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NU308EG15 - SNR

NU308EG15

Single row cylindrical roller bearing, floating, separable, polyamide cage

In the cylindrical roller bearing range, the single row roller bearing withstands high radial loads. The standard ISO ranges (NU, N, NJ, NF, NUP, NH, RNU, HJ) are available with different types of cage, bore diameters, shoulder rings.

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Technical datasheet

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Specs

PRODUCT DIMENSIONS

Internal diameter (d) 40 mm
External diameter (D) 90 mm
Bearing/Inner ring width (B) 23 mm
Upper roller diameter E 80 mm
Under roller diameter F 52 mm
OR flange inner diameter D1 75,9 mm
Min fillet radius (rs) 1,5 mm
Min fillet radius r1s 1,5 mm
Radial clearance class CN
Mass 0,659 kg
Brand SNR
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PRODUCT PERFORMANCE

Dynamic load (C) 80,3 kN
Static load (C0) 78 kN
Fatigue limit load (Cu) 9,5 kN
Reference thermal speed (Nref) 7000 tr/min
Mechanical Limit Speed (Nlim) 9500 tr/min
Nlim (oil) 7600 tr/min
Nlim (grease) 6400 tr/min
Min operating temperature (Tmin) -20 °C
Max operating temperature (Tmax) 120 °C
Characteristic cage frequency, FTF 0,394 Hz
Characteristic rolling element frequency, BSF 4,502 Hz
Characteristic outer ring frequency, BPF0 4,727 Hz
Characteristic inner ring frequency, BPFI 7,273 Hz

ABUTMENT

Min shoulder diameter IR (da min) 48 mm
Small face shoulder max diameter da max 51 mm
Max shoulder diameter OR (Da max) 82 mm
Max fillet radius ra max 1,5 mm
Maxi fillet radius r1a 1,5 mm
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