The SH2861-5141 spec is here.
https://products.sanyodenki.com/en/s...2/SH2861-5141/
Sometimes the number might be for a slight variation (eg longer shaft or something)
With a Sanyo Denki, I would not worry too much about inductance. Just give it a decent voltage and it will fly! I have some 2 amp 60 mm (NEMA 24) motors and they are amazing. They do 40 m/min rapids and 0.8 G acceleration on my machine. But I am feeding them 90 volts.