Merchandise Description

Merchandise Description

Common information of STT 
deep groove ball bearing
STT deep groove ball bearing is made up of an outer ring, an internal ring, a group of metal balls and a group of cages.  Deep groove ball composition is also divided into seal and open framework. The open up type means that the bearing has no sealing structure. The sealed deep groove ball is divided into dust-proof seal. The dust-proof seal protect is produced of metal plate, which only serves as a simple way to avoid dust from coming into the bearing raceway. 

Functioning basic principle of STT deep groove ball bearing
It mostly bears radial load, and also can bear axial load and radial load at the identical time. When it only bears radial load, the make contact with angle is zero. When the deep groove ball bearing has a huge radial clearance, it has the performance of angular speak to bearing and can face up to massive axial load. The friction coefficient of the deep groove ball bearing is quite modest, and the restrict speed is also really higher.

Traits of STT deep groove ball bearing
STT deep groove ball bearings are ideal for substantial velocity procedure, and they are really tough without recurrent routine maintenance. This variety of bearing has the characteristics of modest friction coefficient, large limit pace, a variety of measurements and varieties they are used in precision instruments, lower noise motor, vehicle, bike and standard equipment and other industries. It is 1 of the most widely utilised bearing in mechanical sector. It largely bears radial load, and also can bear a particular amount of axial load.

1.Deep groove ball bearing— CZPT to have high masses
two.With carbon chrome steel ball bearing
3.more quietly than croller bearings
four.Deep groove ball bearing—-Minimal performance and tough
5.Deep groove ball bearing—-Capable to operate in sub-zero temperatures and have reduced rolling resistance
6.Deep groove ball bearing—-Ideal for countless applications:sliding doorways,home windows and other furnitures

Company Profile

2012 Business Set up and Brand created
2014 Independently created the 1st computerized assembly equipment
2015 Moved to Guozhao Road manufacturing facility with area of 10,000 sq. meters 
2571 Moved to Xihu (West Lake) Dis.u Highway, manufacturing unit development area of 21,000 sq. meters
2571 Headquarters foundation established with construction area of 48,000 square meters

Established in 2012,HangZhou Tie Jin Science& Technological innovation Corp. Ltd (STT) has devoted itself to the research and growth of specific miniature deep groove ball bearings processing gear. Right after many years of accumulation, STT investigated and produced deep groove ball bearings sequence with interior diameter of 1.5mm ,2mm, 2.3mm ,2.5mm.And have achieved technological breakthroughs in extremely-substantial pace, extremely-precision, ultra-quiet and other higher-conclude application scenarios.

We stick to the principle of “good quality initial, services very first, ongoing enhancement and innovation to satisfy the buyers” for the administration and “zero defect, zero complaints” as the good quality objective. Our principal products are Added miniature deep groove ball bearing (inner gap 1.5 ~ 8 mm).
Our manufacturing facility locats in HangZhou city, addresses an location of 21 thousand square meters with registered cash of 39.7 million CNY. STT has overall 450 staffs which includes 40 investigation & builders and 50 QC. The capacity is twenty five million sets every thirty day period.  

The company′s own brand has been China renowned model, China effectively-identified trademark, the most competitive brand in the marketplace. Organization has handed ISO14001, IATF16949, laboratory and other top quality and environmental administration technique certification. The organization has set up a established of ideal product sales network and services method, the products offer nicely all in excess of the nation, exported to Europe and The united states and other created international locations and areas.
Welcome consumers at house and overseas to negotiate and get.

Packaging & Delivery

1. tube bundle/ outer carton
2. tube bundle/ outer carton / pallets 
3. in accordance to your requirement 

By Air  / By Sea /By Convey
 a. For small excess weight or Urgent, goods will be delivery  by Categorical DHL/FedEX/UPS/TNT/EMS
 b. For max production,products will be delivered by sea/by air.
 c. In accordance to your specifications


Q1:What is your Just before-product sales Support?
1>. Offer you to bear relevant session about technological innovation and application

2>.Assist consumers with bearing selection, clearance configuration, products’ life and dependability analysis

3>. Provide extremely cost-efficient and comprehensive answer system according to website circumstances

4>. Offer you localized program on launched products to save managing price

Q2: What is your Right after-sales Support?
1>. Offer you coaching about bearing installation and maintenance

2>.Help buyers with difficulties prognosis and failure examination

Q3: How about your company’s strength?
1>.Cost-free SAMPLES:
speak to us by e-mail or trade supervisor, we will deliver the totally free samples in accordance to your ask for.

