{"id":413,"date":"2026-01-13T03:35:28","date_gmt":"2026-01-13T03:35:28","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?post_type=product&p=413"},"modified":"2026-01-13T05:11:48","modified_gmt":"2026-01-13T05:11:48","slug":"vr-series-high-precision-planetary-gearbox-for-chain-transmission","status":"publish","type":"product","link":"https:\/\/planetary-gearboxes.com\/ko\/product\/vr-series-high-precision-planetary-gearbox-for-chain-transmission\/","title":{"rendered":"VR \uc2dc\ub9ac\uc988 \uace0\uc815\ubc00 \uc720\uc131 \uae30\uc5b4\ubc15\uc2a4 (\uccb4\uc778 \uad6c\ub3d9\uc6a9)"},"content":{"rendered":"
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\uc81c\ud488 \uac1c\uc694<\/h2>\n

The VR Series High Precision Planetary Gearbox represents the zenith of concentric transmission technology, specifically re-engineered to address the complex dynamics and high-load requirements of industrial \uccb4\uc778<\/strong> drive systems found throughout South Korea\u2019s advanced manufacturing sector. In the rapidly evolving landscape of smart factories\u2014from the automated logistics hubs in Incheon to the precision semiconductor packaging facilities in Gyeonggi-do\u2014the demand for transmission components that offer both structural rigidity and positional precision is critical. Standard spur gearboxes often fail to cope with the “polygonal effect” or chordal action inherent in roller \uccb4\uc778<\/strong> drives, leading to speed ripples, audible noise, and vibration that can degrade product quality or damage sensitive payloads. The VR Series solves this through its advanced internal geometry and premium helical gearing. It features a concentric axis design where the input and output shafts are perfectly aligned, streamlining the drivetrain layout and reducing the footprint of the machine. This alignment is crucial when driving long-span conveyor \uc1e0\uc0ac\uc2ac<\/strong> in automotive assembly lines in Ulsan or precision indexing \uc1e0\uc0ac\uc2ac<\/strong> in electronics manufacturing. By utilizing high-grade helical gears, the VR Series functions as a superior \ubcc0\uc18d\uae30 \uc720\uc131 \uae30\uc5b4\ubc15\uc2a4<\/strong>, ensuring that the torque transfer to the \uccb4\uc778<\/strong> sprocket is seamless, reducing the chordal action and extending the fatigue life of the entire \uccb4\uc778<\/strong> loop.<\/p>\n

\u00a0\"VR<\/p>\n

Beyond its kinematic superiority, the VR Series is constructed to serve as a \uace0\ud558\uc911 \uc720\uc131 \uae30\uc5b4\ubc15\uc2a4<\/strong> capable of withstanding the harsh realities of industrial environments. The unit housing is precision-machined from a single piece of high-tensile alloy steel (typically 20CrMnTi for gears and rigid cast iron\/aluminum for housing), providing a rigid foundation that resists the substantial radial loads exerted by tensioned \uc1e0\uc0ac\uc2ac<\/strong>. Unlike split-housing designs that may flex under load, the monolithic structure of the VR Series ensures that the internal gear meshing remains perfect even during emergency stops or high-acceleration moves. This durability is matched by its versatility; the gearbox offers a wide range of reduction ratios (from 3:1 to 100:1), allowing engineers to perfectly match the servo motor speed to the required linear velocity of the \uccb4\uc778<\/strong>. Whether powering a vertical bucket elevator requiring high torque at low speeds or a high-speed sorting \uccb4\uc778<\/strong> requiring rapid positioning, the VR Series delivers consistent performance. Its IP65 protection rating ensures that contaminants such as metal dust, moisture, or sticky chain lubricants do not compromise the internal mechanism, making it a reliable, low-maintenance solution for Korean factories aiming for 24\/7 productivity. The integration of the VR Series into your workflow guarantees a significant uplift in operational efficiency and reliability.<\/p>\n<\/section>\n

