Merchandise Description

Merchandise Description


General details of STT deep groove ball bearing
STT deep groove ball bearing is composed of an outer ring, an internal ring, a group of metal balls and a group of cages.  Deep groove ball construction is also divided into seal and open construction. The open kind indicates that the bearing has no sealing composition. The sealed deep groove ball is divided into dust-proof seal. The dust-evidence seal include is manufactured of steel plate, which only serves as a simple way to prevent dust from getting into the bearing raceway. 

Operating basic principle of STT deep groove ball bearing
It mostly bears radial load, and also can bear axial load and radial load at the same time. When it only bears radial load, the get in touch with angle is zero. When the deep groove ball bearing has a massive radial clearance, it has the functionality of angular contact bearing and can face up to huge axial load. The friction coefficient of the deep groove ball bearing is very little, and the limit speed is also extremely substantial.

Traits of STT deep groove ball bearing
STT deep groove ball bearings are suited for higher velocity procedure, and they are extremely durable with out recurrent upkeep. This type of bearing has the qualities of small friction coefficient, higher limit speed, different dimensions and forms they are utilised in precision instruments, reduced noise motor, auto, motorbike and basic equipment and other industries. It is 1 of the most widely used bearing in mechanical market. It largely bears radial load, and also can bear a certain quantity of axial load.

1.Deep groove ball bearing— CZPT to have substantial hundreds
2.With carbon chrome steel ball bearing
3.a lot more quietly than croller bearings
4.Deep groove ball bearing—-Reduced sounds.steady efficiency and resilient
five.Deep groove ball bearing—-In a position to function in sub-zero temperatures and have minimal rolling resistance
six.Deep groove ball bearing—-Appropriate for a great number of programs:sliding doors,home windows and other furnitures

Organization Profile

Business Recognized and Manufacturer created
2014 Independently produced the 1st automated assembly device
2015 Moved to Guozhao Road manufacturing unit with spot of 10,000 sq. meters 
2571 Moved to Xihu (West Lake) Dis.u Street, manufacturing facility construction region of 21,000 square meters
2571 Headquarters foundation established with development region of 48,000 sq. meters

Established in 2012,HangZhou Tie Jin Science& Technology Corp. Ltd (STT) has devoted by itself to the research and advancement of specific miniature deep groove ball bearings processing equipment. After a long time of accumulation, STT investigated and created deep groove ball bearings collection with interior diameter of 1.5mm ,2mm, 2.3mm ,2.5mm.And have accomplished technological breakthroughs in ultra-large speed, extremely-precision, extremely-silent and other high-stop application scenarios.

We stick to the basic principle of “top quality 1st, provider first, constant improvement and innovation to meet the consumers” for the management and “zero defect, zero issues” as the quality aim. Our major goods are Further miniature deep groove ball bearing (inner gap 1.5 ~ 8 mm).
Our factory locats in HangZhou city, handles an location of 21 thousand square meters with registered capital of 39.7 million CNY. STT has total 450 staffs which includes forty analysis & developers and 50 QC. The capacity is 25 million sets each thirty day period.  

The company′s own model has been China well-known manufacturer, China effectively-identified trademark, the most aggressive model in the industry. Business has passed ISO14001, IATF16949, laboratory and other quality and environmental management technique certification. The business has set up a set of ideal sales community and services method, the goods sell effectively all over the place, exported to Europe and The united states and other produced nations and locations.
Welcome buyers at home and abroad to negotiate and get.

Packaging & Transport

1. tube package/ outer carton
2. tube package deal/ outer carton / pallets 
three. in accordance to your requirement 

By Air  / By Sea /By Specific
 a. For small bodyweight or Urgent, items will be delivery  by Express DHL/FedEX/UPS/TNT/EMS
 b. For max generation,goods will be transported by sea/by air.
 c. According to your needs


Q1:What is your Ahead of-sales Service?
1>. Provide to bear connected session about engineering and application

2>.Support customers with bearing option, clearance configuration, products’ lifestyle and dependability analysis

3>. Provide highly price-effective and full solution plan according to site problems

4>. Offer you localized software on introduced products to save running value

Q2: What is your Soon after-income Service?
1>. Provide coaching about bearing set up and routine maintenance

2>.Assist clients with difficulty diagnosis and failure analysis

Q3: How about your company’s energy?
1>.Totally free SAMPLES:
make contact with us by e-mail or trade supervisor, we will deliver the free of charge samples in accordance to your request.

two.Minimal MOQ
For the standard size bearings, even a single, we also settle for.

