{"id":1678,"date":"2026-07-16T09:13:06","date_gmt":"2026-07-16T09:13:06","guid":{"rendered":"https:\/\/gearrack.top\/product\/gear-wheel-and-gear-rack\/"},"modified":"2026-07-16T09:13:07","modified_gmt":"2026-07-16T09:13:07","slug":"gear-wheel-and-gear-rack","status":"publish","type":"product","link":"https:\/\/gearrack.top\/fr\/product\/gear-wheel-and-gear-rack\/","title":{"rendered":"Roue dent\u00e9e et cr\u00e9maill\u00e8re"},"content":{"rendered":"
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<\/p>\n

Product Overview<\/h2>\n
\n
\n \"Roue\n <\/div>\n
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Gear wheel and gear rack<\/strong> form one of the most fundamental rotary-to-linear motion conversion mechanisms in mechanical engineering. A gear wheel \u2014 a toothed rotating component \u2014 meshes with a gear rack \u2014 a linear toothed bar \u2014 to convert the rotary motion of a shaft into precise linear displacement, or to convert linear force into rotary torque. Together they are the backbone of CNC machine tool table drives, rack-and-pinion steering systems, automated gate and door drives, elevator and hoist mechanisms, and any application where controlled linear motion must be achieved from a rotary power source. Korea Ever-Power supplies a full range of gear wheel and gear rack combinations in steel, stainless steel, cast iron, aluminium, and plastic \u2014 in standard metric and inch sizes, and custom per drawing.<\/p>\n

Korea Ever-Power is a specialist manufacturer of all kinds of mechanical transmission and hydraulic transmission products: planetary gearboxes, worm reducers, in-line helical gear speed reducers, parallel shaft helical gear reducers, helical bevel reducers, helical worm gear reducers, agricultural gearboxes, tractor gearboxes, auto gearboxes, PTO drive shafts, gear racks<\/a>, chains, timing pulleys, and related gear components \u2014 as well as customised gear wheels, gear racks, and gear sets per customer drawings.<\/p>\n<\/p><\/div>\n<\/div>\n

Korea Ever-Power Group has over twelve years of history, 1,000 workers, and 20 sales professionals. With over 100 million USD in annual sales (2017), advanced machinery equipment, large work capacity, high quality control, and ISO certification. Korea Ever-Power’s customers include John Deere (USA), Blount (USA), AGCO (USA), SILOKING (Germany), GKN (Germany), COMER (Italy), Brevini (Italy), Jay-Lor (Canada), and many more \u2014 confirming the quality standards that Korea Ever-Power maintains across its full gear product range.<\/p>\n

<\/p>\n

Technical Specifications<\/h2>\n
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Gear Wheel Specifications<\/p>\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nOptions<\/th>\n<\/tr>\n<\/thead>\n
Taper<\/td>\nSpur, helical, internal (ring), miter, anti-backlash<\/td>\n<\/tr>\n
Module \/ DP<\/td>\nMetric (M0.5\u2013M20) and inch (DP) standard; custom<\/td>\n<\/tr>\n
Mat\u00e9riel<\/td>\nLow carbon steel, C45, 20CrMnTi, 42CrMo, 40Cr, stainless steel; brass, bronze, POM, nylon, sintered metal<\/td>\n<\/tr>\n
Surface Treatment<\/td>\nBlacking, galvanisation, chroming, electrophoresis, colour painting<\/td>\n<\/tr>\n
Heat Treatment<\/td>\nHigh-frequency quench hardening, carburising, nitriding, hardened teeth<\/td>\n<\/tr>\n
Standard<\/td>\nMetric and inch; ISO, DIN, ANSI, JIS<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n
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Gear Rack Specifications<\/p>\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nOptions<\/th>\n<\/tr>\n<\/thead>\n
Taper<\/td>\nSpur rack, helical rack, round rack, hardened ground rack, flexible rack<\/td>\n<\/tr>\n
Module \/ DP<\/td>\nMetric M1\u2013M12; inch DP sizes; custom<\/td>\n<\/tr>\n
Mat\u00e9riel<\/td>\nC45 steel, alloy steel, stainless steel, plastic (POM, nylon)<\/td>\n<\/tr>\n
Special Types<\/td>\nWith mounting bolt holes; for door openers; for lift\/elevator\/hoist; hardened ground; round rack; flexible moulded<\/td>\n<\/tr>\n
Delivery Time<\/td>\n40\u201345 days standard; varies by product and customisation<\/td>\n<\/tr>\n
Payment<\/td>\n30% T\/T in advance; balance before shipment<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n