2.Low MOQ
For the standard dimension bearings, even a single, we also settle for.

2>. Globe-Class Bearing:
We offer our customers with miniature deep groove ball bearings with entire world-course quality.

3>.OEM or Non-Stand Bearings:
Any need for Nonstandard roller bearings is Simply Fulfilled by us because of to STT has a strong professional team, professional production, testing equipment, professional sales and after sale service team.

4>. After Sales Provider and Complex Support:
The company provides following-revenue service and technical help as for each the customer’s needs and needs.

5>.Quick Supply:
1-3 workingdays for the inventory merchandise.
one-3 weeks of generation, depending on the purchase qty.

This autumn: What will we do if you are not pleased with the solution?
A: If have any irregular, please speak to us at the first time, we will instantly process

Q5: Is optional lubrication presented?
A: We can supply a wide assortment of oils and greases for a assortment of purposes. Make sure you contact our engineer for technological help with any unique demands


Contact Angle: N/a
Aligning: N/a
Separated: Unseparated
Rows Number: Single
Load Direction: Thrust Bearing
Material: Bearing Steel




Contact Angle: N/a
Aligning: N/a
Separated: Unseparated
Rows Number: Single
Load Direction: Thrust Bearing
Material: Bearing Steel




What is a bushing?

What is a bushing? Basically, bushings are spherical or spherical bearings for machines with sliding or rotating shaft assemblies. Due to their excellent load-carrying capacity and anti-friction properties, these bushings are used in almost all industrial applications. This makes them useful in industries such as construction, mining, agriculture, transportation, hydropower, food processing and material handling.

Shell information

The demand for bushings is closely related to the global transformer market. Growing renewable energy sources and high replacement rates of aging grid infrastructure are driving the global demand for transformer bushings. Increased urbanization is another factor driving the demand for transformer bushings. Among global regions, Asia Pacific is the largest market for medium voltage transformer bushings. The following section provides a detailed analysis of the market.
Bulk-type bushings are used for lower voltage ratings and consist of a center conductor stud or tube and an insulator housing. They are available in dry or oil filled versions, and their oil content is shared with the transformer main tank. However, the trend is slowly turning towards RIP bushings. Regardless of how different types of bushings are used, it is important to understand the difference between them.
A recent CZPT survey indicated that bushings account for 17% of all transformer failures. Among them, 30% caused fire accidents and 10% caused explosions. This is not a small risk, especially for such important electrical components as transformers. Because casing is so important, utilities are increasingly looking to preventative maintenance. However, this requires continuous monitoring of the bushing and its insulation. There are many benefits to using online condition monitoring.
One of the main benefits of locating and replacing faulty bushings is improved operability and safety. If you notice that your car is unstable in the corners, your bushings are worn. Anti-roll bar bushings can also be a sign of bushing damage. Do not ignore these warning signs as they can have dangerous consequences. To avoid these potential problems, make sure to get your vehicle serviced as soon as you notice any of these symptoms.
Be sure to park your vehicle on a level surface before you start changing your car bushings. You may need to unlock the hood latch and apply the brakes before continuing. Then, open the valve cover. This will allow you to see the engine area and bushings. You should also check that the wheels are not moving and avoid placing sharp objects in the engine bay. If you have time, open the hood and if you can see the bushings, turn on the headlights.


