You have a successor to Sugino's low-end Maxy line, which first appeared ca. 1972, with a permanently mounted 52T outer ring (boo, hiss), a swaged spider (boo, hiss), and a solid spindle which took nuts, rather than bolts, at each end (boo, hiss).
I suppose I am not a fan ...
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069