Need Help!- Fanuc motor numbering

[dango]

my motor number is A06B-0127-B077
I got offer for A06B-0127-B577
could someone explain me the diffrence
and the last 4 number what it mean

[Al_The_Man]

Same motor/encoder except B577 has taper shaft.
Al.

[cnc2149]

Actually, with this particular motor, the standard shaft is taper. Here is the decoding for this one. It does not apply to all FANUC alpha servo motors.

A06B-0127-Bxyy

X : 0 (taper shaft -- standard)
X : 1 (tapers shaft with brake)
X : 5 (straight shaft)
X : 6 (straight shaft with brake)

YY: 75 (pulse coder alpha A64)
YY: 77 (pulse coder alpha I64)
YY: 88 (pulse coder alpha A 1000)

Note: There is often a suffix after the the -Bxyy which can call for straight shaft with key, IP67, special bearings, etc. Too many to list.

[dango]

thank you very much for the help

[Al_The_Man]

Originally Posted by Al_The_Man Same motor/encoder except B577 has taper shaft. Al.

For some reason I read it backwards.
Al.