I remember the first time I saw this product of rolling bearings, I was curious about how the steel balls inside the bearings were put in, and the steel balls were clamped in the middle, but they would not fall out.
Actually, the principle is very simple. First, follow Xiaobian to understand the structure of the bearing.
Rolling bearings are generally composed of rings (inner and outer rings), balls, sealing rings and retaining structures.
In the bearing industry, this process of putting steel balls between the inner and outer rings is called "assembly" or "fitting". The process is as follows:
A. Prepare the inner and outer rings and place them on one side.
B. Put in the steel ball
C. Splitting, using a ball splitter with small claws to evenly separate the steel balls
D. Place the cage and rivet the two pieces of cage.
Is there a feeling of sudden enlightenment? In addition, in actual production, there are still full-filled, usually with ball-loading gap. It can be seen that there is a ball-loading gap on one side and the steel ball is filled in from that gap. However, the bearing has less ability to withstand axial load and less use.
The following is a very classical production process of bearings: raw materials - inner and outer ring processing, steel ball or roller processing, cage (stamping or solid) processing - bearing assembly - bearing finished products. After reading, you will have a comprehensive understanding of the bearing production process.
Bearing production process flow:
Raw Material-Processing of Inner, Steel Ball or Roller, Outer Ring, Cage (Stamping or Solid) Processing-Bearing Assembly-Bearing Products
Process flow of bearing inner and outer rings:
Bar-blanking-forging-spheroidizing annealing-turning-heat treatment-grinding-superfinishing-final inspection of parts-anti-rust storage
Processing of steel balls:
Cold stamping of rods or wires (some rods need to be stamped with rings and annealed after cold stamping) - contusion, soft grinding or globe - heat treatment - hard grinding - fine grinding - fine grinding or grinding - final inspection grouping - rust prevention, rough grinding, packaging - Warehousing
Roller processing process:
Serial Ring and Soft Grinding after Bar Car Processing or Wire Cold Heading: Heat Treatment - Serial Soft Points - Rough Grinding Outer Diameter - Rough Grinding End Face - Fine Grinding Outer Diameter - Final Grinding Outer Diameter - Final Inspection Group - Antirust, Packaging - Storage
Machining process of cage:
Cast Copper Castings - Car Inner Diameter, End Face, Chamfer - Boring (or Drawing, Boring) - Deburring - Pickling - Final Inspection - Antirust, Outer Diameter, Packaging - Storage
