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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

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DuraStar 30 Series Polyurethane Casters · 8 Styles · Up to 1,250 lb · 4"–8" · Nylon · Tread

Plate sizes: 4 x 4-1/2Bolt holes: 2-5/8 x 3-5/8Diameter: 4, 5, 6, 8 inTread: 2 inCapacity: up to 1,250 lb
30 Series casters for chemical, food-contact, and washdown carts. Catalog chips cover top plates around 4 x 4-1/2, wheel diameters 4, 5, 6, 8 in, and polyurethane and nylon treads. Replace worn corners in matched sets when possible so the cart tracks straight under load. Confirm stem length and thread pitch on stem mounts so the shoulder seats flush in the boss. These medium-duty options cover everyday chemical, food-contact, and washdown carts without jumping to extreme forged series.

Shop by type

4 types

Wheel = wheel diameter · capacity is per caster.

1250 lbs
TieredPricing
Durastar Medium Heavy Duty 30 Series - 8" x 2" Polyurethane on Glass-filled Nylon Swivel Caster - 1250 lb Capacity, 4 x 4-1/2 Top Plate | Choose Bearing Options Durastar
Ships in 1-3 Business Days
8" x 2" Polyurethane on Nylon Swivel Caster – 1250 lb
Part # 30-S-820-MU-03
from $50.00
Volume pricing available
NylonPlate
Load rating
1250 lbs
Diameter 8"
Capacity 1250 lbs
Wheel Nylon
Mount Plate
Plate Size 4" x 4-1/2"
More Details Less Details
Width 2"
Height 9-1/2"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Temp Range Up to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Durastar Medium Heavy Duty 30 Series - 8" x 2" Polyurethane on Glass-filled Nylon...
Shop Product
1200 lbs
TieredPricing
Durastar Medium Heavy Duty 30 Series - 6" x 2" Polyurethane on Glass-filled Nylon Swivel Caster - 1200 lb Capacity, 4 x 4-1/2 Top Plate | Choose Bearing Options Durastar
Ships in 1-3 Business Days
6" x 2" Polyurethane on Nylon Swivel Caster – 1200 lb
Part # 30-S-620-MU-03
from $49.00
Volume pricing available
NylonPlate
Load rating
1200 lbs
Diameter 6"
Capacity 1200 lbs
Wheel Nylon
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" slotted to 3" x 3"
Temp Range -45°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Durastar Medium Heavy Duty 30 Series - 6" x 2" Polyurethane on Glass-filled Nylon...
Shop Product
1000 lbs
TieredPricing
Durastar Medium Heavy Duty 30 Series - 5" x 2" Polyurethane on Glass-filled Nylon Swivel Caster - 1000 lb Capacity, 4 x 4-1/2 Top Plate | Choose Bearing Options Durastar
Ships in 1-3 Business Days
5" x 2" Polyurethane on Nylon Swivel Caster – 1000 lb
Part # 30-S-520-MU-03
from $46.00
Volume pricing available
NylonPlate
Load rating
1000 lbs
Diameter 5"
Capacity 1000 lbs
Wheel Nylon
Mount Plate
Plate Size 4" x 4-1/2"
More Details Less Details
Width 2"
Height 6-1/2"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Temp Range -45°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Durastar Medium Heavy Duty 30 Series - 5" x 2" Polyurethane on Glass-filled Nylon...
Shop Product
800 lbs
TieredPricing
Durastar Medium Heavy Duty 30 Series - 4" x 2" Polyurethane on Glass-filled Nylon Swivel Caster - 800 lb Capacity, 4 x 4-1/2 Top Plate | Choose Bearing Options Durastar
Ships in 1-3 Business Days
4" x 2" Polyurethane on Nylon Swivel Caster – 800 lb
Part # 30-S-420-MU-03
from $41.00
Volume pricing available
NylonPlate
Load rating
800 lbs
Diameter 4"
Capacity 800 lbs
Wheel Nylon
Mount Plate
Plate Size 4" x 4-1/2"
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Temp Range Up to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Durastar Medium Heavy Duty 30 Series - 4" x 2" Polyurethane on Glass-filled Nylon...
Shop Product
1250 lbs
TieredPricing
Durastar Medium Heavy Duty 30 Series - 8" x 2" Polyurethane on Glass-filled Nylon Rigid Caster - 1250 lb Capacity, 4 x 4-1/2 Top Plate | Choose Bearing Options Durastar
Ships in 1-3 Business Days
8" x 2" Polyurethane Rigid Caster – 1250 lb
Part # 30-R-820-MU-03
from $49.00
Volume pricing available
NylonPlate
Load rating
1250 lbs
Diameter 8"
Capacity 1250 lbs
Wheel Nylon
Mount Plate
Plate Size 4" x 4-1/2"
More Details Less Details
Width 2"
Height 9-1/2"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Temp Range Up to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Durastar Medium Heavy Duty 30 Series - 8" x 2" Polyurethane on Glass-filled Nylon...
Shop Product
1200 lbs
TieredPricing
Durastar Medium Heavy Duty 30 Series - 6" x 2" Polyurethane on Glass-filled Nylon Rigid Caster - 1200 lb Capacity, 4 x 4-1/2 Top Plate | Choose Bearing Options Durastar
Ships in 1-3 Business Days
6" x 2" Polyurethane on Nylon Rigid Caster – 1200 lb
Part # 30-R-620-MU-03
from $48.00
Volume pricing available
NylonPlate
Load rating
1200 lbs
Diameter 6"
Capacity 1200 lbs
Wheel Nylon
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" slotted to 3" x 3"
Temp Range -45°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Durastar Medium Heavy Duty 30 Series - 6" x 2" Polyurethane on Glass-filled Nylon...
Shop Product
1000 lbs
TieredPricing
Durastar Medium Heavy Duty 30 Series - 5" x 2" Polyurethane on Glass-filled Nylon Rigid Caster - 1000 lb Capacity, 4 x 4-1/2 Top Plate | Choose Bearing Options Durastar
Ships in 1-3 Business Days
5" x 2" Polyurethane Rigid Caster – 1000 lb
Part # 30-R-520-MU-03
from $45.00
Volume pricing available
NylonPlate
Load rating
1000 lbs
Diameter 5"
Capacity 1000 lbs
Wheel Nylon
Mount Plate
Plate Size 4" x 4-1/2"
More Details Less Details
Width 2"
Height 6-1/2"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Temp Range -45°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Durastar Medium Heavy Duty 30 Series - 5" x 2" Polyurethane on Glass-filled Nylon...
Shop Product
800 lbs
TieredPricing
Durastar Medium Heavy Duty 30 Series - 4" x 2" Polyurethane on Glass-filled Nylon Rigid Caster - 800 lb Capacity, 4 x 4-1/2 Top Plate | Choose Bearing Options Durastar
Ships in 1-3 Business Days
4" x 2" Polyurethane Glass-Filled Nylon Rigid Caster – 800 lb
Part # 30-R-420-MU-03
from $40.00
Volume pricing available
NylonPlate
Load rating
800 lbs
Diameter 4"
Capacity 800 lbs
Wheel Nylon
Mount Plate
Plate Size 4" x 4-1/2"
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Temp Range -40°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Durastar Medium Heavy Duty 30 Series - 4" x 2" Polyurethane on Glass-filled Nylon...
Shop Product

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