Rolling mill bearing device and protection (2)

Source: China Bearing Network Time: 2013-10-07

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(3) The outer ring of the four-row cylindrical roller bearing of the outer ring of the device and the inner hole of the bearing seat are usually the transitional cooperation; for the smaller type of bearing; the outer ring and the whole of the roller and the holding frame can be lightly polished with a copper rod. Knock into the bearing housing. For larger bearings; use the outer ring or the lifting holes provided on the bracket; lift the outer ring and outer ring assembly; straight down into the bearing housing.
For FCDP type four-row cylindrical roller bearings with live ribs; side retaining ring, outer ring assembly, middle retaining ring; the same type of bearing should not be exchanged.
The I, II, III, and IV symbols on the end face of the outer ring are the marks of the load zone. When the primary device is used, the direction of the rolling load should be aligned with the first symbol; the rolling load can be smoothed when the device is removed and reassembled in the future. Align the Other symbol marks to extend the bearing life.
3, thrust thrust (positioning) bearing thrust bearing has four-point ball bearing, double row (single row) angle bracket ball bearing; two-way thrust cone and cylindrical roller bearing; è¿©æ¥ The company also developed the brake roller bearing direction Force bearing.
Four-point angle ball bearings and double (single) row-angle touch ball bearings are used as thrust bearings; the bearings are forbidden in the radial direction; therefore, the inner holes of the bearing housing correspond to the parts of these bearings; the diameter is necessary to be outside the bearing. The diameter is about 0.5 mm or the diameter of the roller is less than about 0.5 mm of the inner diameter of the bearing.
For four-point ball bearings; do not exchange the same type of ring when the device is installed to prevent changes in the axial clearance at the factory.
Two-way thrust tapered roller or two-way thrust cylindrical roller bearing spacer circle; the same type of bearing must not be exchanged; to prevent changes in the axial clearance when leaving the factory.
It is necessary to press the end device of the inner ring of the thrust bearing; and the axial direction should be locked to prevent its relative transformation on the roll neck; the wear and burn of the roll neck cooperation surface are formed.
The axial force bearing of the brake roller is axially positioned through two bearing housings; and the axial clearance is adjusted. When the bearing housing is installed; the inner and outer rings of the bearing should be tightly attached to the inner and outer rings of the main bearing. When the frame is axially fixed to the two bearing housings; care should be taken to eliminate the axial movement of the bearing housing to the axial end in the process of introducing the two bearing housings into the frame.
4, four-row tapered roller bearing device four-row tapered roller bearing inner ring and roll neck cooperation is usually with a gap; the device first put the bearing into the bearing box; then the bearing box into the journal.

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