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Double-row self-aligning ball bearings

1311S - NTN

1311S

Self-aligning ball bearing, pressed steel cage, open

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter55 mm
D - External diameter120 mm
B - Bearing/Inner ring width29 mm
rs - Min fillet radius2 mm
Radial clearance classCN
Precision classP0
Mass1,6 kg
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PRODUCT PERFORMANCE
C - Dynamic load51,5 kN
C0 - Static load17,9 kN
Cu - Fatigue limit load0,4 kN
e - Coefficient0.23
Y0 - Static axial load coefficient2.8
Y1 - Lower axial load coefficient2.7
Y2 - Upper axial load coefficient4.2
N lim - Oil lubrication limit speed6300 tr/min
N lim - Grease lubrication limit speed5000 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR64 mm
Da max - Max shoulder diameter OR111 mm
ra max - Max shaft & housing fillet radius2 mm
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