New Wheels for Power Stands or Pro Planer
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- dusty
- Platinum Member
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- Joined: Wed Nov 22, 2006 6:52 am
- Location: Tucson (Wildcat Country), Arizona
Re: New Wheels for Power Stands or Pro Planer
Standard Shopsmith Caster (before the 3" upgrade)
Stem 7/16" grip ring 1 11/16" long
Load Height 2 3/4"
2" wheel 3/4 wide
Maybe you are right, John. Wrong or special order.
Just try to find a source (other than Shopsmith) for a caster that meets the above specs.
This would not be the first custom part that Shopsmith uses. Think motors as an example.
Stem 7/16" grip ring 1 11/16" long
Load Height 2 3/4"
2" wheel 3/4 wide
Maybe you are right, John. Wrong or special order.
Just try to find a source (other than Shopsmith) for a caster that meets the above specs.
This would not be the first custom part that Shopsmith uses. Think motors as an example.
"Making Sawdust Safely"
Dusty
Sent from my Dell XPS using Firefox.
Dusty
Sent from my Dell XPS using Firefox.
- JPG
- Platinum Member
- Posts: 34644
- Joined: Wed Dec 10, 2008 7:42 pm
- Location: Lexington, Ky (TAMECAT territory)
Re: New Wheels for Power Stands or Pro Planer
FWIW the MVII casters only vary by stem length and piston bore depth. Shorter IIRC. Will verify that shortly.
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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
- JPG
- Platinum Member
- Posts: 34644
- Joined: Wed Dec 10, 2008 7:42 pm
- Location: Lexington, Ky (TAMECAT territory)
Re: New Wheels for Power Stands or Pro Planer
Bore 1.283 1 9/32
Stem 1.383 1 3/8?
Stem 1.383 1 3/8?
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╟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
╟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: New Wheels for Power Stands or Pro Planer
The 3" castor stem is shorter because it has a pivot bearing just above the wheel. The weight of the machine is supposed to ride on that bearing. Thus you want the end of the piston to sit on that bearing. To accomplish that the stem must be shorter than the piston bore.dusty wrote:Standard Shopsmith Caster (before the 3" upgrade)
Stem 7/16" grip ring 1 11/16" long
Load Height 2 3/4"
2" wheel 3/4 wide
Maybe you are right, John. Wrong or special order.
Just try to find a source (other than Shopsmith) for a caster that meets the above specs.
This would not be the first custom part that Shopsmith uses. Think motors as an example.
Well, if it is a wrong order then SS has been getting it wrong for 70+ years. I seriously doubt that.
I rest my case!
John & Mary Burger
Eagle's Lair Woodshop
Hooper, UT
Eagle's Lair Woodshop
Hooper, UT
Re: New Wheels for Power Stands or Pro Planer
With a rounded end on the stem? If so then the design is the same just the dimensions are different.JPG wrote:Bore 1.283 1 9/32
Stem 1.383 1 3/8?
John & Mary Burger
Eagle's Lair Woodshop
Hooper, UT
Eagle's Lair Woodshop
Hooper, UT
- JPG
- Platinum Member
- Posts: 34644
- Joined: Wed Dec 10, 2008 7:42 pm
- Location: Lexington, Ky (TAMECAT territory)
Re: New Wheels for Power Stands or Pro Planer
YES. And the bore has a more obvious spherical shape( it is shallower, so it may just be more easily seen).jsburger wrote:With a rounded end on the stem? If so then the design is the same just the dimensions are different.JPG wrote:Bore 1.283 1 9/32
Stem 1.383 1 3/8?
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╟JPG ╢
╚═══╝
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 ╢
╚═══╝
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
- dusty
- Platinum Member
- Posts: 21371
- Joined: Wed Nov 22, 2006 6:52 am
- Location: Tucson (Wildcat Country), Arizona
Re: New Wheels for Power Stands or Pro Planer
And dimensions are not part of the design. In the case of the 2" caster from Shopsmith - who sells casters that meet that description.jsburger wrote:With a rounded end on the stem? If so then the design is the same just the dimensions are different.JPG wrote:Bore 1.283 1 9/32
Stem 1.383 1 3/8?
"Making Sawdust Safely"
Dusty
Sent from my Dell XPS using Firefox.
Dusty
Sent from my Dell XPS using Firefox.
- JPG
- Platinum Member
- Posts: 34644
- Joined: Wed Dec 10, 2008 7:42 pm
- Location: Lexington, Ky (TAMECAT territory)
Re: New Wheels for Power Stands or Pro Planer
I dare say 70 years ago they were quite common. Cost reduction efforts no doubt are the cause of their scarcity today. After all, the current SS 2" casters have not changed.dusty wrote:And dimensions are not part of the design. In the case of the 2" caster from Shopsmith - who sells casters that meet that description.jsburger wrote:With a rounded end on the stem? If so then the design is the same just the dimensions are different.JPG wrote:Bore 1.283 1 9/32
Stem 1.383 1 3/8?
How can you say with a straight face that dimensions are NOT part of a design???
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╟JPG ╢
╚═══╝
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 ╢
╚═══╝
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: New Wheels for Power Stands or Pro Planer
I would expect the MK 5/V piston to be the same then. You don't end up with a castor where the castor stem is rounded, the piston bore end is rounded and the castor stem is long enough to bottom out in the piston other than by design. And it has been that way for 70+ years. Of course as you say that type of design may have been common back then so SS has continued it like a lot of their other designs.JPG wrote:YES. And the bore has a more obvious spherical shape( it is shallower, so it may just be more easily seen).jsburger wrote:With a rounded end on the stem? If so then the design is the same just the dimensions are different.JPG wrote:Bore 1.283 1 9/32
Stem 1.383 1 3/8?
John & Mary Burger
Eagle's Lair Woodshop
Hooper, UT
Eagle's Lair Woodshop
Hooper, UT
- dusty
- Platinum Member
- Posts: 21371
- Joined: Wed Nov 22, 2006 6:52 am
- Location: Tucson (Wildcat Country), Arizona
Re: New Wheels for Power Stands or Pro Planer
We don't know that the 2" caster with the 1 11/16" stem has been around for 70+ years. But even if it has, that solves nothing. These two images show part of the problem that I am attempting to solve and I hope that the casters that I have on order (with the proper load height and greater weight capacity) will solve at least my problem.
I have replaced at least a half dozen casters that look like the one on the right.
I have replaced at least a half dozen casters that look like the one on the right.
"Making Sawdust Safely"
Dusty
Sent from my Dell XPS using Firefox.
Dusty
Sent from my Dell XPS using Firefox.