The iso defines rolling bearings as bearings that roll (not slide) between parts that bear a load and move relative to each other. Can be used to bear radial, axial or combined radial and axial loads.
Four-point contact ball bearing VU250433, toothless, both lip seal
Radial load unidirectional axial load bidirectional axial load torque to all axes double seal grease lubrication
High degree, high rotation accuracy, good rigidity.
1) wide adaptive range of load, speed and working temperature.
2) most types can bear both radial and axial loads at the same time, which can simplify the structure.
3) suitable for mass production, convenient for procurement, maintenance, maintenance and replacement.
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| Radial load unidirectional axial load bidirectional axial load torque to all axes double seal grease lubrication |
Basic static load rating, radial
0 and practices - 0, 25 |
Radial clearance
Preceding 0-0 9 |
Axial tilt play
Conical lube nozzle according to DIN 71412, annular close to uniform spacing and concave |
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| Da ZT |
520 mm |
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| Di |
432 mm |
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| da |
434 mm |
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| dB |
18 mm |
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| di ZT |
346 mm |
Suitable for bearing with centering sleeve (suffix ZT)
Length of centering sleeve (T, T) (see part figure)
Tolerance: + IT8 |
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| H |
55 mm |
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| h |
50 mm |
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| La |
490 mm |
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| Li |
376 mm |
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| na |
20 |
| The number of fixed holes on the outer ring |
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| ni |
20 |
| The number of fixed holes in the inner ring |
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| T |
8 mm |
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| t |
8 mm |
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| m |
41 kg |
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| Fr per |
156000 N |
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| Ca |
370000 N |
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| C0a |
910000 N |
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| Cr |
243000 N |
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| C0r |
410000 N |
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0,06 - 0,25 |
Basic static load rating, radial
0 and practices - 0, 25
Radial clearance
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0,08 - 0,41 |
Preceding 0-0 9
Axial tilt play
Conical lube nozzle according to DIN 71412, annular close to uniform spacing and concave |
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This is the slewing bearing in the process of production
What kind of bearings do we produce?
The rolling bearing is divided into:
1) miniature bearing - size D nominal diameter less than or equal to 26 mm bearing
2) small bearing -- -- -- -- -- nominal outside diameter size is more than 26 mm less than 60 mm bearing
3) small and medium-sized bearing - size greater than or equal to nominal diameter of 60 mm less than 120 mm bearing
4) large bearing - size greater than or equal to 120 mm nominal diameter of less than 20 mm
5) bearing large bearing - size greater than or equal to 200 mm less than or equal to the nominal diameter of 440 mm -
6) oversize bearings size is greater than the nominal diameter of 440 mm bearing.
Audited Supplier 
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