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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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4" x 2" Casters

Diameter: 4, 6 inTread: 2 inCapacity: up to 2,025 lb
Industrial tread compounds casters here serve heavy warehouse carts, die carts, and plant fixtures. Expect wheel diameters 4, 6 in, plate-mount frames, and capacities 1,200 to 2,025 lb. Bring plate and stem measurements when replacing unmarked casters so the new corners sit level. Softer treads quiet finished floors; harder compounds last longer on chips, heat, and rough concrete. These heavy-duty options cover everyday heavy warehouse carts, die carts, and plant fixtures without jumping to extreme forged series.

Shop by type

3 types

Wheel = wheel diameter · capacity is per caster.

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

1200 lbs
TieredPricing
Hamilton Spinfinity Maintenance-Free Kingpinless ZFWH Series Swivel Caster with 4" x 2" UltraGlide (70D) Twin Wheel Black Tread on Aluminum Core with 3/4" Sealed Precision Ball Bearings Hamilton
Made to Order · 4-6 Wk
Hamilton S-ZFWH-4SWF70D 4" x 2" UltraGlide Swivel Kingpinless Caster – 1200 lb
Part # S-ZFWH-4SWF70D
from $330.00
Volume pricing available
PolyurethanePlate
Load rating
1200 lbs
Diameter 4"
Capacity 1200 lbs
Wheel Polyurethane
Mount Plate
Plate Size 4" x 5"
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-5/8" x 3-5/8"
Core Aluminum
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton Spinfinity Maintenance-Free Kingpinless ZFWH Series Swivel Caster with 4" x 2" UltraGlide (70D)...
Shop Product
2025 lbs
TieredPricing
Hamilton Spinfinity Maintenance-Free Kingpinless ZFWH Series Rigid Caster with 6" x 2" UltraGlide (70D) Twin Wheel BlackTread on Aluminum Core with 3/4" Sealed Precision Ball Bearings Hamilton
Made to Order · 4-6 Wk
Hamilton R-ZFWH-6SWF70D 6" x 2" UltraGlide Rigid Caster – 2025 lb
Part # R-ZFWH-6SWF70D
from $334.00
Volume pricing available
PolyurethanePlate
Load rating
2025 lbs
Diameter 6"
Capacity 2025 lbs
Wheel Polyurethane
Mount Plate
Plate Size 4" x 4-1/2"
More Details Less Details
Width 2"
Height 7-1/2"
Bolt Pattern 2-5/8" x 3-5/8"
Core Aluminum
Temp Range -20°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Hamilton Spinfinity Maintenance-Free Kingpinless ZFWH Series Rigid Caster with 6" x 2" UltraGlide (70D)...
Shop Product

Spinfinity ZFWH Caster Series with UltraGlide XC Wheels

The new UltraGlide™ XC represents Hamilton’s latest modular wheel design to reduce the amount of energy needed to move loads in manual or powered applications.

The new UltraGlide™, features independent swivel surfaces that eliminates scrubbing, making it much easier to turn. The wheel assembly also includes split outer raceways to minimize friction that provides low startup and maintain forces.

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