• AUTHORIZED SUPPLIER — FLENDER INDIA

    Flender Couplings & Gearbox Parts Supplier in India

    Kontek Marine is a trusted supplier of Flender industrial couplings, gear coupling elements, and power transmission spare parts in India. We stock precision-engineered Flender components for marine, offshore, wind energy, and industrial automation applications across the country.

    Flender Couplings Gear Coupling Parts Power Transmission Industrial Supply
    📩 Request a Quote 📞 Call: +91 7303620603

    FLENDER MOTION CONTROL PRODUCTS

    Sourcing genuine Flender coupling replacement parts shouldn't slow your maintenance schedule down. At Kontek Marine, we've built a focused inventory around the Flender components that plant engineers and procurement teams actually need flexible coupling elements, bolt sets, rubber buffers, gear coupling assemblies, and power transmission hardware all dispatched from our New Delhi facility. Our Flender product range covers widely used coupling families including FLUDEX, RUPEX, N-EUPEX, and BIPEX series, alongside Flender helical gearbox spare parts suited for heavy industrial and marine drive systems. We serve clients across manufacturing plants, cement industries, steel mills, offshore platforms, and wind turbine installations throughout India, with the sourcing capability to fulfil both standard and hard-to-find Flender part numbers. Contact our team with your part reference and we'll respond with stock availability and pricing without delay.

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    Flender RUPEX Size 105 Coupling Bolt Set kontek-marine
    PART NO. 2LC01301WB000AA0

    Flender RUPEX Size 105 Coupling Bolt Set

    The RUPEX Size 105 bolt set is the correct fastener assembly for Flender's entry-level RUPEX pin-and-bush coupling. Used on light industrial drives including small pump sets and auxiliary conveyor drives, this bolt set maintains the clamping integrity that prevents micro-movement between coupling halves — the primary cause of premature bush element wear and early coupling failure at this size range.

    Price On Request
    Flender RUPEX Size 125 Coupling Bolt Set kontek-marine
    PART NO. 2LC01302WB000AA0

    Flender RUPEX Size 125 Coupling Bolt Set

    Designed for mid-entry RUPEX couplings on centrifugal pump drives, mixer shafts, and light conveyor applications. The Size 125 bolt set holds the pin-and-bush interface under correct preload through thermal cycling and dynamic load reversals — ensuring the coupling reaches its rated service interval rather than requiring early inspection due to incorrect fastener specification.

    Price On Request
    Flender RUPEX Size 144 Coupling Bolt Set kontek-marine
    PART NO. 2LC01303WB000AA0

    Flender RUPEX Size 144 Coupling Bolt Set

    The Size 144 bolt set covers mid-range RUPEX couplings on industrial fans, medium-bore pumps, and process conveyor drives. At this size, uniform bolt preload across all flange positions is critical uneven clamping causes differential bush wear that shortens coupling life and generates the progressive vibration increase often misdiagnosed as bearing failure.

    Price On Request
    Flender RUPEX Size 162 Coupling Bolt Set kontek-marine
    PART NO. 2LC01304WB000AA0

    Flender RUPEX Size 162 Coupling Bolt Set

    The Size 162 bolt set serves the upper-mid range of Flender's RUPEX coupling family, commonly found on heavy-duty fan drives, crusher auxiliaries, and large pump trains. At this flange diameter, maintaining consistent bolt torque across every pin position is essential — any variation shifts load concentration onto individual bush elements and accelerates uneven coupling wear well before the planned overhaul interval.

    Price On Request
    Flender RUPEX Size 178 Coupling Bolt Set kontek-marine
    PART NO. 2LC01305WB000AA0

    Flender RUPEX Size 178 Coupling Bolt Set

    Specified for high-torque RUPEX couplings on mill drives, large centrifugal pumps, and heavy process machinery. The Size 178 bolt set delivers the clamping force distribution that keeps the coupling's pin-and-bush geometry stable under sustained dynamic loading — protecting connected gearbox and motor bearings from the transmitted vibration that results from a loose or incorrectly fastened coupling flange.

    Price On Request
    Flender RUPEX Size 198 Coupling Bolt Set kontek-marine
    PART NO. 2LC01306WB000AA0

    Flender RUPEX Size 198 Coupling Bolt Set

    The Size 198 covers the larger end of the RUPEX working range drives where torque levels, shock loading, and continuous duty operation place the highest mechanical demand on the coupling fastener assembly. Typically deployed on primary conveyor drives, rotary kiln auxiliaries, and offshore pump stations. Using the correct OEM-specified bolt set at this size is non-negotiable; dimensional substitutes compromise flange integrity and reduce the coupling's ability to absorb torsional shock under peak load conditions.

