{"id":1310,"date":"2026-09-04T06:24:43","date_gmt":"2026-09-04T06:24:43","guid":{"rendered":"https:\/\/superiortransmissioninc.com\/?post_type=product&p=1310"},"modified":"2026-09-04T07:58:57","modified_gmt":"2026-09-04T07:58:57","slug":"ep-29x29x1000-helical-gear-rack-m3-precision-linear-motion-solution","status":"publish","type":"product","link":"https:\/\/superiortransmissioninc.com\/ja\/product\/ep-29x29x1000-helical-gear-rack-m3-precision-linear-motion-solution\/","title":{"rendered":"EP-29x29x1000 \u30d8\u30ea\u30ab\u30eb\u30ae\u30a2\u30e9\u30c3\u30af \u2014 M3 Precision \u30ea\u30cb\u30a2\u30e2\u30fc\u30b7\u30e7\u30f3\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3"},"content":{"rendered":"
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EP-29x29x1000 \u30d8\u30ea\u30ab\u30eb\u30ae\u30a2\u30e9\u30c3\u30af \u2014 M3 Precision \u30ea\u30cb\u30a2\u30e2\u30fc\u30b7\u30e7\u30f3\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3<\/h2>\n<\/div>\n

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\u6280\u8853\u4ed5\u69d8<\/h2>\n

Every dimension and tolerance listed below has been verified against production drawings for the EP-29x29x1000. The four-side grinding and dedicated tooth-surface grinding process ensures that the rack tooth<\/strong> profile meets DIN6 GB5 precision requirements with tooth-surface hardness of HRC 48\u201352\u00b0, providing reliable performance in high-cycle, heavy-duty applications where a standard spur gear rack<\/strong> would be insufficient.<\/p>\n

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\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u30d1\u30e9\u30e1\u30fc\u30bf<\/th>\n\u4fa1\u5024<\/th>\nRemarks<\/th>\n<\/tr>\n<\/thead>\n
\u30e2\u30c7\u30eb<\/td>\n552030100<\/td>\nStandard helical rack<\/td>\n<\/tr>\n
Specification (W\u00d7H\u00d7L)<\/td>\n29 \u00d7 29 \u00d7 1000 mm<\/td>\nSquare cross-section, 1000 mm length<\/td>\n<\/tr>\n
\u30e2\u30b8\u30e5\u30fc\u30eb<\/td>\nM3<\/td>\nMetric module standard<\/td>\n<\/tr>\n
\u6b6f\u306e\u6570<\/td>\nZ = 100<\/td>\nFull-length engagement<\/td>\n<\/tr>\n
Pressure Angle<\/td>\n\u03b1 = 20\u00b0<\/td>\nStandard involute profile<\/td>\n<\/tr>\n
Addendum Coefficient<\/td>\nha = 1<\/td>\nStandard full-depth tooth<\/td>\n<\/tr>\n
Tooth Profile<\/td>\nHelical teeth<\/td>\nSmoother engagement vs. straight rack<\/td>\n<\/tr>\n
Helix Angle<\/td>\n19\u00b0 31\u2032 42\u2033<\/td>\nRight-hand helix<\/td>\n<\/tr>\n
Precision Grade<\/td>\nDIN6 GB5<\/td>\nHigh-accuracy class<\/td>\n<\/tr>\n
Surface Hardness<\/td>\nHRC 48\u201352\u00b0<\/td>\nTooth surface high-frequency induction hardening<\/td>\n<\/tr>\n
Production Process<\/td>\nFour-side grinding + tooth-surface grinding<\/td>\nAchieves tight parallelism and profile tolerances<\/td>\n<\/tr>\n
Mounting Hole Pitch<\/td>\n50 mm (standard)<\/td>\nEnables easy end-to-end splicing<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

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How a Helical Gear Rack Works<\/h2>\n

A gear rack<\/strong> is, in essence, a gear with an infinite pitch diameter \u2014 its teeth are arranged along a straight bar rather than around a circle. When a rotating pinion meshes with the rack, rotational motion is converted into precise linear displacement. The relationship between angular rotation and linear travel is governed directly by the module and the number of pinion teeth, making the rack and pinion gear<\/strong> system one of the most predictable and backlash-controllable linear drive mechanisms available in mechanical engineering.<\/p>\n

The distinguishing feature of a helical rack and pinion<\/strong> pairing is the angle at which the teeth are cut. On the EP-29x29x1000, that helix angle is 19\u00b0 31\u2032 42\u2033. This geometry means multiple teeth are always simultaneously engaged, distributing load across a broader contact zone. Compared to a conventional straight gear rack<\/strong> or standard spur gear rack<\/strong>, helical engagement produces significantly lower vibration and noise levels \u2014 a critical advantage in automated manufacturing lines where acoustic and dynamic stability directly affect product quality.<\/p>\n

