7009A

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7009ATYNSUELP4

Boundary Dimensions

d 45 mm Bore diameter
D 75 mm Outside diameter
B 16 mm Width
r(min.) 1 mm Chamfer Dimension
r1(min.) 0.6 mm Chamfer Dimension

Basic Load Ratings

Cr 28.0 kN Basic Dynamic Load Rating
C0r 17.7 kN Basic Static Load Rating

Speeds The limiting speeds of the ball guided cage is lower than the outer ring guided cage.

Grease 12000 min-1 Limiting Speed
Oil (Oil-air) 16700 min-1 Limiting Speed

Dimensions

A: 30° Contact Angle
a 25.3 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 51 mm Diameter of Shaft Abutment
Da(max.) 69 mm Diameter of Housing Abutment
Db(max.) 70 mm Diameter of Housing Abutment
ra(max.) 1 mm Radius of Shaft or Housing Fillet
rb(max.) 0.5 mm Radius of Shaft or Housing Fillet

Performance

Pa 11.1 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 49N 105N/μm 0μm
L 227N 176N/μm -5μm
M 482N 231N/μm -10μm
H 1178N 324N/μm -20μm

Additional information

1.4 g/brg Recommended Grease Quantities

Mass

0.241 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)
7009ATYNSUELP4 28.0 17.7 P4: ISO Class 4 12000 16700 0.241

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CAD
More Information
NSK Product Type2 SP_ACBB_ST_A
NSK Product Type Super Precision Bearing
Designations 7009A
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