<\/p>\n

Gear Wheel and Gear Rack \u2014 Working Principle and Geometry<\/h2>\n

\"Engrenages<\/p>\n

The gear rack is, in a strict geometric sense, a gear wheel with an infinite pitch radius \u2014 its pitch circle has become a straight line (the pitch line of the rack). This geometric relationship is fundamental: because the gear wheel’s teeth mesh with the rack’s teeth in the same way any two gears mesh, all the principles of involute gear geometry apply directly to the gear wheel and rack pair. The key operating relationships are:<\/p>\n

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Linear Displacement per Revolution<\/h3>\n

For a spur gear wheel meshing with a spur gear rack, the linear displacement of the rack per full revolution of the gear wheel equals the gear wheel’s pitch circumference: L = \u03c0 \u00d7 m \u00d7 Z, where m is the module and Z is the number of teeth. For example, a 20-tooth M2 spur gear produces a rack displacement of \u03c0 \u00d7 2 \u00d7 20 = 125.7 mm per revolution of the gear. This simple, exact relationship is why the rack-and-pinion mechanism is preferred for applications requiring precise linear positioning with a known and repeatable relationship between motor turns and linear travel.<\/p>\n<\/p><\/div>\n

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Module Matching Requirement<\/h3>\n

The gear wheel and gear rack must have identical modules (or identical DP in inch systems) and identical pressure angles (standard 20\u00b0) to mesh correctly. A mismatch in module or pressure angle causes incorrect tooth contact \u2014 the teeth either bind (too tight) or rattle (too loose), both leading to rapid wear. Korea Ever-Power supplies matched gear wheel and gear rack sets confirmed to the same module and pressure angle, and advises on the correct combination for each application.<\/p>\n<\/p><\/div>\n

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Spur vs Helical Rack<\/h3>\n

Spur gear racks have teeth perpendicular to the rack axis. Helical gear racks have teeth at a helix angle \u2014 typically 15\u00b0 or 19.5\u00b0 for standard helical rack sets. Helical racks produce smoother, quieter operation because multiple teeth engage simultaneously (gradual load transfer) and the axial thrust from the helix angle damps vibration. The tradeoff is that a helical pinion (gear wheel) with the correct matching helix angle is required. Korea Ever-Power supplies both types, and ground helical gear racks for the highest-precision CNC applications.<\/p>\n<\/p><\/div>\n

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Hardened Ground Rack for CNC<\/h3>\n

For CNC machine tool table drives and precision linear motion applications, hardened and ground gear racks are specified. The carburised or case-hardened rack surface (HRC 58\u201362) resists pitting fatigue over millions of engagement cycles; the ground tooth profile and pitch accuracy (typically DIN 5\u20136 for ground racks) produce the transmission accuracy needed for sub-0.1 mm positioning repeatability. Korea Ever-Power supplies hardened ground racks and matching precision ground pinions as sets for CNC applications.<\/p>\n<\/p><\/div>\n

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Rack Joining for Long Travel<\/h3>\n

Standard gear racks are supplied in lengths of 1,000 mm (1 metre). For longer travel distances, multiple rack sections are joined end-to-end. The joint must maintain pitch continuity \u2014 the tooth pitch across the joint must equal the rack’s standard pitch with no step error. Korea Ever-Power’s steel gear racks with mounting bolt holes are designed to facilitate rack joining: the bolt hole pattern allows correct registration of adjacent rack sections at the joint, maintaining pitch continuity without special tooling.<\/p>\n<\/p><\/div>\n

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Round Gear Rack (Circular Rack)<\/h3>\n

A round (circular cross-section) gear rack is a cylindrical bar with teeth cut along its length \u2014 in contrast to the rectangular cross-section of standard racks. Round racks are used in cam mechanisms, push-pull linkages, and applications where the rack must fit within a cylindrical bore. Korea Ever-Power supplies steel round gear racks and stainless steel round gear racks in standard metric modules, and can supply with or without keyway for rotation-prevented installation.<\/p>\n<\/p><\/div>\n<\/div>\n

<\/p>\n

Korea Ever-Power Full Gear and Rack Product Range<\/h2>\n

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

Korea Ever-Power’s gear wheel and gear rack product range covers every standard type available to industrial buyers:<\/p>\n

