Selection of bearing layout

Source: Bearing network time: 2013-03-11

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The type of machinery is different; the operating conditions of the bearing will be different; the functional requirements are not the same; but in general; the bearing used on one shaft is not less than two. And; for easy axial positioning; Most of the bearings are used as fixed end bearings; others are used as free end bearings. The following table lists the selection of fixed end and free end bearing layouts.
The bearing type fixed end bearing is suitable for axial positioning and fixing of bearings. Bearings that can accept radial and axial loads are accepted to receive bidirectional axial load. The device also needs to consider the corresponding strength according to the axial load. Deep groove ball bearing combined angular touch ball bearing double row angular touch ball bearing self-aligning ball bearing with rib cylindrical roller bearing (NUP type, NH type)
Double row roller bearing Spherical roller bearing free end bearing is used to avoid the elasticity of the shaft caused by temperature change during operation; and to adjust the axial orientation of the bearing. It is recommended to accept only radial load and inner ring and outer The ring can be separated from the bearing.
When using non-detached bearings; the gap between the outer ring and the outer casing is usually selected; so that the shaft can be elastically escaping together with the bearing. Separate cylindrical roller bearings. NUP type, NH type)
Non-displacement deep groove ball bearing combination angular touch ball bearing. Å«è¶å€æ¥¹å¸Œ double row angle touch ball bearing self-aligning ball bearing double row tapered roller bearing (3700) type spherical roller bearing without fixed end and free end When the bearing distance is small and the influence of shaft elasticity is not large; two angle touch ball bearings or tapered roller bearings that can accept axial load are used for front or back equipment.
Adjust the axial clearance after the device with nut or washer. Deep groove ball bearing angular contact ball bearing self-aligning ball bearing cylindrical roller bearing. NJ type, NF type)
Tapered roller bearing Spherical roller bearings are used for the vertical shaft when the fixed end is used to receive the bearing with radial load and axial load. When the axial load of the bearing is large, the thrust bearing and the radial bearing are used together.
Use the bearing with only radial load at the same free end; to avoid the elasticity of the shaft. Fixed-end combined angular touch ball bearing (reverse combination)
Double row tapered roller bearings (37000 type)
Thrust bearing and radial bearing

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