{"id":780,"date":"2026-06-23T09:47:05","date_gmt":"2026-06-23T09:47:05","guid":{"rendered":"https:\/\/oldhamcoupling.net\/product\/sl360-industrial-oldham-coupling\/"},"modified":"2026-06-24T08:47:43","modified_gmt":"2026-06-24T08:47:43","slug":"sl360-industrial-oldham-coupling","status":"publish","type":"product","link":"https:\/\/oldhamcoupling.net\/es\/producto\/sl360-industrial-oldham-coupling\/","title":{"rendered":"SL360 Industrial Oldham Coupling"},"content":{"rendered":"
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SL360 Heavy-Industrial Cross-Slider Oldham Coupling \u2014 360 mm Cast-Iron Hub for Major Mill Main and Marine Propulsion Drives<\/h2>\n

The SL360 industrial Oldham coupling<\/strong> takes the SL family into the realm of major capital-equipment drives. With 32 500 N\u00b7m rated torque \u2014 a substantial jump from the 20 000 N\u00b7m SL340 below it \u2014 360 mm hub OD, 160 mm shaft, and 100 r\/min permissible speed, the SL360 transmits approximately 340 kW of continuous mechanical power. This duty class includes major minerals-processing mill main drives, large ship-propulsion auxiliary lines, primary cement-kiln main drives at major-plant capacity, and the heaviest end of metallurgical-process slow-speed equipment. At this size and torque rating, the SL360 is a major capital-equipment item in its own right, specified through formal engineering review and tracked as a strategic asset on the plant or vessel maintenance-management system across its entire service life.<\/p>\n

The jump from 20 000 N\u00b7m (SL340) to 32 500 N\u00b7m (SL360) reflects an engineering reality of the heavy-mill and large-marine market: there is a substantial population of equipment designed around the 300+ kW slow-speed power envelope where the SL340’s torque margin would be inadequate but a larger SL400’s mass and cost would be unnecessary. The SL360 is precisely sized for this duty profile \u2014 a 25\u201335 % torque-reserve margin against typical host-equipment continuous ratings of 25\u201328 kN\u00b7m, combined with the substantial 6.4 mm parallel-misalignment envelope that absorbs the cumulative misalignment of large-equipment installations. The 258 kg coupling mass reflects the section-modulus required at this rating, with QT500\/QT600 hub options sized to the engineering-preferred shock-load capacity.<\/p>\n

Specifications<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Model<\/td>\nSL360<\/td>\n<\/tr>\n
Nominal Torque (Tn)<\/td>\n32 500 N\u00b7m<\/td>\n<\/tr>\n
Permissible Speed (n)<\/td>\n100 r\/min<\/td>\n<\/tr>\n
Bore (d)<\/td>\n160 mm<\/td>\n<\/tr>\n
Outside Diameter (D)<\/td>\n360 mm<\/td>\n<\/tr>\n
Hub Bore Diameter (D\u2081)<\/td>\n240 mm<\/td>\n<\/tr>\n
Overall Length (L)<\/td>\n280 mm<\/td>\n<\/tr>\n
Slider Plate Thickness (H)<\/td>\n48 mm<\/td>\n<\/tr>\n
Slider Clearance (S)<\/td>\n1.0 mm<\/td>\n<\/tr>\n
Moment of Inertia<\/td>\n19.2 kg\u00b7m\u00b2<\/td>\n<\/tr>\n
Mass<\/td>\n258 kg<\/td>\n<\/tr>\n
Radial Misalignment (\u0394y)<\/td>\n6.4 mm<\/td>\n<\/tr>\n
Angular Misalignment (\u0394\u03b1)<\/td>\n0.5\u00b0<\/td>\n<\/tr>\n
Axial Misalignment (\u0394x)<\/td>\n5.7 mm<\/td>\n<\/tr>\n
Shaft Engagement<\/td>\nTaper-bushed standard<\/td>\n<\/tr>\n
Lubrication<\/td>\nGrease (re-pack 4-monthly)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\"SL360<\/p>\n