    Price On Request
    Flender RUPEX Size 228 Coupling Bolt Set kontek-marine
    PART NO. 2LC01307WB000AA0

    Flender RUPEX Size 228 Coupling Bolt Set

    The Size 228 bolt set is designed for heavy industrial RUPEX couplings on ball mill drives and large blower shafts. Correct bolt specification at this flange diameter is critical — wrong fastener hardware directly weakens the coupling's torsional shock absorption under peak load conditions.

    Price On Request
    Flender RUPEX Size 252 Coupling Bolt Set kontek-marine
    PART NO. 2LC01308WB000AA0

    Flender RUPEX Size 252 Coupling Bolt Set

    Built for high-power pump trains, large conveyor drives, and heavy gearbox output flanges. The Size 252 bolt set maintains pin-and-bush alignment through extended operating cycles, preventing the progressive coupling looseness that accelerates bearing wear on connected equipment.

    Price On Request
    Flender RUPEX Size 285 Coupling Bolt Set kontek-marine
    PART NO. 2LC01310WB000AA0

    Flender RUPEX Size 285 Coupling Bolt Set

    The Size 285 covers the highest torque applications in the RUPEX range rotary kiln drives, grinding mills, and offshore heavy-duty systems. At this size, correct bolt specification is non-negotiable, any compromise risks coupling failure under shock loading with serious consequences for operational continuity.

    Price On Request
    Flender RUPEX Size 320 Coupling Bolt Set kontek-marine
    PART NO. 2LC01311WB000AA0

    Flender RUPEX Size 320 Coupling Bolt Set

    The Size 320 bolt set is specified for large industrial RUPEX couplings on primary crusher drives, heavy conveyor systems, and high-power rotating equipment. At this flange size, uniform bolt torque across every pin position is essential to prevent load concentration that shortens bush element life ahead of schedule.

    Price On Request
    Flender RUPEX Size 360 Coupling Bolt Set kontek-marine
    PART NO. 2LC01312WB000AA0

    Flender RUPEX Size 360 Coupling Bolt Set

    Designed for RUPEX couplings in the upper heavy-duty range — cement mill drives, large marine propulsion auxiliaries, and high-torque industrial gearbox flanges. The Size 360 bolt set maintains pin-and-bush interface integrity under the sustained shock loading and thermal cycling these applications generate continuously.

    Price On Request
    Flender RUPEX Size 400 Coupling Bolt Set kontek-marine
    PART NO. 2LC01313WB000AA0

    Flender RUPEX Size 400 Coupling Bolt Set

    The Size 400 is among the largest in Flender's RUPEX coupling bolt series, built for maximum torque drive applications including kiln main drives, large grinding mills, and offshore heavy-duty installations. Correct OEM bolt specification at this size is critical — dimensional substitutes cannot sustain the clamping load required to keep the coupling assembly stable under full operating torque.

    Price On Request
    Flender RUPEX Size 450 Coupling Bolt Set kontek-marine
    PART NO. 2LC01314WB000AA0

    Flender RUPEX Size 450 Coupling Bolt Set

    The Size 450 bolt set covers heavy industrial RUPEX couplings at the upper end of the range — typically deployed on large grinding mill drives, high-power compressor trains, and primary industrial machinery. At this diameter, every bolt position must carry equal clamping load; any fastener variation accelerates bush wear and introduces shaft vibration under full operating torque.

    Price On Request
    Flender RUPEX Size 500 Coupling Bolt Set kontek-marine
    PART NO. 2LC01315WB000AA0

    Flender RUPEX Size 500 Coupling Bolt Set

    The Size 500 represents the top bracket of Flender's RUPEX coupling bolt series, engineered for maximum torque drive applications in cement, mining, steel, and offshore industries. This bolt set sustains the structural integrity of the coupling flange under continuous heavy-duty operation where shock loading, thermal stress, and high cycle fatigue are routine operating conditions.

    Price On Request
    Flender RUPEX Size 560 Coupling Bolt Set kontek-marine
    PART NO. 2LC01316WB000AA0

    Flender RUPEX Size 560 Coupling Bolt Set

    The Size 560 bolt set is engineered for extra-heavy industrial RUPEX couplings on large mill drives, high-power industrial fans, and heavy process machinery. At this flange diameter, OEM-specified bolt hardware is the only reliable option — off-specification fasteners cannot maintain the clamping load needed to keep the coupling stable under sustained high-torque operation.

