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NF311 - NTN

NF311

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) 55 mm
External diameter (D) 120 mm
Bearing/Inner ring width (B) 29 mm
Upper roller diameter E 106,5 mm
Under roller diameter F 70,5 mm
d1 77,2 mm
Min fillet radius rNs 2 mm
Min fillet radius (rs) 2 mm
Radial clearance class CN
Brand NTN
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PRODUCT PERFORMANCE

Dynamic load (C) 123 kN
Static load (C0) 111 kN
Fatigue limit load (Cu) 13,6 kN
Nlim (oil) 7600 tr/min
Nlim (grease) 5300 tr/min

ABUTMENT

Min shoulder diameter IR (da min) 64 mm
Min NJ & N type IR GO diameter dc min 72 mm
Max shoulder diameter OR (Da max) 111 mm
Min shoulder diameter small face Db min 108,5 mm
Max fillet radius ra max 2 mm
Maxi fillet radius r1a 2 mm
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