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7938A5SN24

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7938A5SN24TYNSUHP5 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7938A5SN24TYNSUHP5

Boundary Dimensions

d 190 mm Bore diameter
D 260 mm Outside diameter
B 33 mm Width
r(min.) 2 mm Chamfer Dimension
r1(min.) 1 mm Chamfer Dimension

Basic Load Ratings

Cr 139 kN Basic Dynamic Load Rating
C0r 174 kN Basic Static Load Rating

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

Grease 4000 min-1 Limiting Speed
Oil (Oil-air) 6300 min-1 Limiting Speed

Dimensions

A5: 25° Contact Angle
a 69.0 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 200 mm Diameter of Shaft Abutment
Da(max.) 250 mm Diameter of Housing Abutment
Db(max.) 254 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 158 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 1136N 476N/μm -10μm
L 2375N 622N/μm -19μm
M 5318N 845N/μm -35μm
H 10726N 1120N/μm -57μm

Additional information

26 g/brg Recommended Grease Quantities

Mass

4.52 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_ACBB_ST_A5
NSK Product Type Super Precision Bearing
Designations 7938A5SN24

© NSK Ltd.

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