Idler shaft gets super hot
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Idler shaft gets super hot
The idler shaft on my mark v (SS 41594) is getting super hot. I suspect the bearing is shot. I took the belts off, and it spins, but seems to have a lot of drag. I looked on eBay, but I can’t figure out what bearings will fit. Any help would be appreciated. Thanks.
Re: Idler shaft gets super hot
As far as I know the bearing is not replaceable. At one time there were ebay aftermarket new shaft/bearing assemblies with the old style bearing, (aka water pump bearing) but I don't see those now. Shopsmith is selling a new style, with two distinct ball bearings. The new ones are shielded, not sealed like the old. My experience with the new style is on the PowerPro, it is a different assembly but appears to have the same bearings. My experience with that hasn't been great, or even good, but some people like it.tprowood wrote: ↑Fri Mar 29, 2024 10:24 pm The idler shaft on my mark v (SS 41594) is getting super hot. I suspect the bearing is shot. I took the belts off, and it spins, but seems to have a lot of drag. I looked on eBay, but I can’t figure out what bearings will fit. Any help would be appreciated. Thanks.
IIWM I'd likely buy a used Idler Shaft, either with or without sheaves. I think the old style bearings are that much better.
- David
- JPG
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Re: Idler shaft gets super hot
BTW the idler shaft getting hot is "typical". Attaching a hub helps dissipate heat.
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
Re: Idler shaft gets super hot
JPG
When you say hot, how hot? Mine is almost to hot to touch. Thanks.
When you say hot, how hot? Mine is almost to hot to touch. Thanks.
- JPG
- Platinum Member
- Posts: 34650
- Joined: Wed Dec 10, 2008 7:42 pm
- Location: Lexington, Ky (TAMECAT territory)
Re: Idler shaft gets super hot
Almost is the key. That makes me think 'typical'.
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
╟JPG ╢
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
Re: Idler shaft gets super hot
Thanks. I’m new to this SS universe, just getting my bearings, pun intended.
Re: Idler shaft gets super hot
Follow up question on hot idler. I’ve taken it out, and spun it by hand. It spins, but not ‘freely’, ie stops rotating real fast, it doesn’t coast after I stop spinning it. Thoughts? Is it worn out?
Re: Idler shaft gets super hot
How long does it take to stop? Are you trying it while it's hot?
Ed from Rhode Island
510 PowerPro Double Tilt:Greenie PowerPro Drill Press:500 Sanding Shorty w/Belt&Strip Sanders
Super Sawsmith 2000:Scroll Saw w/Stand:Joint-Matic:Power Station:Power Stand:Bandsaw:Joiner:Jigsaw
1961 Goldie:1960 Sawsmith RAS:10ER
510 PowerPro Double Tilt:Greenie PowerPro Drill Press:500 Sanding Shorty w/Belt&Strip Sanders
Super Sawsmith 2000:Scroll Saw w/Stand:Joint-Matic:Power Station:Power Stand:Bandsaw:Joiner:Jigsaw
1961 Goldie:1960 Sawsmith RAS:10ER
Re: Idler shaft gets super hot
Spinning it cold, stops before after a couple rotations.
Re: Idler shaft gets super hot
I have a loose one, uninstalled. With both sheaves on it for inertia and spinning it by hand it stops in about 3 seconds. I'd guess around 4 or 5 rotations. If yours is fully installed the button bearing would also come into play. Typically button bearings spin very freely.
- David