{"id":1795,"date":"2026-03-12T02:13:25","date_gmt":"2026-03-12T02:13:25","guid":{"rendered":"https:\/\/gear-racks.com\/?post_type=product&p=1795"},"modified":"2026-03-16T03:18:54","modified_gmt":"2026-03-16T03:18:54","slug":"ground-helical-gear-racks-for-sale","status":"publish","type":"product","link":"https:\/\/gear-racks.com\/it\/product\/ground-helical-gear-racks-for-sale\/","title":{"rendered":"Cremagliere a ingranaggi elicoidali rettificate in vendita"},"content":{"rendered":"
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PRECISION MOTION ENGINEERING \u00b7 UNITED KINGDOM<\/p>\n

Ground Helical Gear Racks for CNC Machine Tools<\/span> and Industrial Automation<\/h2>\n

Precision-ground helical gear racks engineered for UK manufacturing \u2014 delivering low noise, high load capacity, and repeatable accuracy across demanding industrial environments.<\/p>\n

Richiedi un preventivo \u2192<\/a>
\nsales@gear-racks.com \u00b7 Fast UK B2B Response<\/span><\/div>\n<\/div>\n<\/section>\n

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\"portautensili\"In the world of precision motion control, few components carry as much engineering responsibility as the ground helical gear rack. Across British manufacturing plants, aerospace facilities, and automated distribution centres, these deceptively robust components serve as the backbone of reliable, repeatable linear motion. Unlike their spur-rack counterparts, ground helical gear racks feature teeth cut at a specific helix angle, meaning load is distributed across multiple tooth flanks simultaneously. The result is a smoother engagement, dramatically reduced acoustic signature, and the kind of sustained load-carrying performance that today’s demanding industrial environments require. Whether you are specifying a new CNC machining centre in the West Midlands, upgrading a gantry robot on a Scottish production line, or procuring precision motion components for a defence-grade aerospace assembly rig, understanding how helical gear racks work \u2014 and how to choose the right specification \u2014 is fundamental to achieving the performance outcomes your project demands.<\/p>\n

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Richiedi un preventivo personalizzato<\/a><\/div>\n<\/div>\n<\/section>\n

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How Ground Helical Gear Racks Work<\/h2>\n

The operating principle behind a ground helical gear rack is elegantly straightforward. When a mating helical pinion gear rotates, its angled teeth engage progressively with the rack’s helical tooth flanks rather than making sudden full-width contact. This graduated meshing action \u2014 where the contact zone moves diagonally across the tooth face \u2014 is precisely why helical racks generate so much less vibration and noise than standard spur racks. The mechanics transform rotary input torque into clean, consistent linear displacement at a ratio governed entirely by the rack’s module (the standardised relationship between pitch circle diameter and tooth count).<\/p>\n

What makes ground helical gear racks particularly valuable in high-precision applications is the manufacturing process itself. The grinding of the tooth profile \u2014 as opposed to simple hobbing or milling \u2014 produces tooth flanks with surface roughness values typically below Ra 0.4 \u00b5m. This geometric accuracy reduces positional deviation across the full travel length and is essential when specifying components for CNC machine tools where sub-millimetre repeatability directly impacts part quality. The helix angle also introduces an axial thrust force component, so proper bearing selection at the pinion shaft becomes a critical element of any well-designed system.<\/p>\n

Lubrication plays an equally vital role. Because helical teeth maintain sliding contact across a longer engagement arc, adequate film thickness \u2014 typically achieved with an ISO VG 220 or VG 320 gear oil, or a compatible high-load grease \u2014 protects both rack and pinion from adhesive wear. Well-maintained lubrication intervals are one of the simplest ways to extend service life beyond 10,000 operational hours in continuous-duty installations.<\/p>\n<\/section>\n

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Technical Specifications at a Glance<\/h2>\n

The table below summarises the core technical parameters typically available across our standard and custom ground helical gear rack range. All specifications can be modified to suit bespoke UK project requirements.<\/p>\n

