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Double-row self-aligning ball bearings

2318SK - NTN

2318SK

Self-aligning ball bearing, pressed steel cage, tapered bore, open

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter90 mm
D - External diameter190 mm
B - Bearing/Inner ring width64 mm
rs - Min fillet radius3 mm
Associated sleeve referenceH2318X
Radial clearance classCN
Precision classP0
Mass7,75 kg
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PRODUCT PERFORMANCE
C - Dynamic load154 kN
C0 - Static load57,5 kN
Cu - Fatigue limit load2,4 kN
e - Coefficient0.38
Y0 - Static axial load coefficient1.7
Y1 - Lower axial load coefficient1.7
Y2 - Upper axial load coefficient2.6
N lim - Oil lubrication limit speed3600 tr/min
N lim - Grease lubrication limit speed2800 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR103 mm
da max - Max shoulder diameter IR117 mm
db - Min diameter for Sleeve99 mm
Ce - Min length fro Sleeve6 mm
Da max - Max shoulder diameter OR177 mm
ra max - Max shaft & housing fillet radius2,5 mm
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