{"id":1962,"date":"2026-07-21T07:40:03","date_gmt":"2026-07-21T07:40:03","guid":{"rendered":"https:\/\/gearrack.top\/?p=1962"},"modified":"2026-07-21T07:40:03","modified_gmt":"2026-07-21T07:40:03","slug":"ring-gears-for-automotive-applications","status":"publish","type":"post","link":"https:\/\/gearrack.top\/it\/ring-gears-for-automotive-applications\/","title":{"rendered":"Ring Gears for Automotive Applications"},"content":{"rendered":"
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GEAR APPLICATION GUIDE \u00b7 RING GEAR \u00b7 R04<\/span><\/p>\n

Ring Gears for Automotive Applications:
\nFlywheel Ring Gears, Differential Ring Gears and EV Planetary Drives<\/span><\/h1>\n

Automotive ring gears appear in three functionally distinct roles in a vehicle drivetrain \u2014 the flywheel ring gear (the external-tooth ring that the starter motor pinion engages to crank the engine), the differential ring gear (the large bevel ring gear in the axle differential that divides torque between the left and right drive wheels), and the planetary set ring gear in automatic transmissions and electric vehicle single-speed reducers. Each role has a specific material, tooth form, heat treatment, and quality specification, and each must be understood separately to correctly specify aftermarket replacement parts or to design new automotive powertrain components. This guide covers all three automotive ring gear applications with detailed engineering specifications for commercial vehicle, passenger car, and EV drivetrain contexts.<\/p>\n

20CrMnTi \u00b7 8620H \u00b7 9310 \u00b7 M4\u2013M12 \u00b7 DIN 5\u20138<\/span>
\nFlywheel \u00b7 Differential \u00b7 EV Planetary \u00b7 AGM Compat.<\/span>
\nCommercial Vehicle \u00b7 Passenger Car \u00b7 BEV \u00b7 OEM<\/span><\/div>\n<\/div>\n<\/div>\n
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FLYWHEEL RING<\/p>\n

M4 \u2013 M7<\/p>\n

Flywheel ring gear module range. Passenger car (1,000\u20132,000 cc): M4\u2013M5 (OD 220\u2013300 mm). Light commercial (2.5\u20134 litre diesel): M5\u2013M6 (OD 320\u2013400 mm). Heavy truck (6\u201313 litre diesel): M6\u2013M7 (OD 420\u2013550 mm). Tooth form: straight external spur. Material: 42CrMo4 QT or C45, OD induction hardened for starter pinion engagement<\/p>\n<\/div>\n

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DIFFERENTIAL RING<\/p>\n

Hypoid Bevel<\/p>\n

Automotive differential ring gear tooth form: hypoid bevel (offset pinion axis, enabling a lower propeller shaft tunnel height vs spiral bevel). Module: equivalent face module m_e = 4\u20138 for passenger car, 6\u201312 for truck axle. Material: 8620H or SAE 9310 case carburized, shot peened, superfinished. Lapping to achieve \u2264 0.4 \u03bcm surface roughness on both tooth flanks<\/p>\n<\/div>\n

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EV PLANETARY RING<\/p>\n

M3 \u2013 M8<\/p>\n

BEV (battery electric vehicle) single-speed planetary reducer ring gear module range. Small EV (100\u2013200 kW motor): M3\u2013M5, OD 180\u2013280 mm. Mid-size EV (200\u2013400 kW): M5\u2013M7, OD 250\u2013380 mm. Heavy EV truck (400+ kW): M6\u2013M8, OD 350\u2013480 mm. Material: 20CrMnTi or 8620H case carburized, DIN 5\u20136 ground. Noise (NVH) requirement \u2264 65 dB(A) in vehicle interior<\/p>\n<\/div>\n

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NVH STANDARD<\/p>\n

\u2264 65 dB(A)<\/p>\n

Interior NVH (Noise, Vibration, and Harshness) target for EV drivetrain ring gears. The EV drivetrain operates without the combustion engine noise that masked gearbox noise in ICE vehicles \u2014 any gear mesh tone above 65 dB(A) in the vehicle interior at road speed is immediately audible and customer-perceptible. DIN 5 ground, superfinished internal ring gear is the baseline for achieving this target<\/p>\n<\/div>\n<\/div>\n

