Product Description

GHC Oldham type coupling cross sliding clamp coupling

Description of GHC Oldham type coupling cross sliding clamp coupling
>The colloid material is imported PA66, which has good wear resistance, corrosion resistance and electrical insulation
>Sliding design can compensate radial and angular deviation more effectively
>Detachable design, easy to install
>Fastening method of clamping screw

Dimensions of GHC Oldham type coupling cross sliding clamp coupling

model parameter	common bore diameter d1,d2	ΦD	L	LF	LP	F	M	tightening screw torque (N.M)
GHC-16X21	4,5,6,6.35	16	21	8.6	11.6	2.5	M2.5	1
GHC-16X30	4,5,6,6.35	16	30	13.1	11.6	3	M2.5	1
GHC-20X22	5,6,6.35,7,8	20	22	8.6	12.7	2.5	M2.5	1
GHC-20×33	5,6,6.35,7,8	20	33	14.1	12.7	3	M2.5	1
GHC-25×28	5,6,6.35,8,9,9.525,10,11,12	25	28	11.7	16.65	3	M3	1.5
GHC-25X39	5,6,6.35,8,9,9.525,10,11,12	25	39	17.2	16.65	4.2	M3	1.5
GHC-32X33	5,6,8,9,9.525,10,11,12.12.7,14,15,16	32	33	14	19.5	3	M4	2.5
GHC-32X45	5,6,8,9,9.525,10,11,12,12.7,14,15,16	32	45	20	19.5	4.5	M4	2.5
GHC-40X50	8,9,9.525,10,11,12,14,15,16,17,18,19	40	50	23	18.4	7	M5	7
GHC-45X46	8,9,9.525,10,11,12,14,15,16,17,18,19,20,22	45	46	21	18.4	7	M5	7
GHC-50X53	10,11,12.7,14,15,16,17,18,19,20,22,24	50	53	24	15	7.5	M6	12
GHC-50X58	10,11,12.7,14,15,16,17,18,19,20,22,24	50	58	26.5	17.5	8	M6	12
GHC-55X57	10,11,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32	55	57	26	17.5	7.8	M6	12
GHC-63X71	14,15,16,17,18,19,20,22,24,25,28,30,32	63	71	33	24	10	M8	20
GHC-70X77	14,15,16,17,18,19,20,22,24,25,28,30,32,35,38	70	77	29.5	25	12	M8	20

  

model parameter	Rated torque (N.M)*	allowable eccentricity (mm)*	allowable deflection angle (°)*	allowable axial deviation (mm)*	maximum speed rpm	static torsional stiffness (N.M/rad)	moment of inertia (Kg.M2)	Material of shaft sleeve	Material of shrapnel	surface treatment	weight (g)
GHC-16X21	0.7	0.8	3	±0.2	8500	30	5.5×10-7	High strength aluminum alloy	P A 6 6	Anodizing treatment	8
GHC-16X30	0.7	0.8	3	±0.2	9000	30	5.9×10-7				12
GHC-20X22	1.2	1.2	3	±0.2	6500	58	1.3×10-6				13
GHC-20×33	1.2	1.2	3	±0.2	7000	58	1.5×10-6				19
GHC-25X28	2	1.6	3	±0.2	5500	130	4.0×10-6				24
GHC-25X39	22	1.6	3	±0.2	6000	130	4.5×10-6				35
GHC-32X33	4.5	2	3	±0.2	4500	270	1.3×10-5				48
GHC-32X45	4.5	2	3	±0.2	4800	270	1.5×10-5				67
GHC-40X50	9	2.4	3	±0.2	3600	520	4.2×10-5				114
GHC-45X46	12	2.5	3	±0.2	3500	800	4.5×10-5				140
GHC-50X53	19	2.6	3	±0.2	3000	800	1.0×10-4				190
GHC-50X58	19	3	3	±0.2	3000	800	1.1×10-4				215
GHC-55X57	25	3.2	3	±0.2	3000	900	1.3×10-5				260
GHC-63X71	33	3	3	±0.2	2550	1200	3.5×10-4				455
GHC-70X77	56	3.5	3	±0.2	2500	1260	4.1×10-5				520

 

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Different Sizes and Configurations of Oldham Couplings

Yes, Oldham couplings are available in various sizes and configurations to suit different applications and requirements. The sizes and configurations can vary based on factors such as torque capacity, shaft diameter, and overall dimensions. Some common variations include:

1. Shaft Diameters: Oldham couplings come in a range of shaft diameter options to accommodate different motor and shaft sizes. They can be found in standard metric and imperial sizes, making them compatible with various equipment and machinery.

