GEAR-RING-YM 3844822 - Caterpillar

Note: The drive hub is a heavy shrink fit installation.
Evenly heat the drive hub to 400 °C (752.0 °F). An oven is the preferred method for heating the drive hub.
Always wear protective gloves when handling parts that have been heated.
Place the drive hub on a work bench.
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A drive hub with a stop fixture attached.
Attach the stop fixture to the drive hub.
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Slide the drive hub on the rotor shaft. Continue to slide the drive hub until the stop fixture contacts the rotor shaft.
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Remove the stop fixture from the drive hub.Drive Hub Installation for Other Applications
Drive Hub Installation
Installation Process with Torch
Allow the rotor shaft to cool completely to the ambient temperature after removal of the hub.
Clean all scratches, grooves, and imperfections on the shaft and on the hub carefully. The appropriate tools must be used to clean the inside diameter of the hub properly.Note: This step