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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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3" x 1-1/4" Polyolefin Casters · 250-325 lb

Diameter: 3, 4, 5 inTread: 1-1/4 inCapacity: up to 325 lb
3" x 1-1/4" Polyolefin Casters for light institutional and furniture-grade frames. Catalog chips cover wheel diameters 3, 4, 5 in, polyolefin treads, and plate-mount frames. Replace worn corners in matched sets when possible so the cart tracks straight under load. For dual-wheel or wide treads, check fork clearance and swivel radius in tight aisles. These light-duty options cover everyday light institutional and furniture-grade frames without jumping to extreme forged series.

Shop by type

3 types

Wheel = wheel diameter · capacity is per caster.

250 lbs
TieredPricing
Durastar 3" x 1-1/4" Polyolefin Rigid Caster - 250 lb Capacity, Choose Top Plate Option Durastar
Ships in 1-3 Business Days
3" x 1-1/4" Polyolefin Rigid Caster – 250 lb
Part # 21-R-314-PO-82
from $20.00
Volume pricing available
PolyolefinPlate
Load rating
250 lbs
Diameter 3"
Capacity 250 lbs
Wheel Polyolefin
Mount Plate
More Details Less Details
Width 1-1/4"
Height 4-3/16"
Temp Range 40°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Durastar 3" x 1-1/4" Polyolefin Rigid Caster - 250 lb Capacity Product Overview The...
Shop Product
325 lbs
TieredPricing
Durastar 5" x 1-1/4" Polyolefin Swivel Caster - 325 lb Capacity, Choose Top Plate Option Durastar
Ships in 1-3 Business Days
5" x 1-1/4" Polyolefin Swivel Caster – 325 lb
Part # 21-S-514-PO-82
from $27.00
Volume pricing available
PolyolefinPlate
Load rating
325 lbs
Diameter 5"
Capacity 325 lbs
Wheel Polyolefin
Mount Plate
More Details Less Details
Width 1-1/4"
Height 6-1/4"
Temp Range -45°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Durastar 5" x 1-1/4" Polyolefin Swivel Caster - 325 lb Capacity Product Overview The...
Shop Product
300 lbs
TieredPricing
Durastar 4" x 1-1/4" Polyolefin Swivel Caster - 300 lb Capacity, Choose Top Plate Option Durastar
Ships in 1-3 Business Days
4" x 1-1/4" Polyolefin Swivel Caster – 300 lb · Model 21-S-414-PO-82
Part # 21-S-414-PO-82
from $25.00
Volume pricing available
PolyolefinPlate
Load rating
300 lbs
Diameter 4"
Capacity 300 lbs
Wheel Polyolefin
Mount Plate
More Details Less Details
Width 1-1/4"
Height 5-1/8"
Temp Range -45°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Durastar 4" x 1-1/4" Polyolefin Swivel Caster - 300 lb Capacity Product Overview The...
Shop Product
250 lbs
TieredPricing
Durastar 3" x 1-1/4" Polyolefin Swivel Caster - 250 lb Capacity, Choose Top Plate Option Durastar
Ships in 1-3 Business Days
3" x 1-1/4" Polyolefin Swivel Caster Top Plate – 250 lb · Model 21-S-314-PO-82
Part # 21-S-314-PO-82
from $21.00
Volume pricing available
PolyolefinPlate
Load rating
250 lbs
Diameter 3"
Capacity 250 lbs
Wheel Polyolefin
Mount Plate
More Details Less Details
Width 1-1/4"
Height 4-3/16"
Temp Range 40°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Durastar 3" x 1-1/4" Polyolefin Swivel Caster - 250 lb Capacity Product Overview The...
Shop Product
325 lbs
TieredPricing
Durastar 5" x 1-1/4" Polyolefin Rigid Caster - 325 lb Capacity, Choose Top Plate Option Durastar
Ships in 1-3 Business Days
5" x 1-1/4" Polyolefin Rigid Caster – 325 lb · Model 21-R-514-PO-82
Part # 21-R-514-PO-82
from $25.00
Volume pricing available
PolyolefinPlate
Load rating
325 lbs
Diameter 5"
Capacity 325 lbs
Wheel Polyolefin
Mount Plate
More Details Less Details
Width 1-1/4"
Height 6-1/4"
Temp Range -45°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Durastar 5" x 1-1/4" Polyolefin Rigid Caster - 325 lb Capacity Product Overview The...
Shop Product
300 lbs
TieredPricing
Durastar 4" x 1-1/4" Polyolefin Rigid Caster - 300 lb Capacity, Choose Top Plate Option Durastar
Ships in 1-3 Business Days
4" x 1-1/4" Polyolefin Rigid Caster – 300 lb · Model 21-R-414-PO-82
Part # 21-R-414-PO-82
from $23.00
Volume pricing available
PolyolefinPlate
Load rating
300 lbs
Diameter 4"
Capacity 300 lbs
Wheel Polyolefin
Mount Plate
More Details Less Details
Width 1-1/4"
Height 5-1/8"
Temp Range -45°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Durastar 4" x 1-1/4" Polyolefin Rigid Caster - 300 lb Capacity Product Overview The...
Shop Product

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