2>. World-Course Bearing:
We give our consumers with miniature deep groove ball bearings with entire world-course high quality.

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

4>. After Sales Services and Complex Assistance:
The business gives following-revenue provider and technological assistance as per the customer’s specifications and requirements.

5>.Fast Supply:
one-3 workingdays for the inventory merchandise.
1-3 weeks of creation, dependent on the order qty.

This fall: What will we do if you are not happy with the solution?
A: If have any irregular, you should get in touch with us at the very first time, we will quickly approach

Q5: Is optional lubrication presented?
A: We can offer a broad selection of oils and greases for a assortment of applications. Remember to make contact with our engineer for specialized assistance with any specific specifications

/ Piece
100 Pieces

(Min. Order)


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




/ Piece
100 Pieces

(Min. Order)


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




The benefits of rubber bushings and how they work

If you have experienced increased vibration while driving, you know the importance of replacing the control arm bushings. The resulting metal-to-metal contact can cause annoying driving problems and be a threat to your safety. Over time, the control arm bushings begin to wear out, a process that can be exacerbated by harsh driving conditions and environmental factors. Additionally, larger tires that are more susceptible to bushing wear are also prone to increased vibration transfer, especially for vehicles with shorter sidewalls. Additionally, these plus-sized tires, which are designed to fit on larger rims, have a higher risk of transmitting vibrations through the bushings.


Rubber bushings are rubber tubes that are glued into the inner or outer curve of a cylindrical metal part. The rubber is made of polyurethane and is usually prestressed to avoid breaking during installation. In some cases, the material is also elastic, so it can slide. These properties make rubber bushings an integral part of a vehicle’s suspension system. Here are some benefits of rubber bushings and how they work.
Rubber bushings are used to isolate and reduce vibration caused by the movement of the two pieces of equipment. They are usually placed between two pieces of machinery, such as gears or balls. By preventing vibrations, rubber bushings improve machine function and service life. In addition to improving the overall performance of the machine, the rubber bushing reduces noise and protects the operator from injury. The rubber on the shock absorber also acts as a vibration isolator. It suppresses the energy produced when the two parts of the machine interact. They allow a small amount of movement but minimize vibration.
Both rubber and polyurethane bushings have their advantages and disadvantages. The former is the cheapest, but not as durable as polyurethane. Compared to polyurethane, rubber bushings are a better choice for daily commutes, especially long commutes. Polyurethane bushings provide better steering control and road feel than rubber, but can be more expensive than the former. So how do you choose between polyurethane and rubber bushings?


Unlike rubber, polyurethane bushings resist high stress environments and normal cycling. This makes them an excellent choice for performance builds. However, there are some disadvantages to using polyurethane bushings. Read on to learn about the advantages and disadvantages of polyurethane bushings in suspension applications. Also, see if a polyurethane bushing is suitable for your vehicle.
Choosing the right bushing for your needs depends entirely on your budget and application. Softer bushings have the lowest performance but may have the lowest NVH. Polyurethane bushings, on the other hand, may be more articulated, but less articulated. Depending on your needs, you can choose a combination of features and tradeoffs. While these are good options for everyday use, for racing and hardcore handling applications, a softer option may be a better choice.
The initial hardness of the polyurethane bushing is higher than that of the rubber bushing. The difference between the two materials is determined by durometer testing. Polyurethane has a higher hardness than rubber because it does not react to load in the same way. The harder the rubber, the less elastic, and the higher the tear. This makes it an excellent choice for bushings in a variety of applications.


Solid bushings replace the standard bushings on the subframe, eliminating axle clutter. New bushings raise the subframe by 0.59″ (15mm), correcting the roll center. Plus, they don’t create cabin noise. So you can install these bushings even when your vehicle is lowered. But you should consider some facts when installing solid casing. Read on to learn more about these casings.
The stiffest bushing material currently available is solid aluminum. This material hardly absorbs vibrations, but it is not recommended for everyday use. Its stiffness makes it ideal for rail vehicles. The aluminum housing is prone to wear and tear and may not be suitable for street use. However, the solid aluminum bushings provide the stiffest feel and chassis feedback. However, if you want the best performance in everyday driving, you should choose a polyurethane bushing. They have lower friction properties and eliminate binding.
Sturdy subframe bushings will provide more driver feedback. Additionally, it will strengthen the rear body, eliminating any movement caused by the subframe. You can see this structural integration on the M3 and M4 models. The benefits of solid subframe bushings are numerous. They will improve rear-end handling without compromising drivability. So if you plan to install a solid subframe bushing, be sure to choose a solid bushing.

