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7218A5SN24

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7218A5SN24TYNSULP4 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7218A5SN24TYNSULP4

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 147 kN Basic Dynamic Load Rating
C0r 95.5 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 99.2 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 744N 279N/μm -12μm
L 1462N 357N/μm -21μm
M 3375N 490N/μm -39μm
H 6965N 657N/μm -64μm

Additional information

12 g/brg Recommended Grease Quantities

Mass

1.91 kg Mass(approx.)
Designations Basic Load Ratings Axial Internal Clearance Accuracy Limiting Speeds Mass
Cr
 C0r
 min
 max
 Grease
(min-1)		 Oil (Oil-air)
(min-1)
(kg)
7218A5SN24TYNSULP4 147 95.5 P4: ISO Class 4 8000 11000 1.91

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CAD
More Information
NSK Product Type2 SP_ACBB_ST_A5
NSK Product Type Super Precision Bearing
Designations 7218A5SN24

© NSK Ltd.

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