SB 9 Leadscrew Bracket

[BobS]

I have just removed the right hand leadscrew bracket on my 1942 SB9C. The bearing seems to be very soft, does anyone know what material it should be?
Thanks
Bob

 

[10KPete]

Babbit metal.

 

[BobS]

I had never heard of it but Wikipedia tells me that it was used as a cast-in-place bulk bearing material. The Leadscrew scored the bearing a bit as it came out as it was quite well jammed in Any suggestions about any remedial work required.
Thanks
Bob

 

[10KPete]

Don't worry about small scratches and dings in that bearing. As long as the shaft is clean and smooth it won't tear up the bearing. That bearing can stand a lot of clearance, say .02-.03", before you need to worry about it.
Pete

 

[BobS]

Anyone know why it isn’t just plain brass bearing