSON BEARINGS

HUDSON BEARINGS
QUANTUM STORAGE

QUANTUM STORAGE
AMERICAN MOVING SUPPLIES

AMERICAN MOVING SUPPLIES
COLSON CASTERS

COLSON CASTERS
DURASTAR CASTERS

DURASTAR CASTERS
CORPS DESIGN

CORPS DESIGN
FAULTLESS MEDICAL CASTERS

FAULTLESS MEDICAL CASTERS

W/ Forged Steel Wheels

Made to Order · 4-6 Wk
6000 lbs
Hamilton Son of Mini-Mite 6000 lbs Load Capacity Swivel Caster - Low Profile Dual Wheel, 3 1/8" x 3" Steel Roller with Needle Bearings, 3/4" Axle - S-SOMM2-313FS Hamilton
Made in USA
Hamilton S-SOMM2-313FS 3 1/8" x 3" Steel Swivel Dual Wheel Caster – 6000 lb
Part # S-SOMM2-313FS
$1,674.00 USD
Bulk Pricing
50+
5% off
100+
10% off
200+
15% off
Load rating
6000 lbs
Diameter 3-1/8"
Capacity 6000 lbs
More Details Less Details
Width 3"
Height 4.75"
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton Son of Mini-Mite Swivel Caster - S-SOMM2-313FS Optimal Performance & Durability | Load...
Made to Order · 4-6 Wk
4000 lbs
Hamilton 4000 lbs Load Capacity Swivel Caster - Son of Mini-Mite Low Profile - 3 1/8" x 3" Steel Roller - Dual Needle Thrust & Roller Bearings - 3/4" Axle Hamilton
Made in USA
Hamilton 3 1/8" x 3" Steel Swivel Caster – 4000 lb
Part # S-SOMM-313FS
$1,142.00 USD
Bulk Pricing
50+
5% off
100+
10% off
200+
15% off
Load rating
4000 lbs
Diameter 3-1/8"
Capacity 4000 lbs
More Details Less Details
Width 3"
Height 4.75"
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton 4000 lbs Load Capacity Swivel Caster: Son of Mini-Mite Low Profile Design Premium...
Made to Order · 4-6 Wk
6000 lbs
Hamilton Son of Mini-Mite 6000 lbs Load Capacity Rigid Caster - Low Profile Dual Wheel, 3 1/8" x 3" Steel Roller with Needle Bearings, 3/4" Axle - R-SOMM2-313FS Hamilton
Made in USA
Hamilton R-SOMM2-313FS 3 1/8" x 3" Steel Rigid Dual Wheel Caster – 6000 lb
Part # R-SOMM2-313FS
$1,446.00 USD
Bulk Pricing
50+
5% off
100+
10% off
200+
15% off
Load rating
6000 lbs
Diameter 3-1/8"
Capacity 6000 lbs
More Details Less Details
Width 3"
Height 4.75"
Temp Range -20°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Hamilton Son of Mini-Mite Rigid Caster - R-SOMM2-313FS Optimal Performance & Durability | Load...
Made to Order · 4-6 Wk
4000 lbs
Hamilton 4000 lbs Load Capacity Rigid Caster - Son of Mini-Mite Low Profile - 3 1/8" x 3" Steel Roller - Dual Needle Thrust & Roller Bearings - 3/4" Axle Hamilton
Made in USA
Hamilton 3 1/8" x 3" Steel Rigid Caster – 4000 lb
Part # R-SOMM-313FS
$530.00 USD
Bulk Pricing
50+
5% off
100+
10% off
200+
15% off
Load rating
4000 lbs
Diameter 3-1/8"
Capacity 4000 lbs
More Details Less Details
Width 3"
Height 4.75"
Temp Range -20°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Hamilton 4000 lbs Load Capacity Rigid Caster: Son of Mini-Mite Low Profile Design Premium...

Hamilton Son of Mini-Mite Casters with Forged Steel Wheels

High-Strength Forged Steel Wheels | Dependable Load Capacity

Robust and Versatile Casters for Every Application

Introducing the Hamilton Son of Mini-Mite Casters with Forged Steel Wheels – a hallmark of strength and dependability. Engineered with high-strength forged steel wheels, these casters guarantee superior load capacity and durability. Ideal for a wide range of industrial applications, they promise a blend of longevity and unmatched performance.

Experience the Hamilton Difference with the Mini-Mite Series

Elevate your equipment's mobility with Hamilton's Son of Mini-Mite series. Famed for their rugged construction and dependable load-bearing, these casters are a staple in industries that demand the very best. Choose Hamilton – your partner in premium industrial caster solutions.

Seeking the Right Caster? Hamilton Experts Await Your Call!

Contemplating the Son of Mini-Mite Casters for your industrial needs? Our dedicated Hamilton Caster Experts are available to assist. Contact us on weekdays from 8 am - 5 pm for personalized caster recommendations.

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