{"id":1137,"date":"2026-08-27T08:28:51","date_gmt":"2026-08-27T08:28:51","guid":{"rendered":"https:\/\/www.farm-equipment-parts.com\/?post_type=product&p=1137"},"modified":"2026-08-27T09:02:20","modified_gmt":"2026-08-27T09:02:20","slug":"flange-ground-helical-gear","status":"publish","type":"product","link":"https:\/\/www.farm-equipment-parts.com\/nl\/product\/flange-ground-helical-gear\/","title":{"rendered":"Flange Ground Helical Gear"},"content":{"rendered":"
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Precision Helical Transmission \u00b7 UK Supply<\/div>\n

Flange Ground Helical Gear<\/h2>\n

DIN6 Grade 5 precision | 20CrMnTi alloy | HRC 55\u201360 surface hardness \u2014 engineered for demanding automation and linear motion systems across the UK industrial sector.<\/p>\n

\ud83d\udce7 Get a Quote Now<\/a><\/p>\n<\/div>\n

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Product Overview<\/div>\n

\"FlangeWhat Makes This Gear Different?<\/h2>\n

The flange ground helical gear is a highly engineered component used wherever smooth power transmission and positional accuracy matter. Ground tooth flanks give it an edge over standard cut gears \u2014 reduced noise, tighter tolerances, and a substantially longer service life in repetitive-cycle environments. Whether you are running a CNC machining centre in Birmingham, a packaging line in Manchester, or a robotics cell in the East Midlands, this gear delivers the repeatability your process demands. Its flange-mount design simplifies integration into rack-and-pinion drives without additional adapters, saving both engineering time and assembly cost.<\/p>\n

Module 2<\/span>
\nDIN6 Grade 5<\/span>
\nHRC 55\u201360<\/span><\/div>\n<\/div>\n<\/div>\n
\n
\n

Ready to source flange ground helical gears for your UK project?<\/p>\n

Custom modules, bore sizes, and coatings available on request.<\/p>\n<\/div>\n

Get a Quote<\/a><\/p>\n<\/div>\n

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Engineering Data<\/div>\n

Technical Specifications<\/h2>\n

All data verified against factory drawings. Dimensions in millimetres unless otherwise stated.<\/p>\n

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\n

Technical Requirements<\/p>\n\n\n\n\n\n\n\n\n
Precision Grade<\/td>\nDIN6 International Grade 5<\/td>\n<\/tr>\n
Material<\/td>\n20CrMnTi alloy steel<\/td>\n<\/tr>\n
Tooth Type<\/td>\nHelical tooth<\/td>\n<\/tr>\n
Helix Angle<\/td>\n19 deg 31′ 42″<\/td>\n<\/tr>\n
Surface Hardness<\/td>\nCarburized HRC 55\u201360<\/td>\n<\/tr>\n
Manufacturing<\/td>\nTooth surface grinding<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
<\/div>\n<\/div>\n

YMCLK Series \u2014 Flange Ground Helical Gear (Unit: mm)<\/h3>\n

\"FLANGE<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Code<\/th>\nModule<\/th>\nTooth No.<\/th>\nAH6<\/th>\nBH6<\/th>\nC<\/th>\nD<\/th>\nE<\/th>\nF<\/th>\nG<\/th>\nH<\/th>\nI<\/th>\nJ<\/th>\n<\/tr>\n<\/thead>\n
YMCLK26<\/td>\n2<\/td>\n26<\/td>\n15<\/td>\n20<\/td>\n55.174<\/td>\n60.800<\/td>\n26<\/td>\n29.0<\/td>\n5.5<\/td>\n10<\/td>\n12<\/td>\n31.5<\/td>\n<\/tr>\n
YMCLK27<\/td>\n2<\/td>\n27<\/td>\n15<\/td>\n20<\/td>\n57.296<\/td>\n61.296<\/td>\n30<\/td>\n33.5<\/td>\n5.5<\/td>\n10<\/td>\n11<\/td>\n31.5<\/td>\n<\/tr>\n
YMCLK29<\/td>\n2<\/td>\n29<\/td>\n15<\/td>\n20<\/td>\n61.540<\/td>\n67.200<\/td>\n26<\/td>\n29.0<\/td>\n5.5<\/td>\n10<\/td>\n12<\/td>\n31.5<\/td>\n<\/tr>\n
YMCLK35<\/td>\n2<\/td>\n35<\/td>\n15<\/td>\n20<\/td>\n74.272<\/td>\n79.800<\/td>\n26<\/td>\n29.0<\/td>\n5.5<\/td>\n10<\/td>\n12<\/td>\n31.5<\/td>\n<\/tr>\n
YMCLK29-20<\/td>\n2<\/td>\n29<\/td>\n20<\/td>\n25<\/td>\n61.540<\/td>\n67.200<\/td>\n26<\/td>\n30.0<\/td>\n6.6<\/td>\n11<\/td>\n14<\/td>\n40<\/td>\n<\/tr>\n
YMCLK33<\/td>\n2<\/td>\n33<\/td>\n20<\/td>\n31.5<\/td>\n70.028<\/td>\n75.599<\/td>\n26<\/td>\n30.0<\/td>\n6.6<\/td>\n11<\/td>\n14<\/td>\n50<\/td>\n<\/tr>\n
YMCLK35<\/td>\n2<\/td>\n35<\/td>\n20<\/td>\n31.5<\/td>\n74.300<\/td>\n79.500<\/td>\n26<\/td>\n30<\/td>\n6.6<\/td>\n11<\/td>\n14<\/td>\n50<\/td>\n<\/tr>\n
YMCLK36<\/td>\n2<\/td>\n36<\/td>\n20<\/td>\n31.5<\/td>\n76.394<\/td>\n80.394<\/td>\n30<\/td>\n34.0<\/td>\n6.6<\/td>\n11<\/td>\n8<\/td>\n50<\/td>\n<\/tr>\n
YMCLK37<\/td>\n2<\/td>\n37<\/td>\n20<\/td>\n31.5<\/td>\n78.517<\/td>\n84.200<\/td>\n26<\/td>\n30.0<\/td>\n6.6<\/td>\n11<\/td>\n14<\/td>\n50<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

