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7218A5

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7218A5TRSUHP3 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7218A5TRSUHP3

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 123 kN Basic Dynamic Load Rating
C0r 100 kN Basic Static Load Rating

Speeds

Grease 8000 min-1 Limiting Speed
Oil (Oil-air) 12000 min-1 Limiting Speed

Dimensions

A5: 25° Contact Angle
a 44.1 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 83.5 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 658N 240N/μm -12μm
L 1272N 304N/μm -21μm
M 2899N 416N/μm -39μm
H 5945N 556N/μm -64μm

Additional information

12 g/brg Recommended Grease Quantities

Mass

2.31 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_ACBB_ST_A5
NSK Product Type Super Precision Bearing
Designations 7218A5

© NSK Ltd.

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