NEMA 56C

NEMA 56C Face diagram

face or flange mount, also known as bearingless or pancake encoder, is a 4.5" flange with (4) bolts located in a 5.88" circle. Originally designed as the standard for mounting solid shaft, coupled tachometers on flange adapters, the NEMA 56C is also a standard for mounting modular encoders. Avtron M56 THIN-LINE encoders mount on NEMA 56C faces. Marathon Blue Max and Black Max AC motors feature a NEMA 56C face on the non-drive end.
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