China Good quality API 11b 5/8′′, 3/4′′, 7/8′′ Class T and Class Sm Sucker Rod Coupling coupling and cohesion

Product Description

Product Description

   Class T coupling is using AISI 5140 to manufacture.The coupling is coated using phosphate chemical treatment or black oxide on customer’s request.For Class SM coupling, the spray metal is a specification hardening process and is applied on the base metal.
   The couplings are available in full size, slim hole and over size.Also, combination couplings are available for different diameters (sub-coupling) for both Class T and Class SM couplings.
   We recommend changing sucker rod couplings after 3 make-ups, provided the connection threads have been inspected and deemed acceptable for reuse

Product Parameters

    Chemical Properties, %: Class T Coupling
Steel AISI    5140
C 0.37~0.44
Si 0.17~0.37
Mn 0.50~0.80
P ≤0.040
S ≤0.040
   Spray Metal Coating Chemical  Properties, %: Class SM Coupling
Carbon 0.50~1.00
Silicon 3.50~5.50
Phosphorus 0.00~0.02
Sulfur 0.00~0.02
Chromium 12.00~18.00
Boron 2.50~4.50
Iron 3.00~5.50
Cobalt 0.00~0.10
Titanium 0.00~0.05
Aluminum 0.00~0.05
Zirconium 0.00~0.05
Nickel Balance


OD Coupling OD Length Wrench length  Wrench width
mm in (inch- mm) (inch- mm) mm mm
16 5/8 38.1(1.500) 101.6(4.000) 31.8 34.9
19 3/4 41.3(1.625) 101.6(4.000) 31.8 38.1
22 7/8 46.0(1.812) 101.6(4.000) 31.8 41.3
25 1 55.6(2.187) 101.6(4.000) 31.8 47.6
29 1 1/8 60.3(2.375) 114.3(4.500) 41.3 53.9


Packaging & Shipping

Company Profile

HangZhou Zhao Xin Industry and Trade Co., Ltd. was established in 2001. Our company is located in HangZhou city which has the second largest Oilfield (Shengli Oilfield) in China. We are a company, which conducts scientific research, development, manufacture, sale and after sale service, is 1 enterprise for oilfield tool and equipment manufacturer. We cover an area of more than 9000 square CZPT which manufacture different oilfield products. Our main products include drilling equipment, oil production equipment, oil well service tools. Such as sucker rod, drill pipe, OCTG products, bridge plug. Currently, our products are already exported to North America, South America, Middle East, Middle Aisa, India and other countries and regions. The warranty period of all our products is 18 months.

We are an I S O 9 0 0 1, I S O 1 4 0 0 1, I S O 4 5 0 0 1,API certified company and have all the quality systems in place for design, plHangZhou, manufacturing and quality monitoring & traceability to ensure that all products match the quality & reliability Standards. We also have an independent measurement and inspection department, the inspection and measuring tools are fully equipped, we control each process to ensure that all products are qualified.

HangZhou CZPT Industry and Trade Co.,Ltd with perfect attitude, product and service, is going to make further development together with customers at home and abroad .

After-sales Service: Yes
Warranty: 1 Year
Manufacturing Process: Casting
Surface Treatment: Galvanized
Operation Pressure: Atmospheric Pressure
Material: Alloy
US$ 500/Piece
1 Piece(Min.Order)

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Understanding the Different Types of Couplings

A coupling is a device that joins two rotating shafts together. It transmits power from one to the other and is designed to allow some amount of end-movement and misalignment. It is a simple mechanism that is extremely common in many industries. Learn more about couplings in this article.

Flexible coupling

When choosing the correct flexible coupling for your application, there are several factors to consider. One of the most important factors is backlash, which is the amount of rotational play introduced by moving parts. Other factors to consider include lubrication and accessibility for maintenance. Choosing the right flexible coupling can be challenging, but it is possible to find the right fit for your specific application.
A flexible coupling is an excellent choice for applications that require high alignment accuracy, which is essential for reliable system performance. These couplings can compensate for angular and parallel misalignment, ensuring proper positioning between the driving and driven shafts. In addition, flexible couplings are more affordable than most traditional couplings.
The most common flexible coupling is the elastomeric type, which uses a resilient material to transmit torque. These couplings can be made of plastic or rubber. In either case, they can be relatively lightweight compared to other types of couplings. Elastomeric couplings can also be used for high-speed applications.
Another important factor to consider when selecting the best Flexible Coupling is the pipe you’re connecting. Some couplings are easier to install than others, and some even have tapered edges to make them slide easily on the pipe. Regardless of the choice you make, it’s crucial to remember that proper installation is critical for reliability and safety.

