DEAN BENNETT SUPPLY CO. YOUR WINDMILL SUPPLIES SOURCE

AERMOTOR CONSTRUCTION DETAILS

The Aermotor windmill is simple in design, therefore it has high efficiency and a long life. It requires very little attention or service beyond changing the oil once a year. Oil is circulated to all moving parts simply by the turning of the gears. Oil flowing to the hub is returned through the oil collector along the wheel shaft by the turning of the wheel.

The improvements in the Model 802 Aermotor have been developed through years of testing under all kinds of field conditions. The screw in tension wheel arms make a wheel that is easy to assemble, rigid in form and perfect in alignment. The replaceable bearings make it a simple job to rebuild the motor at a low cost after it has given years of hard service. This model motor can be used to replace an old open gear model Aermotor. The wheel sections and the vane will fit onto the new motor. Both model 702 and model 802 use the same parts. The main difference is the 702 used Babbitt bearings and the 802 uses Garlock bearings. The main frame is a solid casting, precision machined to keep shafts, gears and bearings in perfect alignment. The frame has no wear surface to deteriate. Each of the three bearings slip into place easily. Repeated tests show that these replaceable Garlock bearings, flooded with oil, run lightly, are long lasting, stand abuse and are the most practical bearings that can be used in a windmill.

The frictionless guide wheel in the sturdy guide loop keeps the pump rod in perfect alignment through the supporting mast pipe. Every part is accessible by just slipping off the galvanized cover that protects the gears. Shown below is the wheel hub and shaft, which balances the center of the wheel directly over the supporting arm of the main frame. There is no overhang on the wheel shaft. Round wheel arms are screwed into the hub and the wheel sections are secured with only 6 bolts, forming a rigid wheel of great power and with maximum strength.

The double large gears and pinions carry the load in perfect balance between them. Two accurately machined pitmen bosses are integral parts of each gear, allowing two lengths of stroke on each mill. The stroke is easily changed by moving the pitman arms to the other boss position and changing the hole at the guide wheel shaft. The large gear assembly with shaft and bearing is removable. The double pitman arms have Garlock bearings in the lower ends that ride on the bosses of the large gears.

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