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NJ252 - NTN

NJ252

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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3D file

Technical datasheet

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Specs

PRODUCT DIMENSIONS

Internal diameter (d) 260 mm
External diameter (D) 480 mm
Bearing/Inner ring width (B) 80 mm
Upper roller diameter E 420 mm
Under roller diameter F 320 mm
d1 340 mm
Min fillet radius rNs 5 mm
Min fillet radius (rs) 5 mm
Radial clearance class CN
Brand NTN
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PRODUCT PERFORMANCE

Dynamic load (C) 1270 kN
Static load (C0) 1660 kN
Fatigue limit load (Cu) 137 kN
Nlim (oil) 1600 tr/min
Nlim (grease) 1300 tr/min

ABUTMENT

Min shoulder diameter IR (da min) 280 mm
Min NJ & N type IR GO diameter dc min 323 mm
Max shoulder diameter OR (Da max) 460 mm
Min shoulder diameter small face Db min 426 mm
Max fillet radius ra max 4 mm
Maxi fillet radius r1a 4 mm
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