Offers to Sell

Nature: Slab, Tile, Quarry Blocks and Cut to Size Surface: Polished, Honed, Brushed and Bush Hammered Services Offering: Production, Supply, Export and Direct Factory Pricing.

Minimum Order: 380

Nature: Slab, Tile, Quarry Blocks and Cut to Size Surface: Polished, Honed, Brushed and Bush Hammered Services Offering: Production, Supply, Export and Direct Factory Pricing.

Minimum Order: 380

　　Different types of oil seals 　　Do you want to keep your machine away from any unwanted leaks, but aren't sure which oil seal is right for your needs? This guide will provide you with everything you need to know in order to choose the right one for your application. 　　Oil seals, also known as rotary shaft seals, fluid seals or grease seals, play an important role in closing the gap between the moving and stationary elements of mechanical equipment. 　　Automotive Oil Seals 　　By preventing the leakage of lubricants, they protect critical parts of machinery from damage caused by leaks of various fluids. These Automotive Oil Seals are used from automotive engines to assembly machines to remain free from any harmful effects that can cause serious and costly damage to any of its critical components. 　　What is a rotary shaft seal? 　　Rotary shaft or oil seals are placed between moving and stationary mechanical parts to ensure that contaminants, moisture, corrosive materials and abrasives do not damage various components. They also prevent unwanted mixing of fluids, including water and oil, from combining within the machine. 　　How are oil seals made? 　　First, an elastomer, most commonly nitrile rubber, is vulcanized to a metal ring. This creates a stiffening effect, including a specialized metal tension spring directly behind the seal lip, which keeps the oil seal firmly attached to the moving parts. 　　Oil Seal Materials 　　There are many different materials used to make oil seals. 　　Leather Oil Seals - Leather oil seals, also known as L-shaped oil seals, are most commonly used for parts that are contaminated and poorly lubricated. Because leather oil seals are pre-lubricated and absorb fluids, they are able to provide sealing performance in situations where synthetic rubber cannot. 　　Synthetic Rubber Oil Seal- Styrene-butadiene rubber oil seals, or just SBR oil seals, are highly resistant to wear and damage, making them ideal seals for fast moving machinery. They can be used for outdoor components due to their heat aging properties that can withstand extreme temperatures. They are also considered to be more cost effective oil seals than natural rubber. 　　Nitrile Oil Seals - Nitrile oil seals is the common term for acrylonitrile- butadiene rubber seals and is a very good general purpose choice due to the flexibility of use on a wide variety of components. The high resistance to fats, hot water, gasoline, mineral oil, grease and animal oil makes them the most commonly used oil seal. They do not have a large temperature range, making them a poor choice for machines with drastic temperature changes. 　　Fluoroelastomer oil seals - Fluoroelastomers are synthetic rubber and fluoropolymer elastomers used to make oil seals that offer resistance in both high temperature and low compression permanent deformation components. They also have high chemical and wear resistance, so they can be used in components that frequently interact with petroleum and solvents. 　　Polyacrylate oil seals - Mostly selected for automotive and transmission use, polyacrylate oil seals withstand fuel, oil, ozone, sunlight and weather when in use. They are the perfect choice due to the exposure of the car to all these different fluids and elements. However, they should not be used at low temperatures as their flexibility is diminished at low temperatures. 　　Silicone seals - Designed to absorb lubricants to reduce wear and friction, silicone rotary shafts also have high thermal resistance and a large temperature range. However, they do not handle wear well or interact with oxidized oils. 　　PTFE Oil Seals - A relatively new and exciting type of oil seal, the use of PTFE means they can withstand dry or unlubricated operation. With a huge thermal range of -130ºC to +200ºC and strong chemical resistance, they are considered to be the future of rotary shaft seals. 　　How to choose the right oil seal? 　　When selecting an oil seal for your next project, there are several key factors to consider to ensure protection from immediate and long-term damage to machinery. 　　Pressure - Many oil seals can only withstand low pressure applications, so it is critical to understand the permanent deformation of the component in compression. 　　Temperature - Just like pressure, it is important to know the operating temperature of the oil seal so that you can select one that can withstand high or low temperatures. PTFE has the widest temperature range, making it ideal for machines used in extreme weather or components. 　　Shaft speed - Considering the speed the shaft will be moving, runout, bearing housing bore and the type of oil being sealed is critical to ensure that you select an oil seal that will not be affected by wear or spiral deformation. 　　Fluid type - Various oil seals can withstand interaction with oil, fuel, grease, water, etc. Knowing what type of fluid the rotary shaft seal will be in constant contact with will ensure the longevity of the seal and surrounding components. 　　Amount of lubricant - Seals always perform best when lubricated, but in some machines are more likely to dry out. For these cases, it will be beneficial to choose leather or PTFE seals, as both have less lubricity than other seals. 　　We hope you find the above sharing helpful, plus the company also has Kdik Combi Oil Seal available, contact us today to ensure you have selected the right rotary shaft seal to protect your components and bring long and healthy life to all your machines!

