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Unique Pin Bush Coupling

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Unique Pin Bush Couplings

Industrial Grade · Cast Iron & High Grade Rubber

Unique Pin Bush Couplings

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Unique Pin Bush Couplings
FLANGE TYPE · PIN & BUSH CONNECTION

Unique Pin Bush Couplings are engineered as a high-quality equivalent to Rathi Pin Bush Couplings and B-Flex Couplings, delivering reliable power transmission, superior flexibility, and long service life. Designed for heavy-duty industrial applications, our couplings efficiently transmit torque while minimizing vibration, shock loads, and misalignment effects. The specially designed barrel-shaped rubber bushes allow angular, parallel, and axial shaft misalignments without imposing harmful stresses on the connected machinery. This design increases equipment life, reduces maintenance costs, and ensures smooth, trouble-free operation.

ThreadNo Thread
SealingRubber bush provides shock absorption
BorePilot / Finished as per requirement
Max. SpeedUp to 3600 RPM
ConnectionFlange Type Connection with Pin and Bush
Head CodeStandard
Torque10 Nm to 12000 Nm (varies with size)

Product Specifications

BorePilot / Finished as per requirement
MaterialCast Iron/Steel Hub, High Grade Rubber Bush, Mild Steel Pins
Torque10 Nm to 12000 Nm (varies with size)
ShapeRound / Cylindrical
StructureFlexible Coupling with Multiple Pin-Bush Elements
ApplicationPower Transmission in Machinery and Equipment
ColorBlack / Blue as per Standard
Temperature Range-20°C to +80°C
Bushing MaterialSynthetic Rubber or Neoprene
Vibration DampeningYes, provided by rubber bushes
SealingRubber bush provides shock absorption
Max. SpeedUp to 3600 RPM
StandardIS 5136 / DIN Standard
ThreadNo Thread
Inner DiameterAs per Customer Specification (usually 20mm–250mm)
Outer DiameterVaries by Model (typically 60mm–350mm)
TechniqueMachined
ConnectionFlange Type Connection with Pin and Bush
Surface TreatmentPaint Coated / Phosphated
Head CodeStandard
Misalignment CapacityAxial: ±1 mm, Angular: up to 1°
UsagePump, Motor, Conveyor, Compressor, Fan Coupling Applications
Custom Sizes AvailableYes, on request
Number of Pins4 to 12, depending on coupling size

Product Description

Unique Pin Bush Couplings are engineered with 4 to 12 pins to deliver flexible, reliable power transmission across pumps, motors, conveyors, compressors, and fans. Premium synthetic rubber or neoprene bushes provide strong vibration dampening and shock absorption, accommodating axial misalignment up to 1 mm and angular misalignment up to 1°. Available in black or blue with custom sizes on request, these machined, flange-connected couplings operate reliably up to 3600 RPM and 12000 Nm torque, in full conformance with IS 5136 / DIN standards.

Advantage & Application Highlights

Unique Pin Bush Couplings excel at power transmission, offering strong vibration dampening and shock absorption. Their flexible pin-bush design accommodates both axial and angular misalignment, making them well suited to pump, motor, conveyor, compressor, and fan applications. High torque capacity, premium rubber bushes, and IS 5136 / DIN compliance ensure dependable performance across both small and large-scale operations.

Delivery Time, Sample Policy & Certifications

Orders are typically dispatched within a short lead time to minimize downtime, and sample requests can be arranged so clients can review quality before committing to a full order. Every coupling conforms to IS 5136 / DIN standards and undergoes paint-coated or phosphated surface treatment for long-term reliability, with responsive service and swift delivery supported across India.

FAQs of Unique Pin Bush Couplings

How does the Unique Pin Bush Coupling accommodate misalignment? +
It is designed to handle axial misalignment up to 1 mm and angular misalignment up to 1°, thanks to its flexible pin-bush structure and high-grade rubber bushes.
What are the main usage applications for these couplings? +
They are extensively used in pump, motor, conveyor, compressor, and fan coupling applications, supporting both small and heavy-duty power transmission across various industries.
Where can custom sizes be requested for Unique Pin Bush Couplings? +
Custom sizes are available on request. You can contact the manufacturer, supplier, or distributor directly in India to specify your requirements for pilot or finished bore dimensions, diameters, and other parameters.
What certifications are provided with these couplings? +
Each coupling is certified to IS 5136 or DIN standards and comes with paint-coated or phosphated surface treatments to guarantee quality and reliability in operation.
How quickly are orders typically dispatched? +
Orders for Unique Pin Bush Couplings are generally dispatched promptly, with lead times depending on size and specifications, ensuring minimal wait and efficient delivery for clients.
What is the process for obtaining a sample before full purchase? +
Clients can request samples according to the supplier's policy, allowing an opportunity to assess product quality and specifications before making larger expenditure commitments.
Unique Pin Bush Coupling

Industrial Grade · Cast Iron & Mild Steel

Unique Pin Bush Coupling

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Unique Pin Bush Coupling
FLANGED PIN & BUSH COUPLING · SIZE 96–1200C
SealingRubber Bushes for Damping
ConnectionPin and Bush Connection
BoreCustomizable as per Shaft Size
Head CodeCylindrical
TorqueUpto 6800 Nm
Max. Speed3500 RPM
MaterialCast Iron, Mild Steel, or as Specified