2. Torque Capacity: Oldham couplings are designed to handle different torque capacities. The torque capacity of a coupling depends on its size, materials used, and overall construction. High-performance couplings can transmit higher torques, while smaller couplings may be suitable for lighter applications.

3. Coupling Length: The length of the coupling can vary, and some designs allow for compact installations in confined spaces, while others may have longer lengths for specific applications.

4. Materials: Oldham couplings are manufactured using various materials such as aluminum, stainless steel, and composite materials. The choice of material depends on factors like the operating environment, chemical resistance, and desired performance characteristics.

5. Spacer Type: Oldham couplings may have different spacer designs, including straight-spacer and step-spacer configurations. The choice of spacer type can affect the overall stiffness and misalignment capabilities of the coupling.

6. Hub Style: Oldham couplings come with different hub styles, such as set screw, clamp, or compression-style hubs, to accommodate various shaft attachment methods and ease of installation.

7. Backlash: Couplings may have different backlash characteristics, allowing for minimal angular play between the hubs to reduce vibration and shock loads.

Manufacturers of Oldham couplings typically provide detailed specifications and product catalogs that outline the available sizes and configurations. It’s essential to select the right coupling size and configuration that matches the requirements of the specific application to ensure optimal performance and longevity.

Real-World Examples of Oldham Coupling Usage in Mechanical Engineering

Oldham couplings are widely used in various mechanical engineering applications due to their ability to transmit torque while compensating for angular misalignment. Here are some real-world examples of Oldham coupling usage:

• Packaging Machinery: Oldham couplings are commonly employed in packaging machines that require precise and continuous motion. These couplings help connect the motor shaft to various components in the packaging process, such as conveyor belts, rollers, and cutting blades.
• Automated Assembly Lines: In automated assembly lines, Oldham couplings are utilized to transfer torque from the motor to the robotic arms or handling mechanisms. The couplings enable smooth and accurate movement, ensuring precise positioning of components during assembly.
• Printing Equipment: Printing machines utilize Oldham couplings to transmit power from the motors to the printing cylinders and rollers. The couplings accommodate any misalignment between the shafts and minimize vibration, resulting in improved print quality.
• Material Handling Systems: Material handling systems, such as conveyor systems, use Oldham couplings to connect drive motors to the conveyor belts. These couplings facilitate the efficient transfer of goods while compensating for any misalignment that may occur during operation.
• Industrial Pumps: Oldham couplings are employed in industrial pumps to transfer power from the motor to the pump impeller. They aid in absorbing vibration and maintaining alignment, which is crucial for the pump’s optimal performance and longevity.
• Medical Devices: Some medical devices, such as scanning equipment and diagnostic machines, incorporate Oldham couplings to ensure precise and reliable motion, contributing to accurate medical imaging and diagnosis.

These examples demonstrate the versatility of Oldham couplings in various mechanical engineering applications. Their ability to handle misalignment, reduce vibration, and transmit torque makes them a valuable component in many industrial sectors.

How an Oldham Coupling Accommodates Misalignment Between Shafts

An Oldham coupling accommodates misalignment between shafts through its unique design, which consists of three main components:

1. Two Hubs: Each hub is attached to the shaft of the connected equipment. The hubs have a series of slots around their circumference.
2. Middle Block: The middle block fits between the two hubs and has perpendicular slots on its inner diameter. It connects the two hubs while allowing relative movement between them.

When the shafts experience angular or axial misalignment, the middle block slides within the slots of both hubs. The perpendicular slots on the middle block engage with the slots on the hubs, creating a parallelogram linkage.

This parallelogram linkage allows the Oldham coupling to compensate for angular misalignment by enabling the hubs to rotate independently about their own axes. The sliding action of the middle block accommodates axial misalignment by allowing the hubs to move slightly closer or farther apart.

The use of sliding contact instead of direct physical contact between the hubs minimizes friction, backlash, and wear, making the Oldham coupling an efficient and reliable method for transmitting torque while accommodating misalignment.

Overall, the Oldham coupling’s ability to handle both angular and axial misalignment ensures smooth and precise torque transmission between shafts, reducing stress on connected equipment and extending the lifespan of mechanical components.

editor by CX 2024-05-15