Overview
The 21.514.20.APB is a 5-inch light duty rigid caster featuring a polyurethane wheel and ball bearing. This caster is designed for applications requiring reliable directional stability and smooth rolling performance. As a rigid (non-swivel) caster, it is typically paired with swivel casters to provide both maneuverability and straight-line tracking for carts and equipment. The polyurethane wheel offers excellent floor protection and is suitable for a variety of light duty industrial and commercial uses.
Benefits
- Heavy-duty construction ensures durability and long service life.
- Polyurethane wheels provide superior floor protection, low rolling resistance, high dynamic load capacity, and high tear resistance.
- Ball bearings are sealed and pre-lubricated, offering better ergonomics and reduced maintenance.
- Ideal for environments where quiet operation and minimal floor marking are important.
- Suitable for use on smooth or slightly uneven floors, and helps prevent damage compared to harder wheel materials.
For more information on polyurethane wheels, visit:
Polyurethane Caster Wheels
5 Reasons to Get Polyurethane Wheels on Your Casters
| SKU | 21.514.20.APB | ||
|---|---|---|---|
| Wheel Diameter | 5 Inches | Weight Capacity | 300 Lbs |
| Wheel Width | 1-1/4 Inches | Tread Style | Radius Tread |
| Overall Height | 6-3/16 Inches | Wheel Material | Polyurethane |
| Core Material | Aluminium | Bearing Type | Ball Bearing |
| Caster Type | Rigid | Mounting Type | Top Plate |
| Top Plate | 2-1/2 Inches x 3-5/8 Inches | Top Plate Holes | 1-3/4 Inches x 2-3/4 Inches – 2-7/8 Inches |
Applications
- Commonly used on carts, platform trucks, and job boxes in light duty industrial, warehousing, and commercial settings.
- Well-suited for environments where floor protection and quiet operation are priorities, such as bakeries, woodworking facilities, and manufacturing plants.
- Can be paired with swivel casters for optimal mobility and directional control.
Selection Assistance
- When selecting casters, always calculate based on dynamic load capacity to ensure proper performance while in motion.
- For smooth floors, polyurethane wheels are preferable to steel wheels, which can damage surfaces.
- If your environment contains significant debris or metal shavings, consider a caster with a lower durometer (softer) wheel material for better debris purging.
- Our team of caster experts is available to help you choose the best caster for your specific application, improving ergonomics and saving costs.




