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NJ221EG15 - SNR

NJ221EG15

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) 105 mm
External diameter (D) 190 mm
Bearing/Inner ring width (B) 36 mm
Upper roller diameter E 171,5 mm
Under roller diameter F 125,5 mm
d1 134,5 mm
OR flange inner diameter D1 165,1 mm
Min fillet radius (rs) 2,1 mm
Min fillet radius r1s 2,1 mm
Radial clearance class CN
Mass 3,75 kg
Brand SNR
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PRODUCT PERFORMANCE

Dynamic load (C) 263 kN
Static load (C0) 323 kN
Fatigue limit load (Cu) 35 kN
Reference thermal speed (Nref) 3400 tr/min
Mechanical Limit Speed (Nlim) 4300 tr/min
Nlim (oil) 3600 tr/min
Nlim (grease) 3000 tr/min
Min operating temperature (Tmin) -20 °C
Max operating temperature (Tmax) 120 °C
Characteristic cage frequency, FTF 0,423 Hz
Characteristic rolling element frequency, BSF 6,302 Hz
Characteristic outer ring frequency, BPF0 7,184 Hz
Characteristic inner ring frequency, BPFI 9,817 Hz

ABUTMENT

Min shoulder diameter IR (da min) 116 mm
Small face shoulder max diameter da max 124 mm
db min 129 mm
Min NJ & N type IR GO diameter dc min 137 mm
Max shoulder diameter OR (Da max) 179 mm
Max fillet radius ra max 2 mm
Maxi fillet radius r1a 2 mm
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