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Automotive Ring Gear Engineering \u2014 Three Applications, Three Specifications<\/h2>\n

The three automotive ring gear applications differ not only in their engineering specifications but in the nature of the loads they carry and the failure consequences they face. The flywheel ring gear sees brief, high-impact loads every time the starter motor cranks the engine \u2014 the starter pinion impacts the flywheel ring teeth at engagement, producing a shock load significantly higher than the nominal cranking torque. The differential ring gear carries the full wheel drive torque of the vehicle continuously, including the severe overloads of wheel spin recovery on wet or icy road surfaces. The EV planetary ring gear is subject to the NVH scrutiny described above, but also to new operating conditions unprecedented in ICE vehicle transmissions \u2014 the EV ring gear must accept the full motor torque in both directions equally (regenerative braking produces the same torque as acceleration in the opposing rotational direction), and it must survive 1\u20132 million kilometres of continuous vehicle operation without measurable tooth wear increase.<\/p>\n

Korea Ever-Power’s automotive ring gears<\/a> are manufactured across all three application types \u2014 flywheel ring gears in 42CrMo4 QT with induction hardened tooth surfaces for the aftermarket commercial vehicle sector, differential hypoid ring gears in 8620H or 20CrMnTi case carburized and lapped for the truck and commercial vehicle differential replacement market, and EV planetary ring gears in 20CrMnTi or 8620H case carburized with DIN 5 ground internal teeth for electric vehicle drivetrain OEM and Tier 1 supplier applications. The EV ring gear represents the most technically demanding automotive ring gear application and the fastest-growing market segment \u2014 Korean and Chinese EV manufacturers are currently the most active customers for Korea Ever-Power EV drivetrain ring gears, with quality and delivery requirements closely aligned with the automotive production cadence of high-volume EV assembly plants.<\/p>\n

The NVH (noise, vibration, and harshness) requirement for EV planetary ring gears represents a step-change in automotive gear quality demands. In an ICE (internal combustion engine) vehicle, the engine combustion noise at 60\u2013100 dB(A) in the vehicle interior effectively masks any gear transmission noise below approximately 75 dB(A) \u2014 the driver and passengers cannot hear the gear noise through the combustion masking. In a BEV (battery electric vehicle), the cabin is acoustically quiet at all speeds \u2014 road noise (30\u201355 dB(A) at typical road speeds) and wind noise (40\u201360 dB(A)) are the dominant sound sources. Any gear mesh tone from the EV drivetrain ring gear above 60\u201365 dB(A) is immediately audible and perceived as a product quality defect. Meeting this NVH target requires DIN 5 ground internal ring gear teeth with tooth-to-tooth pitch error below 4 \u03bcm, individual profile error below 5 \u03bcm, and tooth surface roughness Ra \u2264 0.4 \u03bcm after superfinishing \u2014 a quality level that has no precedent in the ICE automotive differential or manual gearbox sector, where DIN 7\u20138 quality was standard until the EV transition forced the upgrade.<\/p>\n

\"flywheel
Korea Ever-Power 42CrMo4 flywheel ring gear for commercial vehicle and agricultural tractor application \u2014 M6, external spur tooth profile, OD 390 mm, 65 teeth, tooth height 13.5 mm, face width 25 mm. Induction hardened tooth surface HRC 48\u201354, core HB 250\u2013290. Starter motor pinion engagement face (the chamfered leading edge of each tooth) deburred and radiused after induction hardening to prevent starter pinion tip damage at engagement. The ring gear is press-fitted to the flywheel after heating to 180\u2013220\u00b0C \u2014 the thermal expansion from heating increases the ring ID by 0.25\u20130.35 mm, allowing it to slide over the flywheel register OD without the interference fit force that would be required at ambient temperature. Korea Ever-Power flywheel ring gears are dimensioned with a standard interference fit of 0.05\u20130.10 mm on the flywheel register OD to ensure the ring cannot spin relative to the flywheel at the maximum starter torque. Cross-reference supply for Cummins, Caterpillar, John Deere, Weichai, and Yuchai diesel engine flywheel ring gear positions.<\/figcaption><\/figure>\n<\/section>\n
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EV Drivetrain Ring Gear \u2014 Design for NVH and Long Life<\/h2>\n

