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（Type：Double Notched Knuckle Joints）

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	(5) (0) CKD (7)
CAD	2D 3D
Days to Ship	All 5 Day(s) or Less 6 Day(s) or Less 8 Day(s) or Less 10 Day(s) or Less 11 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
-	M3 ～ M18	Double Notched Knuckle Joints	0.5 ～ 1.5	Steel / Stainless Steel / Cast Iron	Included

From: ₹ 549.00
Days to Ship: 6 Day(s) or more

6 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	M3 ～ M20	Double Notched Knuckle Joints	0.5 ～ 2.5	Steel / Stainless Steel	Not Included

Days to Ship: 10 Day(s) or more

10 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	M8 ～ M26	Double Notched Knuckle Joints	1.25 ～ 1.5	Steel / Cast Iron	Included

From: ₹ 1,305.91
Days to Ship: 5 Day(s) or more

5 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
-	M5 ～ M22	Double Notched Knuckle Joints	0.8 ～ 1.5	-	Included / Not Included

From: ₹ 848.36
Days to Ship: 5 Day(s) or more

5 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	M3 ～ M26	Double Notched Knuckle Joints	0.5 ～ 1.5	Steel / Stainless Steel	Not Included

8 Day(s) or more

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Double Notched Knuckle Metal Joint for SCA2/JSC3/USC/HCA

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
-	M14 ～ M26	Double Notched Knuckle Joints	1.5	Cast Iron	Included

From: ₹ 2,337.02
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
-	M4 ～ M10	Double Notched Knuckle Joints	-	Steel / Stainless Steel	Not Included

From: ₹ 1,378.90
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	M3 ～ M18	Double Notched Knuckle Joints	0.5 ～ 1.5	Steel / Stainless Steel	Not Included

8 Day(s) or more

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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
-	M10	Double Notched Knuckle Joints	1.25	Steel	Not Included

From: ₹ 1,653.71
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Fittings for CMK2/CMA2/CKV2/JSK2/JSM2, Double Knuckle Joint

CKD

Double notched knuckle for cylinder CMK2, CMA2, CKV2, JSK2, JSM2. Pins and retaining rings are attached.

Mounting Method	Thread Size M(mm)	Type	Thread Pitch(mm)	Material	Accessories Included
-	M12	Double Notched Knuckle Joints	1.5	Steel	Included

From: ₹ 1,650.85
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Brackets for SCG, JSG Double Notched Knuckle Joint

CKD

Double notched knuckle for SCG, JSG. Pins and split pins / flat washers are attached.

Mounting Method	Thread Size M(mm)	Type	Thread Pitch(mm)	Material	Accessories Included
-	M14	Double Notched Knuckle Joints	1.5	Cast Iron	Included

From: ₹ 2,647.44
Days to Ship: 13 Day(s) or more

13 Day(s) or more

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Double knuckle Joint for CMK2/CMA2/CKV2/JSK2/JSM2/HCA Brackets

CKD

Double notched knuckle for cylinder CMK2, CMA2, CKV2, JSK2, JSM2, HCA. Pin and washer split pin are attached.

Mounting Method	Thread Size M(mm)	Type	Thread Pitch(mm)	Material	Accessories Included
-	M8	Double Notched Knuckle Joints	1	Steel	Included

From: ₹ 1,607.24
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	CKD	CKD	MISUMI	CKD	MISUMI	MISUMI	CKD	CKD	CKD	CKD
Product Series	Knuckle Joints − Fixed	Knuckle Joints - Threaded, Configurable	Double Notched Knuckle Joint for SCM	SSD Double Clevis Knuckle Joint	Knuckle Joints - Tapped, Configurable	Double Notched Knuckle Metal Joint for SCA2/JSC3/USC/HCA	Knuckle Joints - Tool Less	Knuckle Joints - B Selectable	Joint, Brackets for CMK2/CMA2/CKV2 /JSK2/JSM2/SSD/HCA	Fittings for CMK2/CMA2/CKV2/JSK2/JSM2, Double Knuckle Joint	Brackets for SCG, JSG Double Notched Knuckle Joint	Double knuckle Joint for CMK2/CMA2/CKV2/JSK2/JSM2/HCA Brackets
CAD	2D / 3D	2D / 3D		2D / 3D	2D / 3D		2D / 3D	2D / 3D
From	₹ 549.00		₹ 1,305.91	₹ 848.36		₹ 2,337.02	₹ 1,378.90		₹ 1,653.71	₹ 1,650.85	₹ 2,647.44	₹ 1,607.24
Days to Ship	6 Day(s) or more	10 Day(s) or more	5 Day(s) or more	5 Day(s) or more	8 Day(s) or more	5 Day(s) or more	8 Day(s) or more	8 Day(s) or more	5 Day(s) or more	5 Day(s) or more	13 Day(s) or more	5 Day(s) or more
Mounting Method	-	Threaded	Tapped	-	Tapped	-	-	Tapped	-	-	-	-
Thread Size M(mm)	M3 ～ M18	M3 ～ M20	M8 ～ M26	M5 ～ M22	M3 ～ M26	M14 ～ M26	M4 ～ M10	M3 ～ M18	M10	M12	M14	M8
Type	Double Notched Knuckle Joints	Double Notched Knuckle Joints	Double Notched Knuckle Joints	Double Notched Knuckle Joints	Double Notched Knuckle Joints	Double Notched Knuckle Joints	Double Notched Knuckle Joints	Double Notched Knuckle Joints	Double Notched Knuckle Joints	Double Notched Knuckle Joints	Double Notched Knuckle Joints	Double Notched Knuckle Joints
Thread Pitch(mm)	0.5 ～ 1.5	0.5 ～ 2.5	1.25 ～ 1.5	0.8 ～ 1.5	0.5 ～ 1.5	1.5	-	0.5 ～ 1.5	1.25	1.5	1.5	1
Material	Steel / Stainless Steel / Cast Iron	Steel / Stainless Steel	Steel / Cast Iron	-	Steel / Stainless Steel	Cast Iron	Steel / Stainless Steel	Steel / Stainless Steel	Steel	Steel	Cast Iron	Steel
Accessories Included	Included	Not Included	Included	Included / Not Included	Not Included	Included	Not Included	Not Included	Not Included	Included	Included	Included

Configure

Specification/Dimensions

Mounting Method
- Tapped
- Threaded
Larger Image

Clear

Thread Size M(mm)
M3

M4

M5

M6

M8

M10

M12

M14

M16

M18

M20

M22

M26
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.