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N208 - NTN

N208

Single row cylindrical roller bearing, floating, separable, pressed steel 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 80 mm
Bearing/Inner ring width(B) 18 mm
Upper roller diameter E 70 mm
Under roller diameter F 50 mm
d1 54,2 mm
Min fillet radius rs 1,1 mm
Min fillet radius r1s 1,1 mm
Radial clearance class CN
Mass 0,37 kg
Brand NTN
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PRODUCT PERFORMANCE

Dynamic load, C 48,5 kN
Static load, C0 43 kN
Fatigue limit load, Cu 5,25 kN
Nlim (oil) 11000 tr/min
Nlim (grease) 9400 tr/min
Min operating temperature, Tmin -40 °C
Max operating temperature, Tmax 120 °C
Characteristic cage frequency, FTF 0,417 Hz
Characteristic rolling element frequency, BSF 5,833 Hz
Characteristic outer ring frequency, BPF0 5,417 Hz
Characteristic inner ring frequency, BPFI 7,583 Hz

ABUTMENT

Min shoulder diameter IR da min 46,5 mm
Max shoulder diameter OR Da max 73,5 mm
Min shoulder diameter small face Db min 71 mm
Max N type OR GO diameter Dc max 68 mm
Max fillet radius ra max 1 mm
Maxi fillet radius r1a 1 mm
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