Double row self-aligning roller bearing in a two roll the inner ring road and the raceway is between the spherical surface of the outer ring, the assembly of a drum shaped roller bearing. The center of curvature of the outer ring of the outer ring is in line with the center of the bearing, so it has the same function as the automatic adjustment of the heart ball bearing. In the shaft, the shell appears to flex, can be automatically adjusted, not to increase the bearing burden.
The axial load of the double row self-aligning roller bearings can bear radial load and two directions. Radial load capacity, suitable for heavy load, impact load. Is the inner diameter of cone bearing, can be directly installed. Or use the fastening sleeve, the disassembly cylinder is arranged on the cylinder axis. Cage, polyamide forming holder and copper alloy car holder.
Double row spherical roller bearings can bear large radial load, also can withstand the axial load. This kind of bearing outer ring raceway is spherical shape, so it is self-aligning performance, when the axial force bending or tilt the inner center line and center of the outer ring line relative slope up to a maximum of 1 to 2.5 degrees bearing can still work.
Double row self-aligning roller bearing was used to carry heavy load and impact load, are widely used in metallurgy, rolling mill, mining, oil, paper, cement, sugar industry.
Double row spherical roller bearings with cylindrical bore and a conical inner hole two. Tapered bore taper 1:12 rear code for K spherical roller bearing type 153000 or 113000 (type) and 1:30 post code for K30 of spherical roller bearing, respectively. This kind of bearing shaft with a conical distribution, inner ring along the axial movement of the bearing can adjust radial clearance. Will post code for K, K30 taper hole self-aligning roller bearing mounted in the tight match sets on, become rear code for K and K30 + H type bearings.
This kind of bearing can be installed on the axis of the shaft without shaft, it is suitable for the occasion that need to be installed and disassembled frequently. In order to improve the lubrication performance of the bearing, the outer ring of the bearing outer ring oil groove and the drilling have a uniform distribution of the three oil holes, the rear code is W33.