For the 3D drawing, we prefer to STEP, IGS or X_T format. The maximum supported file size is 10MB, For larger or multiple files please place into one folder and compress into a ZIP or RAR file and sent to info@aubearing.com

Non-metallic cage materials mainly include polymers and composite materials, including nylon, phenolic tape, polytetrafluoroethylene, etc. Polymer materials have a good match of strength and elasticity. The good sliding properties allow the polymer cage to generate only a small amount of friction when it moves relative to the lubricated rolling element surface, thus minimizing the heat generation and wear of the bearing. Under the condition of lack of lubricant, the polymer cage still has excellent movement characteristics. It can ensure that the bearings continue to operate for a period of time without damage. Due to the lower density of polymers, cages made from them have less inertia.

This cage has very good sliding and self-lubricating properties. Especially suitable for situations where there is vibration impact stress or high acceleration and deceleration, or the inner and outer rings of the bearing are tilted to each other;

1.5'' headset caged Bearing

Bearing type: Different types of bearings have different cage materials. For example, deep groove ball bearings, spherical roller bearings and tapered roller bearings usually use steel cages; while cylindrical roller bearings can use copper or nylon cages.

Other materials: In addition to the common materials mentioned above, there are also other materials used in the manufacture of bearing cages, such as aluminum, magnesium and other light metal materials, as well as some composite materials. These materials are typically selected based on the requirements of the specific application.

How to measure cagedbearings

Several factors need to be considered when selecting a bearing cage, including working environment, bearing type, speed and load, economics and other related factors. In actual applications, selection should be based on specific requirements and conditions to ensure the normal operation and service life of the bearing.

Replacing caged headsetbearingswith sealed

(1) The cage is directly die-cast, which can obtain good geometric shape and dimensional accuracy without mechanical processing, and has high production efficiency.(2) After die-casting, the metal crystallizes and solidifies, with precise structure, good surface quality and wear resistance.(3) High material utilization rate and reduced cost.

Working temperature: The working temperature is lower than 120°C and greater than -40°C. If the temperature is too low, the nylon will lose its elasticity.

Steel cage: Usually made of high-quality carbon steel or alloy steel, it has the characteristics of high strength, wear resistance and corrosion resistance. Suitable for high-speed, heavy-load and high-temperature applications, such as bearings in aerospace engines and automobile gearboxes.

Limitations of use: The polyamide nylon cage may be affected by special lubrication (corrosive additives in the lubricant) and cannot be used in vacuum as it will become brittle due to dehydration;

(1) The cage is molded in one injection molding, which can obtain precise geometric shape and dimensional accuracy and low surface roughness value without the need for mechanical processing, and the production efficiency is high.(2) The mold and plastic casting are simple to form, the bearing is easy to assemble, and it is easy to realize automatic control.(3) The plastic cage has good properties such as wear resistance, antimagnetic and low friction.

When a rolling bearing is working, especially when the load is complex and rotates at high speed, the cage must withstand large centrifugal force, impact and vibration. There is large sliding friction between the cage and the rolling elements, and a large amount of heat is generated. The combined effect of force and heat can lead to cage failure, and in severe cases, the cage can be burned and broken. Therefore, the cage material is required to have good thermal conductivity, good wear resistance, small friction coefficient, small density, a certain combination of strength and toughness, and good elasticity and stiffness. An expansion coefficient similar to that of rolling elements. And good processing performance. In addition, the cage is also affected by chemical media, such as lubricants, lubricant additives, organic solvents and coolants.

Working environment: The working environment of the bearing has a great influence on the material of the cage. For example, in high-temperature environments, high-temperature-resistant materials should be selected, such as steel or phenolic tape cages; in corrosive environments, corrosion-resistant materials should be selected, such as copper or nylon cages.

Different from steel, non-ferrous metals have their own special properties. For example, aluminum alloy has the characteristics of low density, good thermal conductivity, and good corrosion resistance; copper alloy has the characteristics of good thermal conductivity, small friction coefficient, good formability, and high operating temperature; Zinc-aluminum alloy has the advantages of low cost, low density and excellent performance.

