I'm trying to replace the worn sheave on the top pulley assemblies of two Rohn EF-2545 gin poles. This appears to be cast aluminum with a 5/16" bolt going through the center hole. The sheaves measure
(Tried replying directly to you, but aol bounced it back). Jon Nothing specific, but Grainger sells a variety of Chinese made sheaves under the name Zoro. They also sell them on eBay. Dick, K0CAT ___
Chuck it in a lathe, bore slightly oversize, press in brass or steel bushing as desired. Probably 15 minutes of work in a machine shop. 73, geo - n4ua _______________________________________________
If you cannot find one it should be easy to bore the holes for 3/8" bolts. John KK9A I'm trying to replace the worn sheave on the top pulley assemblies of two Rohn EF-2545 gin poles. This appears to
Instant solution is in the lathe and drilled for 3/8 bolt as there isn't much hub material for a bushing. I'd use an end mill for the drilling since the worn hole probably isn't round and certainly i
I'd rengineer it to use a quality stainless sheave with a proper bearing, et al. Start with the size/type of line/load required and work out. Search for and contact marine supply places, et al. -- Or
Excellent suggestion.... consider a proper bronxe bushind with matching shaft/fastener, and if there's enough material, consider machining for an actual bearing.... altgough likely not enough. I'm
This is what I'm talking about. Properly sized for max load plus 50% at least. Less friction and will last a long time. Sent from my Verizon, Samsung Galaxy smartphone It is amazing how much lower