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When selecting flexible coil spring couplings, understanding their specific applications is crucial. These components are designed to absorb shock, dampen vibration, and accommodate misalignment, making them vital for reliable mechanical system operation. Choosing the correct coupling ensures longevity and performance for your equipment.
[Package] Includes two coupling halves and an NBR rubber insert. 1/2" bore with 1/8" keyway and set screw on one coupling half. 3/4" bore with 3/16" keyway and set screw on the matching coupling half.
[Superior materials] This product is made of high-strength HT250 steel and rubber to make the product use. The service life is greatly improved, and the effective connection guarantees the power.
[Design] The curved jaw hubs are press fit into NBR rubber insert to allow couplings to operate with zero backlash. Help to reduce deformation and limits the effect of forces during high speed operations. Back pull out design means shorter maintenance...
[Application range]Widely be used in pumps, gear boxes, compressors, mixing equipment, conveyor systems, mowing equipment etc.. Interchangeable for Lovejoy, for Martin, and other L-jaw couplers.
[100% Satisfaction Guarantee] Your satisfaction is our priority. We strive to give our customers excellent service. All Ezbzyz products support 30-Day money-back guarantee, 12-Month warranty for quality-related issues. Simply return it for your warranty.
Material: Aluminum alloy; Connection Diameter: 6mm to 7mm; Total Length: 25mm /0.98 inch; Outside Diameter : 19mm/ 0.75 inch
Zero backlash. One-piece metallic spring coupling. For little torque shaft connect.
Absorption of parallel, angular misalignments and shaft end-play by spring action.
Widely used in drive systems for encoders, instrumentation,lead screws, small pumps, feed rollers and anywhere light to medium duty, torsionally flexible coupling is required.
【Dimension】 - Shaft usage:12.7mm to 12.7mm/0.5" to 0.5";Total size:66x40mm/2.6"x1.57"(L*D);Maximum speed (rpm):13000;Thread size:M6;Maximum torque/N.m:64;Rated torque/N.m:32
【Material】 -The coupling is made of aluminum alloy, the surface is oxidized, and the type isthread holding tight
【Features】- Connector is wear-resistant, high hardness, good responsiveness, super elastic torque can absorb vibration, suitable for large torque transmission
【Function】 -The Flexible Coupler Joint transmits torque while suppressing system vibration and adapting to misalignment to protect other components from damage
【Application】 -The shaft couplers are mainly used for CNC machines,servo motors, spindle, step motor etc
Material: Aluminum alloy; Connection Diameter: 7mm to 10mm; Total Length: 25mm /0.98 inch; Outside Diameter : 19mm/ 0.75 inch
Zero backlash. One-piece metallic spring coupling. For little torque shaft connect.
Absorption of parallel, angular misalignments and shaft end-play by spring action.
Widely used in drive systems for encoders, instrumentation,lead screws, small pumps, feed rollers and anywhere light to medium duty, torsionally flexible coupling is required.
Last update on 2026-07-16 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Flexible Coil Spring Couplings
Material Selection
Aluminum: Lightweight and corrosion-resistant, suitable for general-purpose applications where high torque is not a primary concern.
Stainless Steel: Offers superior strength, corrosion resistance, and durability, making it ideal for demanding environments or applications requiring high precision.
Torque and Speed Ratings
Consider the maximum torque the coupling will need to transmit. Exceeding this limit can lead to failure.
Ensure the coupling's speed rating is appropriate for your application to prevent excessive wear or operational issues.
Shaft Size and Alignment Accommodation
Measure the diameters of the shafts you need to connect accurately. Couplings come in various bore sizes.
Note the degree of misalignment (angular, parallel, axial) your system experiences. Coil spring couplings are effective at absorbing moderate misalignment.
Frequently Asked Questions
What is a flexible coil spring coupling?
A flexible coil spring coupling is a mechanical device that connects two rotating shafts. It uses a coiled spring to absorb shock, dampen vibration, and accommodate shaft misalignment.
What are the main benefits of using a coil spring coupling?
These couplings offer excellent vibration damping and shock absorption capabilities. They can also compensate for angular, parallel, and axial misalignment between shafts, reducing stress on connected components.
How do I determine the correct size coupling?
You need to measure the diameter of both shafts you intend to connect. Ensure the bore sizes of the coupling match these shaft diameters precisely for a secure fit.
Are coil spring couplings suitable for high-speed applications?
Coil spring couplings can be used in moderate to high-speed applications, but it's essential to check the manufacturer's specified speed rating. Exceeding this limit can lead to premature wear or failure.
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