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Single row cylindrical roller bearings

NJ2308 - NTN

NJ2308
NJ2308
NJ2308
NJ2308

Single row cylindrical roller bearing, single direction for axial loads, 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.

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter40 mm
D - External diameter90 mm
B - Bearing/Inner ring width33 mm
E - Upper roller diameter77,5 mm
F - Under roller diameter53,5 mm
d1 - IR flange outer diameter58,4 mm
rs - Min fillet radius1,5 mm
r1s - Min fillet radius1,5 mm
Radial clearance classCN
Mass1 kg
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PRODUCT PERFORMANCE
C - Dynamic load91,5 kN
C0 - Static load88 kN
Cu - Fatigue limit load10,7 kN
N lim - Oil lubrication limit speed8200 tr/min
N lim - Grease lubrication limit speed7000 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR48 mm
da max - Small face shoulder max diameter51 mm
dc min - Min inner ring GO diameter60 mm
Da max - Max shoulder diameter OR82 mm
ra max - Max fillet radius1,5 mm
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