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Parametro<\/th>\nGamma standard<\/th>\nNote<\/th>\n<\/tr>\n<\/thead>\n
Modulo (m)<\/td>\n1 \u2013 10<\/td>\nModuli personalizzati disponibili su richiesta.<\/td>\n<\/tr>\n
Helix Angle<\/td>\n15\u00b0 \/ 19\u00b031′ \/ 20\u00b0 \/ 25\u00b0<\/td>\nMust match mating pinion specification<\/td>\n<\/tr>\n
Profilo del dente<\/td>\nDIN 867 \/ ISO 53<\/td>\n20\u00b0 pressure angle standard<\/td>\n<\/tr>\n
Grado di precisione<\/td>\nDIN 6 \u2013 DIN 4 (ground)<\/td>\nDIN 4 for high-precision CNC<\/td>\n<\/tr>\n
Materiale<\/td>\nC45 Steel, 42CrMo4, 304 \/ 316 SS<\/td>\nStainless steel for corrosive environments<\/td>\n<\/tr>\n
Durezza superficiale<\/td>\n58 \u2013 62 HRC (induction \/ case hardened)<\/td>\nCore remains tough<\/td>\n<\/tr>\n
Lunghezze standard<\/td>\n500 mm \u2013 3000 mm per bar<\/td>\nSplicing kits for extended travel<\/td>\n<\/tr>\n
Tooth Surface Roughness<\/td>\nRa \u2264 0.4 \u00b5m (ground finish)<\/td>\nReduces friction and noise significantly<\/td>\n<\/tr>\n
Mounting<\/td>\nBolt-on (drilled \/ tapped), clamp-type<\/td>\nCustom bolt patterns available<\/td>\n<\/tr>\n
Gioco<\/td>\n\u2264 0.015 mm (DIN 4 grade)<\/td>\nCritical for positioning accuracy<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n
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Material, Surface Treatment, and Quality<\/h2>\n

\"portautensili\"<\/p>\n

The material specification of a ground helical gear rack is not a secondary consideration \u2014 it is the single greatest determinant of operational lifespan. Standard carbon steel grades such as C45 provide a cost-effective solution for moderate-load, ambient-environment applications. For heavy-duty industrial installations where contact stresses are high, alloy steels such as 42CrMo4 (equivalent to EN19 in UK nomenclature) deliver the through-hardenability and fatigue resistance needed to sustain millions of load cycles without surface pitting or sub-surface crack propagation.<\/p>\n

Surface treatment is equally important. Induction hardening of the tooth flanks to 58\u201362 HRC while preserving a tough core is the industry standard for heavy-load ground helical gear racks. This combination \u2014 hard surface, tough core \u2014 resists both abrasive wear at the contact zone and shock loads transmitted through the drive train. For environments involving moisture, cleaning chemicals, or washdown cycles (common in UK food processing and pharmaceutical production), 304 or 316 austenitic stainless steel grades offer corrosion resistance without sacrificing the structural integrity required for functional gear tooth geometry.<\/p>\n

Anti-corrosion coatings such as zinc-nickel plating or hard chrome are also applied to carbon steel racks operating in moderately humid UK industrial environments. These treatments extend service intervals and reduce total lifecycle cost \u2014 a consideration that procurement teams in UK engineering businesses increasingly factor into their total-cost-of-ownership calculations when specifying motion components.<\/p>\n<\/section>\n

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Key Performance Advantages<\/h2>\n
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LOW NOISE OPERATION<\/h4>\n

Gradual helical engagement reduces impact noise by up to 8 dB compared to spur gear racks<\/p>\n<\/div>\n

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HIGHER LOAD CAPACITY<\/h4>\n

Multi-tooth contact distributes force, increasing allowable tangential load significantly<\/p>\n<\/div>\n

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GROUND PRECISION<\/h4>\n

DIN 4 tooth accuracy enables positioning repeatability below 0.015 mm over full travel<\/p>\n<\/div>\n

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LONG SERVICE LIFE<\/h4>\n

Case-hardened tooth flanks and ground surface finish extend operational life beyond 10,000 hours<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Selecting the Right Ground Helical Gear Rack for Your Application<\/h2>\n

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Specifying a ground helical gear rack correctly requires a systematic approach that accounts for both the mechanical demands of the application and the operational context in which the component will function. The starting point is always load analysis \u2014 not just the static weight of whatever is being moved, but the dynamic inertial forces during acceleration and deceleration cycles, any external loads such as cutting forces in machine tool applications, and the safety factor required for your industry. In UK industrial practice, a minimum safety factor of 1.5 on rated dynamic load is typically recommended, rising to 2.0 or higher for safety-critical applications in aerospace or rail.<\/p>\n

