Deep groove ball bearing main parameter size table

No. 1, domestic new model: 6300; domestic old model: 300; inner diameter (mm): 10; outer diameter (mm): 35; width (mm): 11; Cr (kN): 7.65;

Cor(kN): 3.48; grease lubrication speed (r/min): 18000; oil lubrication speed (r/min): 24000; weight (kg): 0.053;

No. 2, new domestic model: 61801; domestic old model: 1000801; inner diameter (mm): 12; outer diameter (mm): 21; width (mm): 5; Cr (kN): 1.90;

Cor(kN): 1.00; grease lubrication speed (r/min): 24000; oil lubrication speed (r/min): 32000; weight (kg): 0.006;

No. 3, domestic new model: 61901; domestic old model: 1000901; inner diameter (mm): 12; outer diameter (mm): 24; width (mm): 6; Cr (kN): 2.90;

Cor(kN): 1.50; grease lubrication speed (r/min): 22000; oil lubrication speed (r/min): 28000; weight (kg): 0.011;

No. 4, domestic new model: 16001; domestic old model: 7000101; inner diameter (mm) 12:; outer diameter (mm): 28; width (mm): 7; Cr (kN): 5.10;

Cor(kN): 2.40; grease lubrication speed (r/min): 20000; oil lubrication speed (r/min): 26000; weight (kg): 0.024;

No. 5, domestic new model: 6001; domestic old model: 101; inner diameter (mm): 12; outer diameter (mm): 28; width (mm): 8; Cr (kN): 5.10;

Cor(kN): 2.38; grease lubrication speed (r/min): 20000; oil lubrication speed (r/min): 26000; weight (kg): 0.022;
For more products, please visit: http://www.supplyforever.com/

Rolling bearing steel and its heat treatment

The heat treatment process generally includes three processes of heating, heat preservation and cooling, and sometimes only two processes of heating and cooling. These processes are connected to each other and cannot be interrupted. Heating is one of the important steps in heat treatment. There are many heating methods for heat treatment of rolling bearing steels. The first use of charcoal and coal as heat sources, and the application of liquid and gaseous fuels. Electrical applications make heating easy to control and environmentally friendly. These heat sources can be used for direct heating, or by indirect heating of molten salt or rolling bearing steel or floating particles. When the rolling bearing steel is heated, the workpiece is exposed to the air, and oxidation and decarburization (ie, the carbon content on the surface of the steel part) often occur, which has a detrimental effect on the surface properties of the parts after the heat treatment.

Therefore, the rolling bearing steel should generally be heated in a controlled atmosphere or a protective atmosphere, in a molten salt and in a vacuum, or by a coating or packaging method. Heating temperature is one of the important process parameters of heat treatment process. Selecting and controlling heating temperature is the main problem to ensure the quality of heat treatment. The heating temperature will vary depending on the material of the rolling bearing steel being treated and the purpose of the heat treatment, but is generally heated above the phase transition temperature to obtain the desired structure. In addition, the transformation takes a certain period of time. Therefore, when the surface of the rolling bearing steel workpiece reaches the required heating temperature, it must be kept at this temperature for a certain period of time, so that the internal and external temperatures are uniform, and the microstructure is completely transformed. This period of time is called the holding time.
For more products, please visit: http://www.bearingkingdom.com