The Bench OP
THREAD STARTER · NANJING BENCH
The LX-3 takes three belts, and the listings that just say "fits Nakamichi" are why half of these come to my bench twice. Measured off the original parts, these are the sizes that work:
CAPSTAN DRIVEFLAT · 52.0 MM × 2.5
TAKE-UPFLAT · 96.5 MM × 2.0
COUNTERSQUARE · 45.0 MM × 1.0
The 96.5 take-up is the one that trips people up — the commonly sold 97 mm square belt rides the pulley crown and slips cold. Ask your supplier for flat, and measure before you pay.