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Double-row self-aligning ball bearings

1212SK - NTN

1212SK

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

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter60 mm
D - External diameter110 mm
B - Bearing/Inner ring width22 mm
rs - Min fillet radius1,5 mm
Associated sleeve referenceH212X
Radial clearance classCN
Precision classP0
Mass0,91 kg
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PRODUCT PERFORMANCE
C - Dynamic load30,5 kN
C0 - Static load11,5 kN
Cu - Fatigue limit load0,46 kN
e - Coefficient0.18
Y0 - Static axial load coefficient3.6
Y1 - Lower axial load coefficient3.4
Y2 - Upper axial load coefficient5.3
N lim - Oil lubrication limit speed6300 tr/min
N lim - Grease lubrication limit speed5300 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR68 mm
da max - Max shoulder diameter IR76 mm
db - Min diameter for Sleeve64 mm
Ce - Min length fro Sleeve5 mm
Da max - Max shoulder diameter OR102 mm
ra max - Max shaft & housing fillet radius1,5 mm
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