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Heavy-duty Pin Bush Coupling for steel mills, cranes, mining and port equipment
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Industrial Coupling

Pin Bush Coupling

Designed for feeders, auxiliary rollers, pumps and medium-duty equipment; simple structure, elastic cushioning and easy replacement of wearing bushes.

  • Pin elements absorb shock
  • Smooth torque transmission
  • Moderate offset compensation
  • Easy installation
Series
LX
Model entries
14
HTML tables
1
Drawings / files
9
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No drawing? Send old coupling photos, nameplate details and shaft dimensions.

Documented engineering data

Product Overview and Application Boundary

A pin bush coupling is made of two hubs, pins, elastic bushings, retaining parts and fasteners. Torque is transmitted through the pins and bushings while the elastic elements provide cushioning and vibration reduction. The structure is simple, maintenance is convenient, and worn bushings can be replaced separately. It is suitable for pumps, fans, small conveyors, feeders and medium- or low-power general machinery. It works best where impact is moderate, installation space is limited and maintenance cost matters. Before quotation, confirm bore, keyway, outside diameter limit, pin size, bushing material, working temperature and expected replacement cycle.

Typical use

Recommended for feeders, auxiliary rollers, pumps and medium-duty equipment.

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 Pin Bush Coupling

This route follows Pin Bush 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 Pin Bush Coupling
Typical machining and heat-treatment route for Pin Bush Coupling; drawing-specific operations are released only after technical approval.
  1. 01. Drive data and drawing 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. Matched drilling/reaming of flange pin holes: Machine the named teeth, grooves, holes, splines or mechanism features by turning, milling, hobbing, shaping, drilling, boring or grinding as specified.
  6. 06. Pin turning and elastic-bush batch inspection: Manufacture or verify the spring, pin, bearing, friction or elastomer element to the released specification, with batch traceability where required.
  7. 07. Pin and load-part Q&T/surface hardening: Quench and temper pins and load-carrying steel parts; apply local induction or surface hardening only where the drawing specifies wear-resistant zones.
  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. Elastic-element fit and final assembly inspection: Verify dimensions, runout, tooth or component fit and controlled assembly; record lubrication, fastener, balance or functional checks applicable to the product.
  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.

LX Pin Bush Coupling data sheet

Source: GB/T5014-2003
Dimension points to confirm
LX Pin Bush Coupling dimension drawing with bore, outside diameter, length and installation confirmation points
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ModelNominal torque Tn N·mAllowable speed n r/minBore diameterBore length LMain dimensions mmWeight kg
DD1S
LX1(HL1)250850012-2427-5290402.52
LX2(HL2)560630020-3538-82120552.55
LX3(HL3)1250475030-4860-112160752.58
LX4(HL4)2500387040-6384-142195100322
LX5(HL5)3150345050-75107-142220120330
LX6(HL6)6300272060-85107-172280140453
LX7(HL7)11200236070-110107-212320170498
LX8(HL8)16000212080-125167-2123602005119
LX9(HL9)224001850100-140167-2524102305197
LX10(HL10)355001600110-180167-3024802806322
LX11(HL11)500001400130-220202-3525403406520
LX12(HL12)800001220160-260242-4106304007714
LX13(HL13)1250001080190-300282-47071046581057
LX14(HL14)180000950240-340330-55080053081956

For LX12, LX13 and LX14, verify whether counterbore is allowed when using Z-type bore.

Documented engineering data

Product Documents and Drawing Files

Only files currently linked to this product are listed. Request the required model if the correct revision is not shown.

PDFBL Pin Bush Coupling catalogue (Q/ZB231-74) PDFOpen filePDFLX Pin Bush Coupling catalogue (GB/T5014-2003) PDFOpen filePDFLXZ Pin Bush Coupling catalogue (GB/T5014-2003) PDFOpen filePDFLT Pin Bush Coupling catalogue (GB/T4323-2002) PDFOpen filePDFLTZ Pin Bush Coupling catalogue (GB/T4323-2002) PDFOpen filePDFLZ Pin Bush Coupling catalogue (GB/T5015-2003) PDFOpen filePDFLZZ Pin Bush Coupling catalogue (GB/T5015-2003) PDFOpen filePDFLZJ Pin Bush Coupling catalogue (former ZLZ) PDFOpen file

Documented engineering data

Related Applications

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Documented engineering data

Related and Alternative Products

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Documented engineering data

Selection Guides and Technical Articles

Pin Bush Coupling for Disc Feeder | Selection GuidePin Bush Coupling selection for disc feeder: torque, speed, bore, keyway, load, alignment, maintenance, RFQ data.Pin Bush Coupling for Galvanizing Line Auxiliary Roll Drive | Selection GuidePin Bush Coupling selection for galvanizing line auxiliary roll drive: torque, speed, bore, keyway, load, alignment, ma…Pin Bush Coupling Selection Guide for General MachineryPractical guidance on pin bush coupling, including torque, speed, bore, keyway, operating duty and RFQ data for enginee…

FAQ

Product Selection FAQ

Can the Pin Bush 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 Pin Bush Coupling?

Recommended for feeders, auxiliary rollers, pumps and medium-duty equipment.

What should be checked during installation and maintenance?

Check shaft alignment, bore and keyway fit, fastener tightening and the condition of the elastic element. Replace the elastic element if cracking, hardening, permanent deformation or abnormal clearance is found.

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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