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\uae30\uc220 \uc0ac\uc591 \ubc0f \uc131\ub2a5 \ub370\uc774\ud130<\/h2>\n

Selecting the optimal \uc720\uc131 \uac10\uc18d \uae30\uc5b4\ubc15\uc2a4<\/strong> ~\uc744 \uc704\ud574 \uccb4\uc778<\/strong>-driven application requires a careful analysis of torque, speed, and radial load capabilities. The VR Series is designed with a broad spectrum of performance characteristics to suit various frame sizes, ranging from the miniature VR-042 to the heavy-duty VR-220. The key to successful integration lies in understanding the relationship between the “Rated Torque” and the “Max Input Speed.” In \uccb4\uc778<\/strong> applications, the drive sprocket is often mounted directly onto the gearbox shaft, creating a significant cantilevered load. The VR Series is engineered to handle these forces without shaft deflection, ensuring longevity. Furthermore, the available \uc720\uc131 \uae30\uc5b4\ubc15\uc2a4 \uae30\uc5b4\ube44<\/strong> options allow for precise speed matching, ensuring your \uccb4\uc778<\/strong> moves at the exact required velocity for your process. The efficiency of these units is exceptional, reaching up to 98% for smaller models, translating to lower energy consumption and reduced heat generation. Please review the tables below, which include both mechanical ratings and Moment of Inertia values, to find the perfect match for your motor and load requirements.<\/p>\n

\"VR<\/p>\n

Table 1: Mechanical Performance Data<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n
Model Specification<\/th>\nVR-042<\/th>\nVR-060<\/th>\nVR-090<\/th>\nVR-115<\/th>\nVR-142<\/th>\nVR-180<\/th>\nVR-220<\/th>\n<\/tr>\n<\/thead>\n
Rated Torque T2N (Nm)<\/td>\n12<\/td>\n28<\/td>\n130<\/td>\n310<\/td>\n650<\/td>\n1050<\/td>\n1800<\/td>\n<\/tr>\n
\ucd5c\ub300 \uc785\ub825 \uc18d\ub3c4(rpm)<\/td>\n6000<\/td>\n6000<\/td>\n4000<\/td>\n3000<\/td>\n3000<\/td>\n2000<\/td>\n2000<\/td>\n<\/tr>\n
Gear Ratio Availability<\/td>\n3, 4, 5, 7, 10 (1-Stage) \/ 15, 20, 25, 30, 35, 40, 50, 70, 100 (2-Stage)<\/td>\n<\/tr>\n
\ubc31\ub798\uc2dc(arcmin)<\/td>\n\u22643<\/td>\n\u22643<\/td>\n\u22643<\/td>\n\u22645<\/td>\n\u22645<\/td>\n\u22645<\/td>\n\u22645<\/td>\n<\/tr>\n
Max Radial Load (N)<\/td>\n780<\/td>\n2400<\/td>\n5500<\/td>\n8000<\/td>\n13500<\/td>\n25000<\/td>\n52000<\/td>\n<\/tr>\n
Torsional Stiffness (Nm\/arcmin)<\/td>\n3<\/td>\n7<\/td>\n14<\/td>\n27<\/td>\n60<\/td>\n150<\/td>\n240<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Table 2: Moment of Inertia (kg\u00b7cm\u00b2)<\/h3>\n
\n\n\n\n\n\n\n\n
\ube44\uc728<\/th>\nVR-042<\/th>\nVR-060<\/th>\nVR-090<\/th>\nVR-115<\/th>\nVR-142<\/th>\nVR-180<\/th>\nVR-220<\/th>\n<\/tr>\n<\/thead>\n
3<\/td>\n0.03<\/td>\n0.16<\/td>\n0.61<\/td>\n3.25<\/td>\n9.21<\/td>\n28.98<\/td>\n69.61<\/td>\n<\/tr>\n
5<\/td>\n0.03<\/td>\n0.14<\/td>\n0.48<\/td>\n2.74<\/td>\n7.54<\/td>\n23.67<\/td>\n54.37<\/td>\n<\/tr>\n
10<\/td>\n0.03<\/td>\n0.13<\/td>\n0.44<\/td>\n2.57<\/td>\n7.03<\/td>\n22.51<\/td>\n50.56<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\uc0ac\uc6a9\uc790 \uc9c0\uc815 \ucc38\uace0 \uc0ac\ud56d:<\/strong> The technical data presented above refers to our standard catalog models, which cover the vast majority of industrial needs. However, we understand that specific industrial \uccb4\uc778<\/strong> applications may require unique configurations. For example, you might need modified output shafts (splined or cross-drilled) for direct sprocket mounting without a coupling, special low-temperature lubricants for cold-chain logistics facilities, or customized adapter flanges to fit specific servo motors from brands like LS Electric or Mitsubishi. If you have unique requirements for your \ubcc0\uc18d\uae30 \uc720\uc131 \uae30\uc5b4\ubc15\uc2a4<\/strong>, please do not hesitate to contact our engineering team. We are dedicated to providing tailored solutions that fit your machine design perfectly, ensuring seamless integration and optimal performance.<\/p>\n<\/section>\n

