2013年8月7日星期三

Cylindrical roller bearings tectonic pattern


1. No outer wall and the inner wall N0000 type cylindrical roller bearings NU0000 bearing acceptable such large radial load, high speed limit, do not bind the axial displacement of shaft or housing, can not accept axial load .
2. Inner and outer rings with ribs Cylindrical Roller bearing NJ0000 type, NF0000 bearing shaft or housing can be bound axial displacement in one direction, and can accept a smaller axial load. NU0000 + HJ0000 type, NJ0000 + HJ0000 type, NUP0000 type bearings in the axial clearance of imported bearings shaft or housing areas bondage axial displacement in both directions. And accept a smaller two-way axial load.Comparison of sliding bearings and rolling bearingsRolling
In the work of bearing rolling friction. Rolling easy maintenance, reliable, good starting performance at moderate speeds higher carrying capacity. Compared with the sliding bearing, radial bearing a larger size, poor damping capacity, high speed, low life sound bigger. Rolling in the radial bearings (mainly radial force) usually consists of inner and outer rings, rolling and rolling element cage four parts. Inner sleeve in the journal together with the shaft rotates, the outer ring mounted in the bearing bore. In the inner and the outer periphery of the inner periphery of the outer ring are formed with raceway. When the relative rotation of the inner and outer rings, the inner and outer rings of the rolling element raceway, are separated by the cage, to avoid friction. Thrust bearings are divided into a tight circle and live ring in two parts. Tight circle and sleeve tight, live ring bearing in the bearing housing. Rings and rolling elements commonly used high strength, wear resistance, good bearing steel, surface hardness after quenching should reach HRC60 ~ 65. Cage mostly made of mild steel stamping, copper alloys can also be used bakelite cloth or plastic manufacturing.

没有评论:

发表评论