High-frequency induction hardening brings the tooth surface to HRC 48\u201352\u00b0, dramatically extending wear life under continuous cyclic loading. The underlying core remains tough and impact-resistant, preventing brittle fracture in shock-load conditions. Four-side precision grinding establishes tight flatness and parallelism of the mounting faces, ensuring that when multiple rack sections are joined end-to-end in a long travel axis, cumulative pitch error remains within the DIN6 GB5 tolerance band. The result is a linear rack and pinion<\/strong> drive that maintains positioning accuracy over the full travel length \u2014 essential for applications such as gantry systems, machine tool carriages, and rack and pinion linear slide<\/strong> assemblies.<\/p>\n<\/div>\n

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\"Helical<\/div>\n

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Five Key Advantages of the EP-29x29x1000 Gear Rack<\/h2>\n
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\u2699<\/div>\n

DIN6 GB5 Precision<\/strong><\/p>\n

Ground to DIN6 GB5 accuracy class, enabling consistent positioning across full rack length \u2014 a necessity for precision CNC and robotic axes.<\/p>\n<\/div>\n

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\ud83d\udd25<\/div>\n

HRC 48\u201352 Tooth Hardness<\/strong><\/p>\n

High-frequency surface hardening extends wear life substantially compared to through-hardened or untreated racks, reducing maintenance intervals in heavy-duty<\/strong> \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3002<\/p>\n<\/div>\n

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\ud83d\udd07<\/div>\n

Low-Noise Helical Engagement<\/strong><\/p>\n

The 19\u00b0 31\u2032 42\u2033 helix angle ensures smooth tooth contact transition, reducing operational noise and vibration versus a standard straight gear rack<\/strong>.<\/p>\n<\/div>\n

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\ud83d\udccf<\/div>\n

Four-Side Ground Mounting Faces<\/strong><\/p>\n

All four sides are precision-ground, guaranteeing flat, parallel mounting surfaces for accurate installation and straightforward end-to-end splicing on long travel axes.<\/p>\n<\/div>\n

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\ud83d\udd04<\/div>\n

Custom Rack Options Available<\/strong><\/p>\n

Beyond the standard 1000 mm length, custom gear rack<\/strong> lengths, modules, and bore configurations are available to meet project-specific design requirements globally.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Material & Manufacturing Process<\/h2>\n

The EP-29x29x1000 gear rack<\/strong> is manufactured from high-quality alloy structural steel, selected for its balanced combination of strength, toughness, and hardenability. The base material provides sufficient core toughness to absorb dynamic shock loads \u2014 particularly relevant in rack and pinion press<\/strong> applications and heavy machine tool drives \u2014 while the high-frequency induction hardening process selectively hardens the tooth flanks and tips to HRC 48\u201352\u00b0 without embrittling the cross-section.<\/p>\n

The four-side grinding operation is carried out on a precision surface grinder after heat treatment, removing any distortion introduced during hardening and establishing tight flatness tolerances on all mounting faces. Tooth-surface grinding then brings the helical tooth flanks to the DIN6 GB5 profile accuracy, controlling pitch error, tooth-to-tooth variation, and total accumulated pitch error within tightly defined limits.<\/p>\n

The combination of alloy steel substrate, surface hardening, and ground tooth geometry results in a linear gear rack<\/strong> that performs reliably in environments where lubrication may be intermittent, loads are heavy, and cycle counts are high. Anti-rust treatment is applied as a standard protective measure prior to packaging and shipping, maintaining surface integrity during transit to customers in Australia, the UK, the Netherlands, North America, South Korea, and other global markets.<\/p>\n<\/div>\n

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\"Gear<\/div>\n

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\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b7\u30ca\u30ea\u30aa<\/h2>\n

The EP-29x29x1000 helical gear rack<\/strong> finds use in a wide range of industrial sectors. Its precision ground teeth and high surface hardness make it equally at home in light-duty automation and in heavy machine tools. The following application areas represent typical deployments of M3 module helical racks worldwide \u2014 from European manufacturing plants to Asia-Pacific processing facilities.<\/p>\n

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\ud83d\udee0 CNC Machine Tools<\/strong><\/p>\n

Machining centres, gantry mills, and boring machines rely on gears rack and pinion<\/strong> drives for rapid axis travel combined with precise positioning. The helical tooth geometry minimises chatter transmitted to the cutting tool.<\/p>\n<\/div>\n

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\ud83e\udd16 Industrial Robotics & Gantry Systems<\/strong><\/p>\n

Gantry robots and Cartesian handling systems depend on rack and pinion linear slide<\/strong> assemblies for high-speed, repeatable part transfer. The EP rack’s DIN6 accuracy ensures minimal cumulative travel error over long strokes.<\/p>\n<\/div>\n