\n
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Gear Racks<\/h3>\n

Spur gear racks (metric and inch), steel helical gear racks, ground helical gear racks, hardened ground racks, steel round gear racks, stainless steel round gear racks, stainless steel gear racks, racks for door openers, gear racks for lift\/elevator\/hoist, plastic gear racks, moulded flexible gear racks, steel gear racks with mounting bolt holes.<\/p>\n<\/p><\/div>\n

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Spur Gears<\/h3>\n

DP steel spur gears, module steel spur gears, steel hubless spur gears, steel ring gears (spur type), stainless steel spur gears, brass spur gears, powder metal sintered metal spur gears, plastic spur gears, plastic spur gears with steel core, plastic spur gears with sintered metal bushings, anti-backlash spur gears.<\/p>\n<\/p><\/div>\n

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Helical and Herringbone Gears<\/h3>\n

Steel helical gears, ground helical gears, herringbone gears. Herringbone gears eliminate the axial thrust of single-helix helical gears by combining left-hand and right-hand helix teeth in one gear \u2014 the axial forces from each half cancel out, producing zero net axial load on the shaft and bearings.<\/p>\n<\/p><\/div>\n

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Engrenages coniques<\/h3>\n

Steel bevel gears and pinion shafts, spiral bevel gears, ground spiral bevel gears, ground Zerol bevel gears, finished bore spiral bevel gears, stainless steel bevel gears, plastic bevel gears, injection-moulded bevel gears (Duracon), forged bevel gears, steel miter gears.<\/p>\n<\/p><\/div>\n

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Worm Gears<\/h3>\n

Gray iron worm gear wheels, bronze worm gear wheels, nylon plastic worm gear wheels, duplex worm gear wheels, duplex worms, worm wheels for worm drive \u2014 covering the full range of worm gear types for industrial, automotive, and precision applications.<\/p>\n<\/p><\/div>\n

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Screw and Special Gears<\/h3>\n

Plastic screw gears, aluminium-bronze screw gears, stainless steel screw gears, steel screw gears, stem pinions, change gears, hypoid gears, ratchet wheels, ring gears, gear couplings (inner hub and ring), herringbone gears.<\/p>\n<\/p><\/div>\n<\/div>\n

<\/p>\n

Material, Surface Treatment, and Heat Treatment<\/h2>\n

\"measuring<\/p>\n

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Materials Available<\/h3>\n

Low carbon steel, C45 medium carbon steel, 20CrMnTi (carburising alloy), 42CrMo (high-strength alloy), 40Cr (alloy steel), stainless steel \u2014 adaptable to customer requirements. For gear racks in corrosive environments, stainless steel gear racks are specified. For plastic gear wheels, POM (Delrin), nylon (PA66), and sintered metal options are available. Brass and bronze for worm wheels.<\/p>\n<\/p><\/div>\n

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Surface Treatment<\/h3>\n

Blacking (black oxide \u2014 oil-retained, corrosion-retardant), galvanisation (zinc-plated \u2014 indoor corrosion protection), chroming (hard chrome for wear resistance), electrophoresis (cathodic electrocoat \u2014 automotive quality corrosion protection), colour painting (RAL colour to specification). Surface treatment selection is guided by the operating environment and customer specification.<\/p>\n<\/p><\/div>\n

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Heat Treatment<\/h3>\n

High-frequency quench hardening (induction hardening of tooth surface only \u2014 core stays tough); carburising (20CrMnTi \u2014 deep case, HRC 58\u201362 surface, tough core); nitriding (surface hardness to HV900+ without distortion \u2014 ideal for rack surfaces where grinding after hardening is not practical); carbonitriding (shallower than carburising, combined C and N diffusion for wear and corrosion resistance).<\/p>\n<\/p><\/div>\n<\/div>\n

<\/p>\n

Applications<\/h2>\n

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

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\n
<\/div>\n

CNC Machine Tools<\/h3>\n

Hardened ground gear racks with matched precision helical pinions in CNC machining centre X\/Y table drives, CNC router gantry drives, and CNC plasma cutter table drives. The ground rack tooth surface (Ra 0.4\u20130.8 \u00b5m) and DIN 5\u20136 accuracy produce the positioning repeatability required for CNC table drives: typically \u00b10.02\u20130.05 mm over the full rack length.<\/p>\n<\/div>\n

