{"id":4146,"date":"2026-05-26T08:08:41","date_gmt":"2026-05-26T08:08:41","guid":{"rendered":"https:\/\/cardancoupling.top\/?post_type=product&p=4146"},"modified":"2026-05-27T05:33:29","modified_gmt":"2026-05-27T05:33:29","slug":"jaw-flexible-coupling","status":"publish","type":"product","link":"https:\/\/cardancoupling.top\/ms\/product\/jaw-flexible-coupling\/","title":{"rendered":"Jaw Flexible Coupling"},"content":{"rendered":"
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Ever Power \u00b7 Precision Coupling Solutions<\/div>\n

Jaw Flexible Coupling
\nHigh-Torque \u00b7 Misalignment Compensation \u00b7 UK B2B Supply<\/span><\/h2>\n

Engineered for demanding industrial environments across the United Kingdom, the jaw flexible coupling from Ever Power delivers reliable torque transmission, robust shock absorption, and seamless misalignment compensation \u2014 built to keep your operation running without interruption.<\/p>\n

\ud83d\udce7 Get a Quote Now<\/a><\/p>\n<\/div>\n<\/div>\n

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\ud83d\udd11 Trusted by UK engineers & procurement teams \u2014 request your specification & price today<\/span>
\nRequest a Quote<\/a><\/div>\n

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What Is a Jaw Flexible Coupling?<\/h2>\n

Overview & Function<\/span><\/p>\n<\/div>\n

\"JawA jaw flexible coupling is a precision mechanical device that connects two rotating shafts, allowing efficient torque transfer while tolerating angular, parallel, and axial misalignment. At the heart of the design is a polyurethane or rubber spider element seated between two interlocking jaw hubs \u2014 it is this elastomeric insert that absorbs impact loads, dampens vibration, and protects downstream equipment from shock damage. Whether you are specifying components for a new conveyor installation in the West Midlands, upgrading a pump skid at a chemical plant on Teesside, or sourcing replacements for robotic workcells in the Thames Valley, the jaw coupling delivers consistent, maintenance-friendly performance without demanding specialist tooling or extended service windows.<\/p>\n

Ever Power supplies jaw flexible couplings to UK buyers in sizes from JM1-14 through JM2-135, covering bore diameters from 3 mm up to 80 mm and rated torque values from 0.5 N\u00b7m to 1,880 N\u00b7m. All units are machined to tight dimensional tolerances and are available in standard or fully customised configurations to match your shaft sizes, keyway requirements, and operating conditions. Compact, cost-effective, and straightforward to fit in the field \u2014 this is the coupling that belongs on your approved-parts list.<\/p>\n<\/div>\n

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Technical Specifications & Dimension Table<\/h2>\n

Full Size Range \u00b7 JM Series<\/span><\/p>\n<\/div>\n

\"Jaw<\/div>\n
\n\n\n\n\n<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Model
\nNumber<\/th>\n		Bore dia. (mm)<\/th>\nD<\/th>\nL<\/th>\nL1<\/th>\nL2<\/th>\nF<\/th>\nE<\/th>\nG<\/th>\nM<\/th>\nN.M<\/th>\nTorque (N\u00b7m)<\/th>\nTorsional
\nStiffness
\n(N\u00b7m\/rad)<\/th>\n		Dynamic
\nStiffness
\n(N\u00b7m\/rad)<\/th>\n		Moment of
\nInertia
\n(kg\u00b7m\u00b2)<\/th>\n		Net
\nWeight
\n(g)<\/th>\n<\/tr>\n
d1 min<\/th>\nd2 max<\/th>\nTKN<\/th>\nTK max<\/th>\n<\/tr>\n<\/thead>\n
JM1-14<\/td>\n3<\/td>\n7<\/td>\n14<\/td>\n22.0<\/td>\n7.0<\/td>\n7.0<\/td>\n3.5<\/td>\n8.0<\/td>\nM3<\/td>\n\u2014<\/td>\n0.7<\/td>\n2.0<\/td>\n4.0<\/td>\n22.9<\/td>\n69.0<\/td>\n0.085\u00d710\u207b\u2076<\/td>\n6.7<\/td>\n<\/tr>\n
JM2-14<\/td>\n3<\/td>\n6<\/td>\n14<\/td>\n22.0<\/td>\n7.0<\/td>\n7.0<\/td>\n3.5<\/td>\n8.0<\/td>\n\u2014<\/td>\nM2.5<\/td>\n0.5<\/td>\n2.0<\/td>\n4.0<\/td>\n22.9<\/td>\n69.0<\/td>\n0.085\u00d710\u207b\u2076<\/td>\n6.7<\/td>\n<\/tr>\n

