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Pully/Pocket wheel for Lifting chains...

Pully/Pocket wheel for Lifting chains...

(OP)
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/He...

I've talked to these guys about their sprocket, but they're saying I have to use their chains, because their chains are calibrated, and it cannot be use with lifting chain because the tolerance is too high...


I'm basically trying pull a load at 90/360 degree, similar to a pulley, the "rope" has to be a lifting chain..

RE: Pully/Pocket wheel for Lifting chains...

The winch/hoist part you seek is called a 'wildcat'.

It needs to match the geometry of the chain fairly well.
I can't remember seeing any wildcats for sale separately.

Mike Halloran
Pembroke Pines, FL, USA

RE: Pully/Pocket wheel for Lifting chains...

2
Hello,

if it is this

what you're seeking: It can be manuf. as per your spec (LxW, power transmission or fixation feature, etc.). This is a sample, used for a round link lifting chain.
Pls. contact the supplier of your chain and have them make you an offer or else point you towards a suitable manufacturer.
However, technically: Yes, the chain needs to be of good = sufficient quality, calibrated and calculated to suit the requirements during movement. If the chain is fixed at both ends, a take-up feature needs to be included into the system.
Regards

RSVP
Roland Heilmann, Leipzig, FRG

RE: Pully/Pocket wheel for Lifting chains...

(OP)
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 system, they're just idler wheel..

RE: Pully/Pocket wheel for Lifting chains...

For an application as simple as yours appears to be, you could probably use a much simpler geometry for the idlers. Recognize that the chain manufacturer will accept no responsibility unless you work with them and buy their parts, and probably not even then.

If you'd prefer to work with stuff that's been standardized and is available from many manufacturers, consider roller chain. Do respect the load ratings, of course.

Mike Halloran
Pembroke Pines, FL, USA

RE: Pully/Pocket wheel for Lifting chains...

(OP)
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 on it's WLL.
Also, it was specified by the customer so I'm stuck..


Does anyone see any problem with this design to be used as the idler?

RE: Pully/Pocket wheel for Lifting chains...

No expertise claimed here, but it looks like a satisfactory idler for link chain.

Mike Halloran
Pembroke Pines, FL, USA

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