Module selection follows naturally from load and speed analysis. Higher module numbers produce physically larger, stronger teeth capable of handling greater tangential forces, but at the cost of resolution \u2014 the linear displacement per pinion revolution increases. For many UK machine tool builders specifying CNC axis drives, module 2 or module 3 racks paired with appropriately sized servo-driven pinions represent the optimal balance between load capacity and positional resolution. Where travel speeds exceed 100 m\/min \u2014 common in gantry crane and ASRS applications \u2014 higher module selections and precision-ground tooth geometry become even more critical to suppressing vibration at elevated engagement frequencies.<\/p>\n

Do not overlook the mounting interface. A precision-ground cremagliera degli ingranaggi<\/a> is only as accurate as the surface it is mounted on. Machined reference faces on the host machine structure, combined with proper dowel pin location and controlled torque settings on mounting fasteners, are what actually realise the tooth accuracy grade you have specified. Our engineering team provides mounting guidance as standard with all custom and standard orders shipped to UK customers.<\/p>\n<\/section>\n

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Customer Success: Precision Engineering in Action<\/h2>\n

Real results from manufacturers, systems integrators, and OEMs who trust our ground helical gear racks in production-critical applications.<\/p>\n

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CASE STUDY<\/div>\n

West Midlands CNC Manufacturer \u2014 Horizontal Machining Centre Upgrade<\/span><\/p>\n<\/div>\n

A mid-size precision engineering business near Coventry producing aerospace structural components was experiencing unacceptable positioning drift on the Y-axis of three horizontal machining centres. The original spur gear racks, installed at commissioning, had developed measurable pitch deviation and excessive backlash after four years of three-shift operation. The customer contacted us seeking a direct replacement that would restore axis accuracy without requiring a full servo tuning re-commission.<\/p>\n

We supplied DIN 4 grade, module 3, 20\u00b0 helix angle ground helical gear racks in 42CrMo4, induction hardened to 60 HRC, with matching precision pinions. Post-installation measurement confirmed backlash below 0.012 mm and pitch deviation within \u00b10.008 mm over 2.4 m travel \u2014 well within the machine builder’s original specification. The customer subsequently upgraded all five of their machining centres to the same standard.<\/p>\n

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\u00b10.008 mm<\/div>\n
Pitch deviation over 2.4 m<\/div>\n<\/div>\n
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< 0.012 mm<\/div>\n
Backlash achieved<\/div>\n<\/div>\n
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5 machines<\/div>\n
Upgraded in total<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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“We specified DIN 4 ground helical racks for a new 5-axis gantry router we build for the UK composites market. The geometric accuracy is exactly as stated \u2014 we have not had a single customer complaint about axis positioning since switching to this supplier. Lead time to UK delivery was also better than expected.”<\/p>\n

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James Whitfield<\/div>\n
Engineering Director \u2014 OEM Machine Builder, Sheffield<\/div>\n<\/div>\n<\/div>\n
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\u2605\u2605\u2605\u2605\u2605<\/div>\n

“Our pharmaceutical dispensing robot required 316 stainless helical racks to survive CIP washdown cycles. The team provided full material certification, dimensional reports, and custom mounting hole patterns. Exactly what our validation documentation required. The price was competitive and the quality was flawless.”<\/p>\n

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Dr. Sarah Patel<\/div>\n
Lead Automation Engineer \u2014 Pharma OEM, Cambridgeshire<\/div>\n<\/div>\n<\/div>\n
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“Sourcing high-module helical racks for our ASRS shuttle system in our new Manchester distribution centre was a challenge with other suppliers. This company handled the full custom design \u2014 length, drilling pattern, surface treatment \u2014 with a turnaround that kept our commissioning schedule on track. Outstanding technical support.”<\/p>\n

