Variety: Roller
Composition: cylindrical
Applicable Industries: Strength & Mining
Design Number: NN3571ASK.M.SP
Precision Score: P0,P6,P5,P4
Seals Type: No sealed
Variety of Row: Double row
Materials: Chrome Metal Gcr15
Cage: Brass Metal
Support: OEM Support
Characteristic: Long Daily life
Vibration: Z1V1 Z2V2 Z3V3
Clearance: C2 C3 C4 C5

Cylindrical roller bearings typically consist of cages, rollers and are guided by 2 capped edges on a ring. It is a separable bearing and handy to mount and dismount. Its merit is specially unique underneath the situation that the interference is essential and assorted with inner ring, outer ring and housing. On 1 hand, this type of bearing can generally withstand the radial load, on the other hand, single-row cylindrical roller bearing with ribbed inner ring and outer ring can consider scaled-down axial load or intermittent axial load, this variety of bearing has a bigger carrying ability of axial load in comparison with the deep groove ball bearing. The composition of the bearing makes certain that it runs extremely nicely underneath large rotational velocity.Kinds:one.Single-row cylindrical roller bearing including NU, NJ, NUP, N and NF2.Double-row cylindrical roller bearing this sort of as NNU, NN, and so on.3.4-row cylindrical roller bearingN variety:The interior ring has 2 integral flanges and the outer ring is with no flanges. Axial displacement of the shaft with respect to the housing can be accommodated in equally instructions inside the bearing by itself. The bearings are consequently employed as non-finding bearings.NU sort:The outer ring of bearings of the NU design has 2 integral flanges and the internal ring is without having flanges. Axial displacement of the shaft with regard to the housing can be accommodated in each instructions within the bearing itself.NJ type:The outer ring has 2 integral flanges and the inner ring 1 integral flange. The bearings are therefore appropriate for the axial spot of a shaft in 1 path.NF kind:The outer ring has 1 integral flange and the interior ring 2 integral flanges.NUP kind:The outer ring has 2 integral flanges and the internal ring 1 integral flange and 1 non-integral flange in the form of a unfastened flange ring. The bearings can be utilized as finding bearings, i.e. they can supply axial area for a shaft in the two instructions.RN kind:No outer ring and the internal ring 2 integral flanges.NN variety:NN kind bearing with out CZPT on outer ring,there is a wall in the midel of between each sides of internal ring. It can make shaft relative bearing between the axial displacement created in the two instructions.

Standard applications:They are widely used in the massive and medium-size motor, locomotive, LDK UE205 Wider inner ring Gcr15 metal deep groove insert ball bearings spindle, interior combustion motor, generator, gas turbine, reducer, rolling mill, vibrating display and lifting transportation machinery, and so on.

Bearing No.Boundary dimensionsMass
NN3006Kthirtyfifty five19.192
NN3007K35sixty two20.21
NN3011Kfifty five9026.618
NN3013Ksixty five10026.708
NN3014K70one hundred ten301.03
NN3015K70a hundred and fifteenthirty1.08
NN3017K/W3385a hundred thirty341.63
NN3018K/W33ninetyone hundred forty372.twelve
NN3019K/W3395a hundred forty five372.21
NN3571K/W33one zero fivea hundred and sixty41two.ninety five
NN3571K/W33110one hundred seventyforty fivethree.seventy four
NN3571K/W33one hundred twentyone hundred eighty463.86
NN3571K/W33one hundred forty210fifty threesix.43

HangZhou Maolei Bearing Co., Ltd is a maker and trader specialized in the analysis, development and production of bearings. is positioned in the “Spring Metropolis” HangZhou, with hassle-free transportation.
The main goods of HangZhou Maolei bearing Co,.Ltd have a selection of bearings ranging from deep groove ball bearings, self-aligning ball bearings, self-aligning roller bearings, wheel hub bearings, Miniature Ball Bearings Micro Sizes 681x zz fingerboard bearing 681x 1.542 linear bearings, pillow block bearing, ceramic bearings, plastic bearings, cylindrical roller bearings, angular speak to ball bearings, tapered roller bearings, thrust ball bearings, thrust roller bearings and needle roller bearings to spherical simple bearings and other items. All of our goods comply with intercontinental top quality specifications ISO 9001 and are tremendously appreciated in a range of distinct marketplaces all through the world.
We insist on the philosophies of “integrity” and “pragmatic & CZPT enterprise”. We also adhere to the “individuals-oriented” and “advancing” business spirit . ” CN29 Custom made Measurement Shaft Head MarineShip Propeller Shaftcnc machining SHAFT CNC High quality very first and customers utmost” is honored as our business concept.

