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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
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Phenolic Casters · 800–1,400 lb · 4-1/2" x 6-1/4" Plate

Diameter: 4 to 8 inTread: 2 inPlate: 4-1/2 x 6-1/4 inCapacity: 800 to 1,400 lb per caster
This page lists phenolic casters on a 4-1/2 x 6-1/4 in plate. Phenolic is the most common tread here, rated 800 to 1,400 lb per caster in 4, 5, 6 and 8 in.
1200 lbs
TieredPricing
6 Inch x 2 Inch Phenolic Swivel Caster - 1200 lbs Capacity | Heavy Duty Plate Mount CasterHQ
In Stock · Same/Next Day
6" x 2" Phenolic Swivel Caster – 1200 lb
Part # HQ2060S-PL3-PHR
from $33.00
Volume pricing available
PhenolicPlate
Load rating
1200 lbs
Size6" x 2"
Capacity1200 lbs
WheelPhenolic
MountPlate 4-1/2" x 6-1/4"
TypeSwivel
More Details Less Details
Width 2"
Height 7-1/2"
Bolt Pattern 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"
Temp Range -50°F to 250°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
6" x 2" Phenolic Wheel | Swivel Caster | Plate Size: 4-1/2 x 6-1/4"...
Shop Product
800 lbs
TieredPricing
4" x 2" Phenolic Wheel | Swivel Caster | Plate Size: 4-1/2 x 6-1/4" | Capacity: 800lbs CasterHQ
In Stock · Same/Next Day
4" x 2" Phenolic Swivel Caster 4-1/2" x 6-1/4" Plate – 800 lb
Part # HQ2040S-PL3-PHR
from $29.00
Volume pricing available
PhenolicPlate
Load rating
800 lbs
Size4" x 2"
Capacity800 lbs
WheelPhenolic
MountPlate 4-1/2" x 6-1/4"
TypeSwivel
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"
Temp Range -50°F to 250°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
4" x 2" Phenolic Wheel | Swivel Caster | Plate Size: 4-1/2 x 6-1/4"...
Shop Product
1400 lbs
TieredPricing
8" x 2" Phenolic Wheel | Swivel Caster | Plate Size: 4-1/2 x 6-1/4" | Capacity: 1,400 lbs CasterHQ
In Stock · Same/Next Day
8" x 2" Phenolic Swivel Caster – 1,400 lb
Part # HQ2080S-PL3-PHR
from $38.00
Volume pricing available
PhenolicPlate
Load rating
1400 lbs
Size8" x 2"
Capacity1400 lbs
WheelPhenolic
MountPlate 4-1/2" x 6-1/4"
TypeSwivel
More Details Less Details
Width 2"
Height 9-1/2"
Bolt Pattern 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"
Temp Range -50°F to 250°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
8" x 2" Phenolic Wheel | Swivel Caster | Plate Size: 4-1/2 x 6-1/4"...
Shop Product
1000 lbs
TieredPricing
5" x 2" Phenolic Swivel Caster – 1,000 lb | Top Plate 4-1/2" x 6-1/4" | CasterHQ
In Stock · Same/Next Day
5" x 2" Phenolic Swivel Caster – 1,000 lb
Part # HQ2050S-PL3-PHR
from $31.00
Volume pricing available
PhenolicPlate
Load rating
1000 lbs
Size5" x 2"
Capacity1000 lbs
WheelPhenolic
MountPlate 4-1/2" x 6-1/4"
TypeSwivel
More Details Less Details
Width 2"
Height 6-1/2"
Bolt Pattern 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"
Temp Range -50°F to 250°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
5" x 2" Phenolic Wheel | Swivel Caster | Plate Size: 4-1/2 x 6-1/4"...
Shop Product
1200 lbs
TieredPricing
6" x 2" Phenolic Wheel | Rigid Caster | Plate Size: 4-1/2 x 6-1/4" | Capacity: 1,200 lbs CasterHQ
In Stock · Same/Next Day
6" x 2" Phenolic Rigid Caster – 1,200 lb
Part # HQ2060R-PL3-PHR
from $26.00
Volume pricing available
PhenolicPlate
Load rating
1200 lbs
Size6" x 2"
Capacity1200 lbs
WheelPhenolic
MountPlate 4-1/2" x 6-1/4"
TypeRigid
More Details Less Details
Width 2"
Height 7-1/2"
Bolt Pattern 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"
Temp Range -50°F to 250°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
6" x 2" Phenolic Wheel | Rigid Caster | Plate Size: 4-1/2 x 6-1/4"...
Shop Product
1000 lbs
TieredPricing
5" x 2" Phenolic Rigid Caster – 1,000 lb | 4-1/2" x 6-1/4" Plate | CasterHQ
In Stock · Same/Next Day
5" x 2" Phenolic Rigid Caster – 1,000 lb
Part # HQ2050R-PL3-PHR
from $25.00
Volume pricing available
PhenolicPlate
Load rating
1000 lbs
Size5" x 2"
Capacity1000 lbs
WheelPhenolic
MountPlate 4-1/2" x 6-1/4"
TypeRigid
More Details Less Details
Width 2"
Height 6-1/2"
Bolt Pattern 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"
Temp Range -50°F to 250°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
5" x 2" Phenolic Wheel | Rigid Caster | Plate Size: 4-1/2 x 6-1/4"...
Shop Product
800 lbs
TieredPricing
4" x 2" Phenolic Wheel | Rigid Caster | Plate Size: 4-1/2 x 6-1/4" | Capacity: 800lbs CasterHQ
In Stock · Same/Next Day
4" x 2" Phenolic Rigid Caster – 800 lb
Part # HQ2040R-PL3-PHR
from $23.00
Volume pricing available
PhenolicPlate
Load rating
800 lbs
Size4" x 2"
Capacity800 lbs
WheelPhenolic
MountPlate 4-1/2" x 6-1/4"
TypeRigid
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"
Temp Range -50°F to 250°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
4" x 2" Phenolic Wheel | Rigid Caster | Plate Size: 4-1/2 x 6-1/4"...
Shop Product
1400 lbs
TieredPricing
8" x 2" Phenolic Wheel | Rigid Caster | Plate Size: 4-1/2 x 6-1/4" | Capacity: 1,400 lbs CasterHQ
In Stock · Same/Next Day
8" x 2" Phenolic Rigid Caster – 1,400 lb
Part # HQ2080R-PL3-PHR
from $32.00
Volume pricing available
PhenolicPlate
Load rating
1400 lbs
Size8" x 2"
Capacity1400 lbs
WheelPhenolic
MountPlate 4-1/2" x 6-1/4"
TypeRigid
More Details Less Details
Width 2"
Height 9-1/2"
Bolt Pattern 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"
Temp Range -50°F to 250°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
8" x 2" Phenolic Wheel | Rigid Caster | Plate Size: 4-1/2 x 6-1/4"...
Shop Product

