71948HVUJ74 - SNR High Precision Angular Contact Ball Bearing

  • £1,740.98


71948HVUJ74 bearing reference breakdown

Below we will break down the 71948HVUJ74 bearing reference and provide an explanation for each section provided it can actually be broken down. We can split it into 3 parts the prefix, suffix and body of the item code.

The suffix can be found at the end of the bearing number:

Suffix

U - Universal Single Bearing
H - 25° Contact Angle
V - Laminated Phenolic Cage Centered On Outer Ring
J74 - Which indicates preloads (Light, Medium, Heavy) for standard range

The body of the bearing reference is what is left after removing the suffix and the prefix:

Body

719 - Extremely Light Series
48 - 240mm Bore Size

d (mm) 240 D (mm) 320 B (mm) 38
d1 (mm) 266.7 D1 (mm) 293.33 D2 (mm) 304.97
a (mm) 84 rs min (mm) 2.1 r1s min (mm) 1
f0 17.08 Mass (kg) 7.27
da min (mm) 252 db min (mm) 252 Da max (mm) 308
Db max (mm) 314.5 r1a max (mm) 1 ra max (mm) 2
D6 (mm) 272
Dynamic load C (kN) 171 Static load C0 (kN) 252 Fatigue limit load Cu (kN) 8.5
Nlim (oil) (Tr/min) 5700 Nlim (grease) (Tr/min) 3800 Axial displacement K Factor 0.29
Preload level 7 Preload value (kN) 2.85 Axial rigidity (N/µm) 706
Radial rigidity (N/µm) 1486 Min operating temperature Tmin (°C) -30 Max operating temperature Tmax (°C) 120
Characteristic cage frequency FTF (Hz) 0.46 Characteristic rolling element frequency BSF (Hz) 12.53 Characteristic outer ring frequency BPF0 (Hz) 15.31
Characteristic inner ring frequency BPFI (Hz) 17.69 Preload level 7

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