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Double-row self-aligning ball bearings

1210SK - NTN

1210SK

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

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter50 mm
D - External diameter90 mm
B - Bearing/Inner ring width20 mm
rs - Min fillet radius1,1 mm
Associated sleeve referenceH210X
Radial clearance classCN
Precision classP0
Mass0,535 kg
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PRODUCT PERFORMANCE
C - Dynamic load22,8 kN
C0 - Static load8,1 kN
Cu - Fatigue limit load0,33 kN
e - Coefficient0.21
Y0 - Static axial load coefficient3.2
Y1 - Lower axial load coefficient3.1
Y2 - Upper axial load coefficient4.7
N lim - Oil lubrication limit speed8000 tr/min
N lim - Grease lubrication limit speed6300 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR56,5 mm
da max - Max shoulder diameter IR62 mm
db - Min diameter for Sleeve53 mm
Ce - Min length fro Sleeve5 mm
Da max - Max shoulder diameter OR83,5 mm
ra max - Max shaft & housing fillet radius1 mm
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