XRAY – Tech Tip: T2’008 Pinion Gear Installation

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Please note that the T2‘008 6-cell EU Rubber-spec Edition and T2‘008 6-cell US Foam-spec Edition chassis is very narrow and as such the batteries and motor are placed as close to the car centerline as possible. Because of this, some wider pinion gears may contact therearmost cell of a 6-cell battery pack.

For stock racing, XRAY recommends using their new offset spur gears along with narrow pinion gears; the narrow pinion gear should be 3.0~4.0mm wide. XRAY offers a range of narrow 3.5mm wide pinion gears. See the tables for gearing selections.

Using a narrow pinion gear will help to prevent the pinion gear from contacting the battery.

Standard 5mm wide pinion gear and standard XRAY spur gear. The pinion gear is very close to the battery bar. Note that the battery bar is flat.

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New XRAY 3.5mm narrow pinion gear with standard XRAY spur gear. There is greater distance between the pinion gear and battery bar. Note that the battery bar is flat.

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New XRAY 3.5mm narrow pinion gear with new XRAY offset spur gear. The new spur gear is more offset so it is farther away from the battery bar. Note that the battery bar is flat.

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A domed battery bar may contact the pinion gear. We therefore recommend using a flat battery bar, or flatten the domed battery bar.

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The flat battery bar gives more space between the pinion gear and the battery pack. Using a narrow pinion gear will help to prevent the pinion gear from contacting the battery.

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Source : XRAY

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