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JM1-16<\/td>\n3<\/td>\n7<\/td>\n16<\/td>\n22.0<\/td>\n7.0<\/td>\n7.0<\/td>\n3.5<\/td>\n8.0<\/td>\nM3<\/td>\n\u2014<\/td>\n0.7<\/td>\n2.2<\/td>\n4.4<\/td>\n23.4<\/td>\n72.0<\/td>\n0.09\u00d710\u207b\u2076<\/td>\n9.0<\/td>\n<\/tr>\n
JM2-16<\/td>\n3<\/td>\n7<\/td>\n16<\/td>\n22.0<\/td>\n7.0<\/td>\n7.0<\/td>\n3.5<\/td>\n8.0<\/td>\n\u2014<\/td>\nM2.5<\/td>\n0.5<\/td>\n2.2<\/td>\n4.4<\/td>\n23.4<\/td>\n72.0<\/td>\n0.09\u00d710\u207b\u2076<\/td>\n9.0<\/td>\n<\/tr>\n

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JM1-20<\/td>\n4<\/td>\n10<\/td>\n20<\/td>\n30.0<\/td>\n10.0<\/td>\n10.0<\/td>\n5.0<\/td>\n10.0<\/td>\nM3<\/td>\n\u2014<\/td>\n0.7<\/td>\n5.0<\/td>\n10.0<\/td>\n51.6<\/td>\n155.0<\/td>\n0.49\u00d710\u207b\u2076<\/td>\n19.8<\/td>\n<\/tr>\n
JM2-20<\/td>\n4<\/td>\n10<\/td>\n20<\/td>\n30.0<\/td>\n10.0<\/td>\n10.0<\/td>\n5.0<\/td>\n10.0<\/td>\n\u2014<\/td>\nM3<\/td>\n1.5<\/td>\n5.0<\/td>\n10.0<\/td>\n51.6<\/td>\n155.0<\/td>\n0.49\u00d710\u207b\u2076<\/td>\n19.8<\/td>\n<\/tr>\n

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JM1-25<\/td>\n4<\/td>\n12<\/td>\n25<\/td>\n34.0<\/td>\n11.0<\/td>\n11.0<\/td>\n5.0<\/td>\n12.0<\/td>\nM4<\/td>\n\u2014<\/td>\n1.7<\/td>\n9.0<\/td>\n18.0<\/td>\n240.7<\/td>\n718.0<\/td>\n1.3\u00d710\u207b\u2076<\/td>\n37.0<\/td>\n<\/tr>\n
JM2-25<\/td>\n4<\/td>\n12<\/td>\n25<\/td>\n34.0<\/td>\n11.0<\/td>\n11.0<\/td>\n5.0<\/td>\n12.0<\/td>\n\u2014<\/td>\nM4<\/td>\n1.5<\/td>\n9.0<\/td>\n18.0<\/td>\n240.7<\/td>\n718.0<\/td>\n1.3\u00d710\u207b\u2076<\/td>\n37.0<\/td>\n<\/tr>\n

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JM1-30<\/td>\n5<\/td>\n16<\/td>\n30<\/td>\n35.0<\/td>\n11.0<\/td>\n11.0<\/td>\n5.0<\/td>\n13.0<\/td>\nM4<\/td>\n\u2014<\/td>\n1.7<\/td>\n12.5<\/td>\n25.0<\/td>\n171.9<\/td>\n513.0<\/td>\n2.8\u00d710\u207b\u2076<\/td>\n50.0<\/td>\n<\/tr>\n
JM2-30<\/td>\n5<\/td>\n16<\/td>\n30<\/td>\n35.0<\/td>\n11.0<\/td>\n11.0<\/td>\n5.0<\/td>\n13.0<\/td>\n\u2014<\/td>\nM4<\/td>\n1.7<\/td>\n12.5<\/td>\n25.0<\/td>\n171.9<\/td>\n513.0<\/td>\n2.8\u00d710\u207b\u2076<\/td>\n50.0<\/td>\n<\/tr>\n