Phenolic casters on a 4-1/2 x 6-1/4 in plate by tread

Tread Core Wheel sizes Rated per caster Listed temperature Where it fits
Phenolic 4, 5, 6 and 8 in 800 to 1,400 lb -50°F to 250°F hard and easy rolling on smooth, dry floors

Ratings are for single casters of phenolic casters on a 4-1/2 x 6-1/4 in plate, from product fields [S1].

Wheel sizes

Wheel Treads Rated
4 x 2 in phenolic 800 lb
5 x 2 in phenolic 1,000 lb
6 x 2 in phenolic 1,200 lb
8 x 2 in phenolic 1,400 lb

Choosing phenolic casters on a 4-1/2 x 6-1/4 in plate

  1. Load: divide the loaded weight by three for a four-caster cart [S2]. A 1,400 lb caster from this page then suits about 4,200 lb, and the strongest at 1,400 lb about 4,200 lb.
  2. Mount: most phenolic casters on a 4-1/2 x 6-1/4 in plate use a 4-1/2 x 6-1/4 in top plate; measure bolt hole centers on the old plate and compare.
  3. Floor: on phenolic casters on a 4-1/2 x 6-1/4 in plate, phenolic suits smooth concrete and heavy loads, but is loud and hard on tile and wood.
  4. Rig: swivel and rigid phenolic casters on a 4-1/2 x 6-1/4 in plate are listed.

Phenolic casters on a 4-1/2 x 6-1/4 in plate questions

How much weight can phenolic casters on a 4-1/2 x 6-1/4 in plate carry?

Single phenolic casters on a 4-1/2 x 6-1/4 in plate are rated 800 to 1,400 lb; most fall between 1,000 and 1,400 lb.

What top plate do phenolic casters on a 4-1/2 x 6-1/4 in plate use?

Most phenolic casters on a 4-1/2 x 6-1/4 in plate use 4-1/2 x 6-1/4 in.

What wheel material is most common on phenolic casters on a 4-1/2 x 6-1/4 in plate?

Phenolic leads on phenolic casters on a 4-1/2 x 6-1/4 in plate, rated 800 to 1,400 lb per caster.

Jordan Wilson, CasterHQ · reviewed October 20, 2026 · 844-439-4335 · info@casterhq.com

Sources

  • [S1] CasterHQ product fields (rated load, diameter, width, wheel and core material, temperature range, mount) and product descriptions for the items on this page, pulled October 20, 2026.
  • [S2] Preferred Equipment casters and wheels quick guide PDF (prefeq.com): load sizing on one less caster, wheel types and floor notes.

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