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Tom Ashworth<\/div>\n
Projects Manager \u2014 Logistics Systems Integrator, Greater Manchester<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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Custom Manufacturing and Our Factory Capability<\/h2>\n
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Our manufacturing facility operates CNC gear grinding machines, CNC hobbing centres, and multi-axis machining equipment capable of producing custom ground helical gear racks from prototype through to high-volume production runs. Every rack leaves our factory accompanied by a dimensional inspection report and, where specified, full material certification including chemical composition and mechanical property data \u2014 documents that UK buyers working in regulated industries such as aerospace, defence, rail, and pharmaceuticals require as a matter of course.<\/p>\n

Custom design is a core strength, not an afterthought. Our application engineers work directly with UK OEMs, machine builders, and systems integrators to develop bespoke ground helical gear rack solutions that address specific requirements around module, helix angle, length, mounting configuration, material grade, surface treatment, and accuracy class. We also manufacture matching custom pinions, so clients can source a fully validated rack-and-pinion drive set from a single point of technical accountability. This is particularly valuable for UK engineering businesses that need full dimensional compliance documentation for machine CE marking under the UK Machinery Directive.<\/p>\n

Get a Custom Quote \u2014 sales@gear-racks.com<\/a><\/div>\n<\/section>\n

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Types of Ground Helical Gear Rack \u2014 Quick Comparison<\/h2>\n
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Tipo<\/th>\nBest For<\/th>\nKey Advantage<\/th>\nTypical UK Industry<\/th>\n<\/tr>\n<\/thead>\n
Helix-tooth Ground Rack<\/td>\nCNC, robotics, printing<\/td>\nOptimal contact, low noise<\/td>\nPrecision engineering, OEM<\/td>\n<\/tr>\n
Modular Ground Rack<\/td>\nMachine tools, general machinery<\/td>\nEasy interchangeability<\/td>\nManufacturing, automotive<\/td>\n<\/tr>\n
Stainless Steel Rack<\/td>\nFood, pharma, cleanroom<\/td>\nCorrosion resistance<\/td>\nLife sciences, food processing<\/td>\n<\/tr>\n
Hardened Ground Rack<\/td>\nASRS, aerospace, heavy plant<\/td>\nMaximum wear resistance<\/td>\nLogistics, defence, aerospace<\/td>\n<\/tr>\n
Custom Ground Rack<\/td>\nSpecialist machinery<\/td>\nTailored to exact spec<\/td>\nAny sector, bespoke projects<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n

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Domande frequenti<\/h2>\n

Common questions from UK engineers and procurement teams specifying ground helical gear racks.<\/p>\n

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\nWhat is the difference in price between a standard spur gear rack and a ground helical gear rack for a CNC machine tool application in the UK?
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Ground helical gear racks typically command a premium of 30\u201360% over equivalent spur rack specifications, reflecting the additional grinding operations, tighter dimensional tolerances, and more complex tooth geometry involved. For a UK CNC machine tool application, however, the total cost of ownership frequently favours helical racks: longer service intervals, reduced noise (which matters for employee wellbeing compliance under UK HSE guidance), and superior positional accuracy that reduces scrap rates often offset the higher initial cost within 12\u201318 months. To get an accurate price for your specific module, accuracy grade, and length requirements, contact us at sales@gear-racks.com for a tailored quote.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

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\nHow do I find a reliable ground helical gear rack supplier in the UK who can provide custom lengths and bespoke mounting configurations?
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When sourcing custom ground helical gear racks for UK industrial projects, look for suppliers who can provide dimensional inspection reports, full material certification (including EN 10204 3.1 or 3.2 certificates for regulated industries), and application engineering support. The ability to manufacture custom lengths beyond 3000 mm \u2014 using precision-spliced rack sections \u2014 is also important for long-travel gantry and ASRS applications. We serve UK buyers directly with fast quotation turnaround, custom design capability, and documentation packages suited to CE marking compliance. Send your specification to sales@gear-racks.com and our engineers will respond within one working day.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

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\nWhich DIN accuracy grade should I specify for a ground helical gear rack used on the linear axis of an aerospace precision jig in the UK?
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For aerospace precision jig applications requiring sub-0.02 mm positional repeatability over full travel, DIN 4 is the standard accuracy grade to specify. DIN 4 ground helical gear racks have tooth profile deviation below 6 \u00b5m and pitch deviation typically within \u00b18 \u00b5m per 1000 mm, making them suitable for aerospace assembly fixtures, wing jig drives, and other safety-critical positioning applications. DIN 5 or DIN 6 grades are appropriate for general industrial automation where positioning tolerances of 0.02\u20130.05 mm are acceptable. Our engineering team can advise on the most cost-effective grade for your specific aerospace application \u2014 contact us at sales@gear-racks.com.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