The EV single-speed planetary reducer is the dominant drivetrain configuration for battery electric vehicles in the 100\u2013500 kW motor power range \u2014 a single planetary stage with ratio 8:1\u201312:1 reduces the electric motor shaft speed (typically 8,000\u201318,000 RPM at maximum power) to the differential input speed (800\u20131,800 RPM). The ring gear in this planetary set is the stationary member, fixed to the EV transaxle housing \u2014 it does not rotate but receives the full reaction torque from the sun gear (driven by the motor) through the planet gears. Because the ring gear is stationary, it does not contribute to the drivetrain NVH through its own rotation, but it does contribute through its tooth mesh compliance \u2014 any elastic deformation of the ring gear under the planet gear tooth load creates a ring oval distortion that modulates the tooth mesh frequency and produces a distinctive \u201cwhine\u201d at vehicle speeds corresponding to the orbital frequency of the planet gears.<\/p>\n

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NVH Design Requirements<\/h3>\n

The EV planetary ring gear NVH specification covers five dimensions: (1) DIN 5 tooth profile and pitch tolerance; (2) Ra \u2264 0.4 \u03bcm tooth surface finish after superfinishing; (3) ring roundness \u2264 15 \u03bcm TIR (to minimise the oval distortion mode of the ring under planet gear loading); (4) bore-to-tooth concentricity \u2264 0.02 mm TIR (to ensure the planet gear load is distributed symmetrically across all planet teeth in contact); and (5) ring gear\u2013to\u2013housing register fit H6\/k5 (transition fit ensuring zero clearance between the ring and housing that would allow micromotion and fretting noise at the interface under load). Korea Ever-Power EV ring gears are individually measured for all five parameters and issued with a dimensional certificate confirming compliance before shipment.<\/p>\n<\/div>\n

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Bidirectional Loading for Regenerative Braking<\/h3>\n

The most significant EV-specific loading difference from ICE transmission gears: the EV ring gear must sustain the full rated torque in BOTH rotation directions \u2014 forward acceleration (motor drives the sun, planet carrier drives the output) and regenerative braking (output is driving, motor is generating, tooth loading reverses direction). In ICE transmissions, the ring gear of an automatic transmission planetary set only carries load in one primary direction \u2014 the reverse side of the tooth flank was only lightly loaded during coastdown. In EV transmissions, the regenerative braking torque can equal 80\u2013100% of the maximum acceleration torque, placing the back-side tooth flank under the same fatigue loading as the drive-side flank. Korea Ever-Power EV ring gears are designed with a symmetric tooth profile (equal thickness on both flanks from root to tip) and fatigue-rated for equal bending stress on both tooth faces at the rated torque.<\/p>\n<\/div>\n

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Material and Process for 1M km Life<\/h3>\n

The 1,000,000 km (1 million km) lifetime requirement for EV drivetrain components (increasingly specified by EV OEMs in their Tier 1 procurement standards) translates to a minimum tooth load cycle count of approximately 3\u20135 \u00d7 10\u2079 at the ring gear mesh \u2014 well above the ISO 6336 long-life (Woehler) endurance limit of 3 \u00d7 10\u2076. Korea Ever-Power EV ring gears use 20CrMnTi case carburized to effective case depth 1.5\u20132.0 mm (for M5\u2013M7 module), shot-peened tooth roots at 200% almen intensity to introduce compressive residual stress below the root fillet (extending the bending fatigue endurance limit by 15\u201325%), and superfinished tooth flanks to Ra \u2264 0.3 \u03bcm (reducing micro-pitting initiation from surface asperity fatigue in the mixed EHL regime during low-speed high-torque operations such as initial vehicle acceleration from rest).<\/p>\n<\/div>\n<\/div>\n

