4BT with NV4500 pilot bearing source

[driverswanted]

I'm looking for a pilot bearing to fit the 4bt flywheel and the 3/4" nv4500 pilot. Does anyone know of a source? Applied Industrial cannot help me. I need a bearing o. d. of 1. 653" and an I. D. slightly larger than the 3/4" pilot.

 

[RustyJC]

Just about any machine shop should be able to whip one out of Oilite bronze in a few minutes, I'd think.



Rusty

 

[BV]

For my Cummins/ZF 5sp combo, I had a Ford pilot bearing machined down to fit the Dodge flywheel. Have you tried calling a shop that only carries only bearings & seals?

 

[WM-300]

Pilot Source

I have a 1999 4BTA with a 1999 NV-4500 in my 1943 Carryall.

I got a Needle Bearing Pilot from NAPA. The NAPA number is

SCE 1211P less that $10 bucks. Dont know the actual size, just gave them the number on the old pilot and walla I got the new one no problem.



WM-300

 

[driverswanted]

Was thinking about making one from aluma-bronze or ampco-45.



BV- what were the dimensions your bearing started at? This is not a Dodge flywheel on my 4BT. It's the 12" on the GM bread truck.



WM-300- Is your's a GM flywheel that takes a 1. 653" o. d. bearing?

 

[WM-300]

Sorry, I mis read. Mine is a Dodge Flywheel sorry for the confusion.



WM-300

 

[BV]

The Ford uses a needle bearing that is pressed into a steel housing that measured over 1" and it was turned down to fit the Dodge flywheel that is around 3/4". I can dig up the specs if needed but it sounds like you need info for the GM fit.



You might give Peter at South Bend Clutch a call. I was about to order my Dodge Flywheel with Ford pilot already assembled from him but the shipping charges killed that idea.

 

[T. Baker]

If you have the GM flywheel and input shaft the bearing is an SKF 6302 2RSJEM 01I 04 from Applied Industrial Technologys. $13. 40. It was hell for me to figure that one out. It is 15mm id, 42mm od, 13mm width. I have no idea why it is in mm.

So there you go and you don't have to suffer like I did!

 

[driverswanted]

Thanks everyone. Bake, I Agree. They went to metric on this bearing. Only problem is that since I went to the NV4500 I have a metric outside and a English inside diameter. I took BV's advice and looked at the South Bend web site. They have a combination nylon 6/6 and Kevlar bushing that can be adapted. As soon as I saw this I knew it was my best choice. I knew something about Nylon 6/6 because I've replaced all the oilite bronze bushings at work with it. It's an amazing modified nylon series that's made now. The nylon ns or Nylatron NS has graphite additives that have a super lubricity that just dosn't wear out. Machine shafts just do not wear when you use this, even without grease. The diesel engine speeds and loads at the pilot bearing are well within the range of this material. I'm in charge of pharmaceutical machinery which cannot receive anything but the poor food grade lubricants that don't hold up to aggressive deionized water and Water for injection used in vial washing. Now I don't have to use any lubricant with Nylatron NS. The Kevlar adds more dimensional stability to an already great product. So I've ordered their 0. 750" I. D. by 1. 380" O. D. Nylon/Kevlar bushing. I'll sleeve it out to my 1. 56" flywheel. Just have to figure out how much the O. D. has to be to get a slightly compressed I. D. BTW this stuff is really expensive in rod stock sizes we need. it's a real good deal having to only pay $30 for one of these.

Thanks again everyone for you suggestions.

 

[South Bend Clutch]

driverswanted





I have designed these to need a . 008" press fit. This will shrink the inside hole to the proper size of . 750". Forgot to tell you that yesterday.



Peter

 

[driverswanted]

South Bend Clutch,



Is the adhesive critical when I glue the bearing to the sleeve and sleeve to flywheel?