Axial securing common method of bearing rings -Shuanglian bearing
Source: double bearing Author: Miniature Bearings Release date 2016-02-24 browse: 1395
(1)Hole Spring Collar
BearingThe outer ring installed in the bearing housing, one end of which generally consists of a fixed position on the tank shoulder male and the other end with a cap, the threaded ring and the snap ring and other fastening holes. Shoulder and axial dimensions of the bearing rings and fasteners contact area on the bearing housing, according to the sample size of the bearing installation dimensions listed in the table to determine the various types of bearings.
For all types of centripetalbearingand radial thrust bearings used in high speed bearings, axial load is large. Cover with screws to compress the outer ring of the bearing, the end cap can also carry labyrinth seal.
This small axial position of the fastening method accounted for easy installation and removal, simple to manufacture, to withstand axial load smaller place.Between the bearing and a spring-adjustment ring makes it easy to adjust the axial position.
(2)Threaded ring fastening
Single row with the stopper groove on the bearing outer ringDeep groove ball bearings,with snap ring fastening. When the bearing housing conditions can not be processed because the stopper ribs, or part must be reduced overall dimensions, the choice of this type of bearing.
(3)Snap ring fastening
For high speed bearings, axial load, the case is not suitable for use cap fastened. Radial thrust bearing tightened with a threaded ring, you can adjust the bearing axial clearance.
(4)Cover fastening
Bearing inner ring fastening
In some special cases, the shoulder, and rounded up shaft dimensions not listed in the sample, you can use the transition pad ring for axial support.
(5)Tapered bore bearing fastening
In little axial load bearing speed is not high, the journal cutting threads difficult circumstances, the available cross-section is rectangular circlip fastening. This fastening method of easy assembly and disassembly, the share of small size, low cost.
(6)End faces thrust washer fastening
Tapered bore bearing mounted on a tapered journal discretion is required so that the axial load is always top tight shaft and bearings. If the bearing is not installed in the shaft, and the shaft does not allow threading, inner groove in this case are available in half and close the threaded ring card to the shaft, and then tighten the nut bearing. When installed, the taper bore is directional, such as bearings and shaft is located in the shaft allow threading nuts can be used directly.
For the speed is not high and steady radial load bear double row axial load with little radial spherical bearings, adapter sleeve mounted on the optical axis with the cone; apply tight nuts and washers fastening stop using nut locking sleeve bearings have been tightly fastened.
(7)With adapter sleeve fastening
When the bearing inner ring mounted on the shaft, usually by the shoulder on one side of the fixed bearing position; the other side with nuts, washers and spring rings tightened. Shoulder and axial bearing ring fastener size and the contact portion of the bearing can be basic dimensions listed in the table to determine the dimensions of various types of bearings.
For the journal cutting threads difficulties, high speed bearings, axial load is large, the shaft washer fastened with two screws with washers or locking wire.
(8)Fastening shoulder and rounded at the non-standard
(9)Fastening shaft circlip
(10)For high speed bearing, bear under large axial load occasions, to the axis perpendicular to the axis of rotation of the nut end surface in contact with the bearing ring, tighten the nut otherwise would undermine the proper installation position of bearings, bearing rotation accuracy and reduce life, especially with the bearing bore and shaft when the fit is loose even more strictly controlled. To prevent the nut loose during rotation, to take appropriate measures against loose, use a slotted nuts and washers securing the bearing to prevent the nut loose. Fastened within the internal teeth into the shaft keyway to the washer, then the term of external teeth bent into a nut bad mouth.