Bearing housing

An extractor assembly, comprising:

• a frame structure configured to couple the extractor assembly to a work machine;
• a support tube coupled to the frame structure along a bearing axis;
• a fan coupled to the support tube to rotate about the bearing axis relative to the support tube;
• wherein, the fan is rotationally coupled to the support tube through a bearing coupler assembly, the bearing coupler assembly comprising:
• a bearing housing sized to at least partially receive a bearing assembly;
• a shaft positioned at least partially through the bearing housing along the bearing axis, the shaft defining a shaft lip, a fastener end, and a fan coupler end, the bearing assembly coupling the shaft to the bearing housing so the shaft can rotate about the bearing axis to rotate the fan coupled to the fan coupler end;
• a fastener configured to be coupled to the fastener end of the shaft;
• a tone wheel positioned axially along the bearing axis between the fastener and the bearing assembly, the tone wheel having an indicator;
• and
• a sensor coupled to the bearing housing and configured to identify when the indicator passes thereby;
• wherein, the tone wheel rotates with the fan and the sensor is configured to identify the rotation speed of the fan;
• further wherein, the fastener compresses the bearing assembly between the tone wheel and the shaft lip.