Minimum Order: 10 long tons

Conditions: All new, Mfg. packed Power Adapter is not included Qty Available:500 units on 5 pallets. Offer Price:$69/unit OBO

Minimum Order: 500

All the profucts can process by customization. Please send me the 2D and 3D drawings with size and tolerance. We will evaluate the drawings for you and process according to the drawings. And we will keep the drawings strictly confidential. Customers can also choose processing methods With over 20 years experience, ShenZhen YuJiaXin Hardware Products Co., Ltd. is a leading manufacturer of precision metal parts in China, we provide products to consumer electronics, automotive, medical, and industrial. Metal Injection Molding,or MIM,is a new Powder Metallurgy process that can produce sintered componects with high densety and complicated shapes without the need for machining. With its unique characteristics, MIM is capable of producing precise metal parts for a wide range of products, including automobiles, cellular phones,hand tools,dental instruments,pneumatic tools, power hand tools, surgical instruments,sporting goods, and laptop computers. The common materials used in MIM range from stainless steels and alloy steels to soft magnetic matericals. Metal injection molding (MIM) is an effective way to produce complex and precision-shaped parts from a variety of materials. This process produces parts for 50% less than the cost of CNC machining or casting. MIM is able to produce parts with complex shapes, superior strength and excellent surface finish with high volume manufacturing.High volumes are attained through multi-cavity tooling. From design and tooling to production and quality engineering with in-depth technical and engineering expertise. Our business model is designed to meet the portfolio of parts that global OEMs will source in China. Our facility is growing rapidly, and adding new capabilities in a very short span of time. Please contact us to understand our current state of completion and new capabilities that we plan to add.

Minimum Order: 1 bags

All the profucts can process by customization. Please send me the 2D and 3D drawings with size and tolerance. We will evaluate the drawings for you and process according to the drawings. And we will keep the drawings strictly confidential. Customers can also choose processing methods With over 20 years experience, ShenZhen YuJiaXin Hardware Products Co., Ltd. is a leading manufacturer of precision metal parts in China, we provide products to consumer electronics, automotive, medical, and industrial. Metal Injection Molding,or MIM,is a new Powder Metallurgy process that can produce sintered componects with high densety and complicated shapes without the need for machining. With its unique characteristics, MIM is capable of producing precise metal parts for a wide range of products, including automobiles, cellular phones,hand tools,dental instruments,pneumatic tools, power hand tools, surgical instruments,sporting goods, and laptop computers. The common materials used in MIM range from stainless steels and alloy steels to soft magnetic matericals. Metal injection molding (MIM) is an effective way to produce complex and precision-shaped parts from a variety of materials. This process produces parts for 50% less than the cost of CNC machining or casting. MIM is able to produce parts with complex shapes, superior strength and excellent surface finish with high volume manufacturing.High volumes are attained through multi-cavity tooling. From design and tooling to production and quality engineering with in-depth technical and engineering expertise. Our business model is designed to meet the portfolio of parts that global OEMs will source in China. Our facility is growing rapidly, and adding new capabilities in a very short span of time. Please contact us to understand our current state of completion and new capabilities that we plan to add.

