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7920C

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7920CTRSUHP3 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7920CTRSUHP3

Boundary Dimensions

d 100 mm Bore diameter
D 140 mm Outside diameter
B 20 mm Width
r(min.) 1.1 mm Chamfer Dimension
r1(min.) 0.6 mm Chamfer Dimension

Basic Load Ratings

Cr 52.5 kN Basic Dynamic Load Rating
C0r 54.0 kN Basic Static Load Rating

Speeds

Grease 9600 min-1 Limiting Speed
Oil (Oil-air) 14600 min-1 Limiting Speed

Dimensions

C: 15° Contact Angle
a 26.1 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 107 mm Diameter of Shaft Abutment
Da(max.) 133 mm Diameter of Housing Abutment
Db(max.) 135 mm Diameter of Housing Abutment
ra(max.) 1 mm Radius of Shaft or Housing Fillet
rb(max.) 0.6 mm Radius of Shaft or Housing Fillet

Performance

Pa 33.0 kN Permissible Axial Load

Calculation factors

f0 16.5 Factor

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 191N 84N/μm -5μm
L 387N 112N/μm -13μm
M 905N 164N/μm -28μm
H 1790N 230N/μm -46μm

Additional information

4.6 g/brg Recommended Grease Quantities

Mass

0.800 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_ACBB_ST_C
NSK Product Type Super Precision Bearing
Designations 7920C

© NSK Ltd.

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