6" Wheels - UltraGlide 24/7 (Dual Size)

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Each Hamilton product is custom manufactured for your order (lead time is shown on each product page). Please confirm all specs before checkout, since made-to-order items aren't eligible for returns, exchanges or refunds. Need help? Call 844-439-4335 or email info@casterhq.com and we'll verify fit for you.

Diameter: 6 inTread: 4 and 5 inPlate: 8-1/2 x 8-1/2 in (most)Capacity: 5,800 to 7,700 lb per caster

Hamilton UltraGlide 6 in dual wheels in polyurethane. Polyurethane on aluminum cores is the most common tread on these Hamilton UltraGlide 6 in dual wheels, rated 5,800 to 7,700 lb per caster. Brands: Hamilton.

7700 lbs

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Hamilton Maxi-Duty Dual-Wheel Swivel Caster with 6" x 5" UltraGlide(95A) Five-Wheel Grey Tread on Aluminum Core with 1 1/4" Sealed Precision Ball Bearings Hamilton

Made to Order · 4-6 Wk

Hamilton S-MDD-65SWC95 6" x 5" UltraGlide Swivel Dual Wheel Caster

Part # S-MDD-65SWC95

$2,459.00

Volume pricing available

PolyurethanePlate

Load rating

7700 lbs

Size6" x 5"

Capacity7700 lbs

WheelPolyurethane

MountPlate 8-1/2" x 8-1/2"

TypeSwivel

More Details Less Details

Width 5"

Height 10"

Bolt Pattern 7" x 7"

Core Aluminum

Temp Range -50°F to 200°F

Rig Type Swivel

Brake No Brake

Frame Platinum Powder

Hamilton Maxi-Duty Dual-Wheel Swivel Caster with 6" x 5" UltraGlide(95A) Five-Wheel Grey Tread on...

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5800 lbs

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6" x 4" wheel Hamilton Maxi-Duty Dual-Wheel Swivel Caster with 6" x 4" UltraGlide(95A) Quad-Wheel Grey Tread on Aluminum Core with 1 1/4" Sealed Precision Ball Bearings Hamilton

Made to Order · 4-6 Wk

Hamilton 6" x 4" UltraGlide Swivel Dual Wheel Caster – 5800 lb

Part # S-MDD-64SWC95

$1,981.00

Volume pricing available

PolyurethanePlate

Load rating

5800 lbs

Size6" x 4"

Capacity5800 lbs

WheelPolyurethane

MountPlate 8-1/2" x 8-1/2"

TypeSwivel

More Details Less Details

Width 4"

Height 10"

Bolt Pattern 7" x 7"

Core Aluminum

Temp Range -50°F to 200°F

Rig Type Swivel

Brake No Brake

Frame Platinum Powder

6" x 4" wheel Hamilton Maxi-Duty Dual-Wheel Swivel Caster with 6" x 4" UltraGlide...

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7700 lbs

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Hamilton Maxi-Duty Dual-Wheel Rigid Caster with 6" x 5" UltraGlide(95A) Five-Wheel Grey Tread on Aluminum Core with 1 1/4" Sealed Precision Ball Bearings Hamilton

Made to Order · 4-6 Wk

Hamilton MDD-65SWC95 6" x 5" UltraGlide Dual Wheel Rigid Caster – 7700 lb

Part # R-MDD-65SWC95

$1,811.00

Volume pricing available

PolyurethanePlate

Load rating

7700 lbs

Size6" x 5"

Capacity7700 lbs

WheelPolyurethane

MountPlate 8-1/2" x 10-1/2"

TypeRigid

More Details Less Details

Width 5"

Height 10"

Core Aluminum

Temp Range -50°F to 200°F

Rig Type Rigid

Brake No Brake

Frame Platinum Powder

Hamilton Maxi-Duty Dual-Wheel Rigid Caster with 6" x 5" UltraGlide(95A) Five-Wheel Grey Tread on...

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5800 lbs

TieredPricing

6" x 4" wheel Hamilton Maxi-Duty Dual-Wheel Rigid Caster with 6" x 4" UltraGlide(95A) Quad-Wheel Grey Tread on Aluminum Core with 1 1/4" Sealed Precision Ball Bearings Hamilton

Made to Order · 4-6 Wk

Hamilton 6" x 4" UltraGlide Dual Wheel Rigid Caster – 5800 lb · Model R-MDD-64SWC95

Part # R-MDD-64SWC95

$1,530.00

Volume pricing available

PolyurethanePlate

Load rating

5800 lbs

Size6" x 4"

Capacity5800 lbs

WheelPolyurethane

MountPlate 8-1/2" x 8-1/2"

TypeRigid

More Details Less Details

Width 4"

Height 10"

Core Aluminum

Temp Range -50°F to 200°F

Rig Type Rigid

Brake No Brake

Frame Platinum Powder

6" x 4" wheel Hamilton Maxi-Duty Dual-Wheel Rigid Caster with 6" x 4" UltraGlide...

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Hamilton UltraGlide 6 in dual wheels by tread

Tread	Core	Wheel sizes	Rated per caster	Listed temperature	Where it fits
Polyurethane	Aluminum	6 in	5,800 to 7,700 lb	-50°F to 200°F	quiet, floor-friendly and long wearing

Ratings are for single casters of Hamilton UltraGlide 6 in dual wheels, from product fields [S1].

Wheel sizes

Wheel	Treads	Rated
6 x 4 in	polyurethane	5,800 lb
6 x 5 in	polyurethane	7,700 lb

Choosing Hamilton UltraGlide 6 in dual wheels

Load: divide the loaded weight by three for a four-caster cart [S2]; at 7,700 lb each, Hamilton UltraGlide 6 in dual wheels suit a loaded cart of about 23,100 lb.
Mount: most Hamilton UltraGlide 6 in dual wheels use a 8-1/2 x 8-1/2 in top plate; 8-1/2 x 10-1/2 in plates are listed too; check the bolt spacing on your frame against the plate size.
Floor: on Hamilton UltraGlide 6 in dual wheels, polyurethane protects finished floors and runs quietly; check the rating if the cart also crosses rough concrete.
Rig: swivel and rigid Hamilton UltraGlide 6 in dual wheels are listed.

Related to Hamilton UltraGlide 6 in dual wheels: caster wheels.

Hamilton UltraGlide 6 in dual wheels questions

How much weight can Hamilton UltraGlide 6 in dual wheels carry?

Single Hamilton UltraGlide 6 in dual wheels are rated 5,800 to 7,700 lb.

What top plate do Hamilton UltraGlide 6 in dual wheels use?

Most Hamilton UltraGlide 6 in dual wheels use 8-1/2 x 8-1/2 in. Other plates on Hamilton UltraGlide 6 in dual wheels: 8-1/2 x 10-1/2 in.

What wheel material is most common on Hamilton UltraGlide 6 in dual wheels?

Polyurethane leads on Hamilton UltraGlide 6 in dual wheels, rated 5,800 to 7,700 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.

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: 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"

(3″ Wide Casters), Industry-Standard

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"

View All • 21 Plate Sizes

Plate Casters

Stem Casters

Stainless Casters

Ergonomic Casters

Leveling Casters

6" Wheels - UltraGlide 24/7 (Dual Size)

Hamilton UltraGlide 6 in dual wheels by tread

Wheel sizes

Choosing Hamilton UltraGlide 6 in dual wheels

Hamilton UltraGlide 6 in dual wheels questions

Sources