yes it is a 3.5" nominal, just to fit the bearing.. if you look, that output shaft is a step-down shaft from a 4-7/16, to a 4-3/8, to 3.5.. I couldn't find any pillow block bearing larger than 3.5..
We already did a lot of calculation and this size should be more than adequate.. I'm just not...
You guys are really scaring me.
1) Gearbox
2) Sprocket
3) Pillow Block
4) Brake for the motor
5) Motor
The shaft is 4-3/8" Dia. All of this is to move a 10,000 LB concrete block(counter weight) up and down.. it'll moving about 20-30 RPM (Low RPM).. The bearing is rated for 22,900 Dynamic...
This was what I was expecting... because not many vendor provide bearing ID/OD tolerances. I never heard of ntnamerica, feel ashamed.
Another question, if anyone mind answering. I know larger bearing/heavy machinery usually require tight fits. Can I get away with going under sizing the shaft...
Hello,
I been trying to design my shaft for a bearing that meet the specs.. However, the manufacture usually only give a nominal size..
Then I went and look for others.. and they all seems to only give a nominal size..
is there a reason to that?
Its a one time balance, that's how I see it too.. I was hoping for something safe that's available..
Our company has been using this setup for years, but it's always been done on a smaller scale and the adjustment were already difficult to do.. but now they're 5/8" size chains, so we have to...
Thanks RolMec for your suggestion, but what jgKRI said is correct, I asked the RUD ppl already, its state on their catalog that those are not made for lifting.
@jgKRI, I'm using lifting chains to lift a counterweight. I'm just trying to adjust the chain without removing links. There's...
Hello,
Does anyone know of something that's similar to a turnbuckle, but is use for a lifting chain...?
This is the closest I can come to, but it's not made for lifting.. https://www.mcmaster.com/#2967T6
Roller chains is a no go because they're just not strong enough for our application. On top of that it'll be inside a really hot environment (1200F), so it'll be even weaker.
I went with lifting chain because of its heavy duty nature & there are some studies with numbers on temperature effects...
I have a couple of more concern...
Here's my quick sketch..
http://imgur.com/EXP8Jua
does anyone see anything wrong with using the lifting chains this way? the pocketwheels are free spinning
because from my research, these wildcat/pocketwheels are ment to be pull like a hoist, and in my...
Hello, I'm just wondering, is there such thing as an Idler wheel/sprocket/gear thing for a lifting chain?
Similar to these: http://www.pewagchain.com/Products/Forderketten/Hebezeugketten/Kettenrader/TRP-Taschenrader.aspx
I've talked to these guys about their sprocket, but they're saying I...
