In what applications are knuckle joints typically used?

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.

What materials are commonly used for knuckle joints?

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.

How do you maintain a knuckle joint?

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.

How do you determine the correct size of a knuckle joint for a specific application?

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.

Are there any limitations to using knuckle joints?

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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Knuckle Joints（Thread Size M：M10）

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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Type	Single Notched Knuckle Joints Double Notched Knuckle Joints Accessories
Brand	(6) (0) CKD (5)
CAD	2D 3D
Days to Ship	All 5 Day(s) or Less 6 Day(s) or Less 8 Day(s) or Less 9 Day(s) or Less 10 Day(s) or Less Others

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Knuckle Joints − Fixed

MISUMI

Knuckle joints with fixed dimensions. Pins are included as an accessory.

Volume Discount

CAD ：: 2D / 3D

Mounting Method	Thread Size M(mm)	Type	Thread Pitch(mm)	Material	Accessories Included
-	M10	Single Notched Knuckle Joints / Double Notched Knuckle Joints	1.25	Steel / Stainless Steel	Included

From: ₹ 991.00
Days to Ship: 6 Day(s) or more

6 Day(s) or more

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Knuckle Joints - Tapped, Configurable

MISUMI

Knuckle Joints - Tapped, Configurable - equipped with Rotation Stopper and compatible with M3~M26 screws regardless of Convex Type or Concave Type.

CAD ：: 2D / 3D

Mounting Method	Thread Size M(mm)	Type	Thread Pitch(mm)	Material	Accessories Included
Tapped	M10	Single Notched Knuckle Joints / Double Notched Knuckle Joints	1.25 ～ 1.5	Steel / Stainless Steel	Not Included

8 Day(s) or more

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Knuckle Joints - Threaded, Configurable

MISUMI

Knuckle Joints - Threaded, Configurable - equipped with Rotation Stopper and compatible with M3~M26 screws regardless of Convex Type or Concave Type.

CAD ：: 2D / 3D

Mounting Method	Thread Size M(mm)	Type	Thread Pitch(mm)	Material	Accessories Included
Threaded	M10	Single Notched Knuckle Joints / Double Notched Knuckle Joints	1.5	Steel / Stainless Steel	Not Included

Days to Ship: 10 Day(s) or more

10 Day(s) or more

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SSD Double Clevis Knuckle Joint

CKD

Mounting bracket to be attached to the cylinder.
[Features]
·Available as a double knuckle joint (Y/Y2).
[Applications]
·For SSD series.

CAD ：: 2D / 3D

Mounting Method	Thread Size M(mm)	Type	Thread Pitch(mm)	Material	Accessories Included
-	M10	Double Notched Knuckle Joints	1.25	-	Included

From: ₹ 1,600.24
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Double Notched Knuckle Joint for SCM

CKD

Double notched knuckle for SCA2, JSC3, USC, HCA. Pins and retaining rings are attached.

Mounting Method	Thread Size M(mm)	Type	Thread Pitch(mm)	Material	Accessories Included
Tapped	M10	Double Notched Knuckle Joints	1.25	Steel	Included

From: ₹ 1,324.67
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Knuckle Joints - Tool Less

MISUMI

Can be assembled quickly and is excellent in maintainability.

Volume Discount

CAD ：: 2D / 3D

Mounting Method	Thread Size M(mm)	Type	Thread Pitch(mm)	Material	Accessories Included
-	M10	Double Notched Knuckle Joints	-	Steel / Stainless Steel	Not Included

From: ₹ 2,144.95
Days to Ship: 8 Day(s) or more

8 Day(s) or more

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Knuckle Joints - B Selectable

MISUMI

Knuckle Joints equipped with Rotation Stopper and compatible with M3~M18 screws regardless of Convex Type or Concave Type.

CAD ：: 2D / 3D

Mounting Method	Thread Size M(mm)	Type	Thread Pitch(mm)	Material	Accessories Included
Tapped	M10	Single Notched Knuckle Joints / Double Notched Knuckle Joints	1.25 ～ 1.5	Steel / Stainless Steel	Not Included

Days to Ship: 9 Day(s)

9 Day(s)

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Joint, Brackets for CMK2/CMA2/CKV2 /JSK2/JSM2/SSD/HCA

CKD

Knuckle joint for cylinder CMK2, CMA2, CKV2, JSK2, JSM2, SSD, HCA.

Mounting Method	Thread Size M(mm)	Type	Thread Pitch(mm)	Material	Accessories Included
Tapped	M10	Single Notched Knuckle Joints / Double Notched Knuckle Joints	1.25	Steel	Not Included

From: ₹ 1,333.98
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Knuckle Joints - Extra Short

MISUMI

Can be utilized by combining T-shaped/U-shaped Knuckle Joints for space saving.