CZPT coupling

An CZPT coupling is a flexible, mechanical coupling that features a high degree of angular misalignment and eccentricity. They are available in different lengths, with MOL being the longest. They are ideal for applications that involve high parallel misalignment, limited assembly access, electrical insulation, and other conditions.
CZPT couplings are a versatile type of coupling, and they are often used to connect parallel shafts. They work by transmitting torque from one to the other using the same speed and rotation mechanism. They are available in various materials, including aluminum, brass, and polymers. In addition, they can work under high temperatures.
One of the main benefits of using an CZPT coupling is the fact that it does not require the use of a gearbox. These couplings are flexible, and their design allows them to cope with misalignment problems that may occur in power transmission applications. They are also able to absorb shock.
Another advantage of CZPT couplings is that they are suitable for systems with low-to-medium amounts of shaft misalignment. Because their friction is limited to the surface of the hubs, they are able to accommodate low bearing loads. CZPT couplings can also be used in systems with limited shaft access, since the disks are easily removed.

Clamped coupling

Clamped couplings are designed to provide a high-strength connection between two objects. A standard coupling has two parts: a nipple and a clamp sleeve. Each part is designed in such a way as to cooperate with each other. The sleeve and clamp are made of rubber. A reinforcing braid is often used to protect the exposed steel braid from rusting.
PIC Design provides a wide variety of standard clamping couplings for many different industries. These include medical, dental, military, laboratory, and precision industrial control equipment. They have a simple design that makes them ideal for these applications. Clamped couplings are also available for custom manufacturing. These couplings are available in metric, inch, and Metric.
The most common type of clamp coupling is a hose clamp. This type of coupling is used to connect two hoses or piping units. It consists of two conical binding sleeves that fit into the ends of the two parts. The coupling is then tightened with a screwdriver. It’s a versatile coupling because it allows two piping units or hoses to be joined together.
Another type of clamp coupling is the two-piece clamp coupling. The two-piece design allows for a quick and easy installation. Unlike other types of couplings, the clamp coupling is not necessary to remove the bearings before installing it. Its keyway is designed with shims in place so that it fits over the shaft. These couplings are available in different sizes, and they are made of steel or dutile iron.

Helicoidal coupling

Helicoidal coupling is a form of nonlinear coupling between two molecules. It occurs when the molecules in a double helix are subjected to oscillations. These oscillations can occur either in the right or left-handed direction. These oscillations are called solitons. Helicoidal coupling can provide quantitative or qualitative support to a structure, such as an electron.

Split Muff coupling

The Split-Muff Coupling market report provides detailed market analysis and key insights. The study covers the market size, segmentation, growth and sales forecast. It also examines key factors driving the market growth and limiting its development. The report also covers current trends and vendor landscapes. Therefore, you can get a deep understanding of the Split-Muff Coupling industry and make the right business decisions.
The report also provides data on the competitive landscape and the latest product and technology innovations. It also provides information on market size, production and income. It also covers the impact of the COVID-19 regulations. The market report is a valuable resource for companies looking to expand their businesses, or to improve existing ones.
In terms of application, Split-Muff Couplings can be used in light to medium duty applications. They are shaped like a semi-cylindrical disc that fits over a shaft. Both parts are threaded for assembly and disassembly. It can be disassembled easily and quickly, and can be used for medium to heavy-duty applications with moderate speeds.
Split Muff couplings are the most popular type of couplings for transferring wet and abrasive materials. Their flanged end fits on most major brands of smooth material muff hoses. In addition, this type of coupling is corrosion-resistant and easy to install. It also does not require any adjustments to the drive shaft’s position.

Flexible beam coupling

The Flexible beam coupling is one of the most popular types of couplings in the industry. It is comprised of two sets of parallel coils separated by a solid member, and it offers a wide range of torsional stiffness. These couplings are made of aluminum alloy or stainless steel. They offer excellent flexibility and are less expensive than many other types of couplings. They also require zero maintenance and can tolerate shaft misalignment.
Beam couplings are categorized into two types: helical and axial. The former is characterized by a high degree of flexibility, while the latter is used to compensate for higher misalignment. Both types are suitable for small torque applications and are available in a wide range of shaft sizes.
Flexible beam couplings are available in metric and US sizes, and feature a variety of options. They feature stainless steel or aluminum materials and are highly durable and corrosion-resistant. They also offer high torque capacities and excellent fatigue resistance. Flexible beam couplings are available with a wide range of options to meet your unique application needs.
China Good quality API 11b 5/8′′, 3/4′′, 7/8′′ Class T and Class Sm Sucker Rod Coupling   coupling and cohesionChina Good quality API 11b 5/8′′, 3/4′′, 7/8′′ Class T and Class Sm Sucker Rod Coupling   coupling and cohesion
editor by CX 2023-08-04

As one of leading flexible coupling manufacturers, suppliers and exporters of mechanical products, We offer flexible coupling and many other products.

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