Bearing replacement NSK 6205 UR

[Guineafowl]

This is from an old Kubota B1550 front axle, top kingpin bearing I think you’d call it.

I can’t find what the UR suffix means. Any ideas?

 

[Porkypine]

I'd contact 'Simply Bearings', I've had various odd bearings from them in the past and all good, I'm sure they'd assist in ID-ing what you need

 

[MetalMonkey]

I believe it is a special heat treatment process NSK can do for extra long life.

 

[Agroshield]

See:

Ultra-long-life Ball Bearings for Transmissions

NSK Ultra-long-life Ball Bearing helps prevent surface flaking. The bearing life is increased by up to 3 times, in comparison with conventional bearings, and up to 10 times when used in combination with NSK’s proprietary long-life ring heat-treatment technology (UR, HTF).

www.nsk.com

If you see an acronym or proprietary reference in conjunction with a manufacturer's product, a quick google of the two items will often produce satisfaction.

 

[Guineafowl]

Cheers, I did google the code, but nothing came up. Simply Bearings didn’t know what it was, either!