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7052A5

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7052A5SUMP4 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7052A5SUMP4

Boundary Dimensions

d 260 mm Bore diameter
D 400 mm Outside diameter
B 65 mm Width
r(min.) 4 mm Chamfer Dimension
r1(min.) 1.5 mm Chamfer Dimension

Basic Load Ratings

Cr 360 kN Basic Dynamic Load Rating
C0r 545 kN Basic Static Load Rating

Speeds

Grease 2800 min-1 Limiting Speed
Oil (Oil-air) 4300 min-1 Limiting Speed

Dimensions

A5: 25° Contact Angle
a 109.4 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 278 mm Diameter of Shaft Abutment
Da(max.) 382 mm Diameter of Housing Abutment
Db(max.) 391 mm Diameter of Housing Abutment
ra(max.) 3 mm Radius of Shaft or Housing Fillet
rb(max.) 1.5 mm Radius of Shaft or Housing Fillet

Performance

Pa 420 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity
EL 3144N 640N/μm
L 6469N 832N/μm
M 12677N 1073N/μm
H 25109N 1409N/μm

Additional information

142 g/brg Recommended Grease Quantities

Mass

29 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_ACBB_ST_A5
NSK Product Type Super Precision Bearing
Designations 7052A5

© NSK Ltd.

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