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CVO Technical => Twin Cam => Topic started by: BillH on November 25, 2014, 12:01:15 PM

Title: Koyo inner cam bearings
Post by: BillH on November 25, 2014, 12:01:15 PM

A little info for those that might care... Every time I've been in the cam chest of a twin cam, I've always installed Torrington bearings - just the accepted practice.  I'm replacing cams in my current 103, and when I opened the install kit that came with the new S&S 570's EZ start cams, the name KOYO was stamped on the bearings. I was going to order a couple of Torrington thinking that the KOYO's were Chinese junk, but out of curiosity, I googled KOYO and found that Torrington is now owned by KOYO! Same American product out of the same plant. So Torrington is now KOYO.

Title: Re: Koyo inner cam bearings
Post by: HILLSIDECYCLE.COM on November 25, 2014, 01:30:18 PM

Yep. :2vrolijk_21: :2vrolijk_21:
Scott

Title: Re: Koyo inner cam bearings
Post by: HD Street Performance on November 25, 2014, 01:38:16 PM

They called ina junk for bearings too. Not true.

Title: Re: Koyo inner cam bearings
Post by: INDEPENDENT_1 on November 25, 2014, 03:44:57 PM

Koyo bought Torrington quite some time ago. As Don stated, the INA is a good bearing as well so long as it's the full complement bearing. S&S uses both best I can tell. I've seen Koyo's in their cam install kits and INA's in their crate motors. Either is fine as long as they're full complement.

Title: Re: Koyo inner cam bearings
Post by: Ridgerunr on November 25, 2014, 04:58:23 PM

These days the bearings from Japan are the good stuff, compared to the Chinese junk.