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JM1-40<\/td>\n8<\/td>\n24<\/td>\n40<\/td>\n66.0<\/td>\n25.0<\/td>\n25.0<\/td>\n10.0<\/td>\n16.0<\/td>\nM5<\/td>\n\u2014<\/td>\n4.0<\/td>\n17.0<\/td>\n34.0<\/td>\n1512<\/td>\n2540<\/td>\n20.4\u00d710\u207b\u2076<\/td>\n156.0<\/td>\n<\/tr>\n
JM2-40<\/td>\n8<\/td>\n24<\/td>\n40<\/td>\n66.0<\/td>\n25.0<\/td>\n25.0<\/td>\n12.0<\/td>\n16.0<\/td>\n\u2014<\/td>\nM5<\/td>\n8.0<\/td>\n17.0<\/td>\n34.0<\/td>\n1512<\/td>\n2540<\/td>\n20.4\u00d710\u207b\u2076<\/td>\n156.0<\/td>\n<\/tr>\n

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JM1-55<\/td>\n10<\/td>\n28<\/td>\n55<\/td>\n78.0<\/td>\n30.0<\/td>\n30.0<\/td>\n10.0<\/td>\n18.0<\/td>\nM6<\/td>\n\u2014<\/td>\n7.0<\/td>\n60.0<\/td>\n120.0<\/td>\n3640<\/td>\n5980<\/td>\n50.8\u00d710\u207b\u2076<\/td>\n362.0<\/td>\n<\/tr>\n
JM2-55<\/td>\n10<\/td>\n28<\/td>\n55<\/td>\n78.0<\/td>\n30.0<\/td>\n30.0<\/td>\n10.5<\/td>\n18.0<\/td>\n\u2014<\/td>\nM6<\/td>\n8.0<\/td>\n60.0<\/td>\n120.0<\/td>\n3640<\/td>\n5980<\/td>\n50.8\u00d710\u207b\u2076<\/td>\n362.0<\/td>\n<\/tr>\n

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JM1-65<\/td>\n12<\/td>\n38<\/td>\n65<\/td>\n90.0<\/td>\n35.0<\/td>\n35.0<\/td>\n15.0<\/td>\n20.0<\/td>\nM8<\/td>\n\u2014<\/td>\n15.0<\/td>\n160.0<\/td>\n320.0<\/td>\n6410<\/td>\n9920<\/td>\n200.3\u00d710\u207b\u2076<\/td>\n583.0<\/td>\n<\/tr>\n
JM2-65<\/td>\n12<\/td>\n38<\/td>\n65<\/td>\n90.0<\/td>\n35.0<\/td>\n35.0<\/td>\n11.5<\/td>\n20.0<\/td>\n\u2014<\/td>\nM8<\/td>\n16.0<\/td>\n160.0<\/td>\n320.0<\/td>\n6410<\/td>\n9920<\/td>\n200.3\u00d710\u207b\u2076<\/td>\n583.0<\/td>\n<\/tr>\n

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JM1-80<\/td>\n16<\/td>\n45<\/td>\n80<\/td>\n114.0<\/td>\n45.0<\/td>\n45.0<\/td>\n15.0<\/td>\n24.0<\/td>\nM8<\/td>\n\u2014<\/td>\n15.0<\/td>\n325.0<\/td>\n650.0<\/td>\n11800<\/td>\n17160<\/td>\n400.6\u00d710\u207b\u2076<\/td>\n966.0<\/td>\n<\/tr>\n
JM2-80<\/td>\n16<\/td>\n45<\/td>\n80<\/td>\n114.0<\/td>\n45.0<\/td>\n45.0<\/td>\n15.5<\/td>\n24.0<\/td>\n\u2014<\/td>\nM8<\/td>\n16.0<\/td>\n325.0<\/td>\n650.0<\/td>\n11800<\/td>\n17160<\/td>\n400.6\u00d710\u207b\u2076<\/td>\n966.0<\/td>\n<\/tr>\n

