FingerTech Urethane Sumo Wheel 2 inch 50.8mm Shore A45 Orange (single)
Out Of Stock
By popular demand, we have brought our experience from molding mini-sumo wheels into larger Sumo Wheels!
Our high-traction polyurethane is molded in four sizes around a machined and anodized aluminum rim.
Specifications:
Rim material: 6061 Aluminum, anodized black
Tire material: Available in Shore A20 or A45 polyurethane, professionally vacuum-degassed
(A20 recommended for Sumo robots up to 6kg (13lb). A45 is for tougher applications where damage to the wheels is expected.)
Coefficient of Friction (against smooth unpainted MDF wood): μ=1.75 (Silicone μ=1.30, Rubber μ=1.05)
Shaft bores: Sumo Wheel Hubs are available in 3mm, 4mm, 6mm, and 0.5in. Hubs purchased separately - if you want to use these wheels on motors with different shaft size, you only need to buy new hubs instead of all new wheels!
Hole pattern: Three through-holes for 4-40 screws are spaced equally on a 0.75in diameter circle.
Keyway: The rims have a 1/8" keyway and 0/5in bore, but you will still need a hub to secure the wheel to a shaft.
Specifications: | 44.45mm (1.75in) OD | 50.8mm (2.00in) OD | 63.5mm (2.50in) OD | 76.2mm (3.00in) OD |
Width | 25.4mm (1.0in) | 25.4mm (1.0in) | 38.1mm (1.5in) | 38.1mm (1.5in) |
Inner Diameter | 31.75mm (1.25in) | 31.75mm (1.25in) | 38.1mm (1.5in) | 44.45mm (1.75in) |
Inner Depth | 17.27mm (0.68in) | 17.27mm (0.68in) | 29.97mm (1.18in) | 29.97mm (1.18in) |
Weight | 36.7grams (1.29oz) | 48.5grams (1.71oz) | 123grams (4.33oz) | 171grams (6.02oz) |