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Single-row Angular Contact Ball Bearing

Single-row angular contact ball bearings are rolling bearings designed to withstand both radial loads and unidirectional axial loads. The contact surface between the inner and outer rings has a certain angle (usually 15°~40°), which improves the axial load capacity of the bearing.

Advantages

  • Strong load capacity
  • Good high-speed performance
  • High rigidity
  • Can be used in pairs

Anwendungen

  • Machine tool spindles
  • Electric motors and generators
  • Automotive gearboxes and wheels
  • Robotic joints and industrial automation equipment
  • Aerospace and medical equipment
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Technical analysis of single-row angular contact ball bearings

Basic characteristics

Single-row angular contact ball bearings (Single-Row Angular Contact Ball Bearing) adopt a special raceway design, which can simultaneously bear radial force and unidirectional axial force. The core of its performance lies in the contact angle design (common 15°, 20°, 25°, 30° and 40°). The angle is positively correlated with the axial load capacity, but the radial load capacity will be reduced accordingly.

Structural advantages

Directional load characteristics
Can only bear unidirectional axial force, and bidirectional force requires bearing pair installation (back-to-back/face-to-face configuration).

High rigidity design
The inclined raceway structure provides excellent rigidity, which is particularly suitable for high-precision application scenarios such as precision machining equipment.

Dynamic performance

The axial load capacity is significantly better than that of deep groove ball bearings

The radial load capacity is relatively limited

The optimized friction coefficient (0.001-0.0015) ensures high-speed operation stability

Standard specification parameters

Typical model technical index comparison table:

Modell Inner diameter (mm) Outer diameter (mm) Thickness (mm) Contact angle Axial load (N) Radial load (N)
7000C 10 26 8 15° 330 135
7002C 15 32 9 15° 460 185
7004C 20 42 12 20° 750 300
7200C 10 30 9 30° 500 210
Note: The data changes regularly with the increase of contact angle

Industrial application field

Precision manufacturing equipment

CNC machining center spindle system

CNC machining center spindle system

High-precision measuring instrument

Power transmission system

Turbocharger rotor support

Turbocharger rotor support

Electric vehicle drive motor

Turbocharger rotor support

Special working condition equipment

Aerospace engine auxiliary system

Wind power pitch mechanism

Industrial robot rotary joint

Common brands：

These are the brands of Schrägkugellager we have for now:

SKF single-row angular contact ball bearings
FAG single-row angular contact ball bearings
NSK single-row angular contact ball bearings
NTN single-row angular contact ball bearings
INA single-row angular contact ball bearings
KOYO single-row angular contact ball bearings
TIMKEN single-row angular contact ball bearings

Technical summary

This type of bearing has outstanding performance in axial load and rotation accuracy through optimized contact angle design. In practical application, it should be noted that:

The radial load capacity is limited

Bidirectional force needs to be installed in pairs

The speed, load and accuracy requirements should be considered comprehensively when selecting

As a key component of modern mechanical transmission system, its performance directly affects the overall operation quality and life of the equipment, and plays an irreplaceable role in the field of high-end equipment manufacturing.

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