However, due to the shortcomings of thermal deformation, aging and brittleness of the plastic itself, as well as some problems in the cage structure and plastic injection process, the application of the plastic cast cage is limited.

After the cage is installed into the bearing. Due to the gap between the cage and the rolling elements, the cage can be offset in the radial direction, which is called the radial offset. Its offset can be expressed by the following formula:

Economy: On the premise of meeting performance requirements, economic factors should be considered. Some lightweight, low-cost materials such as engineering plastics are suitable for light loads, low speeds and high temperatures.

The raw materials of the die-cast cage are aluminum alloy and brass. The raw materials are melted and poured into the die-casting mold of the die-casting machine, and the cage is die-cast in one go. The casting gate is turned on a lathe.

1 1/8 headset cagedbearings

The maximum supported file size is 10MB, For larger or multiple files please place into one folder and compress into a ZIP or RAR file and sent to info@aubearing.com

Brass cage: Usually made of brass or bronze, it has excellent wear resistance, corrosion resistance and low friction coefficient. Suitable for medium speed and light load applications, such as bearings in household appliances, instruments and office equipment.Brass has high tensile strength and is not affected by common bearing lubricants. It is often used in small and medium-sized bearings. However, due to the high price of copper, the price of brass cages is also high. The main features are as follows:

Phenolic cage: composed of phenolic resin, glass fiber cloth and other materials, it has the characteristics of high strength, high temperature resistance and good insulation properties. Suitable for high temperature and high speed applications, such as bearings in aircraft engines and gas turbines.

Other factors: In addition, factors such as the size, shape, processing method and installation requirements of the cage need to be considered.

Restrictions on use: Brass cages cannot be used in situations above 300°C, and are not suitable for ammonia (such as cooling), because ammonia will cause seasonal breakage of brass;

A timing belt typically lasts from 60,000 to 100,000 miles. The owner’s manual for your vehicle should be followed regarding the replacement of your vehicle’s timing belt. Replacing a timing belt should be done by a car-care professional only. It is a difficult process that may require moving other parts in your engine, such as the water cooler. Then, after the new timing belt is installed, it must be synchronized with the crankshaft and camshaft in order to operate properly and precisely.

Advantages and performance: This kind of cage has high strength and light material. It is mostly used in deep groove ball bearings, spherical roller bearings and tapered roller bearings, and is generally not affected by mineral oil-based or alkali-containing oil-based lubricants in rolling bearings.

Commonly used cages are mainly divided into metal cages and non-metallic cages according to material types. There are also composite cages, etc. Special-purpose bearing cages should also meet the requirements of special working conditions. Such as high temperature resistance, corrosion resistance, self-lubricating (used in vacuum) or non-magnetic, etc.

Speed and load: The speed and load are also important factors in selecting the cage material. Under conditions of high speed and heavy load, it is necessary to choose materials with high strength, wear resistance and corrosion resistance, such as steel or copper cages.

Due to its high strength, good toughness, and ease of processing, steel cage materials are commonly used in rolling bearings. Usually steel retainers are cold stamped from high-quality carbon steel sheets. In addition, other mechanical processing methods can also be used as needed. Commonly used steel cage materials include 20, 30, 45, 0Cr18Ni9, 1Cr18Ni9Ti, 40CrNiMo, ML15, ML20, etc. Steel cages are generally heat treated to eliminate stress and restore plasticity. Including high temperature tempering, recrystallization annealing, etc. In order to reduce the friction coefficient of the steel cage, the finished cage must be surface treated if necessary.

For engineering plastic cages, the performance of each manufacturer is slightly different, but they are generally similar. This kind of cage is light in weight and suitable for high-speed applications. over, the failure mode of this kind of cage is not sudden bursting, so it is suitable for some occasions where sudden shutdown is not allowed. However, for mining machinery, this kind of cage is not suitable for use due to safety considerations, because its damage does not occur suddenly, but as the temperature gradually rises to a certain level, it is completely damaged, which will be very dangerous in explosive situations. . At the same time, this kind of cage has a temperature limit, usually -40~120℃: There is basically no obstacle to the brass cage, but it is not suitable for environments with ammonia. Generally, small bearings do not use copper cages. There are no restrictions on steel cages, but large-size bearings do not use steel cages.