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<\/div>\n

Automotive and Agricultural<\/h3>\n

Gear wheels and racks in automotive rack-and-pinion steering gear assemblies, tractor gearbox components, and agricultural machinery feed drives. Korea Ever-Power’s agricultural gearbox and tractor gearbox programmes cover the full range of agricultural gear components including spur gears, bevel gears, and gear racks for these OEM customers.<\/p>\n<\/div>\n

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<\/div>\n

Automated Doors and Gates<\/h3>\n

Gear racks for automatic sliding door openers and automated security gate drives \u2014 the rack mounts on the door or gate leaf; a drive pinion mounted on the motor unit engages the rack to open and close. Korea Ever-Power’s door opener gear racks are available in standard lengths with pre-drilled mounting holes for easy installation on door frames and gate leaves.<\/p>\n<\/div>\n

\n
\ufe0f<\/div>\n

Elevators, Hoists, and Construction<\/h3>\n

Heavy-duty gear racks for construction hoist (man and materials hoist) vertical drives, rack-and-pinion elevators, and mast climbing work platforms. These applications require large module racks (M6\u2013M12) in heat-treated alloy steel \u2014 Korea Ever-Power supplies to the safety standards required for lifting applications, with full material certification.<\/p>\n<\/div>\n

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<\/div>\n

Marine and Offshore<\/h3>\n

Stainless steel gear racks and gear wheels for marine environment valve actuators, offshore platform positioning systems, and ship deck machinery. SS316 stainless steel provides the chloride corrosion resistance required for marine and offshore rack-and-pinion drives operating in salt air and seawater spray environments.<\/p>\n<\/div>\n

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<\/div>\n

General Industry<\/h3>\n

Standard C45 steel spur gear racks with matching pinion gears in general industrial linear motion systems: material handling conveyors, robotic arm linear axes, solar tracker azimuth drives, winding machine traverse drives, and any application converting rotary motor output to controlled linear motion.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Frequently Asked Questions<\/h2>\n
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\n

Are you a trading company or a manufacturer?<\/p>\n

Korea Ever-Power Group consists of 3 factories and 2 abroad sales corporations \u2014 a manufacturer and exporter, not a pure trading company. With over twelve years of history, 1,000 workers, and ISO certification, Korea Ever-Power has the manufacturing scale and technical team to supply all standard and custom gear wheel and gear rack types with quality assurance and consistent delivery.<\/p>\n<\/div>\n

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What is the delivery time and payment term for gear wheel and gear rack orders?<\/p>\n

Standard delivery is 40\u201345 days; the time may vary depending on the product and customisation level. Payment terms: 30% T\/T in advance, balance before shipment. For standard products with no customisation, shorter lead times may be available \u2014 confirm at the quotation stage. Samples are available free of charge (customer pays freight).<\/p>\n<\/div>\n

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What is the MOQ for gear wheels and gear racks?<\/p>\n

As an OEM company, Korea Ever-Power can adapt products to a wide range of needs \u2014 MOQ and price vary significantly with size, material, and specifications. Costly products or standard products typically have lower MOQ. Please contact Korea Ever-Power with all relevant details to get the most accurate quotation. Small trial orders are accepted.<\/p>\n<\/div>\n

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\n

Can Korea Ever-Power produce customised gear wheels and racks not on the standard list?<\/p>\n

Yes \u2014 Korea Ever-Power produces customised gear wheels and gear racks per customer drawings, including non-standard modules, special materials, special lengths, and special cross-sections. The engineering team can also customise variators, geared motors, electric motors, and other hydraulic products according to customer drawings. Contact Korea Ever-Power<\/a> with your specification to begin.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Customer Reviews<\/h2>\n
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\n

“We manufacture CNC router tables for woodworking and source hardened ground gear racks<\/a> with matched helical pinions from Korea Ever-Power. Rack pitch accuracy at incoming: pitch error 4 \u00b5m per 300 mm section \u2014 within DIN 6 tolerance. Gantry positioning repeatability on our table: \u00b10.03 mm over 4 metres \u2014 within our \u00b10.05 mm specification. Three years’ supply, 18 sets installed and running.”<\/p>\n

Kim Hyun-woo<\/strong>  |  CNC Router Table Production Engineer, Incheon Woodworking Equipment Co.  ·  Q1 2026<\/em><\/p>\n<\/div>\n

