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Heavy-duty Torque Limiter Coupling for steel mills, cranes, mining and port equipment
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Industrial Coupling

Torque Limiter Coupling

Designed for flying shears, cutting lines and drives that need a precise overload point; repeatable torque release and drive-train protection.

  • Fixed design torque
  • Over-torque protection
  • Precise torque control
Series
TORQUE / SHAFT / INSTALLATION / RESET
Model entries
4
HTML tables
1
Drawings / files
0
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No drawing? Send old coupling photos, nameplate details and shaft dimensions.

Documented engineering data

Product Overview and Application Boundary

A torque limiter coupling controls the maximum transmitted torque through a preset release mechanism. When flying shears, cutting lines, indexing mechanisms or conveyors encounter jamming or abnormal torque peaks, it acts at the set value to protect downstream equipment. Its key requirements are stable release torque, clear reset method and reliable repeated operation. Selection should confirm set torque range, allowable speed, bore, keyway, reset method, operating frequency and permitted impact value. For imported-brand replacement or custom projects, old drawings and nameplate data should be provided.

Typical use

Recommended for flying shears, cutting lines and drives that need a precise overload point.

Selection focus

Confirm torque, speed, shaft diameter, keyway, service factor, misalignment and working environment before selection.

Custom options

Bore, keyway, material, heat treatment, dynamic balancing, surface treatment and export packing can be customized.

Material and inspection

Common materials include 45 steel, 42CrMo or project-specified grades; inspection records can be supplied on request.

Manufacturing Control

Machining, Heat Treatment and Inspection Process for Torque Limiter Coupling

This route follows Torque Limiter Coupling from drawing and material review through blank preparation, CNC rough machining, feature machining, heat treatment, reinspection, finish machining, assembly and final release. The approved drawing determines the exact material and treatment route.

Manufacturing and inspection flowchart for Torque Limiter Coupling
Typical machining and heat-treatment route for Torque Limiter Coupling; drawing-specific operations are released only after technical approval.
  1. 01. Protection torque and interface review: Confirm torque, speed, shaft interfaces, alignment allowance, acceptance criteria and the approved drawing before release.
  2. 02. Material certificate and blank inspection: Verify material identity, certificate, heat number, blank dimensions and the specified forging, casting or bar-stock route.
  3. 03. Saw cutting and forging/casting blank preparation: Saw-cut the stock or prepare the forging/casting blank, remove scale, transfer traceability marks and retain machining allowance.
  4. 04. CNC rough turning of faces, diameters and bores: Use CNC or vertical lathes to rough-turn faces, outside diameters, bores and datum shoulders, leaving allowance for heat-treatment distortion and finishing.
  5. 05. Friction faces, pressure plate and adjuster machining: Machine the named teeth, grooves, holes, splines or mechanism features by turning, milling, hobbing, shaping, drilling, boring or grinding as specified.
  6. 06. Friction plate, disc spring and adjuster preparation: Manufacture or verify the spring, pin, bearing, friction or elastomer element to the released specification, with batch traceability where required.
  7. 07. Release/friction component heat and surface treatment: Heat-treat springs, pins, cams and load-carrying release or friction parts according to their material; apply the approved surface treatment while protecting threads and precision fits.
  8. 08. Hardness, distortion and NDT reinspection: Check hardness, effective case where applicable, distortion and surface condition; perform UT, MT or PT when required before final machining.
  9. 09. Bore, keyway and fit finishing: Finish-turn or grind datum faces and fits, then bore the shaft holes and machine keyways, splines, seal seats or mounting interfaces to the approved tolerances.
  10. 10. Set torque and repeatability verification: Assemble the release or friction stack, set the specified torque and verify release response and repeatability over the required test cycles.
  11. 11. Final inspection, marking and release: Complete final inspection, traceability marking, rust protection and packing only after the required records and acceptance results are complete.

Documented engineering data

Selection Information to Confirm

Final model selection is based on the actual drive data and approved drawing. Provide the items you already know; unknown values can be reviewed by engineering.

