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7912A5SN24

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7912A5SN24TRSULP5 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7912A5SN24TRSULP5

Boundary Dimensions

d 60 mm Bore diameter
D 85 mm Outside diameter
B 13 mm Width
r(min.) 1 mm Chamfer Dimension
r1(min.) 0.6 mm Chamfer Dimension

Basic Load Ratings

Cr 18.6 kN Basic Dynamic Load Rating
C0r 17.3 kN Basic Static Load Rating

Speeds

Grease 18000 min-1 Limiting Speed
Oil (Oil-air) 26900 min-1 Limiting Speed

Dimensions

A5: 25° Contact Angle
a 23.4 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 66 mm Diameter of Shaft Abutment
Da(max.) 79 mm Diameter of Housing Abutment
Db(max.) 80 mm Diameter of Housing Abutment
ra(max.) 1 mm Radius of Shaft or Housing Fillet
rb(max.) 0.5 mm Radius of Shaft or Housing Fillet

Performance

Pa 15.5 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 108N 133N/μm -2μm
L 223N 173N/μm -5μm
M 477N 231N/μm -10μm
H 1021N 313N/μm -18μm

Additional information

1.1 g/brg Recommended Grease Quantities

Mass

0.175 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_ACBB_ST_A5
NSK Product Type Super Precision Bearing
Designations 7912A5SN24

© NSK Ltd.

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