who here is running these bearings on the motor
thrust bearings
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A thrust bearing is not required on the "real" Neu motors because their bearings are designed to take axial thrust, and because their end bells are pinned in place. Plus it is almost impossible to get the correct pre-load on a thrust bearing with the lack of axial play on the Neus.
Thrust bearings are not a bad idea on the Feigao motors and other with glued endbells. There is enough end play on these motors to allow correct adjustment of the thrust bearings.
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A thrust bearing is not required on the "real" Neu motors because their bearings are designed to take axial thrust, and because their end bells are pinned in place. Plus it is almost impossible to get the correct pre-load on a thrust bearing with the lack of axial play on the Neus.
Thrust bearings are not a bad idea on the Feigao motors and other with glued endbells. There is enough end play on these motors to allow correct adjustment of the thrust bearings.
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I have a neu 1515 and noticed there is hardly any axial play, while there is quite a bit on the cc1518.
One other question-- if there is too much space between the coupler and the bell housing, would it be ok to install 2 thrust bearings toghether to fill the gap?
ChiefComment
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A thrust bearing is not required on the "real" Neu motors because their bearings are designed to take axial thrust, and because their end bells are pinned in place. Plus it is almost impossible to get the correct pre-load on a thrust bearing with the lack of axial play on the Neus.
Thrust bearings are not a bad idea on the Feigao motors and other with glued endbells. There is enough end play on these motors to allow correct adjustment of the thrust bearings.
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I have an older Neu that doesn't have the endbell pinned. The new ones don't need them because their pinned like fluid states but the older ones weren't.If all of your wishes are granted, many of your dreams will be destroyed!Comment
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What do you think about the castle creations motors?
...if there is too much space between the coupler and the bell housing, would it be ok to install 2 thrust bearings toghether to fill the gap?
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What do you think about the castle creations motors? I have a new cc1518 and in order to get the couper to sit snug against a thrust bearing will cause me a lot of rework... which I'm happy to avoid...
I have a neu 1515 and noticed there is hardly any axial play, while there is quite a bit on the cc1518.
One other question-- if there is too much space between the coupler and the bell housing, would it be ok to install 2 thrust bearings toghether to fill the gap?
Chief2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
'11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /MonoComment
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Or if your cheap you can drill out a wheel collar. That's what I use on my sv motors.If all of your wishes are granted, many of your dreams will be destroyed!Comment
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I run a thrust bearing in all of my builds. Its just second nature to me. Do all of them need it? Dont know for sure, but its cheap insurance the way I look at it. All one needs to do is leave a gap between the drive dog and the strut or stinger. Then all the force is put on the bearing. My feelings are they are normal for any build but thats just my opinion. One of the first things I do when I get a new motor is trim down the output shaft and fit a coupler and bearing to it. Even if the motor doesnt have a hull to go in yet!
JohnChange is the one ConstantComment
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What is the correct adjustment? How do you correctly use a thrust bearing? Do you pull the motor shaft untill there is no more movement in either direction?"IT IS BETTER TO REMAIN SILENT AND THOUGHT A FOOL THAN TO OPEN YOUR MOUTH AND REMOVE ALL DOUBT"Comment
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To correctly pre-load a thrust bearing your motor has to have axial (end) play....the shaft slides in and out a little. You want to set the thrust bearing so that there is still a small amount of end play (but less than without the bearing) so that the thrust bearing takes it all under compression but is not in a bind.
If you just set the bearing so there is no play, then you have no idea of the pre-loading, and you may install the thrust bearing compressed too tight. This can increase the internal drag of both the thrust and motor bearings greatly and reducing bearing life. Or the thrust bearing may not be transferring any thrust at all. Since Neu motors usually have no end play, you can't accurately set the pre-load.
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on my cc 1518 say there is 1/16" of play which pushes foward toward the prop i will split the difference and set the thrust bearing to allow alittle play but the prop thrust to be absorbed by the thrust bearing and not the end bell bearing
is this correctComment
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