Description
Brand - FAG
Item Number - NNU4918-S-K-M-SP FAG
Category - Super Precision Cylindrical Roller Bearing Double Row
Inner Diameter (d) mm - 90
Outer Diameter (D) mm - 125
Width (B) mm - 35
Weight (m) kg - 1.26
Minimum Chamfer Dimension (r1 min) mm - 1.1
Raceway Diameter Inner Ring (F) mm - 101.5
Width of Lubricating Groove (ns) mm - 4.8
Diameter Lubrication Hole (ds) mm - 3.2
Axial Displacement (s) mm - 2
Diameter of Housing Shoulder Tolerance - H12
Diameter of Housing Shoulder (da) mm - 101
Diameter Shaft Shoulder Tolerance - h12
Diameter of Shaft Shoulder (Da) mm - 116
Maximum Recess Radius (ra1) mm - 1.1
Basic Dynamic Radial Load Rating (Cr) N - 93000
Basic Static Radial Load Rating (C0r) N - 176000
Limiting Speed for Grease Lubrication (nG grease) 1/min - 6000
Limiting Speed for Oil Lubrication (nG oil) 1/min - 7000
Radial Spring Rigidity (cr) N/µm - 2420
Description of Suffixes:
S - Lubrication Groove and Lubrication Holes in Outer Ring (Series NN30)
K - Lubrication Groove and Lubrication Holes in Outer Ring
M - Brass Cage, Guided by Rollers
SP - Special Precision
** Images are for representation purposes only