Brief introduction: eccentric bearing ring integrated thrust needle roller bearing

      The eccentric bearing ring integrated thrust needle roller bearing realizes the long life of the bearing ring by adopting the following three measures while achieving the integral structure of the bearing ring. (1) Designed in the bearing ring to prevent surface damage caused by the reduction of lubricating oil. Guide groove. In addition, its integral structure is realized by using a bearing ring arm claw structure and an ingot structure. By minimizing the number of parts, not only does the cost increase, but it also facilitates the assembly work for the customer. (2) In order to make the gap between the bearing retainer and the bearing ring in the radial direction larger than the eccentric amount, the internal structure is improved; (3) using the fem analysis to optimize the shape and thickness , increasing the strength of the retainer;

      With the integrated structure of the bearing ring, the life of the eccentricity within 0.5mm is extended to more than four times that of the old product by improving the internal structure. For the use of torque converters and other eccentric conditions, Japanese bearing manufacturers have developed and introduced "eccentric bearing ring integrated thrust needle roller bearings".

Therefore, there are two requirements in the market: (1) allowing large eccentricity and long life; and (2) integrating the bearing ring and the retainer for the purpose of embedding. However, the bearings of the old structure can not meet these two functions. Either even if large eccentricity is allowed, the structure is still separate; either a one-piece structure is used, but a large eccentricity is not allowed. Thrust bearings used in the installation of the engine and torque converter are usually installed with the engine and torque converter in an eccentric condition. If eccentricity is not allowed, the bearing ring guard and the retainer will become hot and cause wear.

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Bearing inner packaging specifications

    Bearing packaging summary: bearing packaging, inner packaging, outer packaging, bearing manufacturing, inspection, qualified, cleaning, anti-rust treatment, packaging, waterproof, moisture-proof, dustproof, impact, maintenance, bearing quality, accuracy, convenient use, sales, bearing, packaging, rust prevention, rust-proof packaging, rust prevention Applicable to large-scale delivery of the same subscriber short-term use of the bearing agreement between the two parties to facilitate the use of the principle of simple packaging 2002: machine tools, accession to the WTO is a challenge is an opportunity. Experts pointed out that we must increase the research and development of CNC machine tools in China to accelerate the development of popular CNC machine tools. Manufacturing service competition China's milling machine and machining center market status and prospects Domestic and foreign lathe technology level and development direction World processing center production, demand and development trends Domestic and international machine tool development trends World CNC system development trends Cutting technology and CNC machine tools development of.

The bearing package is divided into inner and outer packaging.

After the bearing is manufactured and tested, it is cleaned and rust-proofed, and then placed in the inner packaging to achieve waterproof, moisture-proof, dust-proof, shock-proof, maintenance bearing quality and precision, and convenient use and sales. .

The inner packaging of the bearing is divided into three categories according to the anti-rust period:

1 Short rust-proof period Packing: The rust-proof period is 3 to 6 months. It is suitable for bearings that are shipped to the same subscriber in large quantities and put into use in a short period of time. According to the agreement between the two parties, the principle of convenient use is adopted, and simple packaging is adopted. 2 general anti-rust period packaging: anti-rust period of one year, suitable for general purpose bearings. 3 long anti-rust period packaging: anti-rust period of two years, suitable for special and precision bearings.

The inner packaging material of the bearing is polyethylene plastic tube (box), kraft paper, plain and wrinkle polyethylene composite paper, carton, polyethylene or polyethylene plastic film, nylon fastening tape or plastic fastening tape, waterproof high-strength plastic tape , linen bags, etc. All of the above materials are required to ensure that the corrosion resistance of the material is tested.

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