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Description
- 1x FingerTech Urethane Sumo Wheel 2.50"
- Diameter: 2.50 inches
- High-traction polyurethane molded around a machined and anodized aluminum rim
- Black anodized aluminum rims with machined rings and captive through-slots for tire tread
- Tire tread composed of Shore A20 polyurethane for highest traction
- Shore A45 tires are smooth, grippy, and stiffer for tougher applications
- Rim material: 6061 Aluminum, anodized black
- Tire material: Shore A20 or A45 polyurethane, vacuum-degassed
- Coefficient of friction (against smooth unpainted MDF wood): μ=1.75
- Shaft bores: Available in 3mm, 4mm, 6mm, and 0.5in
- Hole pattern: Three through-holes for 4-40 screws on a 0.75in diameter circle
- Keyway: 1/8" keyway and 0.5in bore, hub required to secure wheel to shaft