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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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Thermoplastic Rubber Casters - Stainless Swivel

Diameter: 4 to 8 inTread: 2 inCapacity: 300 to 600 lb per casterPlate sizes: 4 x 4-1/2
You get eight thermoplastic rubber casters here from Durastar with 4 to 8 in wheels, rated 300 to 600 lb each. The top plate is 4 x 4-1/2 in on all of them, and you can pick swivel or rigid and without brakes. You will find a 5 x 2 in thermoplastic rubber rigid stainless caster rated 350 lb and an 8 x 2 in thermoplastic rubber swivel stainless caster rated 600 lb here.

Shop by type

4 types

Wheel = wheel diameter · capacity is per caster.

600 lbs
TieredPricing
Durastar Medium Heavy Duty S34 Series - 8" x 2" Thermoplastic Rubber Swivel Caster - 600 lb Capacity, & 4" x 4-1/2" Stainless Top Plate Durastar
Ships in 1-3 Business Days
8" x 2" Thermoplastic Rubber Swivel Stainless Caster – 600 lb · DuraStar S34 Series · Model S34-S-820-TPR-03
Part # S34-S-820-TPR-03
from $68.00
Volume pricing available
Gray RubberPlate
Load rating
600 lbs
Size8" x 2"
Capacity600 lbs
WheelGray Rubber
MountPlate 4" x 4-1/2"
TypeSwivel
More Details Less Details
Width 2"
Height 9-1/2"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Polyolefin
Temp Range -45°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Stainless Steel
Durastar Medium Heavy Duty S34 Series - 8" x 2" Thermoplastic Rubber Swivel Caster...
Shop Product
500 lbs
TieredPricing
Durastar Medium Heavy Duty S34 Series - 6" x 2" Thermoplastic Rubber Swivel Caster - 500 lb Capacity, & 4" x 4-1/2" Stainless Top Plate Durastar
Ships in 1-3 Business Days
6" x 2" Thermoplastic Rubber Swivel Stainless Caster – 500 lb · DuraStar S34 Series
Part # S34-S-620-TPR-03
from $62.00
Volume pricing available
Gray RubberPlate
Load rating
500 lbs
Size6" x 2"
Capacity500 lbs
WheelGray Rubber
MountPlate 4" x 4-1/2"
TypeSwivel
More Details Less Details
Width 2"
Height 7-1/2"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Polyolefin
Temp Range -45°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Stainless Steel
Durastar Medium Heavy Duty S34 Series - 6" x 2" Thermoplastic Rubber Swivel Caster...
Shop Product
350 lbs
TieredPricing
Durastar Medium Heavy Duty S34 Series - 5" x 2" Thermoplastic Rubber Swivel Caster - 350 lb Capacity, & 4" x 4-1/2" Stainless Top Plate Durastar
Ships in 1-3 Business Days
5" x 2" Thermoplastic Rubber Swivel Stainless Caster – 350 lb · DuraStar S34 Series · Model S34-S-520-TPR-03
Part # S34-S-520-TPR-03
from $56.00
Volume pricing available
Gray RubberPlate
Load rating
350 lbs
Size5" x 2"
Capacity350 lbs
WheelGray Rubber
MountPlate 4" x 4-1/2"
TypeSwivel
More Details Less Details
Width 2"
Height 6-1/2"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Polyolefin
Temp Range -45°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Stainless Steel
Durastar Medium Heavy Duty S34 Series - 5" x 2" Thermoplastic Rubber Swivel Caster...
Shop Product
300 lbs
TieredPricing
Durastar Medium Heavy Duty S34 Series - 4" x 2" Thermoplastic Rubber Swivel Caster - 300 lb Capacity, & 4" x 4-1/2" Stainless Top Plate Durastar
Ships in 1-3 Business Days
4" x 2" Thermoplastic Rubber Swivel Stainless Caster – 300 lb · DuraStar S34 Series
Part # S34-S-420-TPR-03
from $54.00
Volume pricing available
Gray RubberPlate
Load rating
300 lbs
Size4" x 2"
Capacity300 lbs
WheelGray Rubber
MountPlate 4" x 4-1/2"
TypeSwivel
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Polyolefin
Temp Range -45°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Stainless Steel
Durastar Medium Heavy Duty S34 Series - 4" x 2" Thermoplastic Rubber Swivel Caster...
Shop Product
600 lbs
TieredPricing
Durastar Medium Heavy Duty S34 Series - 8" x 2" Thermoplastic Rubber Rigid Caster - 600 lb Capacity, & 4" x 4-1/2" Stainless Top Plate Durastar
Ships in 1-3 Business Days
8" x 2" Thermoplastic Rubber Rigid Stainless Caster – 600 lb · DuraStar S34 Series · Model S34-R-820-TPR-03
Part # S34-R-820-TPR-03
from $55.00
Volume pricing available
Gray RubberPlate
Load rating
600 lbs
Size8" x 2"
Capacity600 lbs
WheelGray Rubber
MountPlate 4" x 4-1/2"
TypeRigid
More Details Less Details
Width 2"
Height 9-1/2"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Polyolefin
Temp Range -45°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Stainless Steel
Durastar Medium Heavy Duty S34 Series - 8" x 2" Thermoplastic Rubber Rigid Caster...
Shop Product
500 lbs
TieredPricing
Durastar Medium Heavy Duty S34 Series - 6" x 2" Thermoplastic Rubber Rigid Caster - 500 lb Capacity, & 4" x 4-1/2" Stainless Top Plate Durastar
Ships in 1-3 Business Days
6" x 2" Thermoplastic Rubber Rigid Stainless Caster – 500 lb · DuraStar S34 Series
Part # S34-R-620-TPR-03
from $51.00
Volume pricing available
Gray RubberPlate
Load rating
500 lbs
Size6" x 2"
Capacity500 lbs
WheelGray Rubber
MountPlate 4" x 4-1/2"
TypeRigid
More Details Less Details
Width 2"
Height 7-1/2"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Polyolefin
Temp Range -45°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Stainless Steel
Durastar Medium Heavy Duty S34 Series - 6" x 2" Thermoplastic Rubber Rigid Caster...
Shop Product
350 lbs
TieredPricing
Durastar Medium Heavy Duty S34 Series - 5" x 2" Thermoplastic Rubber Rigid Caster - 350 lb Capacity, & 4" x 4-1/2" Stainless Top Plate Durastar
Ships in 1-3 Business Days
5" x 2" Thermoplastic Rubber Rigid Stainless Caster – 350 lb · DuraStar S34 Series
Part # S34-R-520-TPR-03
from $46.00
Volume pricing available
Gray RubberPlate
Load rating
350 lbs
Size5" x 2"
Capacity350 lbs
WheelGray Rubber
MountPlate 4" x 4-1/2"
TypeRigid
More Details Less Details
Width 2"
Height 6-1/2"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Polyolefin
Temp Range -45°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Stainless Steel
Durastar Medium Heavy Duty S34 Series - 5" x 2" Thermoplastic Rubber Rigid Caster...
Shop Product
300 lbs
TieredPricing
Durastar Medium Heavy Duty S34 Series - 4" x 2" Thermoplastic Rubber Rigid Caster - 300 lb Capacity, & 4" x 4-1/2" Stainless Top Plate Durastar
Ships in 1-3 Business Days
4" x 2" Thermoplastic Rubber Rigid Stainless Caster – 300 lb · DuraStar S34 Series
Part # S34-R-420-TPR-03
from $43.00
Volume pricing available
Gray RubberPlate
Load rating
300 lbs
Size4" x 2"
Capacity300 lbs
WheelGray Rubber
MountPlate 4" x 4-1/2"
TypeRigid
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Polyolefin
Temp Range -45°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Stainless Steel
Durastar Medium Heavy Duty S34 Series - 4" x 2" Thermoplastic Rubber Rigid Caster...
Shop Product

