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7040A5

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7040A5TRSUHP3 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7040A5TRSUHP3

Boundary Dimensions

d 200 mm Bore diameter
D 310 mm Outside diameter
B 51 mm Width
r(min.) 2.1 mm Chamfer Dimension
r1(min.) 1.1 mm Chamfer Dimension

Basic Load Ratings

Cr 315 kN Basic Dynamic Load Rating
C0r 325 kN Basic Static Load Rating

Speeds

Grease 3600 min-1 Limiting Speed
Oil (Oil-air) 5500 min-1 Limiting Speed

Dimensions

A5: 25° Contact Angle
a 85.0 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 212 mm Diameter of Shaft Abutment
Da(max.) 298 mm Diameter of Housing Abutment
Db(max.) 303 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 245 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 1876N 493N/μm -18μm
L 3710N 632N/μm -31μm
M 8392N 861N/μm -56μm
H 16917N 1141N/μm -90μm

Additional information

66 g/brg Recommended Grease Quantities

Mass

14.0 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)
7040A5TRSUHP3 315 325 P3: Special class (ISO Class 4 dimensional tolerances and ISO Class 2 running accuracy.) 3600 5500 14.0

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CAD
More Information
NSK Product Type2 SP_ACBB_ST_A5
NSK Product Type Super Precision Bearing
Designations 7040A5

© NSK Ltd.

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