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JM1-95<\/td>\n20<\/td>\n55<\/td>\n95<\/td>\n126.0<\/td>\n50.0<\/td>\n50.0<\/td>\n20.0<\/td>\n26.0<\/td>\nM8<\/td>\n\u2014<\/td>\n15.0<\/td>\n450.0<\/td>\n900.0<\/td>\n21594<\/td>\n37692<\/td>\n2246\u00d710\u207b\u2076<\/td>\n1820.0<\/td>\n<\/tr>\n
JM2-95<\/td>\n20<\/td>\n55<\/td>\n95<\/td>\n126.0<\/td>\n50.0<\/td>\n50.0<\/td>\n18.0<\/td>\n26.0<\/td>\n\u2014<\/td>\nM10<\/td>\n40<\/td>\n450.0<\/td>\n900.0<\/td>\n21594<\/td>\n37692<\/td>\n2246\u00d710\u207b\u2076<\/td>\n1820.0<\/td>\n<\/tr>\n

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JM1-105<\/td>\n20<\/td>\n62<\/td>\n105<\/td>\n140.0<\/td>\n56.0<\/td>\n56.0<\/td>\n20.0<\/td>\n28.0<\/td>\nM10<\/td>\n\u2014<\/td>\n32<\/td>\n525.0<\/td>\n1050.0<\/td>\n25759<\/td>\n45620<\/td>\n3786\u00d710\u207b\u2076<\/td>\n2430.0<\/td>\n<\/tr>\n
JM2-105<\/td>\n20<\/td>\n62<\/td>\n105<\/td>\n140.0<\/td>\n56.0<\/td>\n56.0<\/td>\n21.0<\/td>\n28.0<\/td>\n\u2014<\/td>\nM12<\/td>\n115<\/td>\n525.0<\/td>\n1050.0<\/td>\n25759<\/td>\n45620<\/td>\n3786\u00d710\u207b\u2076<\/td>\n2430.0<\/td>\n<\/tr>\n

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JM1-120<\/td>\n20<\/td>\n74<\/td>\n120<\/td>\n160.0<\/td>\n65.0<\/td>\n65.0<\/td>\n20.0<\/td>\n30.0<\/td>\nM10<\/td>\n\u2014<\/td>\n32<\/td>\n685.0<\/td>\n1370.0<\/td>\n42117<\/td>\n61550<\/td>\n7496\u00d710\u207b\u2076<\/td>\n4530<\/td>\n<\/tr>\n
JM2-120<\/td>\n20<\/td>\n74<\/td>\n120<\/td>\n160.0<\/td>\n65.0<\/td>\n65.0<\/td>\n26.0<\/td>\n30.0<\/td>\n\u2014<\/td>\nM12<\/td>\n115<\/td>\n685.0<\/td>\n1370.0<\/td>\n42117<\/td>\n61550<\/td>\n7496\u00d710\u207b\u2076<\/td>\n4530<\/td>\n<\/tr>\n

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JM1-135<\/td>\n22<\/td>\n80<\/td>\n135<\/td>\n185.0<\/td>\n75.0<\/td>\n75.0<\/td>\n20.0<\/td>\n35.0<\/td>\nM10<\/td>\n\u2014<\/td>\n32<\/td>\n940.0<\/td>\n1880.0<\/td>\n48520<\/td>\n71660<\/td>\n12000\u00d710\u207b\u2076<\/td>\n6980<\/td>\n<\/tr>\n
JM2-135<\/td>\n22<\/td>\n80<\/td>\n135<\/td>\n185.0<\/td>\n75.0<\/td>\n75.0<\/td>\n33.0<\/td>\n35.0<\/td>\n\u2014<\/td>\nM12<\/td>\n115<\/td>\n940.0<\/td>\n1880.0<\/td>\n48520<\/td>\n71660<\/td>\n12000\u00d710\u207b\u2076<\/td>\n6980<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

