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ROBUST Series Ultra High-Speed Angular Contact Ball Bearings
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Parts Number
Boundary Dimensions
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BER: 25° |
|
Bearing Type |
|
d
|
120 |
mm |
Bore diameter |
|
D
|
180 |
mm |
Outside diameter |
|
B
|
28 |
mm |
Width |
|
BN
|
6.0 |
mm |
|
|
SN
|
16 |
mm |
|
|
SB
|
2.2 |
mm |
|
|
r(min.)
|
2 |
mm |
Chamfer Dimension |
|
r1(min.)
|
1 |
mm |
Chamfer Dimension |
Basic Load Ratings
|
Cr
|
57.0 |
kN |
Basic Dynamic Load Rating |
|
C0r
|
46.5 |
kN |
Basic Static Load Rating |
Speeds
The limiting speeds of the ball guided cage is lower than the outer ring guided cage.
|
Grease
|
8000 |
min-1 |
Limiting Speed |
|
Oil (Oil-air)
|
10000 |
min-1 |
Limiting Speed |
Dimensions
|
|
25° |
|
Contact Angle |
|
a
|
49.0 |
mm |
Effective Load Center |
Abutment and Fillet Dimensions
|
da(min.)
|
130 |
mm |
Diameter of Shaft Abutment |
|
Da(max.)
|
170 |
mm |
Diameter of Housing Abutment |
|
Db(max.)
|
174 |
mm |
Diameter of Housing Abutment |
|
ra(max.)
|
2 |
mm |
Radius of Shaft or Housing Fillet |
|
rb(max.)
|
1 |
mm |
Radius of Shaft or Housing Fillet |
Performance
Preload,Rigidity(DB and DF arrangement)
|
Preload |
Axial Rigidity |
Measured axial clearance |
| EL |
98N |
160N/μm |
0μm |
| L |
1125N |
367N/μm |
-15μm |
| M |
2286N |
475N/μm |
-26μm |
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) |
|
120BER10HTYNV1VSULP4Y |
57.0 |
46.5 |
|
|
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P4Y: Special class (Special bore and outside diameter tolerances, others are ISO Class 4.) |
8000 |
10000 |
2.14 |
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More Information
| NSK Product Type2 |
SP_ACBB_RS_BER |
| NSK Product Type |
Super Precision Bearing |
| Designations |
120BER10H |
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