Spindle failure

[SeniorCitizen]

Not sure what you mean by pushing the outer race with fingers. I use my shop press to disassemble and reassemble. Attached is the spindle parts, nothing complicated.

The next time you have the chance measure the length of the spacer and compare that measurement to the distance apart the 2 outer bearing races will be when seated completely .

If the spacer length is a few thousandth less than the other measurement you're good to go . If it's not less the bearings will have a short life . A BIL had a repair shop replace the bearings and the spacer was omitted on re-assembly . He was calling me within an hour because of a noise he was not familiar with .
I prefer the top bearing to be free floating and that's how most are .

 

[Davenj4f]

The next time you have the chance measure the length of the spacer and compare that measurement to the distance apart the 2 outer bearing races will be when seated completely .

If the spacer length is a few thousandth less than the other measurement you're good to go . If it's not less the bearings will have a short life . A BIL had a repair shop replace the bearings and the spacer was omitted on re-assembly . He was calling me within an hour because of a noise he was not familiar with .
I prefer the top bearing to be free floating and that's how most are .

I think I understand what you are saying. I'll check that measurement next time I have one apart. But I think the bearings are tight and have to be pressed in, but will see. If one will slide on by hand, I will be able to measure. No way to measure once together.

 

[SeniorCitizen]

Many have both bearings pressed in . The last JD i replaced the bearings on had the top bearing a push fit . Those that don't have i reduced the outer race of that bearing diameter until it was a push fit .

 

[Davenj4f]

Many have both bearings pressed in . The last JD i replaced the bearings on had the top bearing a push fit . Those that don't have i reduced the outer race of that bearing diameter until it was a push fit .

I have to use the shop press to push everything in place. About the weep hole. I took the weep hole relief fitting off and was surprised as to how it is made. It has a spring loaded plunger that the spring keeps closed to the outside, but pressure from the grease gun can force grease out easily. It's not a strong spring. But it still makes me wonder if hot grease after spinning for several hours can still get out. Can't really get to upper portion of the casing to make a weep hole at the top, so wondered about putting a plug in the bottom weep hole (M10 x 1.0) and take it out when I wanted to grease it up, and also see if any still got out. Thoughts ?

 

[SeniorCitizen]

The reason i don't press one in is to accommodate the expansion forces when those parts increase in length as they gain temperature , The pushed in bearing can move if need be so side stress isn't attempting to force the balls out the side of their housing . If the sleeve that's between the bearing inner race's is longer than the distance between the 2 bearing bosses and the 2 bearings are pressed in damage has already occurred when the outer races are pressed in , I grind the outer race of the top bearing to my size liking to make the pushed fit then if more distance is required the top bearing can move with that expansion .

 

[Davenj4f]

The reason i don't press one in is to accommodate the expansion forces when those parts increase in length as they gain temperature , The pushed in bearing can move if need be so side stress isn't attempting to force the balls out the side of their housing . If the sleeve that's between the bearing inner race's is longer than the distance between the 2 bearing bosses and the 2 bearings are pressed in damage has already occurred when the outer races are pressed in , I grind the outer race of the top bearing to my size liking to make the pushed fit then if more distance is required the top bearing can move with that expansion .

OK I follow. You are letting the top bearing be able to move up as needed. But the trash shield is pressed in over the bearing. There is one for the bottom bearing also. The trash shield holds the bearing in place, and the pulley is on top of the trash shield. I need to look and see if the pulley actually goes all the way down to the trash shield, not sure, never looked for that before. Back to checking the distance on the inside concerning the spacer.

 

[SeniorCitizen]

To compare spacer length it's easy to feel the any difference or use a vernier caliper , by setting the housing on about something like a 3/4 socket and dropping the spacer in . Any difference will of course be at the top .

 

[Davenj4f]

To compare spacer length it's easy to feel the any difference or use a vernier caliper , by setting the housing on about something like a 3/4 socket and dropping the spacer in . Any difference will of course be at the top .

Can't deal with the internal spacer till I tear one down again. Meanwhile, I'm going to use a plug in the weep hole and see if that is where the grease is exiting from. The weep hole fitting (called "relief fitting") screws into a M10x1.0 nut, but I thing it is a pipe thread. Will check at the hardware store tomorrow.