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NJ2218EG15 - SNR

NJ2218EG15

Single row cylindrical roller bearing, single direction for axial loads, 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) 90 mm
External diameter (D) 160 mm
Bearing/Inner ring width (B) 40 mm
Upper roller diameter E 145 mm
Under roller diameter F 107 mm
d1 114,3 mm
OR flange inner diameter D1 139,7 mm
Min fillet radius (rs) 2 mm
Min fillet radius r1s 2 mm
Radial clearance class CN
Mass 3,23 kg
Brand SNR
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PRODUCT PERFORMANCE

Dynamic load (C) 249 kN
Static load (C0) 326 kN
Fatigue limit load (Cu) 37,1 kN
Reference thermal speed (Nref) 3200 tr/min
Mechanical Limit Speed (Nlim) 5100 tr/min
Nlim (oil) 4200 tr/min
Nlim (grease) 3500 tr/min
Min operating temperature (Tmin) -20 °C
Max operating temperature (Tmax) 120 °C
Characteristic cage frequency, FTF 0,425 Hz
Characteristic rolling element frequency, BSF 6,481 Hz
Characteristic outer ring frequency, BPF0 7,218 Hz
Characteristic inner ring frequency, BPFI 9,782 Hz

ABUTMENT

Min shoulder diameter IR (da min) 99 mm
Small face shoulder max diameter da max 105 mm
db min 109 mm
Min NJ & N type IR GO diameter dc min 116 mm
Max shoulder diameter OR (Da max) 151 mm
Max fillet radius ra max 2 mm
Maxi fillet radius r1a 2 mm
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