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7218C

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7218CTRSUMP4 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7218CTRSUMP4

Boundary Dimensions

d 90 mm Bore diameter
D 160 mm Outside diameter
B 30 mm Width
r(min.) 2 mm Chamfer Dimension
r1(min.) 1 mm Chamfer Dimension

Basic Load Ratings

Cr 129 kN Basic Dynamic Load Rating
C0r 105 kN Basic Static Load Rating

Speeds

Grease 9200 min-1 Limiting Speed
Oil (Oil-air) 14000 min-1 Limiting Speed

Dimensions

C: 15° Contact Angle
a 31.7 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 100 mm Diameter of Shaft Abutment
Da(max.) 150 mm Diameter of Housing Abutment
Db(max.) 154 mm Diameter of Housing Abutment
ra(max.) 2 mm Radius of Shaft or Housing Fillet
rb(max.) 1 mm Radius of Shaft or Housing Fillet

Performance

Pa 72.0 kN Permissible Axial Load

Calculation factors

f0 14.6 Factor

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 384N 95N/μm -15μm
L 771N 126N/μm -29μm
M 1865N 187N/μm -57μm
H 3713N 262N/μm -90μm

Additional information

12 g/brg Recommended Grease Quantities

Mass

2.20 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_ACBB_ST_C
NSK Product Type Super Precision Bearing
Designations 7218C

© NSK Ltd.

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