Dear Tmoose
Idler shaft rotates in two bearings. Upper bush and the other end we have mounted an angular contact ball bearing. In our design axial load direction is downward so an angular contact for lower bearing is proper. But with these wrong pairs of helical gears axial load direction is...
Dear Mike
It was not any of our company members mistake. What 's important now is that being out of service of this pump causes almost 700000 dollars a day damage to country income and it's not important to find the guilty. We don't have any other options and have to use these wrong hand...
Dear Mike
Gears are manufactured in other countries such as turkey and Spain and it seems to be ineffective to communicate them. We must use these wrong hand expensive gears!!! What's your suggestion for one double act rolling element bearing able to bear below forces
Radial force: 11.9 KN
Axial...
Dear mike
We found the problem. bush had been designed to bear just radial forces not axial and trust bearing mounted in other end was designed to bear axial loads. helical Gears where manufactured in wrong direction so all axial loads were on bush causing temperature rising up and shaft seizing...
Hi Dear mike
Happy new year
I will think on your suggestion about lubrication oil and oil pump.I will inform you about what happens.
Sincerely yours
Mostafavi
Hi mike
Exactly!!!
I want to know in a centrifugal high speed pump class OH6 which has an increasing gearbox with shaft rotational speed almost 7000 rpm with distinct loads on it HOW CAN SOMEONE CHANGES UPPER BUSH WITH BEARING? WHAT'S THE PROCEDURE?
THANKS
Dear Mike and Electric
let me explain the problem in detail. we have designed a pump with increasing gearbox. Pump is vertical so gearbox is to. Our gear box has three shafts which are all vertical: Input shaft, Idler shaft and High speed shaft.Input shaft is coupled with electromotor with...
hi to everyone
thanks for your tips. speed is almost 7000 rpm and this problem happens occasionally. I think the problem is from wrong usage. sudden shocks cause to idler moves in up direction. this movement causes to idler upper point touches journal. this touch in this speed brings journal...
Hi to everyone
I have a shaft with velocity almost 7000 which always attaches to it's upper journal and causes to fail. Now I want to change it with one or two rolling element bearings. I want some help to know if it is possible in such a kind of speeds and what's the procedure of changing?
Thanks
