FingerTech have brought their experience from molding mini-sumo wheels into larger Sumo Wheels!
• These 63.5mm (2.50") high-traction polyurethane are moulded in four sizes around a machined and anodized aluminum hub.
The gold-yellow anodized aluminum hubs have a machined pair of rings and captive slots for keeping the tyre in place.
Tyre tread composed of Shore A20 polyurethane makes these the highest traction wheels you can buy.
Supplied in red colour tyre only.
Hub material: 6061 Aluminum, anodized gold-yellow
Tyre material: Shore A20 polyurethane, professionally vacuum-degassed
(A20 recommended for Sumo robots.)
Coefficient of Friction (against smooth unpainted MDF wood): μ=1.75 (Silicone μ=1.30, Rubber μ=1.05)
Outer Diameter: see table below
Length: 38.1mm (1.5in)
Inner Diameter: 31.75mm (1.25in)
Inner Depth: 31.75mm (1.25in)
Shaft bore: 3mm (0.118") - can be enlarged to any size up to 12.7mm (1/2")
Keyway: A 1/8" or 3/16" keyway can be added to bore size of 1/2".
6-32 Setscrew - uses 1/16" hex wrench
|Outer Diameter||44.45mm (1.75")||50.8mm (2.00")||63.5mm (2.50")||76.2mm (3.00")|
|Weight||61grams (2.15oz)||83grams (2.93oz)||126grams (4.44oz)||178grams (6.28oz)|
Tip: Clean the tyres with isopropyl alcohol wipes before each match for optimal traction.
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