Caster Wheel Selection Guide
| Wheel Type | Abbreviation | Load Capacity to lbs (Kgs) | Durometer | Temperature Range | Abrasion Resistance | Impact Resistance | Floor Protection | Noise Reduction | Moisture Reduction |
| Hard Rubber | HR | 600 (270) | 95A | T -40° to 158° F | Medium | Medium | Fair | Poor | Low |
| Polyolefin | PB/PW | 800 (360) | 95A | T -20 to 230° F | Medium | Medium | Fair | Poor | Very High |
| Full-Pneumatic | PN | 675 (307) | 55A | T -40 to 158° F | Medium | Low | Very Good | Very Good | Medium |
| Santoprene* | SP | 700 (315) | 75A | T -40° to 230° F | High | Medium | Very Good | Very Good | High |
| Polyurethane Severe Duty | PS | 4800 (2160) | 95A | T -45° to 180°F | High | High | Very Good | Good | Medium |
| Semi-Pneumatic Wheels | SN | 600 (273) | 75A | T 0° to 100° F | Low | Low | Good | Good | Medium |
| Reinforced Thermoplastic | RT | 1400 (630) | 65D | T -20° to 250° F | Medium | High | Fair | Poor | Very High |
| Mold-On Rubber | MR | 3020 (1359) | 70A | T -30° to 160° F | Low | Low | Good | Good | low |
| Polyurethane Aluminum Core | PA | 1500 (675) | 95A | T -40° to 160° F | High | High | Good | Fair | Medium |
| Soft Rubber | SR | 300 (135) | 70A | T -40° to 158° F | Low | Low | Good | Good | low |
| Polyurethane Iron Core | PI | 9000 (4050) | 95A | T -45° to 180° F | High | Medium | Good | Fair | Medium |
| Phenolic Resin | PH | 8000 (3600) | T -45° to 250° F | Medium | Medium | Fair | Poor | Low | |
| Heavy Duty Ductile Iron | HD | 10000 (450) | T -45° to 800° F | Very High | Very High | Poor | Poor | High | |
| Cast Iron | SS | 3500 (1575) | T -45° to 800° F | High | Medium | Poor | Poor | High | |
| Grey Iron | Gl | 4000 (1800) | T -45° to 800° F | Very High | Very High | Poor | Poor | High | |
| Polyurethane on Polyolefin | PP | 1000 (450) | 90A | T -45° to 180° F | High | Medium | Good | Good | Medium |
| Forged Steel | FS | 15000 (6750) | T -45° to 800° F | Very High | Very High | Poor | Poor | High | |
| Solid Urethane | K1 | 1500 (675) | 55D | T -50° to 180° F | High | High | Very Good | Fair | Very High |
| Advanced Elastomer | AE | 1200 (545) | 68D | T -50° to 212° F | Very High | Very High | Very Good | Good | Very High |
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