Minimum Order: 1 bags

All the profucts can process by customization. Please send me the 2D and 3D drawings with size and tolerance. We will evaluate the drawings for you and process according to the drawings. And we will keep the drawings strictly confidential. Customers can also choose processing methods With over 20 years experience, ShenZhen YuJiaXin Hardware Products Co., Ltd. is a leading manufacturer of precision metal parts in China, we provide products to consumer electronics, automotive, medical, and industrial. Metal Injection Molding,or MIM,is a new Powder Metallurgy process that can produce sintered componects with high densety and complicated shapes without the need for machining. With its unique characteristics, MIM is capable of producing precise metal parts for a wide range of products, including automobiles, cellular phones,hand tools,dental instruments,pneumatic tools, power hand tools, surgical instruments,sporting goods, and laptop computers. The common materials used in MIM range from stainless steels and alloy steels to soft magnetic matericals. Metal injection molding (MIM) is an effective way to produce complex and precision-shaped parts from a variety of materials. This process produces parts for 50% less than the cost of CNC machining or casting. MIM is able to produce parts with complex shapes, superior strength and excellent surface finish with high volume manufacturing.High volumes are attained through multi-cavity tooling. From design and tooling to production and quality engineering with in-depth technical and engineering expertise. Our business model is designed to meet the portfolio of parts that global OEMs will source in China. Our facility is growing rapidly, and adding new capabilities in a very short span of time. Please contact us to understand our current state of completion and new capabilities that we plan to add.

Minimum Order: 1 bags

All the profucts can process by customization. Please send me the 2D and 3D drawings with size and tolerance. We will evaluate the drawings for you and process according to the drawings. And we will keep the drawings strictly confidential. Customers can also choose processing methods With over 20 years experience, ShenZhen YuJiaXin Hardware Products Co., Ltd. is a leading manufacturer of precision metal parts in China, we provide products to consumer electronics, automotive, medical, and industrial. Metal Injection Molding,or MIM,is a new Powder Metallurgy process that can produce sintered componects with high densety and complicated shapes without the need for machining. With its unique characteristics, MIM is capable of producing precise metal parts for a wide range of products, including automobiles, cellular phones,hand tools,dental instruments,pneumatic tools, power hand tools, surgical instruments,sporting goods, and laptop computers. The common materials used in MIM range from stainless steels and alloy steels to soft magnetic matericals. Metal injection molding (MIM) is an effective way to produce complex and precision-shaped parts from a variety of materials. This process produces parts for 50% less than the cost of CNC machining or casting. MIM is able to produce parts with complex shapes, superior strength and excellent surface finish with high volume manufacturing.High volumes are attained through multi-cavity tooling. From design and tooling to production and quality engineering with in-depth technical and engineering expertise. Our business model is designed to meet the portfolio of parts that global OEMs will source in China. Our facility is growing rapidly, and adding new capabilities in a very short span of time. Please contact us to understand our current state of completion and new capabilities that we plan to add.

Minimum Order: 1 bags

All the profucts can process by customization. Please send me the 2D and 3D drawings with size and tolerance. We will evaluate the drawings for you and process according to the drawings. And we will keep the drawings strictly confidential. Customers can also choose processing methods With over 20 years experience, ShenZhen YuJiaXin Hardware Products Co., Ltd. is a leading manufacturer of precision metal parts in China, we provide products to consumer electronics, automotive, medical, and industrial. Metal Injection Molding,or MIM,is a new Powder Metallurgy process that can produce sintered componects with high densety and complicated shapes without the need for machining. With its unique characteristics, MIM is capable of producing precise metal parts for a wide range of products, including automobiles, cellular phones,hand tools,dental instruments,pneumatic tools, power hand tools, surgical instruments,sporting goods, and laptop computers. The common materials used in MIM range from stainless steels and alloy steels to soft magnetic matericals. Metal injection molding (MIM) is an effective way to produce complex and precision-shaped parts from a variety of materials. This process produces parts for 50% less than the cost of CNC machining or casting. MIM is able to produce parts with complex shapes, superior strength and excellent surface finish with high volume manufacturing.High volumes are attained through multi-cavity tooling. From design and tooling to production and quality engineering with in-depth technical and engineering expertise. Our business model is designed to meet the portfolio of parts that global OEMs will source in China. Our facility is growing rapidly, and adding new capabilities in a very short span of time. Please contact us to understand our current state of completion and new capabilities that we plan to add.

