4" x 1-1/4" Poly-Pro Threaded Stem Swivel Caster, Expandable Adapter - 350 lbs. Cap.
4" x 1-1/4" Poly-Pro Threaded Stem Swivel Caster, Expandable Adapter - 350 lbs. Cap.
Product Overview
The Poly-Pro wheel is one of our caster staples, providing plenty of durability with a firm tread. The polyurethane tread protects surfaces, and the annular bearings roll very smoothly. These wheels work best for indoor applications; for outdoor use, please take a look at our Polymadic wheel casters with UV-resistant materials.
Tread: Polyurethane, Non-Marking, Mechanically Locked To Core This replacement caster component is listed with wheel diameter 4", tread width 1-1/4", load capacity 350 Lbs., tread type Polyurethane, Non-Marking, Mechanically Locked To Core, and bearing type Precision Ball Bearing With Guards.
Key Features
- Load Capacity: 350 Lbs.
- Wheel Diameter: 4"
- Tread Width: 1-1/4"
- Tread: Polyurethane, Non-Marking, Mechanically Locked To Core
- Bearing: Precision Ball Bearing With Guards
- Temperature Range: -20°F to 180°F
Ideal For
Choose this product if you need:
- A replacement caster component matching the listed mounting and hardware dimensions
- Loads within the listed 350 Lbs rating
- Applications matching the listed 4" x 1-1/4" wheel dimensions
- Applications needing the listed Polyurethane, Non-Marking, Mechanically Locked To Core wheel or tread
Not Ideal For
Not ideal when a complete caster with wheel is required, the load exceeds 350 Lbs, the equipment requires a wheel other than 4" diameter by 1-1/4" tread width, or the operating temperature is outside -20°F to 180°F.
Product Details
Review the product details below to confirm the wheel diameter, tread width, load capacity, wheel or tread material, bearing, overall height, and temperature range match the replacement component required for your equipment.
Shared Product Details
| Brand | Durable Superior Casters |
| Load Capacity | 350 Lbs. |
| Wheel Diameter | 4" |
| Tread Width | 1-1/4" |
| Tread Type | Polyurethane, Non-Marking, Mechanically Locked To Core |
| Core Type | Polyolefin Core |
| Bearing Type | Precision Ball Bearing With Guards |
| Wheel Color | Black on Gray |
| Overall Height | 5" |
| Swivel Radius | 3-7/16" |
| Adapter Sizes | - 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") |
| Durometer | Shore D 60 (+/-5) |
| Temperature Range | -20°F to 180°F |
| Model / MPN | 21PP40GA4477YY |
Frequently Asked Questions
What is this product used for?
Use it when you need a replacement caster component matching the listed mounting and hardware dimensions.
What should I check before ordering?
Confirm the wheel diameter, tread width, load capacity, and bearing or bore shown in Product Details against the equipment being fitted.
What temperature range is listed?
The original product data lists a temperature range of -20°F to 180°F.