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7220 - NTN

7220

Angular contact ball bearings, pressed steel cage

The single row angular contact ball bearing is designed to withstand combined loads with a predominant axial component. Installed in opposition with another bearing of the same type, it guarantees high mounting rigidity.

The NTN range is available in several variants: 30° or 40° angles, polyamide, pressed steel or solid brass cages, universal pairing available, clearances or preloads, etc.

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter100 mm
D - External diameter180 mm
B - Bearing/Inner ring width34 mm
a - Charge load application point57,5 mm
α - Contact angle30 °
rs - Min fillet radius2,1 mm
r1s - Min fillet radius1,1 mm
Radial clearance classCN
Mass3,2 kg
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PRODUCT PERFORMANCE
C - Dynamic load159 kN
C0 - Static load126 kN
Cu - Fatigue limit load8,3 kN
N lim - Oil lubrication limit speed5200 tr/min
N lim - Grease lubrication limit speed3900 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR112 mm
db min - Min IR shoulder diameter107 mm
Da max - Max shoulder diameter OR168 mm
Db max - Max OR shoulder diameter173 mm
r1a - Max fillet radius1 mm
ra max - Max shaft & housing fillet radius2 mm
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