\"EV
Korea Ever-Power 20CrMnTi case carburized EV planetary reducer ring gear \u2014 M5, 80 internal teeth, OD 490 mm, housing register bore 490 mm H6, ring wall thickness 28 mm. Case carburized to effective case depth 1.6\u20132.0 mm, HRC 59\u201362 tooth surface, shot peened roots. Internal teeth profile ground to DIN 5 quality class, then superfinished to Ra \u2264 0.35 \u03bcm. Ring roundness after final grinding: 9 \u03bcm TIR (measured at 48 positions around circumference). Housing register bore concentricity to tooth pitch cylinder: 0.015 mm TIR. 100% MPI of all internal tooth surfaces after carburizing. Suitable for 200\u2013280 kW EV motor single-speed planetary reduction at ratio 10:1. NVH test at sub-assembly level confirms <62 dB(A) at 6,000 RPM input (equivalent to 135 km\/h vehicle speed). Bidirectional tooth loading rated: same fatigue life in both rotation directions for full regenerative braking compatibility. Used by Korea Ever-Power in Tier 1 supply to EV transaxle manufacturers in South Korea and China.<\/figcaption><\/figure>\n
\"Korea
Korea Ever-Power automotive ring gear manufacturing facility \u2014 EV planetary ring gear internal tooth grinding and NVH inspection. The production quality system for automotive EV ring gears at Korea Ever-Power incorporates automotive-grade PPAP (Production Part Approval Process) documentation as standard: material certification, process FMEA (Failure Mode and Effects Analysis), process capability studies (Cpk \u2265 1.67 on all critical dimensions), gauge R&R studies on all measuring equipment used for critical characteristic measurement, initial sample inspection report (ISIR), and control plan with defined reaction plan for out-of-control measurement results. This PPAP documentation package is required by automotive Tier 1 and OEM customers under IATF 16949 (the automotive quality management system standard) before series production approval. Korea Ever-Power is currently in IATF 16949 certification preparation, with automotive EV ring gear customers operating under PPAP-documented supply agreements pending the full certification audit.<\/figcaption><\/figure>\n<\/section>\n
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Frequently Asked Questions \u2014 Automotive Ring Gears<\/h2>\n
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Q 01<\/span><\/p>\n

Our truck fleet is experiencing flywheel ring gear failures at 60,000\u201380,000 km \u2014 well below the expected 300,000 km life. The teeth show chipping at the leading engagement edge. What is causing this?<\/p>\n<\/div>\n

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Flywheel ring gear tooth chipping at the leading engagement edge at 60,000\u201380,000 km is a well-defined failure mode caused by one of three root causes, in order of likelihood: (1) Starter motor pre-engagement or partial engagement:<\/strong> modern pre-engagement starter motors (PMGR starters) are designed to fully engage the pinion with the flywheel ring teeth before the motor reaches cranking speed \u2014 the pinion moves axially into full mesh with the ring gear before torque is applied. If the pre-engagement solenoid is slow or worn, the pinion can begin to rotate before it is fully in mesh, and the spinning pinion tip impacts the leading edge of the ring gear tooth face instead of sliding smoothly along the engagement chamfer. This produces impact chips at the leading edge exactly as described. Solution: inspect the starter motor pre-engagement function \u2014 the pinion should slide fully to mesh with zero rotation before the main motor contacts close. Replace the starter motor if the solenoid response is slow. (2) Ring gear engagement chamfer worn away:<\/strong> if the leading-edge chamfer on the ring gear teeth has been worn flat (from millions of starter engagements), the pinion tip impacts a square edge rather than the chamfer taper that guides smooth entry. Korea Ever-Power replacement flywheel ring gears for commercial vehicles are manufactured with an asymmetric leading-edge chamfer \u2014 45\u00b0 chamfer on the engagement-leading face to guide the starter pinion smoothly into mesh, with a minimal chamfer on the trailing face to avoid reducing the effective tooth thickness. (3) Ring gear material insufficient for AGM start-stop system:<\/strong> modern trucks with 12V AGM battery start-stop systems make 3\u201310 times more engine starts per hour than traditional trucks (which only start at the beginning of the shift) \u2014 the cumulative starter engagements per 100,000 km increase from ~1,500 to ~15,000. If the ring gear material is C45 steel (adequate for traditional start frequency) rather than 42CrMo4 (required for start-stop frequency), tooth chip life will be 80% shorter. Korea Ever-Power supplies 42CrMo4 standard for all commercial vehicle flywheel ring gear replacements \u2014 specify this material when ordering for start-stop system trucks.<\/p>\n<\/div>\n<\/div>\n

