7209A5

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7209A5TRSULP5

Boundary Dimensions

d 45 mm Bore diameter
D 85 mm Outside diameter
B 19 mm Width
r(min.) 1.1 mm Chamfer Dimension
r1(min.) 0.6 mm Chamfer Dimension

Basic Load Ratings

Cr 41.0 kN Basic Dynamic Load Rating
C0r 27.6 kN Basic Static Load Rating

Speeds

Grease 15400 min-1 Limiting Speed
Oil (Oil-air) 23100 min-1 Limiting Speed

Dimensions

A5: 25° Contact Angle
a 24.7 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 52 mm Diameter of Shaft Abutment
Da(max.) 78 mm Diameter of Housing Abutment
Db(max.) 80 mm Diameter of Housing Abutment
ra(max.) 1 mm Radius of Shaft or Housing Fillet
rb(max.) 0.6 mm Radius of Shaft or Housing Fillet

Performance

Pa 23.3 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 169N 115N/μm -5μm
L 333N 147N/μm -10μm
M 875N 212N/μm -22μm
H 1738N 281N/μm -36μm

Additional information

2.5 g/brg Recommended Grease Quantities

Mass

0.402 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_ACBB_ST_A5
NSK Product Type Super Precision Bearing
Designations 7209A5
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