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7901C

Standard Series High Precision Angular Contact Ball Bearings

7901C

Standard Series High Precision Angular Contact Ball Bearings

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Images shown are representations. Designs and specifications may differ from actual products.
Parts Number
7901CTYNSUMP3

Parts Number

7901CTYNSUMP3

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 3.55 kN Basic Dynamic Load Rating
C0r 1.86 kN Basic Static Load Rating

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

Grease 63000 min-1 Limiting Speed
Oil (Oil-air) 80000 min-1 Limiting Speed

Dimensions

C: 15° Contact Angle
a 5.4 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 1.45 kN Permissible Axial Load

Calculation factors

f0 14.7 Factor

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 8.6N 12N/μm 4μm
L 16N 16N/μm 2μm
M 41N 25N/μm -3μm
H 77N 34N/μm -8μm

Additional information

0.06 g/brg Recommended Grease Quantities

Mass

0.011 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_ACBB_ST_C
NSK Product Type Super Precision Bearing

© NSK Ltd.

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