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\ud83d\ude97 Automated Storage & Retrieval<\/strong><\/p>\n

AS\/RS stacker cranes and shuttle systems use duty gear rack<\/strong> drives to move storage and retrieval heads at high speed. The hardened tooth surface withstands millions of engagement cycles without significant wear.<\/p>\n<\/div>\n

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\ud83d\udd27 Laser & Plasma Cutting Machines<\/strong><\/p>\n

High-speed laser cutting tables use precision helical rack<\/strong> and servo pinion combinations to move cutting heads accurately at velocities exceeding 100 m\/min. The smooth engagement of helical teeth is critical here.<\/p>\n<\/div>\n

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\ud83c\udfed Press & Stamping Equipment<\/strong><\/p>\n

In rack and pinion press<\/strong> configurations and die-transfer mechanisms, the rack must handle significant thrust loads. The alloy steel core and hardened tooth surface of this gear rack<\/strong> are well-suited to these cyclic impact conditions.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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\u95a2\u9023\u88fd\u54c1\u304a\u3088\u3073\u30b7\u30b9\u30c6\u30e0\u4e92\u63db\u6027<\/h2>\n

We manufacture the complete gear rack and pinion<\/strong> system \u2014 not just the rack. Sourcing the rack and its mating components from a single production facility eliminates inter-supplier tolerance stack-up and simplifies qualification. Below are two product families that are frequently specified alongside the EP-29x29x1000.<\/p>\n

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\"Plastic
\n\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u88fd\u30ae\u30a2\u30e9\u30c3\u30af<\/strong><\/p>\n

For applications where weight reduction, corrosion resistance, or low-noise operation in dry environments is the priority, our plastic gear rack<\/a> series offers a direct profile-compatible alternative. Available in multiple modules including M3, these racks pair directly with standard steel pinions and are widely used in medical, food-processing, and light automation equipment across global markets.<\/p>\n<\/div>\n

\"Helical
\nHelical Gear (Pinion)<\/strong><\/p>\n

The EP-29x29x1000 is specifically designed to mesh with a matching M3 helical gear<\/a> pinion. Our full series of helical gears covers modules from M1 through M10, in straight-bore and keyed-bore configurations, manufactured to the same DIN precision grades as the rack. Specifying both from the same production source guarantees matched helix angles and eliminates lead-mismatch errors in the rack pinion gear<\/strong> mesh.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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\u4f1a\u793e\u6982\u8981 \u2014 10\u5e74\u4ee5\u4e0a\u306b\u308f\u305f\u308b\u6a5f\u68b0\u5f0f\u30c8\u30e9\u30f3\u30b9\u30df\u30c3\u30b7\u30e7\u30f3\u306e\u5c02\u9580\u77e5\u8b58<\/h2>\n

With more than a decade of focused experience in mechanical power transmission, our production facility operates under ISO 9001:2015 certification, applying a quality management framework that spans incoming material inspection, in-process dimensional control, and final performance verification before shipment.<\/p>\n

Our manufacturing scope covers a broad portfolio: agricultural gearboxes, worm gear reducers, planetary gear drives, power take-off (PTO) shafts, hydraulic cylinders, gears, roller chains, and electric motors. We also design and produce a wide spectrum of industrial and agricultural gearbox assemblies in materials including ductile iron, cast iron, cast steel, precision investment cast steel, and cast aluminium \u2014 along with sprockets, worm gears, pulleys, worms, shafts, and both standard and engineered-to-order mechanical components.<\/p>\n<\/div>\n

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\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n

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Q1. How does a helical gear rack perform differently from a straight gear rack in a high-speed CNC linear axis application?<\/strong><\/div>\n
A helical gear rack<\/strong> engages its mating pinion with a gradual tooth contact that begins at one end of the tooth face and sweeps progressively across \u2014 unlike the simultaneous full-face contact of a straight gear rack<\/strong>. This gradual engagement reduces impact loading at each tooth entry, which directly lowers vibration and audible noise. In high-speed CNC axes where both rapid traverse velocity and final positioning accuracy matter, the helical option typically allows higher feed rates with the same servo torque, and the smoother load profile reduces wear on both the rack and the pinion bearings.<\/div>\n<\/div>\n

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Q2. What is the best way for manufacturers in Australia and the UK to specify and order a custom gear rack length for a long-travel gantry robot axis?<\/strong><\/div>\n
For travel lengths exceeding 1000 mm, the standard approach is to specify custom gear rack<\/strong> sections of equal length joined end-to-end with precision-matched splice joints. The EP-29x29x1000 has a standard mounting-hole pitch of 50 mm, which allows sections to be bolted to the base structure at regular intervals before alignment. For buyers in Australia and the UK, we recommend specifying the total travel length, the required precision grade (DIN6 GB5 is standard), and any surface treatment requirements in the inquiry. Our technical team then calculates the optimal section count and supplies a jointing instruction sheet with each order shipment.<\/div>\n<\/div>\n

