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7038A5

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7038A5TRSUHP4 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7038A5TRSUHP4

Boundary Dimensions

d 190 mm Bore diameter
D 290 mm Outside diameter
B 46 mm Width
r(min.) 2.1 mm Chamfer Dimension
r1(min.) 1.1 mm Chamfer Dimension

Basic Load Ratings

Cr 245 kN Basic Dynamic Load Rating
C0r 291 kN Basic Static Load Rating

Speeds

Grease 3800 min-1 Limiting Speed
Oil (Oil-air) 5900 min-1 Limiting Speed

Dimensions

A5: 25° Contact Angle
a 79.0 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 202 mm Diameter of Shaft Abutment
Da(max.) 278 mm Diameter of Housing Abutment
Db(max.) 283 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 222 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 1723N 472N/μm -17μm
L 3640N 619N/μm -31μm
M 7610N 820N/μm -53μm
H 15239N 1084N/μm -85μm

Additional information

50 g/brg Recommended Grease Quantities

Mass

11 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_ACBB_ST_A5
NSK Product Type Super Precision Bearing
Designations 7038A5

© NSK Ltd.

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