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Standard Series High Precision Angular Contact Ball Bearings
| Parts Number |
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7212A5SN24TYNSULP4
Standard Series High Precision Angular Contact Ball Bearings
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Tap the image to enlarge it. |
Parts Number
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
|
76.5 |
kN |
Basic Dynamic Load Rating |
|
C0r
|
44.5 |
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)
|
16000 |
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
Preload,Rigidity(DB and DF arrangement)
|
Preload |
Axial Rigidity |
Measured axial clearance |
| EL |
331N |
181N/μm |
-8μm |
| L |
698N |
237N/μm |
-15μm |
| M |
1697N |
332N/μm |
-29μm |
| H |
3441N |
441N/μm |
-47μm |
Additional information
Mass
|
|
Designations |
Basic Load Ratings |
Axial Internal Clearance |
Accuracy |
Limiting Speeds |
Mass |
Cr
|
C0r
|
|
min
|
max
|
Grease
(min-1) |
Oil (Oil-air)
(min-1) |
(kg) |
|
7212A5SN24TYNSULP4 |
76.5 |
44.5 |
|
|
|
P4: ISO Class 4 |
12000 |
16000 |
0.637 |
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More Information
| NSK Product Type2 |
SP_ACBB_ST_A5 |
| NSK Product Type |
Super Precision Bearing |
| Designations |
7212A5SN24 |
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