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Polyolefin Caster Wheels 

Polyolefin Caster Wheels are injection molded from a blend of thermoplastic polymers forming a one piece solid sanitary design. These Polyolefin wheels, as with Nylon wheels, are especially suited for wet and corrosive applications. They are very resistant to most commonly encountered liquids. Polyolefin wheels have a lower capacity and a more limited temperature range than Nylon wheels with the exception of our Extra Heavy Duty Polyolefin wheels ( prefix RK ). In a cold dry environment, such as a refrigerated store room, Polyolefin wheels may become brittle. They should not be used in a freezer or a heat application above 180°F intermittent usage, such as a rack washer.

Our Extra Heavy Duty Polyolefin Caster Wheels ( prefix RK in the part number ) are reinforced with glass fiber to increase capacity and temperature range. These Extra Heavy Polyolefin wheels are comparable to Nylon wheels in load capacity. They are also especially suited for wet and corrosive applications. Extra Heavy Duty Polyolefin wheels are standard with Non-Stainless Precision Sealed Ball Bearings ( PS ) and Stainless Precision Sealed Ball Bearings ( SPS ).

Not recommended if the acid content exceeds 10% of your solution.

R = Roller Bearing, D = Delrin Bearings, P = Plain Bore, BB = Ball Bearings, PS = Precision Sealed Ball Bearings, SPS = Stainless Precision Sealed Ball Bearings

img Durometer: 65D ±5 for all Polyolefin Wheels.
img Standard Polyolefin Wheels: Temperature Range is 40°F to 180°F
img Extra Heavy Duty Polyolefin Wheels: Temperature Range is 0°F to 220°F

Wheels Chart (Click the Part Number to Order)

WHEEL DLAM. TREAD WIDTH Hub Length Capacity Lbs. Wheel Color Wheel ONLY Part Number Bearing I.D. / Type I.D. with Spanner Approx. Wt.
3″ 1 1/4″ 1 9/16″ 250 Black PB3X1.25P 3/8″ P NA 1/4
3″ 1 1/4″ 1 9/16″ 250 Black PB3X1.25B 3/8″ BB NA 1/4
3″ 1 1/4″ 1 9/16″ 250 White PW3X1.25D 1/2″ P 3/8″ 1/4
WHEEL DLAM. TREAD WIDTH Hub Length Capacity Lbs. Wheel Color Wheel ONLY Part Number Bearing I.D. / Type I.D. with Spanner Approx. Wt.
4″ 1 1/4″ 1 9/16″ 300 Black PB4X1.25P 3/8″ P NA 1/2
4″ 1 1/4″ 1 9/16″ 300 White PW4X1.25D 1/2″ P 3/8″ 1/2
4″ 2″ 2 7/16″ 500 Black PB4X2R 3/4″ R 1/2″ 1
4″ 2″ 2 7/16″ 500 Black PB4X2PS 1/2″ PS N/A 1
4″ 2″ 2 7/16″ 500 Black PB4X2D 3/4″ D 1/2″ 1
4″ 2″ 2 7/16″ 800 Black RK4X2PS 1/2″ PS N/A 2
4″ 2″ 2 7/16″ 800 Black RK4X2SPS 1/2″ SPS N/A 2
WHEEL DLAM. TREAD WIDTH Hub Length Capacity Lbs. Wheel Color Wheel ONLY Part Number Bearing I.D. / Type I.D. with Spanner Approx. Wt.
5″ 1 1/4″ 1 9/16″ 350 Black PB5X1.25P 3/8″ P N/A 3/4
5″ 1 1/4″ 1 9/16″ 350 Black PB5X1.25B 3/8″ BB N/A 3/4
5″ 1 1/4″ 1 9/16″ 350 White PW5X1.25D 1/2″ P 3/8″ 3/4
5″ 2″ 2 7/16″ 600 Black PB5X2R 3/4″ R 1/2″ 1 1/2
5″ 2″ 2 7/16″ 600 Black PB5X2PS 1/2″ PS N/A 1 1/2
5″ 2″ 2 7/16″ 600 Black PB5X2D 3/4″ D 1/2″ 1 1/2
5″ 2″ 2 7/16″ 1000 Black RK5X2PS 1/2″ PS N/A 2 1/2
5″ 2″ 2 7/16″ 1000 Black RK5X2SPS 1/2″ SPS N/A 2 1/2
WHEEL DLAM. TREAD WIDTH Hub Length Capacity Lbs. Wheel Color Wheel ONLY Part Number Bearing I.D. / Type I.D. with Spanner Approx. Wt.
6″ 2″ 2 7/16″ 700 Black PB6X2R 3/4″ R 1/2″ 2
6″ 2″ 2 7/16″ 700 Black PB6X2PS 1/2″ PS N/A 2
6″ 2″ 2 7/16″ 700 Black PB6X2D 3/4″ D 1/2″ 2
6″ 2″ 2 7/16″ 1200 Black RK6X2PS 1/2″ PS N/A 3
6″ 2″ 2 7/16″ 1200 Black RK6X2SPS 1/2″ SPS N/A 3
WHEEL DLAM. TREAD WIDTH Hub Length Capacity Lbs. Wheel Color Wheel ONLY Part Number Bearing I.D. / Type I.D. with Spanner Approx. Wt.
8″ 2″ 2 7/16″ 800 Black PB8X2R 3/4″ R 1/2″ 3
8″ 2″ 2 7/16″ 800 Black PB8X2PS 1/2″ PS N/A 3
8″ 2″ 2 7/16″ 800 Black PB8X2D 3/4″ D 1/2″ 3
8″ 2″ 2 7/16″ 1400 Black RK8X2PS 1/2″ PS N/A 4
8″ 2″ 2 7/16″ 1400 Black RK8X2SPS 1/2″ SPS N/A 4

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You should never select on the basis of load capacity alone. There is no industry standard for load capacity ratings and they may not include a factor for abuse. Our capacity ratings are below what the casters are capable of carrying because most applications have less than perfect conditions. Please refer to the information shown at the bottom of this page. If you have any doubt as to which wheel or caster is the BEST choice for your application contact us for a recommendation.