Minimum Order: 1 bags

DATIAN (DT) Fastener is famous for producing quality heavy hex nuts. We, one of the professional heavy hex nut manufacturers, have a in house full line heat treatment machine used to improve the hardness and mechanical properties of heavy hexagonal nut in order to serve different high requirement areas. The heavy hex jam nut standard we listed below are most ASTM A194/A563 and ANSI/ASME B18.2.2 heavy hex nuts. Compare to finished hex nuts, the heavy hex nut carry higher grade and slightly wider and thicker diameters to meet the greater length of thread engagement and better resistance to stretching or widening. Contact DT Fastener, a professional nuts and bolts manufacturing company, for more info now! Heavy Hex vs Hex The first thing to declare is that both heavy hex bolt nut and finished hex nuts belong to the hexagon nut classification. Simply put, the difference between them is that heavy hex nuts have larger widths across the flats and heights of the same nominal size. This gives heavy hex nuts higher load retention and tensile strength. This also explains why heavy hex nuts can be heat treated to achieve higher hardness. There are two production processes for Datian Fastener's Heavy hexagon nuts - cold heading and hot heading. The cold heading machine of Datian Fasteners has the ability to form the nut from raw material to finished product at one time. Our cold heading machine integrates the rolling thread machine and the cold heading machine to maximize efficiency, ensure the customer's delivery requirements, and minimize the labor cost, which makes the price of our heavy hexagonal nut competitive all over the world. Hot forming: Generally, hot forming is selected for larger fasteners, and the diameter range are generally 1''~4''~(M30~M100) or even larger. The material used in the hot heading machine is generally round steel, without cold drawing and pickling. The production step is to cut the material first, and then upsetting by the punch. The surface of the semi-finished product of red punching is rougher than that of cold heading. After tapping, the two sides of the nut are chamfered with a CNC machine, and finally it is completed after heat treatment and surface treatment. Cold heading and hot heading are roughly divided into the following steps: Cold heading: wire drawing - cold heading - (heat treatment) - tapping - surface treatment Hot forming: cutting material - red punching - chamfering - turning - (heat treatment) - tapping - surface treatment Or cutting material - upsetting ball - annealing, phosphating - forming - punching - (heat treatment) - tapping - surface treatment. There are many hex nuts suppliers, but we are one of the best choices for you.

The nearly 20 years that DATIAN (DT) Fasteners has specialized in the production of heavy hex bolts. Many customers need to purchase by sets. Our loyal customers usually need to source hex bolts / heavy hex head bolts together with hex nuts. As a professional heavy hex bolt suppliers, DT provides complete heavy hex bolt supply chain services. we are able to produce A307 B heavy hex cap screws, A193 B7 heavy hex bolt, A325 heavy hex screws, etc. Types Of Heavy Hex Head Bolt For Sale Get Heavy Hex Bolt At A Great Price A325 Heavy Hex Bolts A193 B7 Hex Bolt DIN 933 Hex Bolt A307B Heavy Hex Bolts heavy hex bolt heavy hex bolt 1 heavy hex bolt 2 heavy hex bolt 3  Heavy Hex Head Bolt Applications High-strength hexagon bolts are mechanical properties of grade 8.8 or above, and they are all bolts that require heat treatment Bolts made of high-strength steel, or bolts that require a large pre-tightening force, can be called high-strength bolts. High-strength bolts are mostly used for the connection of bridges, rails, high-voltage, and ultra-high-voltage equipment. The fracture of this kind of bolt is a mostly brittle fracture. High-strength bolts applied to ultra-high pressure equipment need to be prestressed to ensure the sealing of the container. Application areas of high-strength bolts: Steel Fabrication, Construction of Railroad Systems, Pumps, and Water treatment, Construction of Modular Buildings, and Renewable and Alternative Energy. Heavy Hex Head Bolt Manufacturing Process Steps Include: Usually, the forming of the bolt head is processed by cold heading. The cold heading forming process includes cutting and forming, single-station single- click, double-click cold heading and multi-station automatic cold heading. An automatic cold heading machine performs multi-station processes such as stamping, heading forging, extrusion and diameter reduction in several forming dies. (1) Use a semi-closed cutting tool to cut the blank, the easiest way is to use a sleeve type cutting tool. (2) During the transfer of short-sized blanks from the previous station to the next forming station, the metal fasteners with complex structures are processed to improve the accuracy of the parts. (3) Each forming station should be equipped with a punch return device, and the die should be equipped with a sleeve-type ejector device. (4) The structure of the main slider guide rail and process components can ensure the positioning accuracy of the punch and the die during the effective use period. (5) The terminal limit switch must be installed on the baffle that controls the material selection, and attention must be paid to the control of the upsetting force. Heat Treatment Of High-Strength Heavy Hex Screw: High-strength nuts and bolts must be quenched and tempered according to technical requirements. The purpose of heat treatment and tempering is to improve the comprehensive mechanical properties of the heavy hex bolt to meet the specified tensile strength value and yield ratio of the product. The heat treatment process has a crucial impact on high-strength fasteners, especially their intrinsic quality. Therefore, in order to produce high-quality heavy hex head bolts, advanced heat treatment technology and equipment must be available. As one of the leading heavy hex bolt manufacturers in China, DT Fastener possesses a complete production line of heavy hex cap screws. Feel free to contact us for more details! For more information about fastener price and heavy hex bolt price, please feel free to contact us!