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“We build automated sliding gate systems and purchase M6 steel gear racks with mounting bolt holes from Korea Ever-Power. Delivery on schedule at 42 days. Material certification (C45 steel, chemical analysis) supplied with each batch. Rack surface blacked \u2014 no corrosion after 18 months outdoor installation in coastal environment with regular hosing down. Pitch continuity at rack joints confirmed with our calibrated rack micrometer.”<\/p>\n

Lee Sang-jun<\/strong>  |  Automated Gate Systems Engineer, Gyeonggi Security Automation Co.  ·  Q4 2025<\/em><\/p>\n<\/div>\n

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“We are an agricultural machinery OEM and source spur gear wheels and racks for our tractor-mounted equipment drives from Korea Ever-Power. The 30% T\/T advance payment arrangement works well for us. Free sample shipped before first bulk order \u2014 confirmed dimensions and heat treatment hardness (HRC 55 measured). Korea Ever-Power’s OEM programme handles our annual 2,000-piece order volume with consistent quality across batches.”<\/p>\n

Park Dong-jun<\/strong>  |  Agricultural Machinery Production Manager, Daejeon Agri-Equipment Co.  ·  Q2 2026<\/em><\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Related Products<\/h2>\n
\n
\"Other<\/a><\/p>\n
\n

Other Gears<\/h3>\n

Herringbone, hypoid, crown gear, tractor gears, forklift gears, oil pump gears and more.<\/p>\n

Browse \u2192<\/a><\/div>\n<\/div>\n

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

Planetary Gears<\/h3>\n

Planetary ring gears, internal gear kits, and planetary gear sets.<\/p>\n

Browse \u2192<\/a><\/div>\n<\/div>\n

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

Ring Gears<\/h3>\n

Aerospace, wind turbine, automotive, and industrial ring gears.<\/p>\n

Browse \u2192<\/a><\/div>\n<\/div>\n

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

Spur Gears<\/h3>\n

Steel, stainless, plastic spur gears \u2014 all modules and materials.<\/p>\n

Browse \u2192<\/a><\/div>\n<\/div>\n

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

Helical Gears<\/h3>\n

Industrial helical gears for low-noise parallel shaft drives.<\/p>\n

Browse \u2192<\/a><\/div>\n<\/div>\n

\"Engrenages<\/a><\/p>\n
\n

Engrenages coniques<\/h3>\n

Bevel and spiral bevel gears for right-angle output drives.<\/p>\n

Browse \u2192<\/a><\/div>\n<\/div>\n

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

Worm Gears<\/h3>\n

Brass worm wheels, stainless steel worm gears, duplex worm sets, worm shafts.<\/p>\n

Browse \u2192<\/a><\/div>\n<\/div>\n<\/div>\n

\n

Request a Quotation for Gear Wheel and Gear Rack<\/h3>\n

Spur and helical gear racks, hardened ground racks, round racks, door\/elevator racks. Matched pinion gear wheels. All modules and materials. Standard or custom per drawing. OEM accepted. Free sample (freight by customer). Delivery 40\u201345 days.<\/p>\n

Get a Quote Now<\/a>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Gear wheels and gear racks from Korea Ever-Power \u2014 precision-machined steel gear wheels and racks for linear motion systems, CNC machines, automated doors, and industrial drives. Available in modules M1 to M10, lengths up to 3,000 mm, materials including C45 steel, 42CrMo, and stainless steel. Surface hardness up to HRC 58\u201362 with induction hardening. Standard and custom configurations per drawing or sample.<\/p>","protected":false},"featured_media":1679,"comment_status":"closed","ping_status":"open","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[4563],"product_tag":[],"class_list":["post-1678","product","type-product","status-publish","has-post-thumbnail","product_cat-other-gear","pa_editor-cxm","first","instock","product-type-simple"],"_links":{"self":[{"href":"https:\/\/gearrack.top\/fr\/wp-json\/wp\/v2\/product\/1678","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gearrack.top\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/gearrack.top\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/gearrack.top\/fr\/wp-json\/wp\/v2\/comments?post=1678"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gearrack.top\/fr\/wp-json\/wp\/v2\/media\/1679"}],"wp:attachment":[{"href":"https:\/\/gearrack.top\/fr\/wp-json\/wp\/v2\/media?parent=1678"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/gearrack.top\/fr\/wp-json\/wp\/v2\/product_brand?post=1678"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/gearrack.top\/fr\/wp-json\/wp\/v2\/product_cat?post=1678"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/gearrack.top\/fr\/wp-json\/wp\/v2\/product_tag?post=1678"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}