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7901A5

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7901A5TRSULP4 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7901A5TRSULP4

Boundary Dimensions

d 12 mm Bore diameter
D 24 mm Outside diameter
B 6 mm Width
r(min.) 0.3 mm Chamfer Dimension
r1(min.) 0.15 mm Chamfer Dimension

Basic Load Ratings

Cr 3.35 kN Basic Dynamic Load Rating
C0r 1.77 kN Basic Static Load Rating

Speeds

Grease 55600 min-1 Limiting Speed
Oil (Oil-air) 83400 min-1 Limiting Speed

Dimensions

A5: 25° Contact Angle
a 7.2 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 14.5 mm Diameter of Shaft Abutment
Da(max.) 21.5 mm Diameter of Housing Abutment
Db(max.) 22.8 mm Diameter of Housing Abutment
ra(max.) 0.3 mm Radius of Shaft or Housing Fillet
rb(max.) 0.15 mm Radius of Shaft or Housing Fillet

Performance

Pa 1.71 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 16N 32N/μm 1μm
L 25N 38N/μm 0μm
M 59N 53N/μm -3μm
H 120N 70N/μm -7μm

Additional information

0.06 g/brg Recommended Grease Quantities

Mass

0.011 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_ACBB_ST_A5
NSK Product Type Super Precision Bearing
Designations 7901A5

© NSK Ltd.

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