Heroes: recently encountered a problem in the vertical axis fan, the 1.5 MW fan with slewing bearing, slewing support will rotate at 20-30 RPM rpm, the bearing is about 4.7M. There is a weakness in the domestic support of the slewing ring, that is, there is a hardening soft belt. Long term running results in soft belt wear. What's the solution?
Hardness of general raceway hardening: 55-60HRC, hardness of soft band: about HB300. I don't know what your vertical axis fan is. You can stick it up and have a look.
The rotary supporting foreign and quenching soft belt, and the same wish because of domestic, probably a roller size, general processing methods: quenching soft belt on radial load direction 90 DEG, prevent the quenching soft belt by the main load.
general processing methods: quenching soft belt on radial load direction 90 DEG, prevent the quenching soft belt by the main load. Hardness of general raceway hardening: 55-60HRC, hardness of soft band: about HB300. I don't know what your vertical axis fan is. You can stick it up and have a look.
