13 www.jbj.co.uk/hydraulic-motors.html #DriveLineHarmony LSHT Hydraulic Motors AE4 Series Characteristics Graphs 2 All parameters at u = 32 mm /s; Θ = 40°C; outlet = pressureless Life expectancy-nomogram of drive shaft faceing radial bearing x F r Given: Radial load: Fr = 0,5 kN Gap: X = 18mm Pressure difference: Δp = 150 bar To determine service life of bearing, use radial loadF = 0.5 kNand gapX = 18mm in order to find intercept point S1. By using r S1, draw a vertical line to pressure curves Δp = 150 bar. From this, intercept point S2 can be determined. By drawing a horizontal line to speed curven = 1000 rpm, intercept point S3 is found. By drawing a vertical line fromS3 to the x-axis, you can determine the service life of the bearingLh10by approx. 14,500 hours. Graph to determine service life of radial bearing: Wanted: Service life radial bearing Speed n = 1000 rpm
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