Home>Bearing knowledge> Description and characteristics of four-point touch ball bearing

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Description and characteristics of four-point ball bearings

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Description of four-point ball bearings:
One. The four-point ball bearing is attributed to a radial single-row angular touch ball bearing; the depicted raceway is used to support the axial load acting in both directions. The four-point contact ball bearing can accept the highest axial load. One-quarter radial load. Four-point ball bearings and double-row bearings are comparative; the occupied axial space will be significantly reduced.
The SKF four-point touch ball bearing depicted by QJ has a touch angle of 35° or 45°. The inner ring is a flat inner ring. This allows a larger number of balls to be loaded into the bearing; this gives the bearing a higher Load acceptance. This SKF four-point ball bearing is a separate drawing; that is, the outer ring with the ball and cage assembly can be separated from the two inner rings and half ring.
two. The inner ring (or outer ring) of the four-point touch ball bearing is accurately assembled from two half circles; and the radius of curvature of the groove of the entire outer (or inner ring) is very large.谒 觥 觥 觥 觥 冀哟ィ 冀哟ィ 冀哟ィ 庋 庋 庋 庋 庋 庋 庋 庋 庋 庋 庋 蚋 蚋 蚋 蚋 蚋 赡芰Γ 舸盏 舸盏 舸盏 舸盏 徊 徊 徊 徊 徊 徊 徊 徊 徊Xin Xin 芎 芎 牧 牧 牧 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎 芎
three. The four-point touch ball bearing has a very high speed of rotation; and the work is very stable; its double half circle can be removed from the whole set of bearings for the device; therefore, the four-point touch ball bearing is mostly used in the engine; Accepts large radial and axial loads at higher speeds.
One of the two inner rings of SKF Explorer's four-point ball bearing is a deep-bottomed fig. When this four-point ball bearing is used with SKF cylindrical roller bearings; Increased oil flow. In addition; when disassembling the four-point ball bearing; these deep concave bottoms can also be used to fix the puller.
four. Four-point touch ball bearing features:
Four-point ball bearings are separable; single bearings can replace angular contact ball bearings in combination with front or back.
It can accept radial load and bidirectional axial load; it can restrain the axial displacement in two directions; but it has less axial space than the current standard double row angular touch ball bearing.
The four-point ball bearing is compared with other ball bearings; when the radial clearance is together; the axial clearance is more entangled.
The four-point touch ball bearing is suitable for axial and radial combined loads that accept pure axial load or axial load. Therefore, the double inner ring (or outer ring); the number of balls is increased; Talent.
Under normal working conditions; when the bearing receives axial load in any direction; it can form a touch angle; the steel ball and the inner and outer races touch each point; prevent the sliding area from causing large sliding friction. Thus; It is not advisable to accept radial force and load.

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