Materials<\/h3>\n
\n
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QT500-7 \/ QT600-3 \/ Cast-Steel Hub Options<\/h4>\n

Catalogue standard is QT500-7 ductile cast iron; QT600-3 cast-steel variant is the engineering-preferred upgrade for primary minerals-mill and major-marine deployments. For exceptional shock-load applications (primary autogenous-mill main drives, large-vessel main-shaft auxiliaries), cast-steel ZG270-500 variant is documented and available under engineering review with 8-week lead time. Each hub at QT500 specification masses approximately 120 kg.<\/p>\n<\/p><\/div>\n

\n

48 mm Hardened Steel Slider<\/h4>\n

48 mm thick induction-hardened 45-steel cross-slider standard; 40Cr alloyed-steel slider with HRC 55 surface for reversal-duty deployments. Hardfaced variant with localised tungsten-carbide deposit is offered for severe abrasive applications. Slider masses approximately 32 kg with pre-machined lifting-eyelet provisions standard for hoist-supported field service.<\/p>\n<\/p><\/div>\n

\n

Heavy Taper-Bushed Mounting<\/h4>\n

Taper-bushed mounting via heavy-duty locking-assembly families (Trantorque GT-Heavy, RINGFEDER 7012 large-bore series, KTR-Clampex 200 series). The 160 mm bore plus 240 mm hub-bore-diameter envelope accommodates standard heavy-bore locking assemblies without secondary machining. Engineering-supplied installation drawings cover bush placement, torque sequence, and locking-assembly retention verification.<\/p>\n<\/p><\/div>\n<\/div>\n

Engineering at the Major Mill \/ Marine Scale<\/h3>\n

The SL360 occupies a specific engineering niche between SL340 (20 000 N\u00b7m, primary-mill auxiliary) and SL400 (38 700 N\u00b7m, ship-propulsion-class auxiliary). Equipment in this niche shares three engineering characteristics: high steady-state torque with substantial routine shock-load events, very long expected service life (typically 25\u201330 years), and operational consequences of failure that include not just lost production but downstream equipment damage and multi-day restart sequences. The selection criterion at this scale is therefore dominated by failure-mode predictability and lifecycle-cost analysis over the full asset-ownership horizon.<\/p>\n

The SL360 succeeds in this engineering frame through structural advantages that map onto each concern. QT500\/QT600 hub material with engineered 3\u00d7 safety factor against rated torque addresses shock-load endurance over decades. Gradual wear of the inspectable steel slider \u2014 rather than catastrophic failure of an energy-storing component \u2014 addresses failure-mode predictability. Field-replaceable slider plates that align with major plant or vessel overhaul cycles address maintenance-economics evaluation. And the 30-year part-availability commitment that Ever-power offers for slider plates and consumables addresses the spare-parts-supply question that often dominates major-equipment specification reviews at this scale.<\/p>\n

For broader engineering discussion of major mill and marine-class coupling selection, see Ever-power’s major-equipment engineering portal<\/a>.<\/p>\n

\"SL360<\/p>\n

Industry Applications<\/h3>\n
\n
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\u26f0\ufe0f<\/span> Major Mineral-Mill Main Drives<\/h4>\n

Main-drive input couplings on major SAG and autogenous mills in primary minerals-concentration operations. Substantial misalignment envelope handles the large-mill-shell deflection profile under loaded operation.<\/p>\n<\/p><\/div>\n

\n

<\/span> Ship-Propulsion Auxiliary Lines<\/h4>\n

Major auxiliary drive lines on large commercial vessels \u2014 bow-thruster main, stern-thruster main, main-shaft brake and lock-mechanisms. QT600 cast-steel hubs resist saltwater ambient and absorb propulsion-system shock events.<\/p>\n<\/p><\/div>\n

\n

<\/span> Major Cement-Kiln Main<\/h4>\n

Drive coupling between motor and main reduction-input of large cement-kiln rotating-section drives in major-capacity plants. Misalignment tolerance handles kiln-shell thermal expansion across long burner-zone temperature gradients.<\/p>\n<\/p><\/div>\n