FSA Headset cagedBearings

In addition to being made of pure materials, the cage also uses modified polymer materials. Use other materials for filling or reinforcement.

Material: Brass plate, brass casting or brass forging. Brass has high tensile strength, and its mechanical strength is equivalent to that of steel plate stamping cage, but its density is relatively small, its limit speed is high, and its price is higher.

If the timing belt fails, your entire engine will fail. If a timing belt is worn or stretched, it can throw off the timing of the valves and pistons. This can cause the pistons to hit a closed valve and damage or bend the valves and pistons. Again, if a timing belt is worn or stretched, it can disrupt the timing of your engine and cause serious damage to your engine’s valves and pistons, which will lead to a much more expensive repair.

Timing belts allow your vehicle’s engine to operate. They connect your engine’s crankshaft to the camshaft and play a vital role in controlling the pistons and valves in your vehicle. Simply explained, the timing belt is a reinforced rubber band with teeth or notches on the inner side that precisely synchronize the opening and closing of the engine’s valves. As the crankshaft turns, it sets the timing belt in motion. The timing belt then turns the camshaft and opens or closes each valve and allows the pistons to move up and down. For instance, in a four-stroke engine there are four phases: the intake phase, compression phase, combustion phase, and exhaust phase. In the intake phase, air and fuel get pulled into the cylinders. In this phase the intake valves are open and the exhaust valves are closed. In the compression and combustion phases the air and fuel is mixed, compressed, and then ignited by the spark plugs. During these two phases all of the valves are closed. The final stage is the exhaust phase where the air and fuel that remains exits out of the exhaust valve. In this phase the exhaust valves are open and the intake valves are closed. The timing belt must control all of the opening and closing of the valves and the timing of the pistons throughout each phase. The timing belt allows each step to occur in the precise order.

Headset cagedbearingswhich way up

The main purpose of the bearing cage is to maintain a suitable distance between the rolling elements and avoid direct contact between adjacent rolling elements to maintain friction and the resulting heat at a minimum level; to keep the rolling elements evenly distributed In all bearings, the load can be distributed evenly in all bearings, so that the load can be distributed evenly and reduce noise. The rolling elements can be correctly guided in the no-load zone to improve the rolling conditions in the bearing and avoid destructive accidents. drag.

The materials of bearing cages can be classified according to their manufacturing materials and application scenarios. The following are some common bearing cage materials:

Nylon cage: Usually made of polyamide (PA66) and other engineering plastics for injection molding, it has the characteristics of light weight, corrosion resistance, good insulation and easy processing. Suitable for light load, low speed and high temperature applications, such as bearings in power tools, sewing machines and food processing machinery.Polyamide nylon material has the advantages of high elasticity and light weight. This cage has very good sliding and self-lubricating properties. It is a new generation product that currently replaces iron cages.

However, when die-casting an aluminum alloy cage, large-tonnage equipment is required, and the mold design and manufacturing are complicated. The cage pockets are easily strained during die-casting. Under the conditions where the bearing is subjected to impact, vibration and variable speed, the quality of the die-cast cage needs to be further improved.

Vacuum-dried granular engineering plastics are placed in a barrel, heated by resistance wires and melted into a semi-liquid state. Pressurized by a plunger or moving screw, the semi-liquid raw materials are injected from the nozzle into the forming mold of the injection molding machine. After being insulated, , obtain the required cage after cooling.

Although the bearing is composed of many parts, the cage can also be said to be the “blood vessel” of the bearing. Therefore, in the performance of the bearing, the material of the cage is directly related to the efficiency of the bearing. Bearing cage is a bearing part that wraps all or part of the rolling elements and moves with them to isolate the rolling elements. It usually also guides the rolling elements and keeps them within the bearing.