36 www.jbj.co.uk/hydraulic-motors.html #DriveLineHarmony LSHT Hydraulic Motors AE40 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 = 7.0 kN Gap: X = 15mm Wanted: Service life radial bearing Graph to determine service life of radial bearing: Pressure difference: Δp = 250 bar Speed n = 200 rpm To determine service life of bearing, use radial loadF = 7.0 kNand gapX = 15mm in order to find intercept point S1. By using r S1, draw a vertical line to pressure curves Δp = 250 bar. From this, intercept point S2 can be determined. By drawing a horizontal line to speed curven = 200 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. 4,400 hours.
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