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7212A5

Standard Series High Precision Angular Contact Ball Bearings
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Parts Number
7212A5TRSUHP4 Standard Series High Precision Angular Contact Ball Bearings
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Parts Number

7212A5TRSUHP4

Boundary Dimensions

d 60 mm Bore diameter
D 110 mm Outside diameter
B 22 mm Width
r(min.) 1.5 mm Chamfer Dimension
r1(min.) 1 mm Chamfer Dimension

Basic Load Ratings

Cr 64.0 kN Basic Dynamic Load Rating
C0r 47.0 kN Basic Static Load Rating

Speeds

Grease 11800 min-1 Limiting Speed
Oil (Oil-air) 17700 min-1 Limiting Speed

Dimensions

A5: 25° Contact Angle
a 30.8 mm Effective Load Center

Abutment and Fillet Dimensions

da(min.) 69 mm Diameter of Shaft Abutment
Da(max.) 101 mm Diameter of Housing Abutment
Db(max.) 104 mm Diameter of Housing Abutment
ra(max.) 1.5 mm Radius of Shaft or Housing Fillet
rb(max.) 0.8 mm Radius of Shaft or Housing Fillet

Performance

Pa 40.0 kN Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

Preload Axial Rigidity Measured axial clearance
EL 293N 155N/μm -8μm
L 607N 202N/μm -15μm
M 1458N 282N/μm -29μm
H 2937N 374N/μm -47μm

Additional information

4.5 g/brg Recommended Grease Quantities

Mass

0.773 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_ACBB_ST_A5
NSK Product Type Super Precision Bearing
Designations 7212A5

© NSK Ltd.

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