\n

<\/span> Major Steel-Plant Drives<\/h4>\n

Hot-strip-mill stand-drive auxiliary, continuous-caster main-cooling pump, and finishing-train main-auxiliary drives. Elevated-temperature ambient tolerance through synthetic-grease specification.<\/p>\n<\/p><\/div>\n

\n

\u26a1<\/span> Major Power-Station Main<\/h4>\n

Main boiler-feed pump and main condenser-cooling pump drives on major thermal-power-station infrastructure. Long-cycle reliability across the 30+ year design life of power-plant assets.<\/p>\n<\/p><\/div>\n

\n

\u2693<\/span> Heavy Marine Cranes & Winches<\/h4>\n

Main slewing and luffing drives on major shipyard heavy-lift cranes and offshore-supply vessel anchor-handling winches. Substantial shock-load capacity addresses crane-indexing and anchor-deployment events.<\/p>\n<\/p><\/div>\n<\/div>\n

Why Choose Ever-power<\/h3>\n
\n

Quality & Compliance<\/h4>\n

SL360 production runs under ISO 9001:2015<\/strong> with full melt-traceability per cast-iron, ductile-iron, and cast-steel heat. Documentation pack covers RoHS<\/strong>, REACH<\/strong>, CE<\/strong> conformity, comprehensive FMEA documentation, and 30-year fatigue-endurance analysis. For marine customers, supplementary Lloyd’s Register, DNV-GL, or ABS type-approval can be supported through engineering review. For mining customers, supplementary shock-load profile compatibility and SAG\/AG-mill duty-cycle analysis is available.<\/p>\n

Customisation<\/h4>\n

Catalogue bore 160 mm; custom-bore variants from 150 mm to 170 mm produced under engineering review with 4-week lead-time premium. QT500-7 standard, QT600-3 engineering-preferred, ZG270-500 cast-steel for ultra-aggressive applications. Heavy-bore taper-bushed mounting via standard locking-assembly families. Hardfaced slider variant for severe-abrasive deployments.<\/p>\n

Major-Capital-Equipment Aftermarket<\/h4>\n

SL360 slider plates and alloy variants stocked for 2-business-day shipment. Mass per coupling 258 kg; sea-freight in heavy-duty welded-steel transport cradle with secondary shock-absorbing internal packaging. English-speaking engineering desk responds within 24 hours<\/strong>. 30-year part-availability commitment for slider plates and consumables \u2014 covering the full design-life of major capital-equipment installations.<\/p>\n<\/div>\n

\"Ever-power<\/p>\n

Customer Reviews & Case Studies<\/h3>\n
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\u2605\u2605\u2605\u2605\u2605<\/p>\n

Dominican Republic \u2014 Gold-Mining Operator<\/h4>\n

Used in:<\/em> Primary SAG-mill main-drive coupling on a major gold-mining concentrator plant.<\/p>\n

Feedback:<\/em> “Specified the SL360 with QT600-3 cast-steel hubs after detailed reliability-engineering review against gear-coupling and disc-pack-spacer alternatives. Eight years of three-shift continuous duty with one slider replacement during a major mill reline shutdown. The 30-year part-availability commitment was a meaningful factor in our capital-equipment specification approval. Excellent senior-engineered specification across the entire service window.”<\/p>\n<\/p><\/div>\n

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\u2605\u2605\u2605\u2605\u2605<\/p>\n

Jamaica \u2014 Bauxite-Refining Operation<\/h4>\n

Used in:<\/em> Primary digester-mixer main-drive coupling on a bauxite-refining alumina plant.<\/p>\n

Feedback:<\/em> “Continuous-process duty with significant chemical-process ambient (caustic-soda exposure) and elevated temperatures. The SL360 with QT500 hubs, synthetic-grease specification, and IP54 sealed coupling guard has handled 6 years of continuous duty without unplanned events. Maintenance crew describes this as the most predictable coupling in the entire plant \u2014 wear profile is exactly as the engineering documentation predicted.”<\/p>\n<\/p><\/div>\n

