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The bearings are banding holder and two without a frame structure to maintain. Including large thrust tapered roller bearings are generally required to withstand a greater load, often without the cage, but in between the inner and outer raceway full rolling elements. Most are small and medium sized rolling bearing with a cage.
INA bearings in the machining process, the bearing outer ring, the inner ring, rolling elements and cage is how attached to a piece. Simply put, that is, first bearing inner and outer rings away, they put aside the inner ring, and then put the rolling element (aside) and adjust the position of the rolling elements, and finally, put the cage. Now we all know, the thrust tapered roller bearings in the process is also a holder participation, then the bearing cage is mainly in the end play what role?
1. Adjust washer method:
INA bearings between the end face of the bearing cap and fill to put a set of soft material (soft steel or flexible paper) pads; adjustment, first hold the bearing cover gasket mounted on one side evenly tighten the bearing cap screws hand side rotation shaft until the bearing rolling elements in contact with the outer ring inside the shaft without a gap so far; then measuring thrust tapered roller bearings cover a gap between the end faces and the bearing, together with the bearings in normal operation axial clearance when needed; this is required to fill the place of the total thickness of the spacer, and then prepared to fill in the spacer between the bearing cap and the bearing face, and finally tighten the screws.
2. Adjustment bolt method:
The pressure in the pressure ring INA bearing outer ring, adjusting bolt pressure; pressure adjustment before, we must first measure to adjust the pitch of the bolt, and then slowly tighten the adjustment bolt until the internal bearing no gap up, and then calculate adjust the rotation angle bolts. For example pitch of 1.5mm, thrust tapered roller bearing clearance required for normal operation, then adjust the desired angle of rotation bolt 3600 × 0.15 / l.5 = 360; then reverse the adjustment bolt 360, miniature bearings would receive 0.5 mm axial clearance, and then use the stop washer to be fixed.
NA Bearing called the window, used to isolate and guide the rolling elements, cage pocket clearance for the radial and axial a certain amount of activity, the total amount of activity is called radial clearance cage. In the roller cage has a variety of structure types, complex shape. Many equidistant holder pocket, the pocket has a spherical shape, round, oval, rectangular and tooth type, etc., its size is larger than the size of the rolling elements, the difference between the pocket gap, sometimes roll cage window the connection between the parts called lintels, which serve to connect and increase the strength of the cage effect.