German Myonic bearings Myonic models Myonic prices

Myonic bearings can simultaneously withstand radial and axial loads. They can operate at higher speeds. The greater the contact angle, the higher the axial load capacity. The contact angle is the angle between the line connecting the contact points of the ball and raceway in the radial plane and the perpendicular to the bearing axis. High-precision and high-speed bearings typically use a 15 degree contact angle. Under axial force, the contact angle increases.

Myonic bearing classification

1) Single-row angular contact ball bearings can only withstand axial loads in one direction; when subjected to radial loads, they generate additional axial forces. And can only limit the axial displacement of the shaft or housing in one direction. The contact angle of angular contact ball bearings is 40 degrees, so they can withstand large axial loads. Angular contact ball bearings have a non-separable design, with shoulders of different heights on both sides of the inner and outer rings. To improve the bearing's load capacity, one side's shoulder is machined lower, allowing more steel balls to be installed in the bearing. 2) Double-row angular contact ball bearings can withstand combined radial and axial loads and moment loads, primarily radial loads, and limit axial displacement of the shaft in both directions. They are mainly used in components that limit bidirectional axial displacement of the shaft and housing. The tilting capability between the inner and outer rings of double-row angular contact ball bearings is limited; the allowable tilt angle depends on the bearing's internal clearance, size, internal design, and the forces and moments acting on the bearing. The maximum allowable tilt angle should ensure that no excessive additional stress is generated within the bearing. If there is a tilt angle between the inner and outer rings, it will affect the bearing's service life, reduce operating precision, and increase operating noise. Double-row angular contact ball bearings generally use nylon cages or brass solid cages. When installing double-row angular contact ball bearings, note that although the bearing can withstand bidirectional axial loads, if one side has a filling slot, ensure that the main axial load does not pass through the raceway edge with the slot. During use, ensure that the raceway without the filling slot bears the main load.

Myonic bearing features

1) Universally matchable bearings are specially processed so that when installed close together, any combination achieves the specified internal clearance or preload and average load distribution without using shims or similar devices. Paired bearings are applied when the load capacity of a single bearing is insufficient (using tandem configuration) or when combined loads or axial loads in two directions must be supported (using back-to-back or face-to-face configurations). Basic design bearings (not suitable for universal matching) are used for single bearing configurations. Basic design single-row angular contact ball bearings are mainly applied in configurations with only one bearing per position. Their width and protrusion are standard tolerance grades. Therefore, they are not suitable for installing two single-row angular contact ball bearings close together.

Myonic bearing installation

High-speed precision angular contact ball bearings are mainly used in high-speed rotation applications with light loads, requiring high accuracy, high rotational speed, low temperature rise, low vibration, and a certain service life. They are often installed in pairs as support components for high-speed motorized spindles and are key matching components for the high-speed motorized spindles of internal grinding machines. The Kuaiyiyou Automation Selection Guide for angular contact ball bearings provides selection assistance. Angular contact ball bearings have three installation configurations: back-to-back, face-to-face, and tandem arrangement. In back-to-back installation (the wide ends of the two bearings face each other), the contact angle lines of the bearings diverge along the axis of rotation, increasing the radial and axial support angle rigidity and providing maximum resistance to deformation. In face-to-face installation (the narrow ends of the two bearings face each other), the contact angle lines converge toward the axis of rotation, resulting in lower support angle rigidity. Since the inner ring extends beyond the outer ring, when the outer rings of the two bearings are pressed together, the original clearance of the outer rings is eliminated, which can increase the preload on the bearings. In tandem arrangement (the wide ends of the two bearings are oriented in the same direction), the contact angle lines are parallel and in the same direction, allowing the two bearings to share the working load in the same direction. However, when using this installation configuration, to ensure axial stability during installation, two pairs of tandem-arranged bearings must be mounted opposite each other at both ends of the shaft.

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