I am looking for : References Interchanges
Back

7209CG1UJ74 - SNR

7209CG1UJ74

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 45 mm
External diameter D 85 mm
Bearing/Inner ring width(B) 19 mm
External diameter inner ring d1 57,4 mm
Inner diameter outer ring D1 72,45 mm
Inner diameter outer ring D2 78,97 mm
Charge load application point a 18 mm
Contact angle α 15 °
Min fillet radius rs 1,1 mm
Min fillet radius r1s 0,6 mm
Coefficient f0 14.234
Precision class P4
Mass 0,416 kg
Brand SNR
Product classification image

PRODUCT PERFORMANCE

Dynamic load, C 42,9 kN
Static load, C0 31 kN
Fatigue limit load, Cu 1,67 kN
Axial displacement K Factor 1.27
Preload level 7
Preload value 0,23 kN
Axial rigidity 70 N/µm
Radial rigidity 396 N/µm
Min operating temperature, Tmin -30 °C
Max operating temperature, Tmax 120 °C
Nlim (oil) 25000 tr/min
Nlim (grease) 16000 tr/min
Characteristic cage frequency, FTF 0,406 Hz
Characteristic rolling element frequency, BSF 4,936 Hz
Characteristic outer ring frequency, BPF0 5,679 Hz
Characteristic inner ring frequency, BPFI 8,321 Hz

ABUTMENT

Min shoulder diameter IR da min 52 mm
Min IR shoulder diameter (db min) 52 mm
Max shoulder diameter OR Da max 78 mm
Max OR shoulder diameter (Db max) 78 mm
Maxi fillet radius r1a 0,6 mm
Max shaft & housing fillet radius ra max 1 mm
Product classification image
Calcul factors image