MATHEMATICAL MODEL OF DIAGNOSTIC BEARING ASSEMBLY OF HUB OF STEERING AXLES OF WHEEL TRACTORS OF DRIVING CLASS 1,4

The machine-tractor fleet of enterprises is an important link in the production products various branches industry Ukraine. timely performance transport, agricultural, road construction and other works, ultimately cost or services, largely depend on its effective work. Rolling bearings are one most common technical devices used machines. They determine reliability devices. resource tractor chassis mainly determined by rolling bearings. Defects manufacture operation affect vibration signal different ways have diagnostic signs. This makes it possible to identify defects at stage their occurrence predict further development. In this work, method vibrational non-destructive testing considered when diagnosing bearing assemblies hubs steered axles wheeled tractors traction class 1.4. mathematical model developed authors for units 1.4 aimed determining condition allows predicting service life. you clearances bearings, frequencies average value deformation caused load depending frequency rotation separator inner ring bearing, initial contact angle rollers radius seat roller, diameter curvature bearing. An equation was created unbalance hub seating clearance