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Q3. Which lubrication method works most effectively for a rack and pinion linear slide running at high duty cycles in a European industrial automation environment?<\/strong><\/div>\n
For high duty-cycle rack and pinion linear slide<\/strong> systems in European automation \u2014 such as AS\/RS warehousing or transfer line machinery \u2014 automatic centralized lubrication systems (centralised grease lubrication via pinion-mounted spray nozzles or grease-metering units) represent the industry best practice. ISO VG 220 or VG 460 gear oils or high-adhesion lithium-complex greases with EP additives are the most commonly specified lubricants. Manual re-greasing intervals should be determined based on actual operating hours and ambient temperature, typically every 250\u2013500 operating hours for systems running 16+ hours per day. The HRC 48\u201352\u00b0 tooth surface of this gear rack<\/strong> is particularly tolerant of intermittent lubrication, but sustained dry running should be avoided.<\/div>\n<\/div>\n

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Q4. When should engineers in the North American market consider replacing a steel gear rack with a plastic gear rack for a light-duty linear conveyor system?<\/strong><\/div>\n
A plastic gear rack<\/strong> becomes the preferred choice in North American light-duty applications when the design priorities shift toward weight reduction, corrosion resistance in wet or chemically aggressive environments, or the elimination of lubrication maintenance. Typical use cases include food and beverage processing lines where wash-down cycles are frequent, medical device handling systems where contamination risk from lubricants is unacceptable, and small packaging or sorting conveyors where the transmitted force is below approximately 200\u2013400 N depending on the polymer grade and module. For applications requiring higher load capacity, impact resistance, or sub-millimetre positional accuracy, an alloy steel helical gear rack<\/strong> like the EP-29x29x1000 remains the correct specification.<\/div>\n<\/div>\n

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Q5. How do you calculate the gear ratio of a rack and pinion drive, and what pinion tooth count is recommended for pairing with an M3 gear rack in a servo-driven axis?<\/strong><\/div>\n
\u306e gear ratio of rack and pinion<\/strong> is typically expressed as the linear travel per revolution of the pinion, rather than as a conventional gear ratio: Travel per revolution = \u03c0 \u00d7 Module \u00d7 Number of pinion teeth. For an M3 rack paired with a Z=20 pinion, one full pinion revolution produces \u03c0 \u00d7 3 \u00d7 20 \u2248 188.5 mm of rack travel. For a servo-driven axis, pinion tooth counts between Z=16 and Z=25 are most common at M3 module, balancing tooth strength against resolution. A smaller Z value gives finer resolution per encoder count (assuming a fixed servo encoder) but requires more torque for the same thrust force. Our engineering team can assist customers in South Korea, the Netherlands, and other markets with axis sizing calculations that integrate motor inertia, gear reduction, and the specific rack pinion gear<\/strong> geometry.<\/div>\n<\/div>\n<\/div>\n

\u7de8\u96c6\u8005: PXY<\/p>","protected":false},"excerpt":{"rendered":"

\u306e EP-29x29x1000 Helical Gear Rack<\/strong> (Model 552030100) is a high-precision, M3 module rack designed for demanding linear motion and power transmission applications. With helical teeth ground to DIN6 GB5 tolerance, a cross-section of 29\u00d729 mm, and an overall length of 1000 mm, this gear rack<\/strong> delivers consistent, low-noise performance in automation systems, CNC equipment, robotic axes, and heavy industrial machinery. Whether you are engineering a rack and pinion<\/strong> drive for a gantry robot or specifying a linear gear rack<\/strong> for a precision positioning stage, the EP-29x29x1000 is built to meet the load and accuracy requirements of modern production environments worldwide.<\/p>","protected":false},"featured_media":1312,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[53,55],"product_tag":[],"class_list":["post-1310","product","type-product","status-publish","has-post-thumbnail","product_cat-gear-rack","product_cat-helical-gear-rack","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/superiortransmissioninc.com\/ja\/wp-json\/wp\/v2\/product\/1310","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/superiortransmissioninc.com\/ja\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/superiortransmissioninc.com\/ja\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/ja\/wp-json\/wp\/v2\/media\/1312"}],"wp:attachment":[{"href":"https:\/\/superiortransmissioninc.com\/ja\/wp-json\/wp\/v2\/media?parent=1310"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/ja\/wp-json\/wp\/v2\/product_brand?post=1310"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/ja\/wp-json\/wp\/v2\/product_cat?post=1310"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/ja\/wp-json\/wp\/v2\/product_tag?post=1310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}