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Helical Structure: Optimized for Chain Drive Stability<\/h2>\n

Advanced Helical Gearing for Smoother Chains<\/h3>\n

The VR Series distinguishes itself from conventional gearboxes through its adoption of premium helical gearing. In a typical spur gear setup, the teeth engage across the entire face width simultaneously. While this is simple, it creates noise and vibration\u2014vibration that can travel down a \uccb4\uc778<\/strong> drive, causing resonance and premature wear on links and pins. The VR Series utilizes helical gears where the teeth are cut at an angle. This design allows for a gradual engagement of the teeth, starting at one end and sweeping across to the other. This rolling contact significantly increases the contact ratio, meaning more teeth are in mesh at any given time. For a \uace0\ud558\uc911 \uc720\uc131 \uae30\uc5b4\ubc15\uc2a4<\/strong> driving a loaded \uccb4\uc778<\/strong>, this translates to smoother torque transmission, reduced noise (often by 3-5 dB), and a higher load-carrying capacity. The smoother operation minimizes the “whip” effect often seen in long \uccb4\uc778<\/strong> spans, ensuring that products on the conveyor remain stable and positioning remains accurate. This is particularly vital in precision applications where the \uccb4\uc778<\/strong> is used for indexing components under vision systems or robotic arms in Korean electronics factories.<\/p>\n

\"VR<\/p>\n

Integrated Planet Carrier Design<\/h3>\n

At the heart of the VR Series is its robust structural design, specifically the integrated planet carrier. In many lesser gearboxes, the planet carrier is a separate component pressed or keyed onto the output shaft. Under the high cyclic shock loads typical of \uccb4\uc778<\/strong> drives (especially during start\/stop cycles), these joints can loosen or fail over time. The VR Series eliminates this weak point by machining the planet carrier and the output shaft from a single, solid block of material. This monolithic design provides unmatched torsional stiffness. When a servo motor applies torque to accelerate a heavy \uccb4\uc778<\/strong>, the energy is transferred instantly without “wind-up” or elasticity in the gearbox. This high stiffness is critical for applications requiring precise synchronization, such as dual-drive gantry systems where two \uc1e0\uc0ac\uc2ac<\/strong> must move in perfect unison to prevent jamming. Furthermore, the carrier is supported by dual heavy-duty bearings that span the length of the housing, maximizing the gearbox’s ability to withstand the radial forces generated by the sprocket and \uccb4\uc778<\/strong> tension, ensuring a long and maintenance-free service life.<\/p>\n

<\/div>\n<\/section>\n
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Industrial Applications in South Korea<\/h2>\n

