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7908C

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7908CTRSULP4Y Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7908CTRSULP4Y

Boundary Dimensions

d 40 mm Bore diameter
D 62 mm Outside diameter
B 12 mm Width
r(min.) 0.6 mm Chamfer Dimension
r1(min.) 0.3 mm Chamfer Dimension

Basic Load Ratings

Cr 15.9 kN Basic Dynamic Load Rating
C0r 11.7 kN Basic Static Load Rating

Speeds

Grease 22600 min-1 Limiting Speed
Oil (Oil-air) 34400 min-1 Limiting Speed

Dimensions

C: 15° Contact Angle
a 12.8 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 45 mm Diameter of Shaft Abutment
Da(max.) 57 mm Diameter of Housing Abutment
Db(max.) 59.5 mm Diameter of Housing Abutment
ra(max.) 0.6 mm Radius of Shaft or Housing Fillet
rb(max.) 0.3 mm Radius of Shaft or Housing Fillet

Performance

Pa 8.40 kN Permissible Axial Load

Calculation factors

f0 15.7 Factor

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 41N 32N/μm 1μm
L 78N 42N/μm -3μm
M 196N 63N/μm -12μm
H 384N 88N/μm -22μm

Additional information

0.70 g/brg Recommended Grease Quantities

Mass

0.109 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_ACBB_ST_C
NSK Product Type Super Precision Bearing
Designations 7908C

© NSK Ltd.

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