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7905A5

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7905A5TRSUMP3 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7905A5TRSUMP3

Boundary Dimensions

d 25 mm Bore diameter
D 42 mm Outside diameter
B 9 mm Width
r(min.) 0.3 mm Chamfer Dimension
r1(min.) 0.15 mm Chamfer Dimension

Basic Load Ratings

Cr 7.80 kN Basic Dynamic Load Rating
C0r 5.15 kN Basic Static Load Rating

Speeds

Grease 29900 min-1 Limiting Speed
Oil (Oil-air) 44800 min-1 Limiting Speed

Dimensions

A5: 25° Contact Angle
a 12.3 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 27.5 mm Diameter of Shaft Abutment
Da(max.) 39.5 mm Diameter of Housing Abutment
Db(max.) 40.8 mm Diameter of Housing Abutment
ra(max.) 0.3 mm Radius of Shaft or Housing Fillet
rb(max.) 0.15 mm Radius of Shaft or Housing Fillet

Performance

Pa 4.40 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 38N 57N/μm -1μm
L 70N 71N/μm -3μm
M 153N 96N/μm -7μm
H 290N 124N/μm -12μm

Additional information

0.25 g/brg Recommended Grease Quantities

Mass

0.043 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_ACBB_ST_A5
NSK Product Type Super Precision Bearing
Designations 7905A5

© NSK Ltd.

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