Back

71903CVUJ74 - SNR

71903CVUJ74

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.

Downloads

CAD file

Technical datasheet

PLEASE LOGIN to add products to your basket
Contact us
Specs

PRODUCT DIMENSIONS

Internal diameter (d) 17 mm
External diameter (D) 30 mm
Bearing/Inner ring width (B) 7 mm
External diameter inner ring d1 21 mm
Inner diameter outer ring (D1) 26,6 mm
Inner diameter outer ring D2 28,22 mm
Charge load application point a 7 mm
Contact angle α 15 °
Min fillet radius (rs) 0,3 mm
Min fillet radius r1s 0,3 mm
Coefficient f0 12.709
Precision class P4
Mass 0,017 kg
Brand SNR
Product classification image

PRODUCT PERFORMANCE

Dynamic load (C) 4,7 kN
Static load (C0) 2,7 kN
Fatigue limit load (Cu) 0,16 kN
Axial displacement K Factor 2.12
Preload level 7
Preload value 25000 kN
Axial rigidity 20 N/µm
Radial rigidity 117 N/µm
Min operating temperature (Tmin) -30 °C
Max operating temperature (Tmax) 120 °C
Nlim (oil) 74000 tr/min
Nlim (grease) 49000 tr/min
Characteristic cage frequency, FTF 0,419 Hz
Characteristic rolling element frequency, BSF 5,841 Hz
Characteristic outer ring frequency, BPF0 5,872 Hz
Characteristic inner ring frequency, BPFI 8,128 Hz

ABUTMENT

Min shoulder diameter IR (da min) 19,5 mm
Min IR shoulder diameter (db min) 19,5 mm
Max shoulder diameter OR (Da max) 27,5 mm
Max OR shoulder diameter (Db max) 27,5 mm
Maxi fillet radius r1a 0,3 mm
Max shaft & housing fillet radius (ra max) 0,3 mm
Product classification image
Calcul factors image