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Over 50 years in the industry, demonstrating reliability.
Serving customers across all 50 states.
Products designed for heavy-duty use.
30 Days Return Policy*
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Product Overview
This Poly-Pro swivel caster combines a 4-inch non-marking polyurethane wheel with a polyolefin core, guarded precision ball bearings, and a top lock brake. The polyurethane tread is mechanically locked to the core and provides a firm, smooth-rolling surface for indoor carts and equipment.
The caster is rated for loads up to 350 lbs and has a 5-1/8-inch overall height with a 3-13/32-inch swivel radius. It uses a 4-inch by 4-1/2-inch mounting plate with a bolt-hole pattern ranging from 2-5/8 inches by 3-5/8 inches to 3 inches by 3 inches. For outdoor applications with prolonged UV exposure, consider a Polymadic wheel caster made with UV-resistant materials.
Key Features
- 350 lb load capacity
- 4-inch wheel diameter
- 1-1/4-inch tread width
- Non-marking polyurethane tread
- Guarded precision ball bearings
- Top lock brake
Ideal For
Choose this product if you need:
- An indoor swivel caster with a non-marking polyurethane tread
- A 4-inch by 4-1/2-inch mounting plate
- Smooth rolling from guarded precision ball bearings
- A top lock brake to help hold equipment in place
Not Ideal For
Not ideal for outdoor applications with prolonged UV exposure, loads above 350 lbs per caster, equipment requiring a different wheel size, or mounting layouts that do not match the listed 4-inch by 4-1/2-inch plate and bolt-hole pattern.
Product Details
Review the product details below to confirm the wheel size, load capacity, overall height, mounting plate, bolt-hole pattern, bearing type, and brake style match your equipment.
Shared Product Details
| Brand | Durable Superior Casters |
| Model / MPN | 75PP40GA4417TY |
| Caster Type | Swivel plate caster |
| Load Capacity | 350 lbs |
| Wheel Diameter | 4" |
| Tread Width | 1-1/4" |
| Tread Type | Non-marking polyurethane, mechanically locked to core |
| Core Type | Polyolefin core |
| Bearing Type | Precision ball bearing with guards |
| Overall Height | 5-1/8" |
| Swivel Radius | 3-13/32" |
| Plate Size | 4" x 4-1/2" |
| Bolt-Hole Pattern | 2-5/8" x 3-5/8" to 3" x 3" |
| Bolt-Hole Diameter | 3/8" |
| Brake Type | Top lock brake |
| Wheel Color | Black on gray |
| Durometer | Shore D 60 (+/-5) |
Frequently Asked Questions
What is this caster used for?
It is intended for indoor carts and equipment requiring a 4-inch non-marking polyurethane swivel caster with a 350 lb capacity and top lock brake.
What mounting pattern does it use?
It uses a 4-inch by 4-1/2-inch plate with a bolt-hole pattern ranging from 2-5/8 inches by 3-5/8 inches to 3 inches by 3 inches. The bolt holes are 3/8 inch in diameter.
Is this caster recommended outdoors?
This Poly-Pro wheel is best suited to indoor applications. For prolonged outdoor UV exposure, consider a Polymadic wheel caster made with UV-resistant materials.
Return Policy
You can return unused or defective products up to 30 days from the date of order. Some product returns may be subject to restocking fees. Proof of Purchase will be required if we cannot verify your order information. Unless the product is defective or damaged in transit, the customer is responsible for return shipment costs.
Defective or Damaged Products
All shipments received must be immediately inspected for damage. If your order shipped on a freight carrier, any damage needs to be noted on the Freight Receipt before signing for the delivery. An exchange or refund will be provided at no additional cost. If damage is due to misuse or regular wear of the product, the return will be denied.
Order Cancellation
If you need to cancel your order for any reason, please contact us immediately. If the order is canceled prior to shipping, you will be refunded in full. Certain products that are manufactured to order cannot be canceled after the manufacturing process has started.