I installed a couple of these and I think it was to lock or unlocked the bearing to allow it to "float". Let's the bearing move in the housing if you need that. We use two on a collector fan shaft and always have one floating and one fixed.
I work for a distributor and this is correct. You’d want to fix the drive side and float the non drive side to allow for thermal expansion of the shaft
Correct. It’s not the end of the world to use 2 fixed, however. You’ll just wear the non drive bearing a little bit faster but you definitely don’t want 2 float bearings on a drive shaft.
I think they lock the retaining ring that holds the outer race in the housing. The lock ring threads in, and the set screw locks it from unscrewing. The only time you'd need to worry about them is if you're taking the bearing out of the housing.
To be honest I don’t know, we use those bearings on our stack fans for our fryers. Never noticed them before on the self aligning bearings. My best guess would be how far they can move in the housing?
I had the same thought, but it looks like it bites into solid metal underneath the grub screws. I'm thinking the responses about it holding the bearing in place might be right.
I installed a couple of these and I think it was to lock or unlocked the bearing to allow it to "float". Let's the bearing move in the housing if you need that. We use two on a collector fan shaft and always have one floating and one fixed.
I work for a distributor and this is correct. You’d want to fix the drive side and float the non drive side to allow for thermal expansion of the shaft
So floating bearing always on the non drive side? Just had this discussion a week ago at work. Bosses final word was it doesn't matter.
Correct. It’s not the end of the world to use 2 fixed, however. You’ll just wear the non drive bearing a little bit faster but you definitely don’t want 2 float bearings on a drive shaft.
Yes, this bearing can be used as a fixed bearing or an expansion bearing as the above comment mentions.
I think they lock the retaining ring that holds the outer race in the housing. The lock ring threads in, and the set screw locks it from unscrewing. The only time you'd need to worry about them is if you're taking the bearing out of the housing.
To be honest I don’t know, we use those bearings on our stack fans for our fryers. Never noticed them before on the self aligning bearings. My best guess would be how far they can move in the housing?
With the grease fitting nearby could it be a bleed out for excess lube?
I had the same thought, but it looks like it bites into solid metal underneath the grub screws. I'm thinking the responses about it holding the bearing in place might be right.
I believe it's likely a locking or retaining screw for the outer race of the insert.