YMCL Series \u2014 Flange Ground Helical Gear (Unit: mm)<\/h3>\n

\"Flange<\/p>\n

\n\n\n\n\n\n\n
Code<\/th>\nModule<\/th>\nTooth No.<\/th>\nd1H6<\/th>\nd2<\/th>\nd3<\/th>\nd4<\/th>\nd5<\/th>\nd6<\/th>\nd7<\/th>\nW1<\/th>\nW2<\/th>\nW3<\/th>\nW4<\/th>\nDH6<\/th>\nD1<\/th>\n<\/tr>\n<\/thead>\n
YMCL37<\/td>\n2<\/td>\n37<\/td>\n31.500<\/td>\n63<\/td>\n78.52<\/td>\n35<\/td>\n20<\/td>\n1.1<\/td>\n6.6<\/td>\n14<\/td>\n24<\/td>\n34<\/td>\n40<\/td>\n6<\/td>\n50<\/td>\n<\/tr>\n
YMCL40<\/td>\n2<\/td>\n40<\/td>\n31.500<\/td>\n63<\/td>\n84.88<\/td>\n35<\/td>\n21<\/td>\n1.1<\/td>\n6.4<\/td>\n14<\/td>\n26<\/td>\n31<\/td>\n37<\/td>\n6<\/td>\n50<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
\n
Technology & Materials<\/div>\n

How the Flange Ground Helical Gear Works<\/h2>\n
\n
\n
\u2699<\/div>\n

Operating Principle<\/h3>\n

Helical gears transmit rotation between parallel shafts with tooth engagement that progresses gradually along the tooth face rather than all at once. This staggered contact distributes load over more tooth surface area at any given instant, translating directly to lower vibration, quieter running, and superior torque capacity compared to spur gears of equivalent size. The ground tooth surface on this flange variant refines that geometry to within DIN6 Grade 5 tolerances, meaning pitch error and tooth profile error are held to fractions of a micrometre \u2014 critical for servo-driven positioning systems where backlash directly impacts accuracy.<\/p>\n<\/div>\n

\n
\ud83d\udd28<\/div>\n

20CrMnTi Alloy Steel<\/h3>\n

The choice of 20CrMnTi is deliberate. This chromium-manganese-titanium alloy offers an excellent combination of core toughness and surface hardenability. After carburizing and quenching, the tooth flanks reach HRC 55\u201360 while the gear body retains meaningful impact resistance \u2014 preventing the brittle fracture that can occur in fully hardened components under shock loading. For UK manufacturing environments where production schedules cannot accommodate unplanned downtime, this material selection is a practical insurance policy as much as a performance specification.<\/p>\n<\/div>\n

\n
\ud83c\udfed<\/div>\n

Application Scenarios<\/h3>\n

Flange ground helical gears are specified across a broad range of high-precision applications. In CNC machining centres and multi-axis gantries, they form the drive pinion in rack-and-pinion assemblies alongside a Rectangular Guide Rail or a V-Type Ground Helical Guide Rack. They also appear in robotic arm joints, precision laser cutting tables, automated warehouse retrieval systems, and high-cycle packaging equipment \u2014 any scenario where smooth, repeatable linear or rotary positioning is non-negotiable.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Why Choose This Gear<\/div>\n