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Six Reasons UK Engineers Specify This Coupling<\/h2>\n

Product Advantages<\/span><\/p>\n<\/div>\n

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High Torque in a Compact Body<\/h3>\n

The jaw flexible coupling transmits peak torque values up to 1,880 N\u00b7m (JM2-135) within a surprisingly small envelope. This power density makes it the go-to coupling when installation space is tight but drive power cannot be compromised \u2014 a common challenge on UK production lines where equipment is often retrofitted into existing machine beds.<\/p>\n<\/div>\n

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\ud83d\udd04<\/div>\n

Three-Axis Misalignment Tolerance<\/h3>\n

Angular misalignment up to 1\u00b0, parallel offset up to 0.25 mm, and axial float are all accommodated by the elastomeric spider. This matters significantly in real-world industrial settings where thermal cycling, vibration, and structural deflection inevitably shift shaft centrelines over time. The jaw coupling absorbs these shifts silently rather than transmitting them as destructive forces to bearings and seals.<\/p>\n<\/div>\n

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\ud83d\udee0<\/div>\n

Tool-Free Spider Replacement<\/h3>\n

The spider element \u2014 the only wear part \u2014 can be swapped without disconnecting or moving the hubs. This is a considerable maintenance advantage in planned preventive maintenance programmes across British manufacturing facilities, reducing mean time to repair and eliminating the need to re-align the drive train every time the insert degrades. Downtime on an automated line is expensive; this design keeps it short.<\/p>\n<\/div>\n

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\ud83c\udfe5<\/div>\n

Chemically Resistant Materials<\/h3>\n

Hubs are machined from high-grade aluminium alloy or steel \u2014 customers can specify their preferred material at order stage. Polyurethane spider elements resist oils, mild acids, and common industrial cleaning agents, making these jaw flexible couplings well-suited to food processing, pharmaceutical, and chemical processing applications where wash-down and chemical exposure are routine parts of the operating environment.<\/p>\n<\/div>\n

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\ud83d\udcc8<\/div>\n

Electrically Isolating Option<\/h3>\n

A polyurethane spider provides a degree of electrical isolation between drive and driven components \u2014 useful in servo and stepper motor applications where stray earth currents can corrupt encoder feedback or damage motor bearings through electrolytic pitting. This makes the coupling a sensible standard choice in automated assembly cells and CNC machinery throughout the UK.<\/p>\n<\/div>\n

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\ud83d\udcb0<\/div>\n

Competitive Pricing for UK Procurement<\/h3>\n

Ever Power’s vertically integrated manufacturing means we can supply jaw flexible couplings at prices that undercut many European catalogue suppliers without any sacrifice in dimensional accuracy or material quality. We offer project pricing, framework agreements, and blanket order facilities to UK-based distributors and OEM engineering teams looking to consolidate their coupling supply chain under a single reliable source.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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How It Works, What It’s Made Of & Where It’s Used<\/h2>\n

Principle \u00b7 Materials \u00b7 Applications<\/span><\/p>\n<\/div>\n

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\u2699 Working Principle<\/h3>\n

Drive torque enters through one hub, passes through the interlocking jaw geometry into the elastomeric spider, and exits via the second hub to the driven shaft. The spider’s lobes compress elastically under load, cushioning torque spikes and preventing resonant vibration from propagating through the drivetrain. Torsional stiffness varies with spider hardness \u2014 standard polyurethane (98 Shore A) gives a firm, responsive feel; softer versions (92 Shore A) suit applications where vibration isolation takes priority over dynamic stiffness. The fail-safe jaw geometry means a degraded spider still transmits torque jaw-to-jaw, giving operators time to schedule a planned replacement rather than facing an emergency breakdown.<\/p>\n<\/div>\n

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\ud83d\udd29 Materials<\/h3>\n

Hub bodies are produced from EN-AW-6082 aluminium alloy as standard, offering an excellent strength-to-weight ratio for servo applications. Steel hubs (C45 or 42CrMo4) are available on request for high-torque or elevated-temperature applications. The spider element is standard polyurethane, with NBR rubber and Hytrel options available for specific chemical or temperature environments. All bores are precision-machined with H7 tolerance; keyways conform to DIN 6885, ensuring direct compatibility with standard European shafting \u2014 a practical advantage for UK engineers specifying to metric standards.<\/p>\n<\/div>\n