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Q 02<\/span><\/p>\n

What is the manufacturing difference between a differential ring gear for a passenger car vs a commercial vehicle, and why can\u2019t they be used interchangeably?<\/p>\n<\/div>\n

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Passenger car and commercial vehicle differential ring gears cannot be interchanged because they differ in five fundamental parameters: (1) Module:<\/strong> passenger car differential ring gear equivalent face module m_e = 4\u20137; commercial vehicle (truck, bus) = 7\u201314. The much larger module for trucks reflects the higher torque loads \u2014 a class 8 truck at 500 Nm wheel torque (per axle at low ratio) requires 3\u20134\u00d7 the tooth bending strength of a passenger car at 150\u2013200 Nm wheel torque. (2) Material and case depth:<\/strong> passenger car uses 8620H case carburized to 0.8\u20131.2 mm effective case depth, adequate for the moderate Hertzian contact stresses of passenger car spiral bevel tooth mesh. Truck uses SAE 9310 or 8620H to 1.5\u20132.5 mm case depth for the higher contact stresses of the larger module and higher torque. SAE 9310 (a nickel-chromium-molybdenum alloy steel) provides higher core impact resistance than 8620H, important for the overload conditions of truck differential operation (kerb impacts, traction recovery). (3) Surface finish:<\/strong> both passenger car and truck differential ring gears are lapped after hobbing and hardening. Lapping (running the ring and pinion together under light load with an abrasive compound) produces a matched contact pattern specific to that ring and pinion pair \u2014 interchanging a ring gear with a different pinion (even of the same part number from the same manufacturer) requires a new lapping operation to establish the correct contact pattern. Always replace differential ring gears in matched sets (ring + pinion) \u2014 never mix. (4) Hypoid offset:<\/strong> the hypoid offset (the vertical distance between the ring gear axis and the pinion axis) varies between manufacturers and axle models \u2014 it affects the tooth spiral geometry and cannot be compensated by adjustment. (5) Contact pattern pre-set:<\/strong> the lapped matched pair is shipped with the correct shim dimensions specified for the ring carrier and pinion depth \u2014 always use these shim dimensions at installation rather than re-establishing the contact pattern from scratch, unless the differential housing has been replaced.<\/p>\n<\/div>\n<\/div>\n

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Q 03<\/span><\/p>\n

Can Korea Ever-Power develop and supply EV planetary ring gears for a new EV transaxle model with a 150,000-piece annual volume requirement?<\/p>\n<\/div>\n

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Korea Ever-Power has the manufacturing capacity and quality system capability to support EV planetary ring gear development and volume supply for new EV transaxle programmes. Our development engagement process for new EV ring gear programmes: (1) Application Engineering (AE) review:<\/strong> Korea Ever-Power\u2019s application engineering team reviews the transaxle design brief \u2014 motor rated and peak torque, ratio, ring gear module and tooth count, NVH target (dB(A) at specific operating points), design life (km or hours), and packaging constraints \u2014 and proposes the ring gear specification (material, case depth, quality class, superfinish level) to meet the requirements. Typical AE review turnaround: 7\u201310 working days. (2) Prototype supply:<\/strong> 10\u201320 prototype ring gears in 30\u201345 days for initial build validation and NVH testing. Prototype ring gears are manufactured to the same process as series production (not machined from bar stock). (3) PPAP Level 3 documentation:<\/strong> Korea Ever-Power prepares the full PPAP Level 3 package for the series production approval \u2014 process flow chart, PFMEA, control plan, measurement system analysis (MSA), initial process study (Cpk \u2265 1.67 on all critical dimensions at prototype quantities), and ISIR with full balloon drawing measurements. PPAP submission: 60\u201390 days after prototype validation and customer drawing approval. (4) Annual capacity for 150,000 pieces:<\/strong> our current EV ring gear line capacity is 200,000\u2013350,000 pieces per year in the M4\u2013M8 size range at OD 200\u2013500 mm \u2014 150,000 pieces per year is within the standard production load. No capacity investment required at this volume. Pricing: volume pricing for 150,000 pieces\/year provides a 35\u201345% reduction from prototype single-piece pricing. Contact Korea Ever-Power\u2019s automotive sales team with the ring gear module, OD, tooth count, and NVH specification for a development proposal and target unit pricing.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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Explore Korea Ever-Power Gear Categories<\/h2>\n

