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Double-row self-aligning ball bearings

1209S - NTN

1209S

Self-aligning ball bearing, pressed steel cage, open

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter45 mm
D - External diameter85 mm
B - Bearing/Inner ring width19 mm
rs - Min fillet radius1,1 mm
Radial clearance classCN
Precision classP0
Mass0,47 kg
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PRODUCT PERFORMANCE
C - Dynamic load22 kN
C0 - Static load7,35 kN
Cu - Fatigue limit load0,29 kN
e - Coefficient0.21
Y0 - Static axial load coefficient3.1
Y1 - Lower axial load coefficient3
Y2 - Upper axial load coefficient4.7
N lim - Oil lubrication limit speed8500 tr/min
N lim - Grease lubrication limit speed7100 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR51,5 mm
Da max - Max shoulder diameter OR78,5 mm
ra max - Max shaft & housing fillet radius1 mm
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