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\nHow often should I replace the gear rack on a UK food processing conveyor system where stainless steel helical racks are used in washdown environments?
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In a food processing washdown environment using 316 stainless steel ground helical gear racks with food-grade lubrication, typical service life ranges from 8,000 to 15,000 operational hours depending on load intensity, cycle rate, and the effectiveness of the lubrication programme. Key inspection indicators include measurable tooth profile wear (use a gear inspection gauge), increased backlash beyond 0.05 mm, or visible surface pitting. UK food manufacturers operating under BRC or FSSC 22000 certification should include gear rack inspection in their documented planned preventive maintenance programme. We can supply direct replacement racks to match any existing specification.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

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\nWhere can I get a ground helical gear rack and pinion set custom-made to my drawings for a new robotics project based in the UK Midlands?
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We manufacture custom ground helical gear rack and pinion sets built to customer drawings or application data sheets. For UK Midlands robotics projects, simply email your dimensional drawing (DXF, STEP, or PDF format), your rack module, helix angle, required accuracy grade, material specification, and production quantity to sales@gear-racks.com. Our engineers will review your specification, confirm compatibility between the rack and pinion geometry, and return a detailed quotation. Custom prototypes are typically available within 3\u20134 weeks, with production lead times confirmed at the quotation stage. We have supplied custom rack-and-pinion sets to robotics integrators across the West Midlands, Yorkshire, and Scotland.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

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\nWhat lubricant should I use for a ground helical gear rack on a high-speed gantry crane in a UK logistics warehouse running three shifts?
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For a high-speed gantry crane application in a UK warehouse running three-shift operations, an NLGI 1 or NLGI 2 high-adhesion lithium complex grease with extreme pressure (EP) additives is the standard recommendation. The adhesion properties prevent lubricant fling-off at elevated speeds while the EP additives protect tooth flanks during the high-contact-stress conditions typical in crane drive systems. Auto-lubrication systems with metered grease dispensers are strongly recommended for high-cycle, multi-shift applications \u2014 they maintain consistent film thickness without depending on manual lubrication intervals. Consult the rack manufacturer’s technical data sheet for minimum relubrication intervals based on your specific travel speed and load profile.<\/p>\n<\/div>\n<\/details>\n<\/div>\n<\/section>\n

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Ready to Specify Your Ground Helical Gear Rack?<\/h2>\n

Our application engineers are ready to help UK manufacturing businesses, OEMs, and systems integrators select or design the right ground helical gear rack solution. From standard catalogue items to fully bespoke rack-and-pinion drive sets \u2014 get in touch today.<\/p>\n

Richiedi un preventivo \u2014 sales@gear-racks.com<\/a><\/p>\n

UK B2B enquiries welcome \u00b7 Fast response \u00b7 Custom design available \u00b7 Material certification supplied | edit by gzl<\/p>\n<\/section>\n

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Precision-ground helical gear racks for CNC machine tools and industrial automation, featuring multi-tooth contact, low noise, and high load capacity. Manufactured from C45 steel, 42CrMo4, or stainless steel, they deliver reliable, long-lasting performance in demanding applications.<\/p>","protected":false},"featured_media":1847,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[4276],"product_tag":[],"class_list":{"0":"post-1795","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-gear-racks","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/gear-racks.com\/it\/wp-json\/wp\/v2\/product\/1795","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gear-racks.com\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/gear-racks.com\/it\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/gear-racks.com\/it\/wp-json\/wp\/v2\/comments?post=1795"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gear-racks.com\/it\/wp-json\/wp\/v2\/media\/1847"}],"wp:attachment":[{"href":"https:\/\/gear-racks.com\/it\/wp-json\/wp\/v2\/media?parent=1795"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/gear-racks.com\/it\/wp-json\/wp\/v2\/product_brand?post=1795"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/gear-racks.com\/it\/wp-json\/wp\/v2\/product_cat?post=1795"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/gear-racks.com\/it\/wp-json\/wp\/v2\/product_tag?post=1795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}