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\ud83c\udfed Application Scenarios<\/h3>\n

Jaw flexible couplings appear in an extraordinary range of plant and machinery. In robotic welding cells they connect servo motors to harmonic drive reducers. On packaging lines they link gearbox output shafts to conveyor drives. In pump houses across the water treatment sector \u2014 including facilities in Yorkshire, the South East, and Scotland \u2014 they bridge motor and pump flanges. CNC machine tool spindle drives, textile machinery, agricultural processing equipment, HVAC fan units, and marine auxiliary systems all routinely specify this coupling type. Wherever you need a compact, reliable, and cost-effective shaft-to-shaft connection in a British industrial environment, the jaw flexible coupling is almost always the right answer.<\/p>\n

\"Jaw<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Customer Success: How a Yorkshire Packaging OEM Cut Downtime by 40%<\/h2>\n

Case Study \u00b7 United Kingdom \u00b7 Packaging Machinery<\/span><\/p>\n<\/div>\n

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Background:<\/strong> A mid-sized OEM based in Leeds, West Yorkshire, manufactures automated case-erecting and cartoning machines for the food and beverage sector. Their machines originally used a competing rigid coupling design on the main drive shaft, which transmitted shock loads directly to the gearbox output bearing \u2014 resulting in three to four unplanned failures per machine per year across their installed base of roughly 80 systems in the UK.<\/p>\n

Challenge:<\/strong> Each bearing failure caused an average of six hours of production downtime for the end-user, plus the cost of an engineer call-out. The OEM was receiving escalating warranty claims and risking their preferred supplier status with a major supermarket group. They needed a coupling solution that would absorb shock, fit within the existing machine envelope without redesign, and be priced competitively enough to remain BOM-neutral.<\/p>\n

Solution:<\/strong> Working with Ever Power’s technical team, the OEM selected the JM1-40 jaw flexible coupling in aluminium with a standard polyurethane spider. The selection matched the existing bore size (22 mm, keyed), and the overall length fell within the original machine design envelope without modification. Trial units were fitted to ten machines in the field over a three-month period.<\/p>\n

Result:<\/strong> Bearing failure incidents dropped from approximately 3.5 per machine per year to under 2.0 \u2014 a reduction of more than 40% in unplanned downtime events. The OEM rolled the jaw coupling specification across their full production line and has been purchasing from Ever Power on a framework agreement since Q3 2023, with annual volumes exceeding 2,400 units. Spider replacement intervals have been factored into the machine’s six-month service schedule, eliminating surprise failures entirely.<\/p>\n

\"Ever<\/p>\n<\/div>\n

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\u2605\u2605\u2605\u2605\u2605<\/div>\n

“We switched to Ever Power jaw couplings on our conveyor drives twelve months ago. The lead time was short, the dimensions were spot-on, and we’ve had zero coupling-related failures since. For the price, the quality is genuinely impressive.”<\/p>\n

\u2014 Procurement Manager, Midlands-based Conveyor Systems Integrator<\/div>\n<\/div>\n
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\u2605\u2605\u2605\u2605\u2605<\/div>\n

“We needed a custom bore size and a specific keyway depth for a pump application in Scotland. Ever Power turned around a sample within two weeks, dimensional report included. Our maintenance team fitted them without any issues. Will be ordering more for the next site.”<\/p>\n

\u2014 Senior Mechanical Engineer, Water Treatment Contractor, Scotland<\/div>\n<\/div>\n
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\u2605\u2605\u2605\u2605\u2605<\/div>\n

“Price and quality are both strong. The spider elements are consistently the right durometer \u2014 not something you can always count on with lower-cost suppliers. We use these on our servo test rigs and they handle the cyclic loading well. Highly recommend for UK automation projects.”<\/p>\n

\u2014 R&D Engineer, Automation Equipment Manufacturer, South East England<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Our Factory & Custom Coupling Manufacturing<\/h2>\n

Precision Manufacturing \u00b7 Full Customisation Service<\/span><\/p>\n<\/div>\n

