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RV-6A - GBC
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Date: 10-31-2010
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Number of Hours: 1.20
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Manual Reference: NA
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Brief Description: Prelim nose wheel fit
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Did some research on mounting the gear, and found discussions on the nose gear, tip overs, and alternative wheels. (#1 -Dwg C1) pencilled in note to drill and install a roll pin as an anti-rotation mechanism. The intent is to prevent the aluminum axle adapter from rotation. Preload on the nose gear wheel bearing might permit the adapters to rotate, becoming unintentional 'bushings' instead of the bearings turning as designed.
At least one alternative wheel design (Grove) uses a roll-pin inserted in the nose gear forks, and a slot in the side/edge of the adapter. Normal pre-load allows proper bearing free-wheel, and the adpater is 'captured' by the roll-pin. Good idea, and will follow that design unless something changes.
The roll-pin will be acquired to determine dimensions, before thru drilling the fork where shown in #3. Location on a line centered between lightening hole and axle hole, top side of fork (compression load). Thru drilling allows the pin to be driven in/out, especially if sheared. Wheel pant bracket will provide some retention from working out.
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Nose wheel plan
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Axle adapter
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Anti-rotate roll-pin location
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