6 Engineering Advantages Worth Knowing<\/h2>\n
\n
\n

DIN5<\/p>\n

Grade 5 precision \u2014 tighter than the industry standard for comparable ground gears<\/p>\n<\/div>\n

\n

HRC60<\/p>\n

Peak surface hardness after carburizing, extending tooth wear life significantly<\/p>\n<\/div>\n

\n

Low dB<\/p>\n

Helical tooth geometry reduces impulse noise vs. spur equivalents at the same pitch speed<\/p>\n<\/div>\n

\n

Flange<\/p>\n

Integrated flange mount cuts assembly time and eliminates the need for separate adapters<\/p>\n<\/div>\n

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Custom<\/p>\n

Non-standard bore, keyway, module, and coating options available from factory<\/p>\n<\/div>\n

\n

Stock UK<\/p>\n

Common YMCLK and YMCL series codes held for fast dispatch to mainland UK addresses<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Related Components<\/div>\n

Products That Work Alongside This Gear<\/h2>\n

A flange ground helical gear rarely operates in isolation. Matching it with the correct guide rail or rack ensures the complete drive system meets the accuracy and load ratings your application demands. The two products below are designed to complement this gear directly and are stocked in the same facility, simplifying procurement and reducing lead times for UK buyers.<\/p>\n

\n
\n
\u23af<\/div>\n

Rectangular Guide Rail<\/a><\/h3>\n

Provides the linear reference surface for rack-and-pinion drives. Designed for high load and rigidity, compatible with this gear’s flange-mount geometry.<\/p>\n

View Product \u2192<\/a><\/p>\n<\/div>\n

\n
\ud83d\udd03<\/div>\n

V-Type Ground Helical Guide Rack<\/a><\/h3>\n

Ground helical rack that meshes directly with this gear series. V-type geometry aids self-alignment and reduces installation sensitivity for CNC gantries and automation slides.<\/p>\n

View Product \u2192<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n

\n
Customer Success<\/div>\n

How UK Manufacturers Are Using This Gear<\/h2>\n

The following case reflects a real supply project completed with a UK-based industrial customer. Details have been summarised for commercial confidentiality.<\/p>\n

\n
Case Study<\/span>
\nMidlands, UK \u00b7 Automated Pallet Transfer System \u00b7 2024<\/span><\/div>\n

Reducing Drive Noise on a High-Cycle Conveyor Line<\/h3>\n

A contract manufacturer producing automotive sub-assemblies in Coventry ran into persistent noise and premature wear on their pallet shuttle system after just eight months of operation. The original spur-cut pinions had been sourced locally on price alone. After switching to YMCLK35 flange ground helical gears<\/a> paired with a V-Type Ground Helical Guide Rack, noise levels dropped measurably and the first inspection at 12 months showed tooth surfaces within original tolerance. The customer now sources YMCLK33 and YMCLK35 codes on a quarterly call-off contract, having standardised on this gear series across three production cells.<\/p>\n<\/div>\n

\n
\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n

“We specified YMCLK36 for a new laser gantry build and the dimensional accuracy was exactly as stated. The flange fit straight to our servo output without any rework \u2014 that saved us a full day of machining. Will be using these on the next three machines.”<\/p>\n

\u2014 Design Engineer, Yorkshire CNC Integrator<\/p>\n<\/div>\n

\n
\u2605\u2605\u2605\u2605\u2605<\/div>\n

“Price per unit was competitive compared to European alternatives, and lead time from order to delivery at our Gloucester facility was under three weeks. The surface finish on the tooth flanks is notably better than what we had been buying. Backlash is within spec with no adjustment needed.”<\/p>\n

\u2014 Procurement Manager, South West Automation Company<\/p>\n<\/div>\n

\n
\u2605\u2605\u2605\u2605\u2606<\/div>\n

“We needed a non-standard bore on YMCL40 and the team at Ever-Power accommodated the modification without a significant price uplift or extended lead time. Technical drawings were provided promptly. Good communication throughout \u2014 would not hesitate to request custom specs again.”<\/p>\n

\u2014 R&D Lead, Scottish Robotics OEM<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Manufacturing Capability<\/div>\n

Factory-Direct with Full Customisation Service<\/h2>\n

Every flange ground helical gear leaves our production facility already inspected against DIN6 Grade 5 using CMM verification and surface roughness testing. The factory operates dedicated gear grinding lines configured for helical tooth forms, which means profile and lead tolerances are held consistently across production batches \u2014 not just on sample pieces. Beyond standard catalogue codes, the engineering team handles a substantial volume of custom orders each month. Common modifications requested by UK customers include alternative bore diameters and keyway configurations, module changes (typically M1.5 to M4), bespoke hub lengths for specific servo motor interfaces, and black oxide or phosphate coatings for improved corrosion resistance in humid workshop environments. Quantities from single prototypes through to production runs of several hundred pieces are all within normal scope. If your drawing calls for something outside the standard range, send your specification to our team and a technical response is provided within one working day.<\/p>\n

