Precision bearings according to ISO grading standards are divided into: P0, P6, P5, P4, P2. Rank higher in turn, where P0 is the general accuracy, other grades are precision level. Of course, different classification standards, different types of bearings, their classification method somewhat different, but the meaning is to the. The use of performance requirements of precision bearings rotating body with high runout accuracy, high-speed rotation and small changes in friction and friction.
2013年9月10日星期二
The tapered roller bearings can only pass one-way axial load
Tapered Roller Bearings defined Alibaba mechanical 2012-03-19 Source: Alibaba mechanical information themes: mechanical printing machinery] [Alibaba tapered roller bearings can be separated from the inner ring with roller and cage assemblies and components outside ring can be installed separately. Roller and raceway contact at the contact line can reduce the stress concentration. Tapered roller bearings can withstand high radial and axial load. The tapered roller bearings can only pass one-way axial load, so as to pass the opposite direction of the axial load on the need install another with symmetrical tapered roller bearings.
Tapered roller bearing manufacturer is the largest amount of single row tapered roller bearings. In the car's front wheels in recent years to spend the small size of the double row tapered roller bearings. Four tapered roller bearings used in large-scale cold rolling mill and other heavy machines.
Single row tapered roller bearings have an outer ring, the inner ring and a set of tapered roller by a box-type cage into an inner components. Outer and inner component separation, tapered roller bearings according to ISO standard dimensions, any standard model of a tapered roller angular contact ball bearing outer or inner component and the outer or inner components of the same model to achieve international interchangeable. Except that portion of the outer ring of the same model dimensions, tolerances must comply with ISO492 (GB307) requirements, the cone angle of the inner components, component cone diameter must also comply with the relevant provisions of the swap.
Typically, single row tapered roller bearing outer ring raceway of the cone angle of 10 ° ~ 19 ° before to be able to withstand the load and radial load bearing joint action. Cone angle larger axial load capacity are greater. Large cone angle of the bearing, post code plus B, cone angle between 25 ° ~ 29 °, which can withstand greater axial load. In addition, single row tapered roller
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