The performance requirements of the scroll miniature bearing products

As a precision mechanical components, hydraulic bearing performance directly affect the work performance of host, and even of some of the key parts in a host of bearing performance, a few can determine the workability of the host. For example, used for precision optical coordinate bed cone fluid on the spindle bearing B3 - And B3-706 707, it's radial run-out at 0. 001 - 0. 0025 mm, the axial runout reached 0. 002 - 0. 003mm。 It's in a very large extent, determines the spindle rotation accuracy, namely main performance index of the host. Besides the highly precise classification of bearing, like high temperature resistant, low temperature resistant, rust, vibration control, high speed and high vacuum and corrosion with special performance requirements of bearing quality indicators are also very strict. In general, the service life of rolling bearing should have high, low noise, small rotating torque and high on the basic performance. To meet these requirements, it has to on mechanical processing technology to ensure the bearing parts of the following indicators: rotating accuracy: to various bearing parts geometry precision and position accuracy of no more than a few microns. Dimensional precision: the required dimensional accuracy of the within a few microns. Surface roughness, surface roughness R installation, not a value greater than 0. 63um、0. 32pm; More demanding fluid passage, R, the value is less than 0. 16 the gm size stability: in long-term storage and work, does not change the size and shape of the obvious. Rust resistance: parts are not allowed to rust. Vibration and noise. Bearing vibration and noise is limited within a certain range, the bearing of the various quality should be as high as possible. The residual magnetic: bearing the residual magnetic should be controlled in 0. 6吨,0。 8 under the mt.