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\"Ever<\/div>\n<\/div>\n

Ever Power operates a modern manufacturing facility equipped with CNC turning centres, machining centres, and coordinate measuring machines, giving us full control over dimensional accuracy from raw material to finished coupling. Our team of applications engineers has more than 18 years of hands-on experience solving torque transmission challenges across a broad spectrum of industries \u2014 which means when you describe your application, we understand the constraints you’re working within, not just the catalogue numbers.<\/p>\n

Customisation is a core capability, not an afterthought. We routinely produce jaw flexible couplings<\/a> with non-standard bore diameters, metric and imperial keyways, flange-mount adaptors, extended hub lengths, stainless steel hubs for corrosive environments, and proprietary spider compounds matched to specific temperature or chemical profiles. Minimum order quantities for custom work are flexible \u2014 we work with UK engineering teams on prototype quantities through to volume production runs. Whether you need ten units for a machine redesign evaluation or 5,000 units per year for series production, the same quality and engineering support applies.<\/p>\n

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\ud83d\udd28<\/div>\n
Custom Bore & Keyway<\/div>\n<\/div>\n
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Material Selection<\/div>\n<\/div>\n
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Applications Engineering Support<\/div>\n<\/div>\n
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Flexible MOQ<\/div>\n<\/div>\n<\/div>\n
\ud83d\udce7 Discuss Custom Requirements<\/a><\/div>\n<\/div>\n

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Frequently Asked Questions<\/h2>\n

Jaw Flexible Coupling \u00b7 UK Buyer FAQs<\/span><\/p>\n<\/div>\n

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What is the best jaw flexible coupling size for a 22 kW conveyor motor drive in a UK food processing plant?<\/h3>\n<\/div>\n
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For a 22 kW motor operating at 1,450 rpm, the design torque is approximately 145 N\u00b7m. Applying a service factor of 1.5 for food processing shock loads gives a design torque of around 215 N\u00b7m \u2014 pointing toward the JM1-65 (rated 160 N\u00b7m TKN \/ 320 N\u00b7m TK max) as a conservative first choice. Confirm the shaft diameter and check the JM1-65 maximum bore (38 mm) against your motor and gearbox shaft sizes. Our engineering team can confirm the selection if you share your application data at sales@cardancoupling.top.<\/p>\n<\/div>\n<\/div>\n

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How much does a jaw flexible coupling typically cost when ordering from a supplier in the United Kingdom?<\/h3>\n<\/div>\n
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Pricing depends on size, material, and quantity. Small aluminium jaw couplings in the JM1-14 to JM1-30 range are typically very competitive per unit at volume, while larger sizes such as JM1-95 and above carry higher prices reflecting material and machining time. Ever Power provides transparent project pricing and framework agreements \u2014 contact us at sales@cardancoupling.top with your model, bore size, quantity, and delivery requirement for a same-day quote.<\/p>\n<\/div>\n<\/div>\n

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Which jaw flexible coupling spider material should I choose for a pump application in a Scottish water treatment facility?<\/h3>\n<\/div>\n
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Standard polyurethane (98 Shore A) handles the majority of pump applications and is compatible with water, mild detergents, and lubricating oils. If the pump handles chlorinated or caustic solutions, specify an NBR rubber spider for improved chemical resistance. For high-temperature environments above 80\u00b0C \u2014 less common in water treatment but found in some industrial effluent applications \u2014 a Hytrel spider is the preferred option. Tell us your operating temperature range and the chemicals present, and we will confirm the most suitable insert material.<\/p>\n<\/div>\n<\/div>\n

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Where can I get a custom jaw flexible coupling with a non-standard bore and imperial keyway for a legacy machine in England?<\/h3>\n<\/div>\n
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Ever Power specialises in precisely this type of requirement. We regularly machine jaw coupling hubs to imperial bore sizes with Woodruff or parallel imperial keyways for UK customers retrofitting legacy equipment. Send your drawing or a description of the shaft size, keyway dimensions, and torque requirement to sales@cardancoupling.top and we will respond with a lead time and price typically within 24 hours on working days.<\/p>\n<\/div>\n<\/div>\n

