CB550 Main Bearings (again sorry)

[PennoK3]

Hi Guys, hope everyone is well and sane.  Apologies but its the main bearing issue again on my CB550 K3.

The cases are stamped CCBBB.

The only markings I can see on the crank look like Number 1, Capital letter A on each web.

Does the coding signify that I should have Brown, Brown, Green, Green, Green ?

I have five loose bearing halves and five still fitted in the upper crankcase half.   I have tried measuring the bearing thickness of the loose shells with a micrometer at each corner and they seem to vary between 1.44 and 1.54 mm but not sure if this dimension is relevant.   there is no sign of any colour coding on the shells.   They are all stamped DEL-A STD.

Any advice gratefully received.

[Bryanj]

You should have 5 numbers and 4 letters on the crank.

[PennoK3]

Thanks both.   Yes 5 numbers and 4 letters.

[Bryanj]

Good, letters are for big ends. Colours on shells rarely show up, its got to be 45 years worth of dirty oil and heat cycles, there is not a great difference between thickest and thinest shells so difficult to measure especially with any wear