What is a bushing?

If you’ve ever wondered what an enclosure is, you’ve come to the right place. This article will provide an overview of different types of housings, including air-insulated, oil-impregnated porous bronze, and epoxy-impregnated capacitor cells. After reading this article, you will be better equipped to make an informed choice about the type of bushings your truck needs.

air insulating sleeve

When choosing bushings for your electrical application, you need to look for bushings with long-lasting insulation. In addition to being durable, bushings must have the correct design shape and material to remain effective over time. Porcelain was used in early casing designs and was chosen for indoor and outdoor applications due to its low cost and low linear expansion. Porcelain also requires a lot of metal fittings and flexible seals to remain effective.
Solid bushings have a center conductor and a porcelain or epoxy insulator. They are used in low voltage electrical applications such as small distribution transformers and circuit switches. However, their low radial capacity limits their use in high-voltage applications, so they are limited to circuit switches and other low-voltage equipment. The electrical service duty of the bushing determines the type of insulation required.
Another type of air-insulated bushing is made of conductive metal, which reduces heat transfer. This design enables it to operate over a range of temperature conditions. Additionally, air-insulated bushings are generally more effective than gas-insulated bushings in a range of applications. The main difference between air-insulated bushings and gas-insulated bushings is the insulating material. While gas-insulated bushings are usually made of high-quality materials, high-quality materials are still preferred in some applications.
Elliott # B series insulators are 25 kV class and pressure molded cycloaliphatic epoxy resins. They feature knurled brass inserts and 16 UNC threads. If you choose this type, make sure it matches the exact diameter of your Elliott Class 25 kv air insulated bushing. These insulators also provide overall shielding and require openings to fit inch diameters.
There are two types of air-insulated bushings: air-to-air and oil-to-oil. Oil is a stronger dielectric than air, and air-to-oil bushings are used to connect atmospheric air to oil-filled equipment. They are available for solid and capacitive hierarchies. So, which one is right for you? Just choose the right insulation to make your equipment as efficient as possible.

Oil Impregnated Porous Bronze Bushings

Oil-impregnated porous bronze (PbB) bushings are one of the best options for lubricating metal bearings. Lubrication is maintained even in high temperature applications as oil penetrates into the pores of the bronze. They are also self-lubricating and maintenance-free. Manufactured by CZPT, the Oil Impregnated Bronze Bushing is a powder metal process that is uniformly lubricated by a uniform oil film. This type of bearing is one of the most efficient in terms of precision performance.
One major difference between oil-impregnated bronze bushings and standard cast bronze bushings is their manufacturing process. Oil-impregnated bronze bushings are pressed from powder and then sintered to form a hardened part. This method is very effective for high-volume manufacturing, but it also has its limitations. Oil-impregnated bronze bushings are cheaper and more efficient, but they have mechanical limitations.
The production of oil-impregnated porous bronze bushings is simple. Powder bronze bushings are pressed and vacuum sealed by forcing oil into the pores. The low stress properties of oil-impregnated bronze bushings make them easier to manufacture in high volume. It also does not require additional lubrication. However, oil-impregnated porous bronze bushings have relatively low mechanical strength and are not recommended for applications where high temperatures are present.
Oil Impregnated Porous Bronze is also known as BPPB. Unlike traditional oil-impregnated bronze bushings, BPPB bushings have a high oil retention capacity. This means they will last a long time and you will save a lot of maintenance costs. But be careful. Porous bronze bushings can only last so long without oil.
Oil-impregnated bronze bushings are a good choice if dimensional consistency is important. BP bronze bushings have the same C dimension as solid metal bushings. While the CZPT is a ghost of the past, there are now many powder metal manufacturers producing BP housings. Their C of F values ​​range from 0.04 to 0.08.