Volume Discount

CAD ：: 2D / 3D

Mounting Method	Thread Size M(mm)	Type	Thread Pitch(mm)	Material	Accessories Included
-	M10	Single Notched Knuckle Joints	1.25	Steel / Stainless Steel	Not Included

From: ₹ 5,069.87
Days to Ship: 8 Day(s) or more

8 Day(s) or more

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Single Knuckle Joint for SCM Brackets

CKD

Single clevis knuckle for CMK2, CMA2, CKV2, JSK2, JSM2.

Mounting Method	Thread Size M(mm)	Type	Thread Pitch(mm)	Material	Accessories Included
Tapped	M10	Single Notched Knuckle Joints	1.25	Steel	Not Included

From: ₹ 1,084.02
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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SSD Fitting - Single Peaked Knuckle Joint

CKD

Single clevis knuckle joint for cylinder SSD.

CAD ：: 2D / 3D

Mounting Method	Thread Size M(mm)	Type	Thread Pitch(mm)	Material	Accessories Included
Tapped	M10	Single Notched Knuckle Joints	1.25	-	Not Included

From: ₹ 1,318.07
Days to Ship: 5 Day(s) or more

5 Day(s) or more


Brand
Product Series
CAD
From
Days to Ship
Mounting Method
Thread Size M(mm)
Type
Thread Pitch(mm)
Material
Accessories Included

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Brand	MISUMI	MISUMI	MISUMI	CKD	CKD	MISUMI	MISUMI	CKD	MISUMI	CKD	CKD
Product Series	Knuckle Joints − Fixed	Knuckle Joints - Tapped, Configurable	Knuckle Joints - Threaded, Configurable	SSD Double Clevis Knuckle Joint	Double Notched Knuckle Joint for SCM	Knuckle Joints - Tool Less	Knuckle Joints - B Selectable	Joint, Brackets for CMK2/CMA2/CKV2 /JSK2/JSM2/SSD/HCA	Knuckle Joints - Extra Short	Single Knuckle Joint for SCM Brackets	SSD Fitting - Single Peaked Knuckle Joint
CAD	2D / 3D	2D / 3D	2D / 3D	2D / 3D		2D / 3D	2D / 3D		2D / 3D		2D / 3D
From	₹ 991.00			₹ 1,600.24	₹ 1,324.67	₹ 2,144.95		₹ 1,333.98	₹ 5,069.87	₹ 1,084.02	₹ 1,318.07
Days to Ship	6 Day(s) or more	8 Day(s) or more	10 Day(s) or more	5 Day(s) or more	5 Day(s) or more	8 Day(s) or more	9 Day(s)	5 Day(s) or more	8 Day(s) or more	5 Day(s) or more	5 Day(s) or more
Mounting Method	-	Tapped	Threaded	-	Tapped	-	Tapped	Tapped	-	Tapped	Tapped
Thread Size M(mm)	M10	M10	M10	M10	M10	M10	M10	M10	M10	M10	M10
Type	Single Notched Knuckle Joints / Double Notched Knuckle Joints	Single Notched Knuckle Joints / Double Notched Knuckle Joints	Single Notched Knuckle Joints / Double Notched Knuckle Joints	Double Notched Knuckle Joints	Double Notched Knuckle Joints	Double Notched Knuckle Joints	Single Notched Knuckle Joints / Double Notched Knuckle Joints	Single Notched Knuckle Joints / Double Notched Knuckle Joints	Single Notched Knuckle Joints	Single Notched Knuckle Joints	Single Notched Knuckle Joints
Thread Pitch(mm)	1.25	1.25 ～ 1.5	1.5	1.25	1.25	-	1.25 ～ 1.5	1.25	1.25	1.25	1.25
Material	Steel / Stainless Steel	Steel / Stainless Steel	Steel / Stainless Steel	-	Steel	Steel / Stainless Steel	Steel / Stainless Steel	Steel	Steel / Stainless Steel	Steel	-
Accessories Included	Included	Not Included	Not Included	Included	Included	Not Included	Not Included	Not Included	Not Included	Not Included	Not Included

Configure

Specification/Dimensions

Mounting Method
- Tapped
- Threaded
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Thread Size M(mm)
M3

M4

M5

M6

M8

M10

M12

M14

M16

M18

M20

M22

M26

M30
Clear

Thread Pitch(mm)
0.5

0.7

0.8

1

1.25

1.5

2

2.5
Clear

Material
- Steel
- Stainless Steel
- Cast Iron
Clear

Accessories Included
- Included
- Not Included
Clear

Related Categories to 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.