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#1
27-10-18, 07:26
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Bruce, Because it is a good way to go from high speed low torque to low speed high torque. The sun gear is self supporting, being loaded from opposite sides.
Probably lighter than a big pinion and gear arrangement, especially considering the line in and line out are the same axis in this case. Without carefully counting teeth, it is probably somewhere between a 12:1 to 15:1 reduction.
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Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions.... Last edited by Lynn Eades; 27-10-18 at 07:37. 
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#2
03-11-18, 08:40
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Wow, I will be ever so glad when this part is finished as is so time consuming to get it right. I have machined up metal plugs to go in place where the bearings go and have a centred hole. It all needed to be assembled so I can use the centre hole to transfer the centre location to both sides and it has been no easy task. It maybe the total wrong way but it is progressing. Now that I have the centres I can move on and machine the bearing centre shafts. These recess part way into the bottom housing and a bolt goes through the centre and threads in place. I sure am lucky to have one original.
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#3
03-11-18, 08:44
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I had to reduce the size of the gears to fit just below the ring gear. I am hoping to finish all parts for this drive this week so I can get them hardened and back for final assembly and installation.
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#4
03-11-18, 11:02
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Am I correct in thinking, Colin, that although two different engines will be in service between Wombat and Bower Bird, you must still fabricate essentially two sets of Powertrain items at this point in the project? What we see in your recent posts is essentially ‘x 4’?
David
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#5
03-11-18, 15:55
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Hi David, no I am going to make wombat hydraulic drive as that will take care of the turning and reverse all in one. There are some very good system components out there with 2 speed pumps and they are generally all variable speed. At this point and time I haven't given too much thought about Wombat. As it will be so totally different I just didn't want to have two different lots of componentry around my workshop and get myself all confused. You know we are all accused of non multi tasking
 
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