7021HVUJ84 - SNR High Precision Angular Contact Ball Bearing

  • £285.27


7021HVUJ84 bearing reference breakdown

Below we will break down the 7021HVUJ84 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
J84 - 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

70 - Extra Light Series
21 - 105mm Bore Size

d (mm) 105 D (mm) 160 B (mm) 26
d1 (mm) 122.8 D1 (mm) 142.2 D2 (mm) 149.84
a (mm) 44 rs min (mm) 2 r1s min (mm) 1
f0 16.2 Mass (kg) 1.59
da min (mm) 115 db min (mm) 115 Da max (mm) 150
Db max (mm) 150 r1a max (mm) 1 ra max (mm) 2
D6 (mm) 127.9
Dynamic load C (kN) 78 Static load C0 (kN) 81.4 Fatigue limit load Cu (kN) 4
Nlim (oil) (Tr/min) 12000 Nlim (grease) (Tr/min) 7900 Axial displacement K Factor 0.42
Preload level 8 Preload value (kN) 2.06 Axial rigidity (N/µm) 446
Radial rigidity (N/µm) 893 Min operating temperature Tmin (°C) -30 Max operating temperature Tmax (°C) 120
Characteristic cage frequency FTF (Hz) 0.45 Characteristic rolling element frequency BSF (Hz) 8.25 Characteristic outer ring frequency BPF0 (Hz) 9.81
Characteristic inner ring frequency BPFI (Hz) 12.19 Preload level 8

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