Convex Plastic Roller: Hebei Naimei Bearing Co., Ltd. produces kinds of Convex plastic rollers. It could be standard bearing 608 or 626 or other types injected with plastic material of POM or Nylon. Or, it could also be non-standard bearings injected of plastic materials. It is used widely in sliding applications, such as sliding doors, sliding windows, shower doors, glass doors, aluminium doors or furniture wheels, etc,is also called shower sliding door roller. Convex plastic rollers are very multi-functional. Right now, our products are being exported to Brasil, Spain and Turkey, with good credit.
Hebei Naimei Bearing Co., Ltd. produces types of plastic bearing rollers:
1). Material: Carbon Steel/ Chrome Steel Bearing + Plastic( POM/ NYLON) Injection;
2). Application: for Aluminium Door and Windows; Aluminium Hardware Accessories and other sliding applications;
3). Plastic Color: Various, as per Request;
-- For any detailed inquiry of Non-Standard Bearing rollers, pls contact us freely. We will make a response within 12 hours.
Sliding Plastic Roller - Factory Direct Hot Sale
Bearing rings: Dimension tolerance, geometric tolerances, and surface quality of bearing` s working surface will influent the operating noise. Naimei Bearing adopts precision CNC machining to dimension precision, geometric tolerances, design drawing, mold making, grinding, cleaning, assembly, testing, every link of strict checks, so as to ensure all our products are tested by our strict criteria.
Balls: The balls evenly with by the cage, often make rolling movement between 2 rings. The shape, size and number will directly influent bearing`s load tolerance and operating capability. We use high precision, small vibration steel ball. It`s surface must be strengthened, no bumps scratches, lacerations, pitting and notch.
Cage: Enclose and move with all or part of the balls. It also be used to insulate the balls, guide the balls` movement and to improve lubrication performance inside the bearing., etc. Naimei Bearing`s cage is commonly made of cold rolling carbon steel. But in the corrosiveness environment, nonparallel or high-speed situation, stainless steel, engineering plastics cagecan be decided on request.
Seal: Naimei Bearing adopts different kind of seal material to meet the requirement of their operating in high temperature and being compatible with grease. Acrylonitrile-butadiene rubber is our standard material. but in high temperature environment ,often adopt fluorocarbons, silicone , PTFE shield.
Convex Plastic Roller Convex Plastic Roller,Sliding Furniture Roller,Bearing Furniture Roller,Plastic Roller Ball Bearing Hebei Naimei Bearing Co., Ltd. , http://www.nmn-bearing.com
Analysis of the Status Quo of the Development of Hydraulic Machinery Manufacturing in China
China's hydraulic machine manufacturing status: Forging equipment is a forming machine tool, hydraulic machine is one of the important members. According to the industry statistics released by the China Machine Tool Industry Association in recent years, the market capacity of China's forging equipment is close to 70 billion yuan, while the hydraulic machine, which accounts for 30% of the forging equipment, has a market capacity of about 20 billion yuan. As for the number of hydraulic press manufacturers, although there is no exact statistical data, it is estimated that there are nearly a thousand. Mainly state-owned restructuring enterprises and private enterprises.
At present, China's hydraulic machine products continue the two classification methods of small and medium-sized hydraulic machines. First, it is divided into two categories according to product use: general and special. The second is divided into general, large and heavy according to the weight of the product itself. The weight of 10 tons or less is called a general hydraulic machine, the weight is 10 to 30 tons, which is called a large hydraulic machine, and the weight is more than 30 tons. It is called a heavy hydraulic machine.
The manufacture of general-purpose, medium and small-sized four-column hydraulic presses is mainly for small and medium-sized private enterprises of less than 100, and has obvious product price advantages in the low-end and mid-end markets. In Baipu Town, Rugao City, Jiangsu Province, there are nearly 50 general-purpose hydraulic press manufacturers, with annual sales of nearly 1.5 billion yuan.
The manufacture of special-purpose and heavy-duty hydraulic press products is concentrated in enterprises with strong strength. The area forming hydraulic press used in the automotive industry is mainly based on the hydraulic machine manufacturing enterprises belonging to the former Ministry of Machinery Industry; the volume forming hydraulic press used for forging is mainly composed of backbone enterprises and heavy machinery enterprises.
China's hydraulic machine manufacturers have strong product variety, performance and appearance similarity. The backbone enterprises can produce almost all kinds of single-machine products for the main process in the multi-process forming process, but they lack special, fine, special products and complete sets of line products. Before the delivery of hydraulic press products, due to the lack of process verification stage, the company often falls into the embarrassing situation of “the product is not factory-safe, and it is troublesome after deliveryâ€.
The status quo of hydraulic machine manufacturing industry in industrialized countries. The hydraulic press products manufactured by industrialized countries such as Germany, Japan and France represent the international advanced technology level of contemporary hydraulic presses. Most of the hydraulic machine manufacturers in these industrialized countries have the following three distinctive features:
The first is to lock the target market and serve the professional forming process. German hydraulic press manufacturers target the modern mass production of automobiles, machinery parts and household appliances. For example, Germany's DORST Technology Co., Ltd. specializes in the development of hydraulic presses for powder metallurgy products, Germany's Dieffenbacher specializes in FRP hydraulic presses, and Schuller's SMG in Germany produces plate areas for automotive manufacturing. The hydraulic machine for forming and forming metal volume is mainly used. In the early 1990s, Tianjin Ford, CITIC and German SMG jointly established the Tianjin Nande Press Co., Ltd. in Tianjin Development Zone to produce such products.
