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N.340.E.M.J30 - SNR

N.340.E.M.J30

Single row cylindrical roller bearing, floating, separable, brass 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) 200 mm
External diameter (D) 420 mm
Bearing/Inner ring width (B) 80 mm
Upper roller diameter E 370 mm
Under roller diameter F 258 mm
d1 279 mm
Min fillet radius (rs) 5 mm
Min fillet radius r1s 5 mm
Radial clearance class C3
Mass 57 kg
Brand SNR
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PRODUCT PERFORMANCE

Dynamic load (C) 1220 kN
Static load (C0) 1590 kN
Fatigue limit load (Cu) 138 kN
Reference thermal speed (Nref) 1200 tr/min
Mechanical Limit Speed (Nlim) 2400 tr/min
Nlim (oil) 1600 tr/min
Nlim (grease) 1300 tr/min
Min operating temperature (Tmin) -40 °C
Max operating temperature (Tmax) 120 °C
Characteristic cage frequency, FTF 0,411 Hz
Characteristic rolling element frequency, BSF 5,429 Hz
Characteristic outer ring frequency, BPF0 6,162 Hz
Characteristic inner ring frequency, BPFI 8,838 Hz

ABUTMENT

Min shoulder diameter IR (da min) 220 mm
Max shoulder diameter OR (Da max) 400 mm
Min shoulder diameter small face Db min 374 mm
Max N type OR GO diameter Dc max 365 mm
Max fillet radius ra max 4 mm
Maxi fillet radius r1a 4 mm
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