Seven precision gear product lines for automotive, EV drivetrain, commercial vehicle and powertrain applications worldwide.<\/p>\n<\/div>\n

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\"automotive<\/p>\n
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Spur Gears<\/a><\/p>\n

Automotive \u00b7 transmission \u00b7 EV auxiliary<\/p>\n<\/div>\n<\/div>\n

\"helical<\/p>\n
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Helical Gears<\/a><\/p>\n

Transmission \u00b7 diff \u00b7 EV pre-stage<\/p>\n<\/div>\n<\/div>\n

\"hypoid<\/p>\n
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Ingranaggi conici<\/a><\/p>\n

Hypoid \u00b7 differential \u00b7 axle ring&pinion<\/p>\n<\/div>\n<\/div>\n

\"worm<\/p>\n
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Worm Gears<\/a><\/p>\n

Automotive steering \u00b7 EPS \u00b7 actuator<\/p>\n<\/div>\n<\/div>\n

\"ring<\/p>\n
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Ring Gears<\/a><\/p>\n

Flywheel \u00b7 differential \u00b7 EV planetary<\/p>\n<\/div>\n<\/div>\n

\"planetary<\/p>\n
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Planetary Gears<\/a><\/p>\n

EV reducer \u00b7 planet set \u00b7 sun gear<\/p>\n<\/div>\n<\/div>\n

\"plastic<\/p>\n
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Plastic Gears<\/a><\/p>\n

EV sensor \u00b7 actuator \u00b7 window lift<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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GET A QUOTATION \u00b7 KOREA EVER-POWER<\/p>\n

Need Ring Gears for Automotive Applications?<\/h2>\n

Korea Ever-Power manufactures automotive ring gears across all three vehicle drivetrain applications \u2014 42CrMo4 flywheel ring gears (M4\u2013M7, all engine sizes), 8620H\/SAE 9310 differential hypoid ring gears (passenger car and commercial vehicle), and 20CrMnTi case carburized EV planetary ring gears (M3\u2013M8, DIN 5 ground, superfinished, NVH validated, bidirectional regen braking rated). PPAP Level 3 documentation, volume supply up to 350,000 pieces\/year. ISO 9001:2015 certified.<\/p>\n

Request a Quotation \u2192<\/a><\/p>\n<\/div>\n

Redattore: Cxm<\/em><\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

GEAR APPLICATION GUIDE \u00b7 RING GEAR \u00b7 R04 Ring Gears for Automotive Applications: Flywheel Ring Gears, Differential Ring Gears and EV Planetary Drives Automotive ring gears appear in three functionally distinct roles in a vehicle drivetrain \u2014 the flywheel ring gear (the external-tooth ring that the starter motor pinion engages to crank the engine), the […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[4566],"tags":[],"class_list":["post-1962","post","type-post","status-publish","format-standard","hentry","category-application-of-gears"],"_links":{"self":[{"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/posts\/1962","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/comments?post=1962"}],"version-history":[{"count":1,"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/posts\/1962\/revisions"}],"predecessor-version":[{"id":1964,"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/posts\/1962\/revisions\/1964"}],"wp:attachment":[{"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/media?parent=1962"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/categories?post=1962"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gearrack.top\/it\/wp-json\/wp\/v2\/tags?post=1962"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}