Upload Drawing & Get Quote
  1. 01Required torque or motor power and service factor
  2. 02Operating speed, peak load, starts and reversing duty
  3. 03Shaft diameters d1/d2, keyways and fit requirements
  4. 04DBSE, overall length and available installation space
  5. 05Temperature, dust, moisture, corrosion and maintenance access
  6. 06Existing drawing, old part photo, nameplate or measured dimensions

Documented engineering data

Model and Dimension Data

Use each catalogue drawing together with its HTML table. Final torque, speed, bore, material and fit remain subject to the approved project drawing.

Torque Limiter Coupling data sheet

On smaller screens, swipe horizontally or view the compact model cards.

ItemEngineering data to confirmRecommended range / notesRequired for quotation
Torque boundaryRated torque,peak torque and overload trigger conditionCheck by protection level and service factorMotor power,speed,reducer ratio,jam or shock condition
Shaft end dimensionsd1/d2,keyway,shaft extension length and fit toleranceVerify against old part or equipment drawingDrawing,old part photo,nameplate or measured dimensions
Installation envelopeOutside diameter,total length,guard and maintenance spaceAvoid interference with guard,bearing seat or brakeSite installation photo or assembly drawing
Reset /release modeShear,friction,ball detent,constant torque or manual resetConfirm by shutdown and protection logicWhether shutdown is allowed and auto reset is required

Documented engineering data

Related Applications

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Documented engineering data

Related and Alternative Products

Heavy-duty Safety Coupling for steel mills, cranes, mining and port equipmentSafety CouplingDesigned for feeders, uncoilers, shear lines and overload-sensitive drives; defined overload release to protect shafts, gearboxes and driven machines.Heavy-duty Drum Gear Coupling for steel mills, cranes, mining and port equipmentDrum Gear CouplingDesigned for steel rolling mills, cranes, mining drives and port handling equipment; high torque capacity with axial, angular and radial misalignment compensation.Heavy-duty Grid Coupling for steel mills, cranes, mining and port equipmentGrid CouplingDesigned for belt conveyors, crushers, induced-draft fans and shock-loaded auxiliary drives; torsional damping, shock absorption and practical maintenance.Heavy-duty Universal Joint Coupling for steel mills, cranes, mining and port equipmentUniversal Joint CouplingDesigned for rolling mill main drives, straighteners and long-distance shafting; large working angle compensation with heavy-duty torque transmission.

Documented engineering data

Selection Guides and Technical Articles

Torque Limiter Coupling for Flying Shear | Selection GuideTorque Limiter Coupling selection for flying shear: torque, speed, bore, keyway, load, alignment, maintenance, RFQ data.Torque Limiter Coupling for Shearing Machine | Selection GuideTorque Limiter Coupling selection for shearing machine: torque, speed, bore, keyway, load, alignment, maintenance, RFQ …Torque Limiter Coupling for Conveyor Overload ProtectionPractical guidance on torque limiter coupling, including torque, speed, bore, keyway, operating duty and RFQ data for e…

FAQ

Product Selection FAQ

Can the Torque Limiter Coupling be customized from a drawing or old part?

Yes. We can confirm bore, keyway, material, heat treatment, balancing grade, surface treatment and export packing by drawing or old part photos.

What information is needed before quotation?

Please send torque or motor power, speed, shaft diameter, keyway, equipment type, working condition, quantity, drawings or old coupling photos.

Can it replace an imported coupling brand?

Replacement is evaluated after checking dimensions, torque, material, installation space and working condition. Final drawings should be confirmed before production.

What applications are a good fit for the Torque Limiter Coupling?

Recommended for flying shears, cutting lines and drives that need a precise overload point.

What should be checked during installation and maintenance?

Confirm the approved release or limiting torque, shaft interface, fastener tightening and guarding before operation. After a release event, identify the overload cause and follow the specified reset and inspection procedure.

Engineering data

Send an Engineering RFQ

Complete the contact step first, then add the operating data you already know. Unknown engineering values do not block submission.

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