Unique Pin Bush Coupling Product Specifications

TorqueUpto 6800 Nm
MaterialCast Iron, Mild Steel, or as Specified
Max. Speed3500 RPM
ApplicationPower Transmission in Pumps, Compressors, and Industrial Machines
TechniqueMachined and Moulded
StandardIS 2693
Head CodeCylindrical
StructureFlanged Coupling with Pins and Bushes
SealingRubber Bushes for Damping
Outer DiameterUp to 520 mm or as Required
ShapeRound
Inner DiameterUp to 300 mm or as Required
BoreCustomizable as per Shaft Size
ConnectionPin and Bush Connection

Unique Pin Bush Coupling Trade Information

Supply Ability1000 Unit Per Week
Sample AvailableYes
Packaging DetailsCarton Boxes
CertificationsISO 9001:2008
Delivery Time10 Days
Sample PolicyContact us for information regarding our sample policy
Main Domestic MarketAll India

Product Description

Available with various control mechanisms, our offered Unique Pin Bush Coupling is highly acknowledged amongst the clients for its remarkable features. The provided coupling is manufactured by making utilization of excellent quality raw materials and the contemporary techniques by our diligent professionals. Extensively demanded in various industries for its quality and high durability, the provided coupling is offered at reasonable rates to the clients. Also, we check this Unique Pin Bush Coupling on different parameters in order to ensure its defect free nature.

  • Rugged Construction
  • Accurate Dimensions
  • High Strength
  • Durable Finish Standards

UNIQUE Pin Bush Couplings in Standard Design With Cast Iron Hubs

Size No. of
Pins		 Rating Max Speed
RPM		 Max Bore E F L G
Torque
NM		 HP/100
RPM		 d1 Dia
mm		d2 Dia
mm		D Dia
9681251.7572002830964450354
112102503.5610038421126268454
12584005.6550040481256575504
140105207.3490048551407688554
160975010.5450060651608595604
18010105014.738006570180102112704
20012145020.334007580200120128804
22511240033.730008590225134144907
25012300042.12700951052501541641007
28511490068.824001051102851661761107
3201260008421001201253201901951257
3601110000140190013013536020521014010
4001014000196170013514540021823016010
450122100029515001601604502552551806
500142750038513501801805002902902006
560103310046512002002005603203202206
630A124600064510501601606303003002406
630B124600064510502002006303553552406
710A128000011229501801807103503502907
710B128000011229502102407104004002907
800A1411000015438502202208004204202907
800B1211000015438502602608004604602907
800C1211000015438502902908004904902907
900A1619000026667502502509004704703407
900B1619000026667503003009005155153407
900C1619000026667503403409005605603407
1000A162500003508675275275100048048040010
1000B182500003508675320320100053053040010
1000C162500003508675380380100059059040010
1100A163200004490615300300110054054044010
1100B163200004490615350350110059559544010
1100C163200004490615400400110065065044010
1200A184000005613560300300120057057048010
1200B184000005613560375375120064064048010
1200C184000005613560450450120072072048010

Unique Pin Bush Coupling

Unique Bushes are used to connect the various moving arms and pivot points to the chassis to reduce the wear and tear on the mating metal parts.

Unique-PB Flexible Bush Type Couplings are designed for lower stresses on the rubber bushes and pins. Greater flexibility and life compared to other types of pin bush couplings is assured. The standard range covers torque rating upto 15000 kg. M.

Versatile Power Transmission Solution

Our Unique Pin Bush Coupling is engineered to deliver precise, durable performance in demanding industrial applications. Its adaptable design accommodates a wide range of shaft sizes and offers high torsional resilience. This coupling is perfect for pumps, compressors, and heavy machinery, seamlessly transferring mechanical power with minimal wear and tear.

Durable Construction with Customizable Options

Manufactured from premium cast iron or mild steel, each coupling can be tailored with custom bore sizes to match specific shaft requirements. Rubber bush dampers improve vibration control and prolong equipment life. The flanged, cylindrical head design enhances stability, meeting IS 2693 quality standards for added reliability.

Product Brochure

Full technical datasheet — Size 96 to 1200C · PDF · 06_Unique-Pin-Bush-Coupling.pdf

Download Brochure

FAQs of Unique Pin Bush Coupling

How is the Unique Pin Bush Coupling typically used in industrial applications? +
The Unique Pin Bush Coupling is primarily used for power transmission between shafts in pumps, compressors, and other industrial machines. Its flexible design allows it to accommodate misalignments and absorb shock, ensuring smooth operation and protection of connected equipment.
What materials and sizes are available for this coupling? +
This coupling is available in cast iron, mild steel, or other materials specified by the customer. It supports inner bore diameters up to 300 mm and outer diameters up to 520 mm, making it versatile for various industrial shaft sizes.
When should I consider using a pin bush coupling over other coupling types? +
You should consider a pin bush coupling when your application requires vibration damping, flexibility to tolerate misalignment, or reliable torsional transmission in equipment such as pumps or compressors. Its rubber bush design excels in conditions with potential for shocks or vibrations.
Where can I procure Unique Pin Bush Couplings in India? +
You can obtain Unique Pin Bush Couplings from authorized distributors, exporters, manufacturers, retailers, suppliers, traders, and wholesalers across India. These entities typically offer customization and technical support as per your application needs.
What is the process for customizing the bore size of the coupling? +
During the ordering process, you need to specify the exact shaft size. The manufacturer will machine the bore of the coupling accordingly, ensuring optimal performance for your application.
How does the rubber bush design benefit power transmission equipment? +
The integrated rubber bushes provide damping for vibrations and shocks, reducing noise and wear on connected machinery. This feature not only prolongs the service life of the coupling but also protects the overall drivetrain from excessive mechanical stress.

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