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The 3" Rigid/Swivel/with Brake Single Bearing TPR Caster Wheel is a medium-duty solution built for shock absorption and floor protection. With a thermoplastic rubber (TPR) tread and 80-125KGS load capacity, these casters protect delicate equipment—lab glassware, retail electronics, or medical devices—from vibrations during transport. The single bearing design keeps them lightweight, while the grey TPR finish complements most equipment. Ideal for libraries, hospitals, and workshops, they balance quiet operation with traction on slippery floors.
Wheel Tread: TPR rubber with a PP core—absorbs vibrations, protecting delicate items like lab reagents or retail cameras.
Single Bearing System: Lightweight and maneuverable, perfect for tight spaces (library aisles, hospital corridors) while supporting 80-125KGS.
Brake Mechanism: Sturdy brake locks the wheel, preventing movement during equipment use (e.g., workbench tasks).
Wheel Specs: 3" (75mm) diameter, 32mm tread width, 80-85 Shore A hardness—softer than PP for better shock absorption.
Color & Code: Grey TPR (codes: 332-1G, 331-2G)—low-profile finish hides scuffs, suitable for visible equipment.
Mounting: 96*66mm plate with 8.5mm holes—fits standard carts, installs with basic tools.
Superior Shock Absorption: TPR tread reduces vibrations, protecting delicate equipment from damage during transport.
Floor Protection: Soft TPR won’t scratch wood, tile, or vinyl—ideal for offices, libraries, or high-end retail stores.
Temperature Resistance: Maintains flexibility from -15°C to 60°C, suitable for cold storage or warm workshops.
Quiet Operation: TPR’s soft texture minimizes rolling noise, creating a calm environment for hospitals or classrooms.
High Traction: TPR grips slippery floors (wet tile, polished concrete), ensuring stable movement in busy areas.
| Wheel Tread |  | Wheel Tread | |
| Color : Grey | Color : Grey | ||
| Hardness: 80-85 Shore A | Hardness: 80-85 Shore A | ||
| Wheel core : PP | Wheel core : PP | ||
| Wheel tread : PP | Wheel tread : PP | ||
| Wheel code : 332-1G | Wheel code : 331-2G |
| Model | Wheel Material | Wheel Dia | Tread Width | Load Height | Plate Size | Plate Size | Hole Size | Load Capacity |
| 301ZN-01-632-332-2G | TPR | 63 (2½) | 32 | 92 | 96*66 | 75*45 | 8.5 | 80 |
| 301ZN-01-752-332-2G | 75 (3") | 32 | 105 | 96*66 | 75*45 | 8.5 | 90 | |
| 301ZN-01-100-332-2G | 100 (4") | 32 | 130 | 96*66 | 75*45 | 8.5 | 100 | |
| 301ZN-01-125-332-2G | 125 (5") | 32 | 158 | 96*66 | 75*45 | 8.5 | 125 |
| Model | Wheel Material | Wheel Dia | Tread Width | Load Height | Plate Size | Plate Size | Hole Size | Load Capacity |
| 301ZN-02-632-332-2G | TPR | 63 (2½) | 32 | 92 | 96*66 | 75*45 | 8.5 | 80 |
| 301ZN-02-752-332-2G | 75 (3") | 32 | 105 | 96*66 | 75*45 | 8.5 | 90 | |
| 301ZN-02-100-332-2G | 100 (4") | 32 | 130 | 96*66 | 75*45 | 8.5 | 100 | |
| 301ZN-02-125-332-2G | 125 (5") | 32 | 158 | 96*66 | 75*45 | 8.5 | 125 |
| Model | Wheel Material | Wheel Dia | Tread Width | Load Height | Plate Size | Plate Size | Hole Size | Load Capacity |
| 301ZN-022-632-332-2G | TPR | 63 (2½) | 32 | 92 | 96*66 | 75*45 | 8.5 | 80 |
| 301ZN-022-752-332-2G | 75 (3") | 32 | 105 | 96*66 | 75*45 | 8.5 | 90 | |
| 301ZN-022-100-332-2G | 100 (4") | 32 | 130 | 96*66 | 75*45 | 8.5 | 100 | |
| 301ZN-022-125-332-2G | 125 (5") | 32 | 158 | 96*66 | 75*45 | 8.5 | 125 |
A: TPR is softer than PP, making it better for polished floors—PP is more chemical-resistant, while TPR excels at shock absorption.
A: They work for covered outdoor areas (e.g., patio workshops), but avoid prolonged rain—TPR resists moisture but may degrade in harsh weather.
A: The 80KGS model (2.5" / 63mm) is ideal for small library carts or office supply trolleys—prioritizing shock absorption.
A: No—TPR’s traction prevents slipping on wet tile or concrete, making them safe for hospital bathrooms or kitchen floors.