GB/T 923 acorn hex nut introduction: GB/T 923 black acorn nuts is a nut with a cap, whose function is to prevent foreign impurities and moisture from invading the interior and cause corrosion and rust. At the same time, in places where some industrial machinery often comes into contact with the human body, the GB/T 923 acorn nuts and bolts are often selected as bolt capping to reduce the damage to the human body by the machinery. The purpose of the acorn nuts bolts is the same as that of the hex nuts for sale. Its characteristic is that it is not easy to slip the main nut with a wrench during assembly and disassembly. dismantle. Mainly used for rough and simple parts. GB/T 923 Acorn Hex Nut Specifications  GB /T 923 Acorn Nuts and Bolts GB /T 923 - 2009 Acorn Hex Nuts There are many nuts and bolts manufacturers, but we are one of the best choices for you. For more information about different types of fastener, please feel free to contact us!

GB/T 889.2 lockable nut has the following 3 advantages: First, excellent anti-vibration performance: when the thread is tightened, the crest thread of the lockable nut and bolt tightly enters the 30° wedge-shaped slope of the nut and is clamped, and the normal force exerted on the wedge- shaped slope is the same as the bolt's normal force. The axis forms an included angle of 60° instead of 30°. Therefore, the normal force generated when the anti-loose nut is tightened is much larger than that of the ordinary standard lock nut screw, and it has a great anti-loose and anti-vibration ability. Second, the wear resistance and shear resistance are strong: the 30° slope of the nut thread bottom can make the lockable nut locking force evenly distributed on the threads of all the teeth. Lock nut pack can better solve the problems of thread wear and shear deformation. Third, the repeated use performance is good: a lot of use shows that the locking force of the locking nuts and bolts will not decrease after repeated tightening and dismantling, and the original locking effect can be maintained. GB/T 889.2 Lockable Nut Specifications  GB /T 889.2 Lockable Nut And Bolt GB /T 889.2 - 2016 Prevailing Torque Type Hexagon Nuts(With Non-Metallic Insert), Style 1-Fine Pitch Thread If you need any kinds of nut and bolt supply, please contact us, as one of the most professional fastener manufacturers, Datian is willing to offer you high quality products.

GB/T 12868 Black T Nuts Features: The principle of the inclined plane is adopted, the deformation of the inclined plane is integrated to form a thread, and then it is rotated into a parallel motion, the lead screw is rotated once, and the bolt and t nut is moved to a pitch. GB/T 12868 black hex t nut can effectively save time and effort. GB/T 12868 Galvanized heavy duty t nuts Specifications  Heavy Duty T-Nuts GB /T 12868 GB /T 12868 - 1991 T-Slot Nut If you need any kinds of quality fasteners, please contact us, as a professional fasteners manufacturer in China, Datian is willing to offer you high quality products.