Product Overview: 6" Aluminum Dualie Omni Wheel with 1/2" Bearings These wheels are light and durable. They will bend under a severe impact, but can be easily repaired. Specifications: Diameter: 6 inches Width Across Middle: 1 inches Bore: 1.124 inch diameter bore Bolt Pattern: 6 Holes around a 1.875" diameter circle Body Material: Aluminum with Aluminum Center Spacer Load Capacity: 120 Pounds (rollers don't spin past this weight) Coefficient of Friction, Forward/Backwards: Static: 1 Dynamic: 0.8-0.88 Coefficient of Friction, Sideways: Static: 0.2-0.27 Dynamic: 0.16-0.2 Weight: 1.4 pounds Number of Rollers: 28 Roller Material, Outside: Black SBR rubber Roller Bearing Material: Brass Roller Axle: Steel Dowel Pin Roller Diameter: 3/4 inch Roller Durometer: 80A Repairable by removing perimeter M3 screws and Center #10-32 Screws Included Hardware: Four - 6" Aluminum Omni Outer Plates Two - 6" Aluminum Omni Inner Plates Twenty-Eight - Black SBR Roller Twenty-Eight - Steel Dowel Pins Fifty-Six - Brass Bushings Twenty-Eight - Individual M3x10mm Screws Six - Individual #10-32x1/2" SHCS One - Aluminum Omni Spacer Two - 1/2" FR8ZZ Bearings Usage: With Sprocket: If you wish to drive this wheel with a sprocket, then the sprocket needs to be attached to the side of the wheel, and two ball bearings need to be pressed into the wheel (one on each side). The ball bearing must have a 1.125" od. For a 1/2" id, use am-0030. For a 3/8" id, use am-0573. The sprocket needs to be spaced out in order for the chain to miss the side of the wheels, so use Hardware Kit 6, which includes the spacers, screws, and nuts for this. With Bearings: Two ball bearings need to be pressed into the wheel (one on each side). The ball bearing must have a 1.125" od. For a 1/2" id, use am-0030. For a 3/8" id, use am-0573.
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