Original 7911 CTYNSULP4 Japan NSK spindle bearing

Diameter: 55x80x13mm 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)

Product Description

Original 7911 CTYNSULP4 Japan NSK spindle bearing

Angular contact ball bearings are particularly suitable for carrying combined (axial and radial) loads. Sometimes, they also can carry the pure axial load and operate at higher speeds. Under radial load, the axial component force will be produced which must be counteracted. So the bearings are normally adjusted against a second 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.

Original 7911 CTYNSULP4 Japan NSK spindle bearing — High-precision-spindle-bearing

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

17.3

16.1

8400

11000

0.214

Shandong Tefule Bearing Co., Ltd

is a professional bearing manufacturer and dealer in China. We have been engaged in the bearing industry for 10 years and made international trade of bearing import and export for more than 8 years. We have our own brand “TFL” and applied ISO9001:2000 certificate for certification authority. We attend international bearing fairs, put in many B2B websites and achieve many customers all over the world also build up a good reputation from our customers.
Our company specializes in ball bearings,roller-bearing, housing units, wheel hub bearings, bearing parts and accessories, and cross-roller bearings. Also, we can customize various large non-standard products such as the most competitive products according to customers’ demands.