Original 7911 CTYNSULP4 Japan NSK spindle bearing
- Samples: Original 7911CTYNSULP4 spindle bearing
- $5.43/Piece | 1 Piece (Min. Order) |
Lead Time–If you finish the payment today, your order will ship out within the delivery date.
Quantity(Pieces) 1 – 1000 >1000 Est. Time(days) 5 To be negotiated
- Customization:
- Customized logo(Min. Order: 10 Pieces)Customized packaging(Min. Order: 10 Pieces)
Original 7911 CTYNSULP4 Japan NSK spindle bearing
Single-row angular contact ball bearings can carry axial load acting in one direction only. In many applications, angular contact ball bearings in pairs or muti-arrangements should be used. The axial load carrying capacity of angular contact ball bearings increases with the increase of contact angle.
FAQ: What are the ways and advantages of paired installation of spindle bearings?
1. Back-to-back (Duplex Back-to-Back)
Features: The wide ends of the two bearings are installed facing each other, and the contact angle of the bearings faces outward.
Advantages: Provides higher rigidity and anti-tilting ability, suitable for working conditions with complex forces.
Bears bidirectional axial loads and are evenly distributed.
Application: Suitable for machine tool spindles that require high rigidity and bending resistance.
2. Face-to-face (DF, Duplex Face-to-Face)
Features: The narrow ends of the two bearings are installed facing each other, and the contact angle of the bearings faces inward.
Advantages: Compensates for axial displacement caused by installation errors or temperature differences. The rigidity is lower than that of back-to-back installation, but the axial load capacity is better.
Application: Suitable for machine tool spindles that are greatly affected by thermal expansion.
3. Tandem (DT, Duplex Tandem)
Features: The two bearings are installed in the same direction with the same contact angle.
Advantages: Increases the axial load capacity in a single direction. Applicable to working conditions that need to bear large axial loads in the same direction.
Application: High-load processing scenarios, such as heavy-duty cutting machining centers.
Boundary dimensions (mm) | Basic load ratings | Limiting speed | Mass | ||||||||||
(kN) | (min-1) | (kg) | |||||||||||
Inner dia. (d) | Outer dia. (D) | Width (B) | Chamfer (rs_min) | Dynamic (Cr) | Static (Cor) | Grease | Oil | ||||||
55 | 80 | 13 | 1 | 17.3 | 16.1 | 8400 | 11000 | 0.214 | |||||
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