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Knuckle Joints（Type：Accessories）
A knuckle joint is a type of pin joint used to join two components that are loaded in tension. One component has a fork with a hole passing through both sides, forming a double eye, while the other component has a single eye. The single eye is inserted between the double eyes so that all three holes are concentric a
A knuckle joint is a type of pin joint used to join two components that are loaded in tension. One component has a fork with a hole passing through both sides, forming a double eye, while the other component has a single eye. The single eye is inserted between the double eyes so that all three holes are concentric and a pin is used to secure the components. Knuckle joints are often used to connect rods subjected to tension in structures such as roof ties, bridges, and cranes. The links of a chain are also considered a series of knuckle joints. Simplicity means that knuckle joints are easily manufactured while being strong and rigid under tension loads. They’re also easily assembled and disassembled.
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Knuckle Joint for Air Cylinder CJ2/CM2/CG1/CQ2 Series
SMC
Knuckle joint for air cylinder CJ2/CM2/CG1 series and compact cylinder CQ2 series.[Please refer to the followings for the catalog]p. 63, CJ2 seriespp. 189 and 190, CM2 seriespp. 309 and 309-1, CG1 seriesp. 796, CQ2 series
Mounting Method Thread Size M(mm) Type Thread Pitch(mm) Material Accessories Included - - Accessories - Stainless Steel ～ Steel Included / Not Included Days to Ship: Số ngày giao hàng: 4 Day(s) or more 
4 Day(s) or more
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Knuckle Joint for Air Cylinder CA2 / CNA2 Series
SMC
Knuckle joint for air cylinder CA2 / CNA2 series.
Mounting Method Thread Size M(mm) Type Thread Pitch(mm) Material Accessories Included - - Accessories - Stainless Steel ～ Steel Included From: 40,000 VND Days to Ship: Số ngày giao hàng: 32 Day(s)
32 Day(s)
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Knuckle Joint for Air Cylinder, MB/MB1/MNB Series
SMC
Knuckle joint for air cylinder MB/MB1/MNB series.
Mounting Method Thread Size M(mm) Type Thread Pitch(mm) Material Accessories Included - - Accessories - Steel Included From: 38,000 VND Days to Ship: Số ngày giao hàng: 32 Day(s)
32 Day(s)
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Knuckle Joint for Air Cylinder CS1, CNS, CLS Series
SMC
Knuckle joint for air cylinder CS1, CNS, CLS series.
Mounting Method Thread Size M(mm) Type Thread Pitch(mm) Material Accessories Included - - Accessories - Cast Iron ～ Stainless Steel Included From: 255,000 VND Days to Ship: Số ngày giao hàng: 25 Day(s) or more
25 Day(s) or more
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Knuckle Joint for Pin Cylinder CJP2 Series
SMC
[Features]·Knuckle joint for Pin Cylinder CJP2 Series.
Mounting Method Thread Size M(mm) Type Thread Pitch(mm) Material Accessories Included - - Accessories - Stainless Steel Included From: 23,000 VND Days to Ship: Số ngày giao hàng: 32 Day(s)
32 Day(s)
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Double Knuckle Joint Pin for CMK2, CMA2, CKV2, JSK2, JSM2 Brackets
CKD
Double notched knuckle for SSD. Pin (including ring) is attached.
Mounting Method Thread Size M(mm) Type Thread Pitch(mm) Material Accessories Included - - Accessories - Steel Included From: 167,473 VND Days to Ship: Số ngày giao hàng: 6 Day(s) or more
6 Day(s) or more
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Brackets for SSD2, Pin for Double Notched Knuckle Joint
CKD
Double notched knuckle pin for SSD2.
Mounting Method Thread Size M(mm) Type Thread Pitch(mm) Material Accessories Included - - Accessories - - Not Included From: 148,101 VND Days to Ship: Số ngày giao hàng: 6 Day(s) or more
6 Day(s) or more
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SSD/USSD Fitting, Pin for Double Notched Knuckle Joint
CKD
Double notched knuckle joint pin for cylinder SSD, USSD.