Japanese hydraulic press manufacturers also target mass manufacturing industries such as automobiles and serve a variety of forming processes. For example, Japan's Amino Co., Ltd. is mainly engaged in the production of hydraulic presses for the manufacture of automotive panel molds and hydraulic presses for automotive liquid-filled parts. In the mid-1990s, Tianshun cooperated with ah Minuo Co., Ltd. to produce four hydraulic presses and a test hydraulic press for the Tianjin Automobile Manufacturing Plant's mold center project.
The second is to provide complete process forming process equipment. Hydraulic machine manufacturers in industrialized countries pay attention to the forming process market, provide multi-stage equipment, and provide complete service for multi-process forming process through automatic connection between processes. For example, the refrigerator compressor casing production line successfully developed by SMG in Germany in the 1980s covers all processes such as unwinding-leveling-conveying-punching-stretching-drilling-stacking, and manufacturing 13 shells per minute. Or 15 covers.
The third is to focus on product forming process research and process validation. German hydraulic press manufacturers pay great attention to the research of product use technology and have the right to speak in the forming process. For example, Dieffenbacher GmbH is not only a manufacturer of FRP hydraulic presses, but also a manufacturer of FRP products using FRP hydraulic presses, so that it has sufficient use process verification, which can greatly meet the user's use process requirements.
Second, the inspiration of China's hydraulic machine innovation design and application
The "YT71S-25000 kNB FRP products CNC hydraulic press complete sets of equipment" developed by Tiandeng Press Co., Ltd. is the only machine tool product of the 32 national strategic plan innovative products of the 2013 new product plan: "AT-type guide hydraulic press CNC production line" Won the 2013 China Machinery Industry Science and Technology Award: "Titanium Electrode Preparation CNC Hydraulic Press Production Line", which is the first in China and has become the representative of China's hydraulic machine innovation design. The forming process applicable to these lined equipments may bring the following enlightenment to the transformation and upgrading of China's forging equipment industry:
First, provide forging equipment for the “non-metal forming process†industry. Modern mass production industry requires not only advanced metal forming process forging equipment, but also non-metal forming process forging equipment. The "YT71S-25000 kNB FRP products CNC hydraulic press complete sets" developed by Tiandeng has been widely used in the field of FRP composite molding, which has fully demonstrated this point. However, some enterprises in the field of forging equipment manufacturing in China still regard the service of “metal forming process†as the only option, and do not pay attention to the development of forging equipment required by the “non-metal forming process†industry.
Second, provide forging equipment to the “upstream forming process†industry. For many years, China's forging equipment manufacturing industry has become accustomed to serving the "metal forming process" industry after the formation of metal, and rarely pays attention to the development of forging equipment required by the "upstream forming process" industry. In fact, as a modern mass-produced material industry and metallurgical industry, in the process of forming materials such as metals, advanced material forming process forging equipment is also required. In this regard, Tianshou has a successful case. They developed the "Titanium electrode preparation CNC hydraulic machine production line", because it can successfully crush the titanium sponge particles into sponge blocks, and then into titanium ingots, and quickly became popular in the "upstream forming process" industry.
Third, the complete set of equipment for the advanced forming process. Tian Forging is a "AT-type guide hydraulic press CNC production line" developed by the continuous formation of more than a dozen high-speed railroads. It successfully solved the problem of high-speed rail formation and made important contributions to China's high-speed rail technology reaching the international advanced level. This alone is enough to show that the emerging technology industry also needs advanced forming processes, and advanced forming processes require advanced sets of forging equipment.
Third, the direction of transformation and upgrading of forging equipment manufacturing industry
Through the analysis of enterprise characteristics of forging equipment industry at home and abroad, combined with the enlightenment of new product development of forging equipment in China, we can draw the following conclusions: China's forging equipment manufacturing products need to be upgraded, and China's forging equipment manufacturing enterprises must transform.
First, to meet the urgent needs of modern manufacturing, timely development of "specialized, refined, special, new" forging equipment. The urgent demand for advanced forming technology in modern manufacturing industry provides an unprecedented market opportunity for the transformation and upgrading of the forging equipment industry. Automobiles, ships, power generation, aerospace, high-speed rail, new energy, IT industry, materials industry, offshore equipment and other strategic emerging industries require not only “metal forming process†equipment, but also “non-metal forming†equipment and “new type†Forming process" equipment.
Secondly, it is freed from the stand-alone products that satisfy the main process, and develops the complete set of line automatic forging equipment required for the production of advanced forming processes. The modern manufacturing industry with the characteristics of “equipment automation, high production efficiency, high product quality, low cost and low energy consumption†is supported by advanced forming processes, and advanced forming processes are often composed of multiple processes. Therefore, China's forging equipment manufacturing industry should accelerate the transformation and upgrading from a single machine to a complete set of lines.
Third, master advanced forming processes and develop forging equipment with all core technologies. The purchase of forging equipment by the user is essentially a function of purchasing the forging equipment. Whoever has the full requirements of the forming process and controls its core technology will have the right to speak in the market. In order to achieve transformation and upgrading, China's forging equipment manufacturing industry must increase research on advanced forming processes, develop equipment that meets the requirements of advanced forming processes, and form parts by forming processes—forming dies—forming equipment. The comprehensive innovation of coupling enables the forging equipment to have all independent intellectual property rights.
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