Product Description

Flexible Oldham Coupling Set Screw/Clamp Type Shaft Coupling for Servo Motor

Description of Flexible Oldham Coupling Set Screw/Clamp Type Shaft Coupling for Servo Motor

1.Zero rotation gap
2. High torque rigidity
3. Allow a large amount of deviation adjustment
4. Vibration absorption
5. Good electrical insulation
6. Simple structure and easy installation
 

Parameter of Flexible Oldham Coupling Set Screw/Clamp Type Shaft Coupling for Servo Motor

Dimension

Item	Bore Size				D	L	L1/L2	F	G	M	Torque N.m
	d1		d2
	Min	Max	Min	Max
JH16	3	6.35	3	6.35	16	18	7	3.5	M3	–	0.7
JH16C	4	6	4	6		29	12.5	3.5	–	M2.5	1.5
JH20	4	8	4	8	20	23	9	4.5	M4	–	1.7
JH20C	4	8	4	8		33	14	3.5	–	M3	1.5
JH25	5	12	5	12	25	28	11	5.5	M5	–	4
JH25C	5	12	5	12		39	16.5	3.5	–	M3	1.5
JH32	5	16	5	16	32	33	13	6.5	M6	–	7
JH32C	5	16	5	16		45	19	4.5	–	M4	2.5
JH40	8	20	8	20	40	35	14	7	M6	–	7
JH40C	8	20	8	20		50	23	7	–	M5	4
JH50	12	24	12	24	50	38	17	8.5	M8	–	15
JH50C	12	24	12	24		58	27	8	–	M6	8
JH63	14	30	14	30	63	47	21	10.5	M10	–	8
JH63C	14	30	14	30		71	33	10	–	M8	16

 Specification

Item	Rated Torque (Nm)	Max. Torque (Nm)	Allowable Speed (min-1)	Torsional Stiffness N.m/rad	Moment of Inertia 10-6kgm2	Iateral (mm)	Angular (.)	Net weight (g)
JH16	0.7	1.4	12000	31	0.32	1	3	7
JH16C					0.58			12
JH20	1.2	2.4	10000	60	1	1.5	3	14
JH20C					1.5			19
JH25	2	4	8000	140	3	2	3	27
JH25C					4.4			36
JH32	4.5	9	7000	280	9.5	2.5	3	50
JH32C					14			69
JH40	9	18	4800	540	23	3	3	80
JH40C					41			130
JH50	18	36	3000	820	67	3.5	3	150
JH50C					120			230
JH63	36	72	2800	1900	220	4	3	300
JH63C					370			450

Order Example

Item	D	C	d1	d2
JH	16	Clamp Type	3	3

                 

 

Specific Safety Considerations for Using Oldham Couplings in High-Speed Applications

When using Oldham couplings in high-speed applications, there are several safety considerations to keep in mind to ensure the safe and efficient operation of the machinery:

1. Material Selection: Choose high-quality materials for the Oldham coupling components to withstand the stresses and forces experienced at high speeds.

2. Proper Installation: Ensure the coupling is installed correctly and securely to prevent any chances of coupling failure or disengagement during high-speed operation.

3. Balancing: Balance the coupling components accurately to minimize vibration and prevent excessive wear, which can be more pronounced at high speeds.

4. Regular Inspections: Implement a regular inspection and maintenance schedule to identify any signs of wear, misalignment, or damage that may occur due to high-speed operation.

5. Lubrication: Use appropriate lubrication to reduce friction and heat generation, which is crucial in high-speed applications.

6. Temperature Consideration: Monitor the temperature of the coupling during operation as high speeds can result in increased heat generation.

7. Avoid Overloading: Do not exceed the recommended torque and speed limits specified by the manufacturer to avoid overloading the coupling.

8. Coupling Guards: Consider using coupling guards or covers to protect personnel from rotating or moving coupling components in high-speed systems.

9. Emergency Shutdown: Install an emergency shutdown system to quickly stop the machinery in case of coupling failure or other emergencies.

10. Compliance with Standards: Ensure that the Oldham coupling and its installation comply with industry standards and regulations for high-speed applications.

By adhering to these safety considerations and implementing preventive measures, the risk of accidents, machinery damage, and downtime in high-speed applications can be significantly reduced. Always consult the coupling manufacturer’s guidelines and follow best practices for safe operation and maintenance.

How to Calculate the Required Size and Specifications for an Oldham Coupling

Calculating the required size and specifications for an Oldham coupling involves considering several key factors. Here’s a step-by-step guide to help you with the calculations:

1. Identify the Torque Requirements: Determine the maximum torque that the coupling needs to transmit between the two shafts. This can be done by analyzing the torque demands of the application and considering safety factors.
2. Select the Coupling Material: Based on the operating conditions and the type of machinery, choose a suitable material for the Oldham coupling. Common materials include aluminum, stainless steel, and acetal.
3. Calculate the Bore Diameter: Measure the diameters of the shafts that the coupling will connect. The bore diameter of the coupling should match the shaft diameters for a proper fit.
4. Determine the Coupling Size: The coupling’s size is typically specified by its outside diameter and length. Ensure that the selected coupling size fits within the available space in the mechanical system.
5. Consider Misalignment Compensation: Oldham couplings can accommodate angular misalignment. However, it’s essential to check the coupling’s rated misalignment capability to ensure it meets the application’s requirements.
6. Check Operating Speed: Verify that the selected coupling can handle the rotational speed (RPM) of the application without exceeding its critical speed.
7. Factor in Environmental Conditions: If the coupling will be exposed to harsh environmental conditions or corrosive substances, choose a material that can withstand these conditions.

Once you have gathered all the necessary information and made the calculations, you can select the appropriate Oldham coupling that meets the requirements of your specific application. It’s important to consult with coupling manufacturers or engineering experts to ensure the coupling’s compatibility and reliability in your system.

Advantages of Using an Oldham Coupling Compared to Other Types of Couplings

An Oldham coupling offers several advantages over other types of couplings, making it a preferred choice in certain applications:

• Misalignment Compensation: The Oldham coupling can handle both angular and axial misalignments between shafts. It allows for up to a few degrees of misalignment while transmitting torque smoothly, reducing the risk of premature wear and failure caused by misalignment.
• No Backlash: Unlike some other flexible couplings, the Oldham coupling has minimal backlash. This means there is little to no play or clearance between the coupling components during rotation, ensuring precise torque transmission and positioning in high-precision applications.
• Vibration and Noise Damping: The sliding action of the middle block in the coupling helps to isolate the shafts from each other, reducing vibrations and noise during operation. This feature is beneficial in applications where vibration dampening is critical to equipment performance and longevity.
• High Torque Transmission: Oldham couplings can handle relatively high torque transmission, making them suitable for applications with moderate to high torque requirements.
• Low Maintenance: Due to its design, the Oldham coupling experiences minimal wear during operation, leading to lower maintenance requirements and longer service life.
• Easy Installation: Oldham couplings are relatively easy to install and remove, simplifying maintenance and replacement procedures.
• Electrically Insulating: Some Oldham couplings are available with non-conductive materials, providing electrical isolation between shafts, which is essential in certain applications.
• Cost-Effective: Compared to other high-performance couplings, Oldham couplings are often more cost-effective, providing reliable performance without breaking the budget.

Overall, the Oldham coupling is an excellent choice in applications where misalignment compensation, precision torque transmission, vibration dampening, and low maintenance are critical factors for successful operation. Its unique design and features make it suitable for various industrial and automation systems, contributing to smoother and more efficient mechanical power transmission.

editor by CX 2023-10-23