There are various types of bushings, each serving a different purpose. Oil-filled types are the most common and are designed for vertical installations. On the other hand, the embedded ferrule can accommodate the connection to the wire leads in the lower end of the ferrule. This feature significantly reduces the length of the sump end of the casing, but also adds additional complexity and cost.
There are two basic types of bushings. The first is a solid pour and the second is a capacitive graded variety. Solid cast bushings are typically used for low voltage transformer windings, while gas insulated bushings are insulated with pressurized gas. Gas-insulated bushings are also used in SF6 circuit breakers. If you are in the market for a new bushing, be sure to consider its cantilever strength and design.
Electrical bushings are an important part of various electrical equipment. They help carry high-voltage current through the enclosure and act as an insulator between a live conductor and a metal body at ground potential. Bulk-type bushings consist of a central conductive rod (usually copper or aluminum) and an insulator (silicone rubber compound or composite resin) surrounding the rod.
Transformers require transformer bushings. The construction and materials used in the bushing play a key role in the durability and longevity of the transformer. Transformers with weak bushings can fail, causing extensive damage. Moisture or voids can cause insulation breakdown, resulting in extensive electrical damage. Appropriate materials and optimized construction can reduce electric field stress and extend the life of the bushing.
Capacitor grading bushings are more expensive and are used in almost all high voltage systems. They use a conductive layer within the insulating layer between the center conductor and the insulator. Different manufacturers use different materials to produce these bushings. Earlier, capacitor grading bushings were made of concentric ceramic cylinders with metallized surfaces. They are also made from laminated cardboard tubes with conductive layers.


A bushing is a support member that performs its function by acting as a washer and reducing noise and vibration. Bushings are used in valve covers and are made of corrosion-resistant materials to perform these functions. These products can be found in all types of machinery from cars to airplanes. Below are some common uses for bushings. Read on to discover more. Here are some of the most important features of the shell.
Electrical bushings transmit electricity. They can be used in circuit breakers, transformers, power capacitors and shunt reactors. The conductors of the bushing can be built directly into the bushing or through the bushing. Both current and voltage represent electricity. The bushing must have insulation capable of withstanding the voltage and its current-carrying conductors must be capable of carrying the rated current without overheating the adjacent insulation.
The bushing wraps around the stem, which is a relatively simple replacement part. It is a hardened part that prevents leaks and improves sealing. Plus, its low-cost replacement makes it a very easy-to-machine part. Bushings are also used in valves for guiding purposes. These two features make bushings an important part of many machines and applications. So, learn more about them.
Copper and brass are commonly used bushing materials. They have high compressive strength and high surface pressure. This material is suitable for bearings in low speed situations and heavy duty applications. Copper and brass are the most common types of casings, and they are both made in China. They are all relatively inexpensive and are available in a variety of materials and sizes. If you are considering purchasing a casing, keep in mind that it must meet national standards.


Whether you’re looking for a replacement bushing for your rear suspension or just need to replace the fork, you have a few different options. The two main types of bushings are coated and uncoated. If you want to save money on bushing replacements, you should consider getting a cheaper lower fork. Whether you’re replacing bushings to improve ride quality or prevent damage to your wheel loader, you’ll find a bushing replacement option that fits your budget.
While most cars are compatible with bushings, some iconic parts from premium brands like BMW and Mercedes require special tools to replace. If you are not confident in your mechanical abilities, consider hiring a mechanic to do it. Mechanical replacement bushings typically range from $200 to $500. If you’re comfortable with mechanics and have some mechanical knowledge, you can save money by trying the job yourself. For example, control arm bushings range in price from $20 to $80. It is important to check the alignment after replacing the bushing to avoid further damage.
Control arm bushing replacements are usually relatively inexpensive, but you may need to replace several at the same time. You should check the prices of several mechanics before making a decision. You can easily save between $50 and $100 by comparing quotes. Plus, you’ll save a lot of money by finding the right mechanic for the job. You can also use an online comparison tool to compare prices. You can find a mechanic that suits your needs at an affordable price.
Control arm bushings are also an inexpensive way to replace parts of a car’s front or rear suspension. Typically, control arm bushings are made of two metal cylinders covered with a thick layer of rubber. They wear out due to accidents, potholes and off-roading. They are mounted with a bolt that goes through the inner barrel. It is important to replace these bushings as often as needed to improve operation.

China Large Stocks Series 1.397-6.35mm Ball Bearings for Home Electronics     with Hot sellingChina Large Stocks Series 1.397-6.35mm Ball Bearings for Home Electronics     with Hot selling
editor by CX 2023-03-27