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Layout characteristics of Category 6 angular touch ball bearings
Source: China Bearing Network Time: 2017-10-30
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These bearings are suitable for double support shafts with small support distance and good rigidity.
The primary layout methods for angular touch ball bearings are: single row angular touch ball bearings, double row angular touch ball bearings and angular touch ball bearings in pairs, four-point touch ball bearings.
Single-row angular touch ball bearings are available in both separate and non-detachable types. The base type of the contact ball bearing is S70000. The SN70000 type can be separated from the inner ring; the inner and outer rings can be separated from the device; Constrained parts. The inner and outer rings of the ball bearings cannot be separated; the touch angles are different from 15o, 25o, and 40o; the angular touch ball bearing locks can be divided into inner or outer rings. The limit rotation speed of the bearing on the inner ring is higher than the limit rotation speed of the bearing on the outer ring.
Single-row angular touch ball bearings can only accept axial loads in one direction; when receiving radial loads; cause additional axial forces; it is necessary to apply corresponding reverse axial loads; therefore, these bearings are usually used in pairs.
Double row angular touch ball bearings can accept large radial and axial combined loads and moment loads mainly based on radial loads; it can constrain the biaxial axial displacement of the shaft or casing; the touch angle is 30o.
Paired device angular touch ball bearings are composed of two sets of standard single row angular touch ball bearings in different combinations; according to the combination of outer ring end faces can be divided into: series equipment (70000/DT), back-to-back equipment ( 70000/DB) and face-to-face equipment (70000/DF) three types.
The bearings can accept radial and axial combined loads with radial loads; they can also accept pure radial loads. Series equipment can only accept axial loads in one direction. The other two devices can accept either direction. Axial load. This type of bearing is usually submitted to the user by the manufacturer's optional combination; there is preloading and interference after the device; the ferrule and the steel ball are in the axial preload condition; thus the whole set of bearings is improved. Support stiffness and rotation accuracy as a single support.
The four-point touch ball bearing can be separated from the bearing. The QJ0000 type (17600 type) has a double semi-inner ring; the QJF00 port type (116000 type) has a double semi-outer ring; the touch angle is 35o; no load and pure radial load effect Time; four points of touch in the steel ball and the ferrule. Under the pure axial load effect; the steel ball and the ferrule are two-point touch; the two-way axial load can be accepted. The bearing can also accept the moment load; both single row and The function of the double row angular touch ball bearing. This kind of bearing can only ensure normal operation as long as it constitutes two touches.
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