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7218A5

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7218A5TYNSUHP4Y Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7218A5TYNSUHP4Y

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 The limiting speeds of the ball guided cage is lower than the outer ring guided cage.

Grease 8000 min-1 Limiting Speed
Oil (Oil-air) 11000 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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