\ud83d\udce7 Get a Quote for Custom Gear<\/a><\/p>\n<\/div>\n

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

Common Questions from UK Buyers<\/h2>\n
\n
\nWhat is the price of a flange ground helical gear for a CNC automation project in the UK, and how do I get a quote? +<\/span><\/summary>\n

Pricing varies by code, quantity, and any customisation required. For standard YMCLK and YMCL series codes, email sales@farm-equipment-parts.com<\/a> with your code number and required quantity and a price will be returned within one working day. Volume discounts apply from 10 pieces upward.<\/p>\n<\/details>\n

\nWhich flange ground helical gear module is compatible with a V-type ground helical guide rack for a UK-built gantry system? +<\/span><\/summary>\n

Both the YMCLK and YMCL series are manufactured in Module 2. They are designed to mesh directly with the Module 2 V-Type Ground Helical Guide Rack<\/a> in our range. If your rack is a different module, confirm the module value before ordering and we can advise on compatibility.<\/p>\n<\/details>\n

\nHow long does it take to ship flange ground helical gears from your factory to a UK manufacturing site? +<\/span><\/summary>\n

Standard catalogue codes are typically dispatched within 3\u20135 working days. Air freight to UK addresses normally adds 5\u20137 working days, meaning most standard orders arrive within two weeks of order confirmation. Express options are available for urgent requirements.<\/p>\n<\/details>\n

\nCan I get a flange ground helical gear with a custom bore size to fit a specific servo motor shaft in my UK robotics application? +<\/span><\/summary>\n

Yes. Custom bore sizes, keyway dimensions, and hub lengths are a routine part of our order book. Send your drawing or dimension table to sales@farm-equipment-parts.com<\/a> and we will confirm feasibility and lead time. Single prototype quantities are accepted.<\/p>\n<\/details>\n

\nWhat precision grade are your flange ground helical gears and how does that compare with DIN standards used in UK engineering? +<\/span><\/summary>\n

Our flange ground helical gears are manufactured to DIN6 Grade 5. In the DIN 3962 and 3963 system, Grade 5 represents high-precision ground quality, meaning pitch error and tooth profile deviation are held to values that meet the demands of servo-driven CNC and robotics applications. This is the grade commonly specified in UK machine tool and automation standards.<\/p>\n<\/details>\n

\nWhere can I buy flange ground helical gears for industrial automation in the UK and what is the minimum order quantity? +<\/span><\/summary>\n

You can enquire directly through this page or email sales@farm-equipment-parts.com<\/a>. There is no enforced minimum order quantity \u2014 single pieces are accepted for prototype and maintenance replacement purposes, though volume pricing is available from 10 pieces.<\/p>\n<\/details>\n<\/div>\n<\/div>\n

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Ready to Place Your Order or Request a Sample?<\/h2>\n

Our technical team is ready to support UK engineering and procurement teams with specifications, custom drawings, and competitive pricing.<\/p>\n

\ud83d\udce7 Contact sales@farm-equipment-parts.com<\/a><\/p>\n<\/div>\n<\/div>\n

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

Module 2 flange ground helical gear \u2014 DIN6 Grade 5, 20CrMnTi, HRC 55\u201360 carburized. YMCLK & YMCL series for CNC gantries, robotics, automation lines.<\/p>","protected":false},"featured_media":1140,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[1578],"product_tag":[],"class_list":["post-1137","product","type-product","status-publish","has-post-thumbnail","product_cat-gear-racks","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.farm-equipment-parts.com\/nl\/wp-json\/wp\/v2\/product\/1137","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.farm-equipment-parts.com\/nl\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.farm-equipment-parts.com\/nl\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.farm-equipment-parts.com\/nl\/wp-json\/wp\/v2\/comments?post=1137"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.farm-equipment-parts.com\/nl\/wp-json\/wp\/v2\/media\/1140"}],"wp:attachment":[{"href":"https:\/\/www.farm-equipment-parts.com\/nl\/wp-json\/wp\/v2\/media?parent=1137"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.farm-equipment-parts.com\/nl\/wp-json\/wp\/v2\/product_brand?post=1137"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.farm-equipment-parts.com\/nl\/wp-json\/wp\/v2\/product_cat?post=1137"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.farm-equipment-parts.com\/nl\/wp-json\/wp\/v2\/product_tag?post=1137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}