The VR Series has found widespread adoption across South Korea’s diverse industrial sectors, proving its worth in applications where reliability is non-negotiable. In the automotive sector, specifically in assembly plants in Ulsan and Busan, the VR Series functions as a critical \uc720\uc131 \uac10\uc18d \uae30\uc5b4\ubc15\uc2a4<\/strong> for overhead friction drive conveyors and floor-mounted skid conveyors. These systems utilize heavy-duty drag \uc1e0\uc0ac\uc2ac<\/strong> to move vehicle bodies through welding and painting stations. The gearbox’s high torque density allows it to fit into tight spaces within the conveyor frame while providing the immense force needed to move tons of steel. The precision of the VR gearbox ensures that the vehicle bodies are positioned exactly right for robotic interaction, reducing cycle times and minimizing welding errors. The rugged design withstands the stop-and-go nature of the assembly line without overheating or losing accuracy.<\/p>\n

\"VR<\/p>\n

In the logistics and warehousing industry, particularly in the smart distribution centers surrounding Seoul, the VR Series drives high-speed sorting systems and vertical lift modules (VLMs). These machines rely on timing belts and precision roller \uc1e0\uc0ac\uc2ac<\/strong> to move goods vertically and horizontally at high speeds. The low backlash of the VR Series is essential here; it ensures that the shelf or bin stops at the precise level required for retrieval, preventing jams and damage to goods. Furthermore, in the agricultural machinery sector, the VR Series is used in automated harvesting equipment. Driving the gathering \uc1e0\uc0ac\uc2ac<\/strong> and sorting belts, the gearbox must endure dust, vibration, and variable loads. Its sealed IP65 construction and robust output bearings make it an ideal choice for these harsh environments, ensuring that the harvest continues without costly downtime due to transmission failure. The ability to select the exact \uc720\uc131 \uae30\uc5b4\ubc15\uc2a4 \uae30\uc5b4\ube44<\/strong> allows manufacturers to optimize the speed of the \uccb4\uc778<\/strong> for different crops, enhancing yield and efficiency.<\/p>\n<\/section>\n

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Complete Your Chain Drive System<\/h2>\n

A gearbox is only one component of a successful motion control system. To achieve maximum performance and longevity, the entire drivetrain\u2014from the motor to the \uccb4\uc778<\/strong>\u2014must be harmonized. Ever-Power offers a comprehensive suite of complementary products designed to integrate seamlessly with the VR Series gearbox. We strongly recommend pairing our gearboxes with our high-quality **Drive Shafts**. A precision-balanced drive shaft<\/a> with appropriate flexible couplings can compensate for minor misalignments between the gearbox and the machine frame, significantly reducing the load on the gearbox bearings and extending its life. We offer a variety of shaft types, including cardan shafts for offset drives and rigid spline shafts for high-torque connections, ensuring you have the right link for your specific layout.<\/p>\n

\"pls<\/div>\n

Most importantly, as the central element of your application, the **Chain** itself must be of the highest quality. We supply a vast range of industrial chains, including ANSI and ISO standard roller chains, double-pitch conveyor chains, and specialty attachment chains. Our chains are pre-stretched and manufactured with hardened pins and bushings to resist wear and elongation. When you source your **transmission \uc720\uc131 \uae30\uc5b4\ubc15\uc2a4<\/a>**, sprockets, and **chain** from a single supplier like Ever-Power, you ensure geometric compatibility. Our engineers can calculate the exact sprocket diameter and chain pitch required to match your selected gearbox ratio, guaranteeing a smooth, quiet, and efficient drive system. Don’t let a low-quality chain compromise the precision of your VR Series gearbox\u2014upgrade to a complete Ever-Power system today for unmatched reliability in your Korean operations.<\/p>\n<\/section>\n

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Ever-Power\ub97c \uc120\ud0dd\ud574\uc57c \ud558\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc77c\uae4c\uc694?<\/h2>\n

