single-row  taper roller bearings

         These bearings can only limit the axial movement of either the  shaft or the houusing in one direction,

and can carry axial load in one direction. When with only radial load, the axial forct two of the bearings be

put in face-to-face or back-to-back arrangements in application.

         Double-rom taper roller bearings

         This design can make the bearing carry radial load and simultaneously the axial load in dou ble direc

tions . ls possible to limit  the axial movement of the shaft or the housing indouble directions within the sco

pe of the axial load clearanse.

            Four-row taper roller roller bearings

           The  functions and features of these bearings are basically the same as those sf the double-row design.

However, they can carry heavier load than the double-row taper roller bearings,but with slightly slower rotaional

speed. Applications of these bearings can be found in the heavy machines suchas the rolling mills.

            Cages

            Normally these taper roller bearings use pressed basket-shaped cages of steet. But for cages with grea

ter machined dimension, cages are also used.

            Permissible misalignment

            Usually for taper roller bearings there should be nomisalignment between the shaft and the housing bore .

 Whenthere is misalignment, the angle should under no circumstances be grater than2'.

           Clearance

           Single-row taper roller bearings have clearance only when they are mounted, and the clearance can be defind

only when another bearing is located next to it in the opposite direction after tuning.For double-row and four- row taper

bearings the clearance can be provided  according to the requirements and relative standards.

           The equivalent dynamic load

           P=Fr                                          [kN]Fa/Fr≤e

           P=0.4Fr+YFa                           [kN]Fa/Fr＞e

           Single-row taper roller ball bearings can be used in pairs(their basic dimensions may differ), and when calculating

the radial load must be calculated and taken into consideration. The additional force S of single-row taper beraings can be

approximately calculated according to the following formula:

                                                 S=Fr/2Y

            For double-row and four-row taper roller bearings

             P=Fr+Y1Fa                                                     [kN]Fa/Fr≤e

             P=0.67Fr+Y2Fa                                             [kN]Fa/Fr＞e

           The equivalent static load

          Single-row taper roller bearing

                   Po=F+0.5Fr+Y0Fa             [kN]

                  If  Po＜FR，then let Po=Fr

           Double-row and four-row taper roller bearings

                    Po=0.5Fr+Y0Fa             [kN]

           Both Fr and Fa indicate the total load working in the single-row and double-row and four-fow taper bearings.

The fators e, Y,Y1,Y2,Y0 are listed in bering dimension tables.

          There are also inch-sized bearings.

          Applications of these bearings are found in automobile wheels(both rear and front),variable speed devices, differential

mechanisms,small gear shafts,machine tool spindles, construction machines, large-sized agricultural machines, gear dec

eleration devces for railway vehicles, and the small deceleration devices for mill roll necks.

Wafangdian PengLi Bearing manufacturing Co.,ltd

Sales department : Zrank Zhang

Tel:0086-0411-85589390   E-mail: frank@wplbearing.com