SCM T130 bearing change

[Tom Yaegle]

Has any one here done one? Looking for suggestions, thanks.

[Bill Dufour]

If we knew what kind of machine it is we might offer advice based on similar machines we have worked on. Is this similar to the Grob 120TP which uses very high speed bearings.
Bill D

[Jerry Bruette]

I Googled the machine parts break down. It looks like you'll be dealing with a deep groove ball bearing on one end and a angular contact bearing on the other end.

All the spindles I've rebuilt with a angular contact bearing have to have the clearance set. It's not hard to do, if you've done it before. If you don't have any experience doing that maybe you can hire it out.

It's an easy job if you have the proper tools and shop to do it.

[Jim Becker]

If we knew what kind of machine it is we might offer advice based on similar machines we have worked on. Is this similar to the Grob 120TP which uses very high speed bearings.
Bill D
It's an early 2000s SCM T130 shaper. Google is your friend...

[Jared Sankovich]

Has any one here done one? Looking for suggestions, thanks.

A couple people have
https://www.sawmillcreek.org/showthread.php?47621

[Bill Dufour]

It's an early 2000s SCM T130 shaper. Google is your friend...
My goggle came up with a Grob T120tp plane. I do not think it is the same Grob still making bandsaws in Wisconsin. Unlike many here I donot really know any tools by model number.
I have noticed Tesla never seems to put a model number on their cars. Ford puts the model in letters six inches tall on the tailgate of their trucks.
Bill D.
I do like my BMC 7"

[Jim Becker]

My goggle came up with a Grob T120tp plane.
Not sure why that would happen if you put "SCM T130" in the search. Nice plane, for sure, however. :D

[Bill Dufour]

Not sure why that would happen if you put "SCM T130" in the search. Nice plane, for sure, however. :D
I probably typed t120 instead of t130? It does have a single spindle. Kind of hard to replace the blade.
BilL D

[Tom Yaegle]

Jerry, I have not found a good parts break down with google?

Jared, I read that but have not found any good info, just that they changed theirs.

[Jim Becker]

I probably typed t120 instead of t130? It does have a single spindle. Kind of hard to replace the blade.
BilL D
You can't leave off the "SCM" from the search...it's conceivable that many companies might have "things they make" that use the same or similar identifiers, especially when numbers are involved. SCM is the manufacturer of the machine the OP is asking about, so including that in the search targets the results.

[Jim Becker]

Jerry, I have not found a good parts break down with google?

Tom, have you tried Parts Pronto which is part of the SCM website? You have to register, but that's the parts and manuals part of the company.

[Tom Yaegle]

Jim, I will try there. The T130 does not have a serial # tag on it but will try there with out the #s and see. Thanks

[Tom Yaegle]

Trying to get the nut off holding the pulley. It is not a hex but round with 4 slots on it. Thinking I need to make a socket or has anyone found one to match?

[Bill Dufour]

Flat pin wrench. Doc you have one for a an angle grinder? Or make one from a piece of angle iron and two hardened allen head set screws with nuts to match. You will need to drill the two allen size holes and maybe a large axle clearance hole in between them.
BilL D.
This horrible fright version is probably too short for enough leverage to work. It will probably bend as well.
https://www.harborfreight.com/adjustable-pin-wrench-36554.html?utm_source=google&utm_medium=cpc&utm_campaign=17890471891&campaignid=17890471891&utm_content=146321459224&adsetid=146321459224&product=36554&store=16&gad_source=1&gclid=Cj0KCQjw_-GxBhC1ARIsADGgDjsvYmg5UHKS1HkEp3WtRdXV-qavL5npxe5zpDSQwwS9Oapr5KmeUVIaAkoBEALw_wcB

[Bill Dufour]

If the slots go clear to the rim then a hook wrench might work. If you have the correct size the solid type shown are better then the hinged ones.

Regardless of what type of wrench it may be easier if the wrench is so long the handle is beyond the wheel rim in free air where your hand can grip it all around. If the sheet metal guarding allows that.
Bill D.

[Bill Dufour]

I have seen sockets for sale that might work. I think they are designed to remove four wheel drive axle nuts. they look like a giant drag link socket with the middle part ground off.
Actually I made something for a similar job. The rear sprocket set on my bicycle was held on by a slotted nut. I took a short piece of water pipe and hack sawed filed two lugs on one end.
Be careful I have no idea if it may be left hand thread?
Bill D.
Freewheel removal tool for bicycles
https://www.amazon.com/Mdvora-Coilover-Spanner-Suspension-Adjustment/dp/B0C5BQLDHZ/ref=asc_df_B0C5BQLDHZ/?tag=hyprod-20&linkCode=df0&hvadid=693363057790&hvpos=&hvnetw=g&hvrand=10344028979045432790&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=1014019&hvtargid=pla-2198961693802&mcid=92770d6f73ec33989ca9b99b535dba97&gad_source=1&gclid=Cj0KCQjw_-GxBhC1ARIsADGgDjvtNTOcrWpt0KhByym80JqhwAxnbO7_yJc1 0waV9G9UFzAUca8MkjIaAskjEALw_wcB&th=1
4x4 axle nut sockets
https://www.amazon.com/dp/B0C5R95N47/ref=sspa_dk_hqp_detail_aax_0?psc=1&sp_csd=d2lkZ2V0TmFtZT1zcF9ocXBfc2hhcmVk

[Jerry Bruette]

Hi Tom,
Been busy in the shop all day or I would have sent info sooner.
What you're looking for is a adjustable hook spanner. Here's a link to them at McMaster-Carr. https://www.mcmaster.com/products/hook-wrenches/spanner-wrench-adjustability~adjustable/.

