OMT ND43 hub for motor-to-pump couplings. Versions with 11 mm bore (ND43D) and for group 1 pumps (ND43PU1P).
OMT ND43 series hubs (half couplings) for the aluminium coupling with flexible spider, used to connect a small electric motor to a pump inside the bellhousing.
The complete coupling has both hubs and the spider; choose the hub for the side you need to replace.
Source: OMT, Componenti IT-EN, p.24.
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