So, given that this is an audio forum why the heck am I posting about this? Well... there are lots of bright sparks on the forum with a ton of knowledge to draw on and maybe some ideas how to source a solution to a problem. So here it is.
We have one of those older homes (110 this year) that has a functional back alley where the garbage gets put out etc. The back fence and roll-away gate was installed sometime in the early 1920s and while parts have been deteriorating on a continuing basis for decades things have finally reached the point where "quick fixes" aren't enough.
As you can see the gate is huge and weighs a ton. It has a roller set up on the right hand (opening) end on the ground which is still ok and has undoubtedly been replaced a few times over the years.
The main weight of the gate is supported in a channel with two support points, each with a double roller. Originally the flange that the rollers attach to was welded to the arm, but sometime very long ago the welds broke off when the cement below settled to a lower level. In the second photo you can see the remains of the original welded installation just under the present strapping.
As you can see a bit of MacGyver approach has been taken to support the gate and it works ok, though I have had to replace the sheet metal strapping every few years as it rusts and fatigues. Lately the roller assembly on the left has decided to twist and just drags and no amount of putting it straight accomplishes anything.
Inside the channel track are two roller assemblies and they really are completely shot. There are ball bearings in there, but with half of the balls missing. Even the wheels are getting worn out. Worse yet, I can see no way of disassembling things to replace the bearings, my initial preferred approach in spite of the worn wheels.
So, given I can't find any way to take the assembly apart I guess I'll have to find some means of duplicating it (times two).
I've put the calipers to things and here are the dimensions I get - in millimeters, though undoubtedly originally in inch units.
Wheel outer diameter - 47mm
Wheel width - 16mm - overall diameter of 40mm for the pair
Shaft diameter - 12mm
Bracket/flange - H - 72mm x W - 60mm x thickness - 5mm
So here is the question - where an how would anyone suggest I go about getting duplicate assemblies made? While I can see what is needed I really have no idea where to start.
Suggestions?
We have one of those older homes (110 this year) that has a functional back alley where the garbage gets put out etc. The back fence and roll-away gate was installed sometime in the early 1920s and while parts have been deteriorating on a continuing basis for decades things have finally reached the point where "quick fixes" aren't enough.
As you can see the gate is huge and weighs a ton. It has a roller set up on the right hand (opening) end on the ground which is still ok and has undoubtedly been replaced a few times over the years.
The main weight of the gate is supported in a channel with two support points, each with a double roller. Originally the flange that the rollers attach to was welded to the arm, but sometime very long ago the welds broke off when the cement below settled to a lower level. In the second photo you can see the remains of the original welded installation just under the present strapping.
As you can see a bit of MacGyver approach has been taken to support the gate and it works ok, though I have had to replace the sheet metal strapping every few years as it rusts and fatigues. Lately the roller assembly on the left has decided to twist and just drags and no amount of putting it straight accomplishes anything.
Inside the channel track are two roller assemblies and they really are completely shot. There are ball bearings in there, but with half of the balls missing. Even the wheels are getting worn out. Worse yet, I can see no way of disassembling things to replace the bearings, my initial preferred approach in spite of the worn wheels.
So, given I can't find any way to take the assembly apart I guess I'll have to find some means of duplicating it (times two).
I've put the calipers to things and here are the dimensions I get - in millimeters, though undoubtedly originally in inch units.
Wheel outer diameter - 47mm
Wheel width - 16mm - overall diameter of 40mm for the pair
Shaft diameter - 12mm
Bracket/flange - H - 72mm x W - 60mm x thickness - 5mm
So here is the question - where an how would anyone suggest I go about getting duplicate assemblies made? While I can see what is needed I really have no idea where to start.
Suggestions?