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A = n dm [mm/min]; bf = bearing factor dependent on bearing type and load conditions (table 1); dm = bearing mean diameter [mm] = 0,5 (d + D); n = rotational
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the operating temperature [°C]; the speed factor A = n dm where. A = speed factor [mm/min] n = rotational speed [r/min] dm = bearing mean diameter [mm] (table
Table 1 Structure and characteristics of double row tapered roller bearings. Fig.1. Fig.2. E .. M263349D/M263310+A. TDI B-163 .. d 100∼120mm. T. C. φD. B.
The frictional moment of drag losses for ball bearings can be estimated using dm, = bearing mean diameter [mm]. = 0,5 (d + D). d, = bearing bore diameter
When SKF high-capacity cylidrical roller bearings are grease lubricated dm, = bearing mean diameter [mm] = 0,5 (d + D). n, = rotational speed [r/min]
The rated viscosity ν1, required for adequate lubrication, can be determined from diagram 1, using the bearing mean diameter dm = (D + d)/2, mm, and the
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