Ever-Power is not just a manufacturer; we are a strategic partner in your success. With over 20 years of experience in the power transmission industry, we have established ourselves as a leader in providing high-precision solutions like the VR Series. Our manufacturing facilities are equipped with state-of-the-art CNC gear hobbing and grinding machines, ensuring that every gear tooth is shaped to micron-level perfection. This commitment to quality is why our **heavy duty planetary gearbox** products are trusted by major OEMs globally. We adhere to strict ISO 9001 quality management standards, and every unit undergoes rigorous testing for backlash, noise, and concentricity before it leaves our factory. We utilize only the highest quality seals and lubricants, ensuring that our gearboxes can perform reliably in the varied climates and operating conditions found across South Korea.<\/p>\n

For our customers in South Korea, we offer a distinct advantage: localized support and logistics. We understand the fast-paced nature of Korean industry and the high cost of downtime. That’s why we have optimized our supply chain to ensure rapid delivery of standard units and spare parts. Our technical support team is well-versed in the specific needs of Korean manufacturers, offering consultation on motor matching, lifetime calculation, and **planetary gearbox gear ratio** selection. We believe in transparency and long-term partnership. When you choose Ever-Power, you get more than a product; you get a dedicated team of experts ready to solve your transmission challenges.<\/p>\n

\"\uacf5\uc7a5-1\"<\/p>\n<\/section>\n

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\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38(FAQ)<\/h2>\n
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Q1: What is the main advantage of using the VR Series for chain drives?<\/p>\n

The VR Series uses helical gears which provide smoother engagement than spur gears. This reduces the vibration and noise often associated with **chain** drives, extending the life of both the gearbox and the chain.<\/p>\n<\/div>\n

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Q2: Can I mount a chain sprocket directly to the VR gearbox output shaft?<\/p>\n

Yes, the VR Series is designed as a **heavy duty planetary gearbox** with oversized output bearings specifically to handle the high radial loads created by direct-mounted sprockets.<\/p>\n<\/div>\n

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Q3: How do I select the correct planetary gearbox gear ratio for my conveyor?<\/p>\n

You need to know your motor speed and the desired linear speed of the **chain**. Our engineering team can help you calculate the exact ratio to ensure optimal torque and speed.<\/p>\n<\/div>\n

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Q4: Is the VR Series compatible with servo motors from Korean brands?<\/p>\n

Absolutely. We provide flexible input flange adapters that fit almost any servo motor, including brands popular in Korea like LS Electric, Mitsubishi, and Yaskawa.<\/p>\n<\/div>\n

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Q5: What maintenance does the VR planetary reduction gearbox require?<\/p>\n

The VR Series is sealed (IP65) and lubricated for life with high-grade synthetic grease. It generally requires no maintenance, unlike open **chain** systems that need regular oiling.<\/p>\n<\/div>\n

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Q6: Can you supply the drive chain and sprockets as well?<\/p>\n

Yes, Ever-Power is a one-stop solution provider. We can supply the gearbox, drive shafts, customized sprockets, and the industrial **chain** to ensure complete system compatibility.<\/p>\n<\/div>\n

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Q7: \ud55c\uad6d\uae4c\uc9c0\uc758 \ubc30\uc1a1 \uae30\uac04\uc740 \uc5bc\ub9c8\ub098 \uac78\ub9ac\ub098\uc694?<\/p>\n

For standard models, we typically ship within 3-5 business days. Our logistics partners ensure fast delivery to major Korean industrial hubs like Incheon and Busan.<\/p>\n<\/div>\n

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Q8: How does temperature affect the gearbox performance?<\/p>\n

Standard units operate from -10\u00b0C to +90\u00b0C. For cold-chain logistics applications, we can supply units with special low-temperature grease.<\/p>\n<\/div>\n

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Q9: What is the difference between P1 and P2 backlash?<\/p>\n

P2 is standard precision (\u22645-7 arcmin), suitable for general transport. P1 is high precision (\u22643-5 arcmin), recommended for precise positioning tasks like **chain** indexing.<\/p>\n<\/div>\n

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Q10: Can I get a 3D model of the gearbox?<\/p>\n

Yes, we provide full CAD models (STEP\/IGES) so you can integrate the gearbox into your machine design and check clearances with the **chain** path.<\/p>\n<\/div>\n

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Q11: Does the gearbox produce a lot of noise?<\/p>\n