Durastar S34 Stainless Steel TPR Casters

Durastar S34 Series medium-heavy duty stainless steel casters with thermoplastic rubber (TPR) wheels. Full 304 stainless steel construction for food processing, pharmaceutical, chemical, and marine environments. Heavier-duty than light-duty 2-3/8 × 3-5/8 stainless casters, the S34 handles medium-heavy industrial loads while maintaining full corrosion resistance.

Series: Durastar S34 | Frame: 304 stainless steel | Wheel: TPR | Duty: Medium-heavy | Wheel Sizes: 4″, 5″, 6″, 8″ | Load Range: Up to 800 lb per caster | Sealed precision bearings

Frequently Asked Questions

What is the Durastar S34 Series? ›
The S34 is Durastar's medium-heavy duty stainless steel caster series. It bridges light-duty stainless (2-3/8 × 3-5/8 plate) and heavy-duty industrial casters. Available with TPR, rubber on nylon, and Duratek rubber wheels.
S34 TPR vs. Rubber on Nylon vs. Duratek? ›
TPR: non-marking, quiet, best for smooth floors. Rubber on Nylon (RN): chemical-resistant core with rubber tread. Duratek (PPR): premium compound for heaviest loads and smoothest roll. All on the same S34 stainless frame.
Where are S34 stainless casters used? ›
Food processing plants, pharmaceutical cleanrooms, breweries, commercial kitchens, chemical handling, and marine docks. The 304 stainless resists rust, pitting, and corrosion from water, steam, and mild chemicals.

Related Rubber Caster Collections

Rubber Caster Hub S34 Rubber on Nylon S34 Duratek Rubber Light Duty Stainless TPR All Stainless Casters

CasterHQ — nationwide industrial caster and wheel supply. ISO-certified, ANSI-tested. Same-day dispatch on in-stock orders. Call 844-439-4335 or contact us for expert sizing help.

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