Epoxy Impregnated Capacitor Batteries

Epoxy impregnated condenser core sleeves are conductive paper used in air conditioning systems. The paper core is coated with epoxy resin and the insulating shell is silicone rubber. RIP bushings have excellent electrical properties, are fire resistant and are relatively small. However, the process of making these products is not easy and mistakes are common. These defects manifest as cracks or other structural damage in the capacitor cells.
RIF (Resin Impregnated) bushings feature a finely graded design. The capacitor core is made of glass fiber impregnated with epoxy resin. The outer insulation is made of silicone rubber sheds glued directly to the capacitor core. These bushings are designed for small clearances, so no filler material is required.
In order to determine whether the RIP sleeve is void-free and dry, the insulating paper must be impregnated with epoxy resin. The process is similar to making conventional condenser core sleeves, but with greater flexibility and robustness. The main difference between RIP bushings and conventional insulators is the epoxy content.
Capacitor grading bushings are also available. These bushings increase the electric field at the ends of the capacitor core plates. The higher the temperature, the higher the electric field. These properties make resin-impregnated capacitor mandrel sleeves reliable. However, capacitor grade bushings have higher electric fields than nonlinear bushings.
The capacitor core of the present invention is made by winding paper around the winding tube 3 . The paper may contain an intermediate conductive foil. The winding tube is then covered with electrical insulator. Afterwards, the capacitor core 1 will be RIP and electrically connected to the electrical conductor 6 .
To further characterize the performance of RIPs, thermal shock current (TSC) was used to determine their trap parameters. Unmodified epoxy resin and nano-SiO2 modified RIP were tested. The RIP samples were polarized under a 2 kV/mm electric field at 333 K for 10 min and then subcooled to 193 K with liquid nitrogen. TSC curves were obtained at 3 K/min and 383 K.

plastic bushing

Plastic bushings are essential for many industries. They protect wires and other mechanical parts. They come in many shapes and sizes and are often used as adapters when connecting two pipes or tubes of different diameters. They are available in a variety of materials including rubber, steel and various other plastics. Most bushings are cylindrical or conical in shape and made of shock absorbing material. They slide on rods or pipes to provide low friction motion.
Plastic bushings can be made from a variety of materials, including phenolic, polyethylene, and nylon. While phenolic resins have long been the preferred choice for heavy-duty applications, nylon is the most commonly used lining plastic. Nylon has several advantages, including low friction, no lubrication, quiet operation, and low wear. In addition to these advantages, it is easy to form and cast. In order to obtain better mechanical properties, fillers such as molybdenum disulfide can be added to the material. Plus, filled nylon parts resist deformation at temperatures up to 300 degrees Fahrenheit.
Another benefit of plastic bushings is their low cost. Much cheaper than metal, plastic is a versatile material that can be used in a variety of industries. A quick installation and replacement process makes them the first choice for users who need to install new components quickly. Plus, plastic bushings don’t wear out as quickly as metal, which is another benefit. And because the wear rate of plastic bushings is predictable, manufacturers can easily replace them before they start to fail. And they last longer, so you save time and money.
Plastic bushings are widely used in machinery with sliding and rotating shaft components. They have excellent load-carrying capacity and anti-friction properties. They are essential to many industries, including construction, mining, agriculture, hydropower, transportation and food processing. They are easy to install and come in a variety of sizes and shapes. They are very durable and very reliable. They reduce machine wear and are less expensive than bearings.

China NN3020ASK.M.SP Double Row Cylindrical Roller Bearings NN3020-ASK-M-SPSize 100x150x37mm     with high qualityChina NN3020ASK.M.SP Double Row Cylindrical Roller Bearings NN3020-ASK-M-SPSize 100x150x37mm     with high quality
editor by czh 2023-02-19