KOYO Bearing 1208

Product description of KOYO Bearing 1208

KOYO Self-aligning ball bearing Open type, KOYO Bearing 1208, and we have related type you may also like KOYO Bearing 1201. The center of curvature of the spherical outer ring raceway matches the bearing center, which maintains rotation even when the inner ring, balls and cage are tilted with respect to the outer ring to some extent.

Accordingly, they are suitable for applications which involve misalignment between the axis and housing centers, axis deflection, etc.

Using an adapter facilitates the mounting of a tapered bore bearing on the axis.

Self-aligning ball bearing is widely adopted by large precision instruments due to its distinctive performance. For carrying out detailed investigation of a full instrument system, practical stiffness formulae of such a bearing are introduced with elastic contact mechanics, which are successfully applied to calculating the radial and axial stiffness-es of the bearing used by the large astronomical telescope, KOYO Self-aligning ball bearing Open type, KOYO Bearing 1208, Appropriate treatment of the stiffness-es of such bearing in finite element analysis is discussed and illustrated at the end.

Self-aligning ball bearings are particularly suitable:
if there is skewing between the outer and inner ring (for the compensation of angular misalignment)
for bearing arrangements with high radial loads
for higher speeds on account of their point contact, than barrel roller bearings with line contact where bearings with the above-mentioned characteristics are expected to run more quietly and at lower temperatures, even at high speeds

Mounting dimensions for the contact surfaces of bearing rings
KOYO Self-aligning ball bearing Open type, KOYO Bearing 1208, The contact surfaces for the rings must be of sufficient height
The mounting dimensions of the shaft and housing shoulders, and spacer rings etc., must ensure that the contact surfaces for the bearing rings are of sufficient height. However, they must also reliably prevent rotating parts of the bearing from grazing stationary parts. Proven mounting dimensions for the radii and diameters of the abutment shoulders. These dimensions are limiting dimensions (maximum or minimum dimensions); the actual values should not be higher or lower than specified.

Suitable bearing housings for self-aligning ball bearings
A large range of housings is available

For economical, operationally reliable and easily interchangeable bearing arrangement units, the self-aligning ball bearings can also be combined with Schaeffler bearing housings Figure. These easy-to-fit units fulfil all of the requirements for modern machine and plant designs with favourable maintenance-related characteristics.

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