If you don't want to spend the money for a one time tool you can grind a cold chisel to the following profile and use that. You'd put the chisel in the slot and hit it with a ballpein hammer in the direction needed to tighten or loosen the nut. If the nut has a lock washer with a tab, you should replace the lock washer when reassembling the spindle. I've seen washers that were reused break during operation of the machine. Then you'll have a real mess on your hands. You should also put a little grease or oil on the washer when reassembling, it prevents the nut from grabbing the washer and twisting it. Sorry I didn't get this to you earlier.

519416 519417

[Tom Yaegle]

Bill, I have the sockets for Fords. They are to big, will check auto part to see if there are smaller ones that may work.

Jerry, This nut is up in the spindle pulley so I think I am stuck making or buying a socket. I was not thinking of a washer tab so will check, thanks.

I am not sure if left or right hand thread. Will try squeezing my head up in there to see.

[Jerry Bruette]

You'll be looking for a axial lock nut socket. You'll have to determine the size nut. They have a numerical designation, smaller nuts have lower numbers and larger nuts have bigger numbers. You can find the dimensions in a Machinists Handbook, metric and sae. If you can't find a Machinists Handbook but can get some dimensions from the nut I can look it up in my copy of the handbook.

How much shaft is sticking out of the nut? You may need a deep well version.

[Tom Yaegle]

Here is what I am looking at, 519442It is right hand thread and 1.730 or so inside socket dimension.

[Brian Holcombe]

Wow, it's not common to see a nut requiring a hook spanner to be used inside of something.

They sell sockets for this, but I think they won't work because you need to hold the end of the spindle also. They probably have a tube socket for this application.

Personally, I would try to drive it off with a chisel, then replace it with a similar style nut (high grade with a nylock insert) that has flats instead.

Keep in mid, everything on a relatively modern European machine is going to be in Metric.

[Jerry Bruette]

I agree with Brian. Get a long enough chisel and you can get that nut off, it's not too far in the cartridge.

Can you remove the spindle cartridge from the machine so you can work standing at the bench?

I doubt if you'll be able to find a hex nut in the proper thread pitch.

[Bill Dufour]

Looks like you need something similar to a crowsfoot wrench down there.
Bill D.

[Jerry Bruette]

Just going from the O.D. you provided here's a link to the McMaster list of SAE and metric locknuts.

https://www.mcmaster.com/products/spindle-nuts/bearing-nuts~/

Looks like the closest SAE would be a N-06 nut. And the metric would be M-26 or M-30 depending if the face is stepped or chamfered.

The spanner sockets are also listed to the far right on the chart. That chisel method is looking way more economic. Don't be afraid of using the chisel I've used that method of loosening and tightening spindle nuts for 30 years.

[Bill Dufour]

I would buy and use. a pair of cheap needle nose pliers before going for too much hammering. Grind the tips to fit the slots on end. Use a big crescent wrench or pipe clamp to turn the handles.
Use a drill bit to figure the slot width.
Bill D

[Bill Dufour]

Get a hardened nut that will slip over the shaft. Grind away most of one end to leave two little ears to fit the slots. Use a socket to turn the nut. Fill the socket with paper towel so you are pushing the modified nut firmly onto the slotted fastener.
I have a lathe so I would get a solid round of iron or a thick washer and drill a clearance hole lengthwise. Then I would drill and tap for two screws to engage the slots. A washer I would weld on some pipe for a top hat look.
BilL D

[Tom Yaegle]

Thanks for ALL the ideas. My first attempt failed, it is 8pm and I quit for the day. I took a 2" socket and welded 3/16" key stock inside in 4 places. I knew better than try a impact gun, but the machine is on a hoist so I can stand under it. I did not want to lower and put the spindle on and a wrench on the spindle. The key stock was to hard and sheared of not sure where it came from. Will sleep on it.

[Warren Lake]

can you turn the machine upside down to work on that.

[Tom Yaegle]

Warren, I could turn it over. It has a slider that would have to come off also.

SUCCESS,519496519497519498519499519500It was a pain in the hiney. 3' bar to get loose, but it is out. Thanks all.

[Warren Lake]

wow thats quite the adventure but you got it. After asking upside down then I though the spindle will turn. See you solved that as well, nice idea. I have the same machine. Needed bearings when I got it but needing bearings is not instantly often and it works excellent as it is.

[Brian Holcombe]

Nice work, Tom!

I think Jerry is right, the thread pitch is likely finer than a normal coarse or fine hex nut.

[Jerry Bruette]

Glad to see you got the nut off, and the spindle cartridge out.
Picture of the nut is a little blurry, is that a nyloc nut or is there some type of thread retainer?

[Tom Yaegle]

Jerry, It is a nyloc nut.

For the rest of you SCM shaper owners you may want to check for a grease cup. Fill cup with grease and tighten up now and then I guess. Note hole at 12 o clock position.519515 Cup is in cabinet to left rear side.