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Service Life Estimation

Bearing data

Material

Design type

Bore diameter d [mm]

Outside diameter D [mm]

Material thickness H [mm]

Bearing width B [mm]

Designation

Detailed product data

Number of bearings [pcs]

Operating data

Dynamic load (radial) F_r [N]

Dynamic load (axial) F_a [N]

Motion

Rotation

Oscillation

Axial motion

Rotation data

Rotation speed [rpm]

Oscillation data

Oscillation angle ß [°]

Oszillation frequency f [min^-1]

Axial motion data

Sliding velocity [m/s]

Continuous operation temperature [°C]

Type of load

Point load

Circumferential load

Roughness R_a [µm] according to ISO 4288

Attention

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Calculation pv value

Radial load

Dynamic load capacity C_rad [N]

Specific load characteristic value K_rad [MPa]

Specific load p_rad [MPa]

Sliding velocity v_rad [m/s]

p×v_rad

pv areas of application under dry condition

pv areas of application

Attention

Axial load

Dynamic load capacity C_axi [N]

Specific load characteristic value K_axi [MPa]

Specific load p_axi [MPa]

Sliding velocity v_axi [m/s]

p×v_axi

pv areas of application under dry condition

pv areas of application

Attention

Calculation of nominal service life

Radial load

Constant depending on material and bearing type K_M-rad

Exponent n_rad

Load factor c_1-rad

Velocity factor c_2-rad

Temperature factor c_3-rad

Roughness factor c_4-rad

Load distribution factor c_5-rad

Nominal service life G_h-rad [h]

Axial load

Constant depending on material and bearing type K_M-axi

Exponent n_axi

Load factor c_1-axi

Velocity factor c_2-axi

Temperature factor c_3-axi

Roughness factor c_4-axi

Load distribution factor c_5-axi

Nominal service life G_h-axi [h]

Nominal service life G_h [h]

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Service Life Estimation

Bearing data

Operating data

Attention

Calculation pv value

Radial load

Attention

Axial load

Attention

Calculation of nominal service life

Radial load

Axial load