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7200HG1UJ84 - SNR

7200HG1UJ84

High precision angular contact ball bearing, laminated resin cage centred on outer ring

In the ball bearing and high precision bearing ranges, the high precision angular contact ball bearing solves the maximum reliability constraints with increased performance in terms of rigidity, speed, capacity and precision. This bearing is recommended for demanding applications in terms of precision such as machine tool spindles. NTN-SNR is getting under ranges dedicated to requirements of speed, sealing, specific greasing, etc.

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Specs

PRODUCT DIMENSIONS

Internal diameter d 10 mm
External diameter D 30 mm
Bearing/Inner ring width(B) 9 mm
External diameter inner ring d1 16 mm
Inner diameter outer ring D1 24,45 mm
Inner diameter outer ring D2 26,09 mm
Charge load application point a 9 mm
Contact angle α 25 °
Min fillet radius rs 0,6 mm
Min fillet radius r1s 0,6 mm
Coefficient f0 12.745
Precision class P4
Mass 0,03 kg
Brand SNR
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PRODUCT PERFORMANCE

Dynamic load, C 7,2 kN
Static load, C0 3,55 kN
Fatigue limit load, Cu 0,21 kN
Axial displacement K Factor 1.05
Preload level 8
Preload value 0,18 kN
Axial rigidity 81 N/µm
Radial rigidity 158 N/µm
Min operating temperature, Tmin -30 °C
Max operating temperature, Tmax 120 °C
Nlim (oil) 73000 tr/min
Nlim (grease) 48000 tr/min
Characteristic cage frequency, FTF 0,374 Hz
Characteristic rolling element frequency, BSF 3,377 Hz
Characteristic outer ring frequency, BPF0 3,743 Hz
Characteristic inner ring frequency, BPFI 6,257 Hz

ABUTMENT

Min shoulder diameter IR da min 14,5 mm
Min IR shoulder diameter (db min) 14,5 mm
Max shoulder diameter OR Da max 25,5 mm
Max OR shoulder diameter (Db max) 25,5 mm
Maxi fillet radius r1a 0,6 mm
Max shaft & housing fillet radius ra max 0,6 mm
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