Mounting Method Thread Size M(mm) Type Thread Pitch(mm) Material Accessories Included - - Accessories - - Not Included From: 171,222 VND Days to Ship: Số ngày giao hàng: 6 Day(s) or more
6 Day(s) or more
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Double Knuckle Joint Pin for SSD Brackets
CKD
Pin for double knuckle (Y).[Features]·Material: Steel (zinc chromate treatment).[Applications]·For double knuckle (Y).
Mounting Method Thread Size M(mm) Type Thread Pitch(mm) Material Accessories Included - - Accessories - - Not Included From: 108,732 VND Days to Ship: Số ngày giao hàng: 12 Day(s) or more
12 Day(s) or more
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Specification/DimensionsĐặc điểm kỹ thuật / Kích thướcĐặc điểm kỹ thuật / Kích thước
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Application example related to this categoryVí dụ ứng dụng liên quan đến danh mục này
Related Categories to Knuckle JointsDanh mục liên quan đến Knuckle Joints
FAQ Knuckle Joints
- Question: In what applications are knuckle joints typically used?
- Answer: knuckle joints are commonly utilized in mechanisms requiring controlled rotational movement. They find applications in steering systems for automobiles and aircraft, allowing for precise direction control. In industrial machinery, such as cranes and robotic arms, knuckle joints facilitate movement in specific directions, enhancing versatility. Moreover, they play a vital role in construction equipment like excavators and loaders, ensuring efficient operation. Additionally, knuckle joints feature prominently in material handling systems and medical devices, providing flexibility and controlled articulation for various functions in engineering work.
- Question: What materials are commonly used for knuckle joints?
- Answer: Knuckle joints, vital for controlled rotational movement, utilize diverse materials based on specific needs. Steel, including carbon, alloy, and stainless variants, offers durability and corrosion resistance, fitting for industrial applications. Aluminum alloys balance strength and lightness, favored in aerospace and automotive sectors. Brass and bronze, prized for corrosion resistance and malleability, find use in architectural and heavy-duty contexts. Titanium's exceptional strength-to-weight ratio and corrosion resistance suit aerospace and high-performance machinery. Material selection hinges on factors like strength, weight, corrosion resistance, and environmental conditions, ensuring optimal functionality in diverse applications.
- Question: How do you maintain a knuckle joint?
- Answer: Maintaining a knuckle joint involves routine checks and actions to ensure its smooth operation and longevity. First, inspect the joint regularly for wear, damage, or misalignment. Clean the joint to remove dirt and debris that can cause friction and premature wear. Apply lubrication as recommended by the manufacturer to reduce friction and prevent corrosion. Tighten any loose fasteners to maintain structural integrity. Replace worn or damaged components promptly to prevent further issues. Finally, conduct operational tests to verify proper functionality. By following these steps, you can ensure the knuckle joint operates effectively and safely, extending its service life and minimizing downtime.
- Question: How do you determine the correct size of a knuckle joint for a specific application?
- Answer: Determining the correct size of a knuckle joint involves a comprehensive assessment of various factors. This includes analyzing the application's load requirements (static and dynamic), considering the necessary range of motion, evaluating environmental conditions, accommodating space limitations, and addressing mounting considerations. applications on industry standards, guidelines, and possibly consultations with experts to ensure the selected size can effectively withstand expected loads and movements while fitting seamlessly into the application's requirements.
- Question: Are there any limitations to using knuckle joints?
- Answer: Knuckle joints have limitations, including wear and fatigue over time, particularly under high loads or harsh conditions. They may introduce backlash or play, impacting precision, and improper maintenance or lubrication can hasten wear. The designer must carefully consider these factors when integrating knuckle joints into designs, ensuring optimal performance and longevity.
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