4" x 1-1/4" Polymadic Thread Stem Caster, Expandable Adapter, Brake, 350 lbs. Capacity
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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
The polymadic wheel provides plenty of durability with a firm tread. The polyurethane tread protects surfaces, and the annular bearings roll very smoothly. These wheels work well for most hard-floor applications due to the high-performance UV-resistant materials used.
Tread: High-Performance UV-Resistant Polyurethane, Non-Marking, Mechanically Locked To Core
Key Features
- Wheel Diameter: 4".
- Tread Width: 1-1/4".
- Bearing Type: Annular Ball Bearing.
- Lock Type: Top Lock Brake.
- Load Capacity: 350 Lbs..
Ideal For
Choose this product if you need:
- Carts, racks, or equipment that match the mounting and wheel specifications shown below
- A replacement caster with the listed wheel diameter, tread width, and mounting style
- Equipment that needs a brake or lock style matching this product
Not Ideal For
Consider a different caster if you need a different wheel diameter, tread width, capacity, mounting style, brake style, or wheel material than the specifications shown.
Product Details
| Brand | Durable Superior Casters |
| Load Capacity | 350 Lbs. |
| Wheel Diameter | 4" |
| Tread Width | 1-1/4" |
| Tread Type | High-Performance UV-Resistant Polyurethane, Non-Marking, Mechanically Locked To Core |
| Core Type | Polyolefin |
| Bearing Type | Annular Ball Bearing |
| Wheel Color | Maroon/Gray |
| Overall Height | 5" |
| Swivel Radius | 3-7/16" |
| Adapter Size | - 3/4" Tube Inner Diameter (0.720" - 0.851") - 7/8" Tube Inner Diameter (0.852" - 0.927") - 1" Tube Inner Diameter (0.928" - 1.029") - 1-1/8" Tube Inner Diameter (1.030" - 1.140") - 1-3/8" Tube Inner Diameter (1.360" - 1.425") - 1-1/2" Tube Inner Diameter (1.426" - 1.589") - 1-7/8" Tube Inner Diameter (1.790" - 1.850") |
| Lock Type | Top Lock Brake |
| Durometer | Shore D 60 (+/-5) |
| Temperature Range | -20° F to 180° F |
| Part Number | 21PM40GM4377TY |
Frequently Asked Questions
What is this swivel caster used for?
Use this swivel caster for carts, racks, or equipment that match the mounting and wheel specifications shown below. It may also fit a replacement caster with the listed wheel diameter, tread width, and mounting style, equipment that needs a brake or lock style matching this product. Always compare the application with the product details shown above.
What should I check before ordering?
Confirm the wheel diameter, tread width, capacity, mounting style, overall height, and brake or lock details shown in the Product Details table.
Does this product include a brake or lock?
Review the brake or lock information in the Product Details table to confirm the exact style included with this product.
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.