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7021A5SN24

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7021A5SN24TRV1VSUHP3 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7021A5SN24TRV1VSUHP3

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 105 kN Basic Dynamic Load Rating
C0r 81.0 kN Basic Static Load Rating

Speeds

Grease 9900 min-1 Limiting Speed
Oil (Oil-air) 14800 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 79.0 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 553N 287N/μm -8μm
L 1131N 372N/μm -15μm
M 2564N 507N/μm -28μm
H 5228N 674N/μm -46μm

Additional information

8.4 g/brg Recommended Grease Quantities

Mass

1.58 kg Mass(approx.)
Designations Basic Load Ratings Axial Internal Clearance Accuracy Limiting Speeds Mass
Cr
 C0r
 min
 max
 Grease
(min-1)		 Oil (Oil-air)
(min-1)
(kg)
7021A5SN24TRV1VSUHP3 105 81.0 P3: Special class (ISO Class 4 dimensional tolerances and ISO Class 2 running accuracy.) 9900 14800 1.58

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CAD
More Information
NSK Product Type2 SP_ACBB_ST_A5
NSK Product Type Super Precision Bearing
Designations 7021A5SN24

© NSK Ltd.

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