CHANGING BEARINGS ON ST60 MAST HEAD UNIT

[GALAWA]

My Raymarine ST60 anemometer on masthead unit appears to be arthritic. It will not spin if apparent wind is less than 7 knots.
I would like to change its roller bearing.
I was unable to get the specs of these bearings from Raymarine, nor a quotation for such spare parts . They only offer complete masthead units for 400+ €

Can anyone tell me the specification of these bearings, and where to get them from ?

[SVTatia]

Originally Posted by GALAWA

My Raymarine ST60 anemometer on masthead unit appears to be arthritic. It will not spin if apparent wind is less than 7 knots.
I would like to change its roller bearing.
I was unable to get the specs of these bearings from Raymarine, nor a quotation for such spare parts . They only offer complete masthead units for 400+ €

Can anyone tell me the specification of these bearings, and where to get them from ?

I feel your pain... its a shame when there is something that can be fixed but they make it difficult so that we need to toss and buy a new one....

There may be some hope for you here:

"Instructions can be found on these forums somewhere - searching should yield results.

The bearings I bought from https://www.smbbearings.com/ - part number was S693ZZ (stainless 3x8x4 shielded) - I bought a pack of ten and it was £21 incl. shipping."

from

Raymarine ST60 anemometer bearings [Archive] - Yachting and Boating World Forums

[RaymondR]

Those small bearings are generally referred to as "technical bearings".