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How often should the spider element in a jaw flexible coupling be replaced on a high-cycle industrial packaging line?<\/h3>\n<\/div>\n
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On continuous three-shift packaging operations, spider inspection is recommended at six-month intervals. Visual inspection for radial cracking, chunking, or permanent set will indicate remaining service life. Under normal loading (operating at or below TKN), polyurethane spiders routinely achieve 18\u201324 months of service life. Replacing the spider before visible fatigue cracking propagates is best practice \u2014 the cost of a spider element is trivial compared to the cost of a shutdown caused by complete spider failure. Ever Power supplies replacement spiders in individual or bulk quantities.<\/p>\n<\/div>\n<\/div>\n

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When should I choose a jaw flexible coupling over a disc coupling or oldham coupling for a servo motor application in UK automation?<\/h3>\n<\/div>\n
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Choose a jaw flexible coupling when moderate torsional compliance and vibration damping are more important than zero backlash. For velocity control loops with moderate stiffness requirements and noise\/vibration as a concern, the jaw coupling is usually the most cost-effective option. For precision positioning systems requiring zero backlash \u2014 such as CNC rotary axes or high-resolution measurement drives \u2014 specify a disc or bellows coupling instead. The jaw coupling’s combination of low price, easy spider replacement, and adequate stiffness makes it the workhorse coupling for 80% of UK automation applications outside the highest-precision positioning class.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Complete Coupling Solutions from Ever Power<\/h2>\n

Beyond jaw flexible couplings, Ever Power supplies a comprehensive range of cardan shaft couplings, disc couplings, gear couplings, and custom drive components to UK engineering buyers. All products are backed by our applications engineering team and competitive pricing structure.<\/p>\n

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\ud83d\udce7 Get a Quote \u2014 sales@cardancoupling.top<\/a><\/p>\n

Ever Power \u00b7 Jaw Flexible Couplings \u00b7 Supplied to United Kingdom & Europe \u00b7 edit by gzl<\/p>\n<\/div>\n

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What is the best jaw flexible coupling size for a 22 kW conveyor motor drive in a UK food processing plant?<\/p>\n

For a 22 kW motor at 1,450 rpm with a service factor of 1.5, the JM1-65 is typically recommended, offering a TKN of 160 N\u00b7m and TK max of 320 N\u00b7m. Confirm shaft bore size before ordering.<\/div>\n<\/div>\n
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How much does a jaw flexible coupling typically cost when ordering from a supplier in the United Kingdom?<\/p>\n

Pricing varies by size and quantity. Contact sales@cardancoupling.top for a same-day quote with your model, bore, and quantity requirements.<\/div>\n<\/div>\n
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Which jaw flexible coupling spider material should I choose for a pump application in a Scottish water treatment facility?<\/p>\n

Standard polyurethane suits most water treatment pump applications. NBR rubber is recommended for caustic chemical exposure; Hytrel for temperatures above 80\u00b0C.<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Jaw Flexible Coupling | Polyurethane spider, aluminium\/steel hubs, H7 bore, DIN keyway. JM14\u2013135, up to 1880 N\u00b7m. UK B2B supply & custom sizes available.<\/p>","protected":false},"featured_media":4116,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[5637],"product_tag":[],"class_list":["post-4146","product","type-product","status-publish","has-post-thumbnail","product_cat-cardan-coupling","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/cardancoupling.top\/ms\/wp-json\/wp\/v2\/product\/4146","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cardancoupling.top\/ms\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/cardancoupling.top\/ms\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/cardancoupling.top\/ms\/wp-json\/wp\/v2\/comments?post=4146"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cardancoupling.top\/ms\/wp-json\/wp\/v2\/media\/4116"}],"wp:attachment":[{"href":"https:\/\/cardancoupling.top\/ms\/wp-json\/wp\/v2\/media?parent=4146"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/cardancoupling.top\/ms\/wp-json\/wp\/v2\/product_brand?post=4146"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/cardancoupling.top\/ms\/wp-json\/wp\/v2\/product_cat?post=4146"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/cardancoupling.top\/ms\/wp-json\/wp\/v2\/product_tag?post=4146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}