split needle/roller bearings

roverman · May 29, 2014, 04:34:33 PM

I need 1" id., .7"-1.12" width , and up , no inner race, machined outer race, up to 1.75" max od. Evinrude uses split needle bearings, but I can't find adimensional chart. They will ride directly on the cams. Thanks, roverman.

quietone · May 29, 2014, 05:59:51 PM

Actually, Evinrude uses forged, heat treated rods with the big end i.d. ground and then fractured to remove the cap. Some have caged bearings, and some have a full complement of rollers. Some of the smaller engines could have rod journals in the 1" range, but you would have to make the outer races. I would think Torrington Bearings would have some openend cartridge bearings that would work.

DiDueColpi · May 29, 2014, 07:22:12 PM

No problem Art,
SKF part # B1612 1.000" id 1.1250" od 0.750" width.
SKF part # JL1612 1.000" id 1.2500" od 0.750" width.
SKF part # B1616 1.000" id 1.2500'' od 1.000" width
SKF part # JL1616 1.000" id 1.2500" od 1.000" width

All are drawn cup type bearings. B series are captured needles(no cage) JL are caged bearings.

Pretty common sizing, should be easy to round some up.

Cheers
Fred

roverman · May 29, 2014, 07:49:42 PM

Thanks Fred, The sizes are perfect. These are split-right ? Cheers, roverman.

DiDueColpi · May 29, 2014, 08:24:44 PM

Nope.
You aren't going to find a bearing like that with a split cup.
Sorry.
You could buy extras and have the cups lazer cut I suppose.
You would need two bearings for each completed split shell.
Offset cut to accommodate the missing material from the cut.

Fred

roverman · May 30, 2014, 11:38:39 AM

I "may" just wing-it. Buy 1 piece bearing, with powdered metal outer race, no inner race, grind a fracture notch, on side of race, "cryo",and fracture. Cage will likey distort/break, but what-if ?? roverman.

BlownMGB-V8 · May 30, 2014, 08:17:02 PM

Let us know...

roverman · June 12, 2014, 12:31:38 PM

I need liquid nitrogen, to "cryo" the bearings. Cameron Welding supply wants $482. to sell me a 5L. approved container, or they woun't sell me LN. I only need like 1L. ? Suggestions ? Thanks, roverman.

quietone · June 25, 2014, 07:17:04 PM

The engine manufacturers fracture at room temperature. Don't overthink it.

roverman · June 25, 2014, 07:31:31 PM

Larry, Is there a link to a video ? Thanks, roverman.