Capacitor classification

In the circuit, there is a high electric field on both sides of the capacitor grading bushing. This is due to their capacitor cores. The dielectric properties of the primary insulating layer have a great influence on the electric field distribution within the bushing. This article discusses the advantages and disadvantages of capacitor grade bushings. This article discusses the advantages and disadvantages of grading bushings for capacitors in DC power systems.
One disadvantage of capacitor grading bushings is that they are not suitable for higher voltages. Capacitor grading bushings are prone to serious heating problems. This may reduce their long-term reliability. The main disadvantage of capacitor grading bushings is that they increase the radial thermal gradient of the main insulation. This can lead to dielectric breakdown.
Capacitor grading bushing adopts cylindrical structure, which can suppress the influence of temperature on electric field distribution. This reduces the coefficient of inhomogeneity of the electric field in the confinement layer. Capacitor grading bushings have a uniform electric field distribution across their primary insulation. Capacitive graded bushings are also more reliable than nonlinear bushings.
Electric field variation is the most important cause of failure. The electrode extension layer can be patterned to control the electric field to avoid flashover or partial discharge of the primary insulating material. This design can be incorporated into capacitor grading bushings to provide better electric fields in high voltage applications. This type of bushing is suitable for a wide range of applications. This article discusses the advantages and disadvantages of capacitor grade bushings.


When choosing between plastic and metal sleeves, it is important to choose a product that can handle the required load. Plastic bushings tend to deteriorate and often crack under heavy loads, reducing their mechanical strength and service life. Metal bushings, on the other hand, conduct heat more efficiently, preventing any damage to the mating surfaces. Plastic bushings can also be made with lubricating fillers added to a resin matrix.
Plastic bushings have many advantages over metal bushings, including being cheap and versatile. Plastic bushings are now used in many industries because they are inexpensive and quick to install. These plastic products are also self-lubricating and require less maintenance than metals. They are often used in applications where maintenance costs are high or parts are difficult to access. Also, if they are prone to wear and tear, they are easy to replace.
Metal bushings can be made of PTFE, plastic or bronze and are self-lubricating. Graphite plugs are also available for some metal bushings. Their high load capacity and excellent fatigue resistance make them a popular choice for automotive applications. The bi-metallic sintered bronze layer in these products provides excellent load-carrying capacity and good friction properties. The steel backing also helps reduce processing time and avoids the need for additional pre-lubrication.


A plastic bushing is a small ball of material that is screwed onto a nut or locknut on a mechanical assembly. Plastic bushings are very durable and have a low coefficient of friction, making them a better choice for durable parts. Since they do not require lubrication, they last longer and cost less than their metal counterparts. Unlike metal bushings, plastic bushings also don’t scratch or attract dirt.
One type of acetal sleeve is called SF-2. It is made of metal alloy, cold rolled steel and bronze spherical powder. A small amount of surface plastic penetrated into the voids of the copper spherical powder. Plastic bushings are available in a variety of colors, depending on the intended application. SF-2 is available in black or grey RAL 7040. Its d1 diameter is sufficient for most applications.
Another acetal sleeve is UHMW-PE. This material is used in the production of bearings and in low load applications. This material can withstand pressures from 500 to 800 PSI and is widely available. It is also self-lubricating and readily available. Due to its high resistance to temperature and chemical agents, it is an excellent choice for low-load industrial applications. If you’re in the market for an alternative to nylon, consider acetal.
Positional tolerances in many automotive components can cause misalignment. Misaligned plastic bushings can negatively impact the driver’s experience. For example, the cross tubes used to mount the seat to the frame are made by a stamping process. The result is a misalignment that can increase torque. Also, the plastic bushing is pushed to one side of the shaft. The increased pressure results in higher friction, which ultimately results in a poor driving experience.
China High Quality Machine Motorcycle Parts Large Stock Deep Groove Ball Bearing with IATF16949 Certificate     ball bearingChina High Quality Machine Motorcycle Parts Large Stock Deep Groove Ball Bearing with IATF16949 Certificate     ball bearing
editor by CX 2023-03-27