The NSK 7000A5TRDULP3 is engineered for the most demanding spindle and precision machine tool applications. This super-precision angular contact bearing set offers high rigidity, exceptional rotational accuracy, and outstanding speed capability. Manufactured by NSK—the global leader in high-precision bearing technology—this bearing pair is ideal for situations where vibration, thermal stability, and ultra-tight tolerances are critical.
Typical Applications
High-speed machine tool spindles (CNC mills, grinders, lathes)
Precision rotary tables and indexing devices
Electric motors and spindles in robotics/automation where lower vibration is required
Inspection equipment and precision instruments which demand high positional accuracy
Any application where a universal duplex bearing set with high axial/radial load capability and precision performance is required
Boundary Dimensions
| d |
10 |
mm |
Bore diameter |
| D |
26 |
mm |
Outside diameter |
| B |
8 |
mm |
Width |
| r(min.) |
0.3 |
mm |
Chamfer Dimension |
| r1(min.) |
0.15 |
mm |
Chamfer Dimension |
Basic Load Ratings
| Cr |
6.50 |
kN |
Basic Dynamic Load Rating |
| C0r |
2.41 |
kN |
Basic Static Load Rating |
Speeds
| Grease |
55600 |
min-1 |
Limiting Speed |
| Oil (Oil-air) |
83400 |
min-1 |
Limiting Speed |
Dimensions
|
A5: 25° |
|
Contact Angle |
| a |
8.2 |
mm |
Effective Load Center |
Abutment and Fillet Dimensions
| da(min.) |
12.5 |
mm |
Diameter of Shaft Abutment |
| Da(max.) |
23.5 |
mm |
Diameter of Housing Abutment |
| Db(max.) |
24.8 |
mm |
Diameter of Housing Abutment |
| ra(max.) |
0.3 |
mm |
Radius of Shaft or Housing Fillet |
| rb(max.) |
0.15 |
mm |
Radius of Shaft or Housing Fillet |
Performance
| Pa |
2.48 |
kN |
Permissible Axial Load |
Preload,Rigidity(DB and DF arrangement)
|
Preload |
Axial Rigidity |
Measured axial clearance |
| EL |
17N |
29N/μm |
1μm |
| L |
43N |
41N/μm |
-2μm |
| M |
78N |
52N/μm |
-5μm |
| H |
153N |
68N/μm |
-10μm |
Additional information
|
0.12 |
g/brg |
Recommended Grease Quantities |
Mass
Why choose Bearing King for this product?
At Bearing King we specialise in high-precision bearings and spindle-grade components, offering genuine NSK product, UK stock availability, and expert support to help you select the correct bearing solution for your machine or application.
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5. Please allow 3-5 days for your return to be processed or exchange to be sent.