    Price On Request
    Flender RUPEX Size 630 Coupling Bolt Set kontek-marine
    PART NO. 2LC01317WB000AA0

    Flender RUPEX Size 630 Coupling Bolt Set

    Designed for the largest continuous-duty RUPEX coupling installations — primary kiln drives, heavy mining conveyor systems, and large offshore rotating equipment. The Size 630 bolt set holds the full pin-and-bush assembly under the extreme torsional forces and shock load cycles these applications generate across long operating periods.

    Price On Request
    Flender RUPEX Size 800 Coupling Bolt Set kontek-marine
    PART NO. 2LC01320WB000AA0

    Flender RUPEX Size 800 Coupling Bolt Set

    The Size 800 is the heaviest rating in Flender's RUPEX coupling bolt series, reserved for the most demanding drive applications in heavy industry. Used on large grinding mills, primary crusher main drives, and high-power marine installations where coupling failure is not an option and every fastener component must perform to exact OEM specification.

    Price On Request
    Flender RUPEX Size 105 Rubber Element Set kontek-marine
    PART NO. 000.001.633.073

    Flender RUPEX Size 105 Rubber Element Set

    The Size 105 rubber element set is the primary wear component in Flender's smallest RUPEX coupling range. These elastomeric elements absorb torsional shock and compensate for shaft misalignment on light industrial drives. Replacing them at scheduled intervals prevents vibration escalation and protects connected motor and gearbox bearings from transmitted shock loads.

    Price On Request
    Flender RUPEX Size 125 Rubber Element Set kontek-marine
    PART NO. 000.001.633.074

    Flender RUPEX Size 125 Rubber Element Set

    Designed for mid-entry RUPEX couplings on pump drives, agitators, and auxiliary conveyor systems. The Size 125 rubber element set restores the coupling's torsional damping and misalignment compensation once elements show signs of hardening, cracking, or compression set — the three key indicators that replacement is overdue.

    Price On Request
    Flender RUPEX Size 144 Rubber Element Set kontek-marine
    PART NO. 000.001.633.075

    Flender RUPEX Size 144 Rubber Element Set

    The Size 144 rubber element set covers RUPEX couplings on medium-duty industrial drives handling higher torque and dynamic loading cycles. Degraded elements at this size allow shock pulses to pass directly into drivetrain components — making timely replacement essential for maintaining equipment reliability and extending bearing service life on connected machinery.

    Price On Request
    Flender RUPEX Size 162 Rubber Element Set kontek-marine
    PART NO. 000.001.633.076

    Flender RUPEX Size 162 Rubber Element Set

    The Size 162 rubber element set serves RUPEX couplings on heavy fan drives, crusher auxiliaries, and large pump trains. At this size, worn elements allow shock pulses to bypass the coupling's damping function entirely — transferring torsional stress directly into gearbox output shafts and motor bearings with each load cycle.

    Price On Request
    Flender RUPEX Size 198 Rubber Element Set kontek-marine
    PART NO. 000.001.633.078

    Flender RUPEX Size 198 Rubber Element Set

    Designed for RUPEX couplings handling elevated torque on mill drives, large centrifugal pumps, and continuous process machinery. The Size 198 element set restores full torsional damping capacity — preventing the vibration build-up that develops progressively as rubber elements harden and lose their designed compression characteristics over time.

    Price On Request
    Flender RUPEX Size 228 Rubber Element Set kontek-marine
    PART NO. 000.001.633.079

    Flender RUPEX Size 228 Rubber Element Set

    The Size 228 rubber element set covers heavy industrial RUPEX couplings on ball mill drives, large blower shafts, and high-torque process equipment. Rubber degradation at this coupling size directly impacts drivetrain reliability hardened or cracked elements transmit shock loading into connected equipment that scheduled element replacement would have absorbed.

    Price On Request
    Flender RUPEX Size 252 Rubber Element Set kontek-marine
    PART NO. 000.001.633.080

    Flender RUPEX Size 252 Rubber Element Set

    The Size 252 rubber element set is specified for high-torque RUPEX couplings on large conveyor drives, heavy pump trains, and industrial gearbox output stages. Timely element replacement at this size prevents the progressive vibration increase that develops as rubber compounds lose elasticity, a deterioration pattern that accelerates bearing wear on both the motor and driven machine.

    Price On Request
    Flender RUPEX Size 285 / 253 Rubber Element Set kontek-marine
    PART NO. 000.001.633.081

    Flender RUPEX Size 285 / 253 Rubber Element Set

    Covering two RUPEX size designations within a single part number, this rubber element set serves couplings on rotary kiln auxiliaries, grinding mill drives, and offshore pump stations. Degraded elements at this coupling size transmit shock loading directly into drivetrain components replacement at planned intervals is the most cost-effective protection for high-value connected equipment.