No, thanks to the helical gears and high-precision machining, the VR Series is very quiet, typically operating below 65dB, often quieter than the **chain** drive itself.<\/p>\n<\/div>\n<\/section>\n

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\uace0\uac1d \ub9ac\ubdf0<\/h2>\n
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Song Hye-jin, Vegetable Farm Manager, Gyeonggi-do (Late 2024)<\/p>\n

\u201cWe use the VR-115 for our large-scale carrot and onion fields. The machine uses a heavy **chain** drive for the planting mechanism. The 2.4 m width is perfect for our row spacing, and the depth control provided by the gearbox is precise to the centimeter. The machine leaves perfectly uniform material that our planting machines love. Local parts delivery is next-day \u2014 never had downtime. Already planning to buy a second unit next season.\u201d<\/p>\n<\/div>\n

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Kim Min-su, Automation Engineer, Ulsan (January 2025)<\/p>\n

\u201cWe retrofitted our car chassis conveyor line with VR Series gearboxes. The old spur gearboxes were too noisy and caused vibration in the drag **chain**. The VR helical gearboxes are incredibly smooth. We matched the \uc720\uc131 \uae30\uc5b4\ubc15\uc2a4 \uae30\uc5b4\ube44<\/strong> perfectly to our line speed. The robust output shaft handles the heavy chain tension without any issues. Highly recommended.\u201d<\/p>\n<\/div>\n

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Park Ji-hoon, Logistics Manager, Incheon (December 2024)<\/p>\n

\u201cFast shipping to Korea was the deciding factor for us. We needed a replacement **transmission planetary gearbox** for a sorting machine **chain** drive. Ever-Power delivered in 4 days. The VR-090 fit perfectly. The quality looks solid, comparable to German brands but at a much better price point.\u201d<\/p>\n<\/div>\n

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Choi Soo-min, Equipment Manufacturer, Daegu (February 2025)<\/p>\n

\u201cI build custom packaging machines. I love the concentric design of the VR Series; it makes mounting the motor and the **chain** sprocket inline very easy. It saves space in the machine cabinet. The backlash is extremely low, which helps with the precision indexing of the packaging film.\u201d<\/p>\n<\/div>\n

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Lee Dong-wook, Maintenance Lead, Busan (November 2024)<\/p>\n

\u201cWe use the VR-180 for a heavy bucket elevator **chain**. The radial load on the shaft is huge, but this **heavy duty planetary gearbox** handles it with ease. We’ve been running it 24\/7 for 6 months with zero issues. The service team helped us confirm the load calculations before purchase. Great support.\u201d<\/p>\n<\/div>\n<\/section>\n

\ud3b8\uc9d1\uc790: Cxm<\/div>\n<\/div>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

Discover the VR Series high precision planetary gearbox, optimized for chain transmission systems. With concentric axis design, gear ratios from 3:1 to 100:1, and torque up to 500 Nm, it ensures smooth, reliable performance in heavy duty applications like robotics and automation. Ever-Power provides durable solutions tailored for Korean industries\u2014contact us for custom configurations.<\/p>","protected":false},"featured_media":414,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[963],"product_tag":[],"class_list":["post-413","product","type-product","status-publish","has-post-thumbnail","product_cat-high-precision-planetary-gearbox","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/planetary-gearboxes.com\/ko\/wp-json\/wp\/v2\/product\/413","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/planetary-gearboxes.com\/ko\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/planetary-gearboxes.com\/ko\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/ko\/wp-json\/wp\/v2\/comments?post=413"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/ko\/wp-json\/wp\/v2\/media\/414"}],"wp:attachment":[{"href":"https:\/\/planetary-gearboxes.com\/ko\/wp-json\/wp\/v2\/media?parent=413"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/ko\/wp-json\/wp\/v2\/product_brand?post=413"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/ko\/wp-json\/wp\/v2\/product_cat?post=413"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/ko\/wp-json\/wp\/v2\/product_tag?post=413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}