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Analysis of the basic types and characteristics of single-row angular touch ball bearings
Source: China Bearing Network Time: 2018-02-06
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Single row angular contact ball bearings Single row angular contact ball bearings are capable of accepting radial and axial loads. These bearings can only accept one-way axial loads; they can be combined with another bearing that accepts reverse loads. Bearings cannot be split. Angle touch ball bearings are suitable for high speeds; their active centering is very limited.
Single row angular touch ball bearings The basic type 72B and 73B FAG single row angular touch ball bearings have a touch angle of 40°; thus it can accept large axial loads.
Public service:
Type 72B and 73B FAG single row angular touch ball bearings are manufactured according to general public service (public service grade PN; no suffix)
Cage Most angular touch bearings are equipped with a cage made of fiberglass-reinforced nylon 66 (suffix TVP). This cage can be operated at temperatures below 120 ° C. If the bearing is smooth, the oil is smooth. Additives can affect the life of the cage; and at high temperatures; aged oils can also shorten the life of the cage; therefore; it is necessary to strictly follow the oil change cycle. Use the angular contact ball bearing oil of the machined brass cage Suffix MP.
The operating speed of the bearing is suitable; the speed of the bearing can be higher than the reference speed; but it can not be higher than the limit speed. When formulating the thermal speed, the effect of the special working environment should be fully considered. If the angular contact ball bearing is directly Side-by-side units are subject to special measures to reach the high speed of a single bearing.
The heat-treated FAG angular touch ball bearing can be operated at a temperature not higher than 150 ° C after heat treatment. Bearings with an outer ring diameter larger than 240 mm can work at temperatures not higher than 200 ° C. If nylon cage is used; bearing operation The temperature is subject to the cage data.
Single-row angular touch ball bearings with universal layout and common layout are often used in pairs; the placement methods are: X-type (face-to-face placement), O-type (back-to-back placement), and T-type (series placement). The following adjustment types can also be selected:
(1) Axial clearance is reduced in UAX and O-type placements. (2) Axial clearance in UOX and O-type placement is zero. Small axial clearance and zero axial clearance are in the non-device state; Cooperation will reduce the axial clearance of the bearing of the paired device. 订货. When ordering the general layout bearing; please inform the number of individual bearings; not the bearing logarithm and the number of bearing sets.
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