    Price On Request
    Flender RUPEX Size 320 Rubber Element Set kontek-marine
    PART NO. 000.001.633.063

    Flender RUPEX Size 320 Rubber Element Set

    The Size 320 element set covers large industrial RUPEX couplings on primary crusher drives, heavy conveyor systems, and high-power rotating equipment. At this flange size, element condition directly determines drivetrain stability, worn rubber at Size 320 transfers full torsional shock into gearbox and motor internals with each load cycle.

    Price On Request
    Flender RUPEX Size 360 Rubber Element Set kontek-marine
    PART NO. 000.001.633.064

    Flender RUPEX Size 360 Rubber Element Set

    The Size 360 element set is designed for heavy-duty RUPEX couplings on cement mill drives, large marine propulsion auxiliaries, and high-torque industrial gearbox flanges. At this coupling size, element degradation progresses faster under sustained shock loading — making scheduled replacement a critical part of any planned maintenance programme.

    Price On Request
    Flender RUPEX Size 400 Rubber Element Set kontek-marine
    PART NO. 000.001.633.065

    Flender RUPEX Size 400 Rubber Element Set

    Specified for the upper heavy-duty RUPEX range on kiln main drives, large grinding mills, and offshore rotating equipment. The Size 400 rubber element set restores full torsional isolation between the motor and driven machine preventing the structural fatigue that accumulates in drivetrain components when worn elements can no longer absorb shock loading effectively.

    Price On Request
    Flender RUPEX Size 450 Rubber Element Set kontek-marine
    PART NO. 000.001.633.066

    Flender RUPEX Size 450 Rubber Element Set

    The Size 450 covers extra-heavy RUPEX couplings at the top end of the industrial range — typically on large grinding mill drives, high-power compressor trains, and primary process machinery. Rubber element condition at this size has a direct impact on connected equipment bearing life and gearbox reliability across extended operating periods.

    Price On Request
    Flender RUPEX Size 450 Flexible Rubber Element Set kontek-marine
    PART NO. 000.001.633.066

    Flender RUPEX Size 450 Flexible Rubber Element Set

    The Size 450 flexible rubber element set covers extra-heavy RUPEX couplings on large grinding mill drives, high-power compressor trains, and primary process machinery. At this coupling size, worn elements lose their ability to absorb torsional shock accelerating fatigue on connected motor and gearbox internals well ahead of their design service life.

    Price On Request
    Flender RUPEX Size 500 Flexible Rubber Element Set kontek-marine
    PART NO. 000.001.633.067

    Flender RUPEX Size 500 Flexible Rubber Element Set

    The Size 500 flexible rubber element set operates at the top bracket of Flender's RUPEX range couplings handling maximum continuous torque on large grinding mills, heavy mining conveyors, and high-power marine drives. Fresh rubber elements at this size restore the torsional isolation that protects expensive connected equipment from shock-induced fatigue failure.

    Price On Request
    Flender RUPEX Size 560 Flexible Rubber Element Set kontek-marine
    PART NO. 000.001.633.068

    Flender RUPEX Size 560 Flexible Rubber Element Set

    Specified for extra-heavy RUPEX couplings on primary kiln drives, high-power compressor trains, and offshore heavy rotating equipment. At Size 560, element replacement is a scheduled maintenance priority degraded rubber allows unfiltered shock and torsional vibration to reach connected gearbox and motor internals directly.

    Price On Request
    Flender RUPEX Size 630 Flexible Rubber Element Set kontek-marine
    PART NO. 000.001.633.069

    Flender RUPEX Size 630 Flexible Rubber Element Set

    Specified for extra-heavy RUPEX couplings on primary kiln drives, high-power compressor The Size 630 rubber element set covers the largest continuous-duty RUPEX couplings on kiln drives, heavy mining conveyors, and offshore equipment. Degraded elements at this size transmit full torsional shock directly into connected machinery, scheduled replacement is essential for protecting high-value drivetrain components.

    Price On Request
    Flender RUPEX Size 800 Flexible Rubber Element Set kontek-marine
    PPART NO. 000.001.633.071

    Flender RUPEX Size 800 Flexible Rubber Element Set

    The Size 800 is the heaviest rating in Flender's RUPEX element series, specified for large grinding mills, primary crusher drives, and high-power marine installations. Genuine Flender rubber elements at this size are non-negotiable substitute materials which cannot match the shore hardness and fatigue resistance these applications demand.

    Price On Request
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