Micrometer reading on front crank bearing

[Jcary85]

Anyone have a mic reading on the front of a 701 crank handy? I have a crank where the front bearing could slide off with light pressure. I’m trying to figure out if the crank needs to be welded and resurfaced or if the bearing is damaged/oversized. Thanks!

 

[Wetbuffalo]

Anyone have a mic reading on the front of a 701 crank handy? I have a crank where the front bearing could slide off with light pressure. I’m trying to figure out if the crank needs to be welded and resurfaced or if the bearing is damaged/oversized. Thanks!

What brand of bearing? Had my ADR one fall off by hand.

 

[Jcary85]

What brand of bearing? Had my ADR one fall off by hand.

it’s ADR on a PHP 10 mil crank. Maybe that’s just how they are?

 

[kevbo]

They can be a slip fit as long as the pin is hard enough.

 

[Jcary85]

They can be a slip fit as long as the pin is hard enough.

The pin? Like the locating pin?

 

[generaldisarray]

 

[Wetbuffalo]

it’s ADR on a PHP 10 mil crank. Maybe that’s just how they are?

In that case I’d check both. Most adr bearings I’ve seen come off by hand. I don’t have a measurement on hand.