Description
Harmonic 4B No.2 is a mineral-based lithium soap grease (NLGI grade 2) optimized for strain wave (harmonic) reducers. It is the manufacturer-recommended lubricant for the J6 wrist axis of small FANUC robots (LR Mate, M-10, M-20) as well as for the harmonic reducers of compact and SCARA platforms. Its NLGI 2 consistency prevents leaks at the wrist seals while maintaining low friction at the flexspline / circular spline contact. A standard maintenance item for wrist regreasing during scheduled overhauls.
Specifications
- Manufacturer: Harmonic Drive Systems / Kyodo Yushi
- FANUC part number: A98L-0040-0230
- Applications: J6 wrist harmonic reducers on LR Mate 200iD, M-10 and M-20iA; SR-series SCARA; low-payload robots