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1、 Specific definition of bearingsBearings, known as the "food of the mechanical industry", are indispensable key components in modern mechanical devices. From high-speed cars and airplanes to common household appliances such as refrigerators, vacuum cleaners, and air conditioners in daily life, bearings play a crucial role. Its existence ensures the smooth operation of rotating components, thereby achieving efficient energy conversion and transmission.A bearing is a component that helps an object rotate.

In the wave of global industrial development, bearings, as key basic components, silently support the efficient operation of various mechanical equipment and are essential "joints" in the industrial sector. In order to meet the diversified needs of customers, assist enterprises in going global, and achieve zero distance across regions, the Chinese manufacturing platform has planned a live streaming event called "Super Going Global Season". We are honored to participate in this upcoming event and will be waiting for you in the live broadcast room.

1. Overheating Overheating of the microstructure after quenching can be observed from the rough mouth of the SFC bearing parts. But to accurately determine the degree of overheating, it is necessary to observe the microstructure. If coarse needle like martensite appears in the quenched structure of GCr15 steel, it is a quenched overheated structure.

Annealing, also known as simmering, code name Th, is the process of heating a steel piece to Ac1 or Ac3 or above (30-50 ℃), holding it for a period of time, and then slowly cooling it (usually using furnace cooling).Normalization, also known as open flame, code Z, is the process of heating steel parts to Ac3 or Acm or above (30-50 ℃), holding them for a period of time, and then cooling them in air at a slightly faster cooling rate than annealing.The main difference between bearing annealing and normalizing is that normalizing is a deformation or special case of complete annealing, and the only

The Chinese Lunar New Year has ended with the sound of firecrackers,and factories have started construction one after another.In the new year,hope everyone has a wide range of financial resources. We will continue to work together and create excellent results. 

Against the backdrop of increasingly fierce competition in the global manufacturing industry, technological breakthroughs in domestically produced bearings have attracted widespread attention. On October 5, 2024, a well-known bearing manufacturing enterprise in China officially announced the launch of its new generation of high-precision bearing products at a press conference held in Beijing, marking a qualitative leap in China's technological level in the field of bearing manufacturing, and the accuracy has risen to the international advanced level.

On July 12th, the 2024 China Automotive Forum with the theme of "Leading New Changes and Win Win New Future" was successfully held in Shanghai. As a leading enterprise in the global bearing industry, SKF has won the "Green Development" award in the "2024 China Automotive Industry Sustainable Development Practice Case Selection" for its case study "Green Drive, Innovative Bearings Help New Energy Vehicles on their Low Carbon Journey".

Cast iron bearing seatAdvantages:Low cost: Cast iron materials are relatively inexpensive and suitable for situations with limited budgets.High hardness: In ordinary cutting processes, the hard and brittle nature of cast iron makes cutting easier.Suitable for low-speed, light load, and situations that do not require high-precision operation: The brittleness of cast iron may cause it to fracture when impacted, making it unsuitable for high-speed or heavy-duty environments.Disadvantages:Poor toughness: prone to rupture under heavy loads or high-speed operation.Not suitable for harsh environments

When designing and manufacturing rolling bearings, the selection of bearing materials is generally based on the following principles.1、 Select according to the working conditions of the bearings①. Working temperatureBearings working at room temperature are made of chromium bearing steel. Chromium bearing steel is also used for working temperatures above 150 ℃ and below 250 ℃, but it needs to undergo special heat treatment (requiring tempering at 200 ℃ or 300 ℃).②.

Process flow of bearing outer ring processing: Bearing steel ->Forging ->Annealing ->Turning ->Heat treatment ->Grinding ->Assembly ->Inspection ->Packaging and warehousingThe purpose of forging technology1. Forming: Control reasonable turning allowance.2. Obtain a high lifespan forging streamline distribution to ensure bearing life.3. Obtain the ideal metallographic structure and prepare for annealing and quenching.The purpose of annealing process1. Reduce hardness and prepare for machining.2. Obtain the ideal metallographic structure and prepare for quenching.3.