The single-row four pionts contact ball Slewing Bearing is composed of two seat-rings.It features compact in design,light in weight,the balls contact with the circular raceway at four points,via which the axial force,radial force and resultant moment may be born simultaneously.It may be used for slewing conveyers,welding operating consoles,light,medium duty cranes,excavators and other engineering machines.

Note:

1.nl-number of lubricating holes,evenly distributed,lubricating nipple M10*1 JB/T7940.1-JB/T7940.2.

2.Mounting hole n-¦µ,may be replaced with screw hole,tooth width b may be taken as H-h.

3.Gear force of periphery given in the table is its maximum value,nominal force of periphery is taken 1/2 of the given value.

4.The spaceshift coefficient given in the tolde is the data of outer tooth,while that of inner tooth is +0.35.