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7021A5

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7021A5TRSUHP3 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7021A5TRSUHP3

Boundary Dimensions

d 105 mm Bore diameter
D 160 mm Outside diameter
B 26 mm Width
r(min.) 2 mm Chamfer Dimension
r1(min.) 1 mm Chamfer Dimension

Basic Load Ratings

Cr 87.5 kN Basic Dynamic Load Rating
C0r 85.0 kN Basic Static Load Rating

Speeds

Grease 7600 min-1 Limiting Speed
Oil (Oil-air) 11400 min-1 Limiting Speed

Dimensions

A5: 25° Contact Angle
a 43.9 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 115 mm Diameter of Shaft Abutment
Da(max.) 150 mm Diameter of Housing Abutment
Db(max.) 154 mm Diameter of Housing Abutment
ra(max.) 2 mm Radius of Shaft or Housing Fillet
rb(max.) 1 mm Radius of Shaft or Housing Fillet

Performance

Pa 66.5 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 493N 247N/μm -8μm
L 989N 318N/μm -15μm
M 2211N 431N/μm -28μm
H 4473N 572N/μm -46μm

Additional information

8.4 g/brg Recommended Grease Quantities

Mass

1.82 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_ACBB_ST_A5
NSK Product Type Super Precision Bearing
Designations 7021A5

© NSK Ltd.

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