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\u2605\u2605\u2605\u2605\u2606<\/p>\n

Honduras \u2014 Sugar & Ethanol Integrated Mill<\/h4>\n

Used in:<\/em> Cane-shredder primary-drive coupling on a 6 000 t\/d sugar-and-ethanol integrated mill.<\/p>\n

Feedback:<\/em> “Cane-shredder duty includes intermittent rock-and-foreign-object impact events that catastrophically fail most flexible-coupling architectures. The SL360 with QT600-3 cast-steel hubs and 40Cr alloy slider has now passed 7 years of seasonal duty with one slider replacement. Knock one star only because emergency-replacement protocol to our inland location during one urgent event took 8 working days \u2014 the protocol commits to 5 working days but our remote inland geography extended this. Otherwise outstanding.”<\/p>\n<\/p><\/div>\n<\/div>\n

Frequently Asked Questions<\/h3>\n
\nWhy does grease repack interval drop to 4 months at SL360 size?<\/summary>\n

At higher slider mass and substantial sliding-velocity at routine misalignment, grease degradation accelerates relative to smaller SL family members. The 4-month repack interval (versus 6 months for SL210\u2013SL340) maintains the lubrication-film integrity that is essential for the substantial slider-face surface area at this size. With synthetic high-performance grease the interval can be extended to 6 months \u2014 please specify at order entry.<\/p>\n<\/details>\n

\nWhat does the 30-year part-availability commitment cover?<\/summary>\n

Ever-power commits to 30-year availability of replacement slider plates and consumables (clamp screws, grease-fitting hardware) for the SL360 from the production-launch date of the host customer’s major capital equipment. Complete-coupling availability is committed for 15 years; beyond that, Ever-power supplies engineering documentation supporting third-party replacement-coupling manufacture under licence. The commitment is documented in the standard customer-supply agreement.<\/p>\n<\/details>\n

\nCan the SL360 be type-approved for marine class?<\/summary>\n

Yes \u2014 through engineering review, Ever-power can support Lloyd’s Register, DNV-GL, ABS, or other marine-class type-approval applications for SL360 deployments in commercial-vessel installations. Documentation includes material certificates, dimensional inspection records, FMEA analysis, and shock-load performance verification. Type-approval lead time is typically 12 weeks beyond standard coupling delivery; cost depends on specific class-society fee schedule.<\/p>\n<\/details>\n

\nHow is the SL360 transported internationally?<\/summary>\n

At 258 kg, sea-freight in heavy-duty welded-steel transport cradle is the standard logistics mode. Cradle masses approximately 65 kg empty; gross shipping mass is 323 kg. Internal packaging includes shock-absorbing foam and moisture-barrier wrapping. For consolidated multi-coupling shipments, palletised cradle arrangements are supported. Air-freight is available for emergency replacement at substantial cost premium and requires advance arrangement of ground-handling equipment at the destination.<\/p>\n<\/details>\n

\nIs integrated equipment-design support available for OEM partners?<\/summary>\n

Yes. For OEM partners specifying SL360 in major capital-equipment designs (mineral mills, marine vessels, power stations), Ever-power offers integrated design-support including coupling-housing CAD models, weight-and-balance reports for equipment FEA models, vibration-source contribution analysis for plant noise-and-vibration studies, and pre-installation alignment-procedure documentation. Support level scales with annual partnership volume; please consult sales for programme terms.<\/p>\n<\/details>\n

Quote SL360 for Major Capital-Equipment Drives<\/h3>\n

For major minerals-mill main, ship-propulsion auxiliary, major cement-kiln main, and major power-station-auxiliary applications in the 340 kW slow-speed band, the SL360 is Ever-power’s senior-engineered specification of choice. Browse the wider SL series catalogue<\/a>, read about Ever-power’s major-capital-equipment supply capability<\/a>, or move directly to a B2B enquiry below.<\/p>\n

\n Quote SL360 Now \u2192<\/a>\n<\/p>\n