{"id":1995,"date":"2026-09-18T03:21:41","date_gmt":"2026-09-18T03:21:41","guid":{"rendered":"https:\/\/superiortransmissioninc.com\/?post_type=product&p=1995"},"modified":"2026-09-18T06:03:36","modified_gmt":"2026-09-18T06:03:36","slug":"ep-plastic-spur-gears-with-steel-core","status":"publish","type":"product","link":"https:\/\/superiortransmissioninc.com\/kk\/product\/ep-plastic-spur-gears-with-steel-core\/","title":{"rendered":"EP-Plastic Spur Gears with Steel Core"},"content":{"rendered":"
\n
\n

HYBRID DRIVE COMPONENTS \u2014 SPUR GEAR SERIES<\/p>\n

EP-Plastic Spur Gears with Steel Core<\/h2>\n

A structurally superior plastic spur gear<\/strong> format \u2014 MC602ST polymer body over a precision S45C steel core, delivering the corrosion immunity of engineering plastics alongside the dimensional rigidity and bore strength only metal can provide.<\/p>\n

Spur Gear\u00a0<\/a><\/div>\n<\/div>\n<\/div>\n
<\/div>\n
<\/div>\n
\n

Technical Specifications \u2014 NSU1-50 Reference Configuration<\/h2>\n

All dimensions in millimetres unless stated. Additional modules, tooth counts, and bore sizes available on request through the custom spur gears programme.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Plastic Spur GearsParameter<\/th>\nNSU1-50 Value<\/th>\nNotes \/ Standard<\/th>\n<\/tr>\n<\/thead>\n
\u041c\u043e\u0434\u0443\u043b\u044c<\/td>\nM1<\/td>\nMetric involute<\/td>\n<\/tr>\n
\u0422\u0456\u0441\u0442\u0435\u0440 \u0441\u0430\u043d\u044b<\/td>\n50<\/td>\nStandard full depth<\/td>\n<\/tr>\n
Shape (Hub Form)<\/td>\nS1<\/td>\nWith steel core<\/td>\n<\/tr>\n
Bore (A)<\/td>\n\u00d810 mm<\/td>\nSteel core bore<\/td>\n<\/tr>\n
Hub Diameter (B)<\/td>\n\u00d830 mm<\/td>\nS45C steel hub<\/td>\n<\/tr>\n
Pitch Diameter (C)<\/td>\n\u00d850 mm<\/td>\nModule \u00d7 Teeth<\/td>\n<\/tr>\n
Outside Diameter (D)<\/td>\n\u00d852 mm<\/td>\nMC602ST tooth tip<\/td>\n<\/tr>\n
Face Width (E)<\/td>\n10 mm<\/td>\nTooth contact width<\/td>\n<\/tr>\n
Hub Width (F)<\/td>\n10 mm<\/td>\nSteel core length<\/td>\n<\/tr>\n
Total Length (G)<\/td>\n20 mm<\/td>\nHub + tooth body<\/td>\n<\/tr>\n
Metal Core Diameter<\/td>\n34 mm<\/td>\nS45C insert OD<\/td>\n<\/tr>\n
Series Code<\/td>\n12<\/td>\nEP NSU series<\/td>\n<\/tr>\n
Backlash Low<\/td>\n0 mm<\/td>\nMinimum clearance<\/td>\n<\/tr>\n
Backlash Up<\/td>\n0.34 mm<\/td>\nMaximum clearance<\/td>\n<\/tr>\n
Material \u2014 Tooth<\/td>\nMC602ST<\/td>\nCast nylon polymer<\/td>\n<\/tr>\n
Material \u2014 Core<\/td>\nS45C steel<\/td>\nMedium-carbon steel<\/td>\n<\/tr>\n
\u0422\u0456\u0441 \u049b\u0430\u0442\u0442\u044b\u043b\u044b\u0493\u044b<\/td>\n115 \u2013 120 HRR<\/td>\nAs moulded, no heat treatment<\/td>\n<\/tr>\n
Pressure Angle<\/td>\n20\u00b0<\/td>\nStandard involute<\/td>\n<\/tr>\n
Precision Grade<\/td>\nJIS N9 \/ JIS Grade 5<\/td>\nJIS B1702-1:1998 \/ JIS B1702:1976<\/td>\n<\/tr>\n
Quality Certification<\/td>\nISO 9001:2015<\/td>\nFactory-wide QMS<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
<\/div>\n
<\/div>\n
\n
\n

What Makes a Steel-Core Plastic Spur Gear Different?<\/h2>\n

The EP-Plastic Spur Gears with Steel Core series represents a deliberate engineering compromise in the best sense of the word. A standard all-polymer plastic spur gear<\/strong> offers weight savings, corrosion resistance, and self-lubricating properties \u2014 but it carries a structural limitation at the bore. Pressed or interference-fit plastic hubs can creep under torque, loosen on shafts over time, and crack under heavy radial overhang loads. The steel-core design eliminates all three failure modes by replacing the plastic hub with a precision-machined S45C medium-carbon steel insert, over which the MC602ST engineering polymer tooth body is moulded or pressed.<\/p>\n

The result is a plastic spur gear<\/strong> that genuinely bridges two material worlds. The tooth flank and addendum region \u2014 the areas where corrosion and lubrication matter most \u2014 remain polymer, giving the gear its quiet operation, chemical resistance, and freedom from galling. The bore, hub, and shaft interface, where clamp loads and keyway stresses concentrate, are handled entirely by the steel core, rated at a tooth hardness range of 115 to 120 HRR in the as-moulded condition. This architecture makes the steel-core variant the preferred selection wherever a standard all-plastic spur gear would be borderline on shaft retention or fatigue life.<\/p>\n

Our EP series covers product number NSU1-50 as a representative configuration, with module M1, 50 teeth, bore (A) of 10 mm, hub diameter (B) of 30 mm, pitch diameter (C) of 50 mm, outside diameter (D) of 52 mm, face width (E) of 10 mm, hub width (F) of 10 mm, and total length (G) of 20 mm. Metal core diameter is 34 mm with a series code of 12. Backlash tolerance runs from 0 mm (low) to 0.34 mm (up), meeting JIS grade N9 (JIS B1702-1: 1998) and JIS grade 5 (JIS B1702: 1976) precision standards.<\/p>\n<\/div>\n<\/div>\n

\"worm<\/p>\n

\n
\n

Five Defining Advantages of the Plastic Spur Gears Design<\/h2>\n
\n
\n

\u2460 Enhanced Bore and Shaft Retention<\/h3>\n

The S45C steel core provides a rigid metal-to-shaft interface that prevents the bore creep and hub loosening seen in all-polymer gears under sustained torque. Keyway slots, set-screw flats, and tight H7 bore tolerances can all be applied to the steel insert without risk of cracking \u2014 a limitation that affects both nylon spur gears and acetal spur gears when machined in plastic alone.<\/p>\n<\/div>\n

\n

\u2461 Controlled Backlash Across Service Life<\/h3>\n

Backlash in all-plastic gears tends to increase as the polymer creeps and the bore fit relaxes. With the steel core locking dimensional stability at the shaft interface, backlash in the EP steel-core plastic spur gear<\/strong> stays within the 0 mm to 0.34 mm design envelope throughout normal service life \u2014 a critical advantage in positioning systems and differential spur gear stages where repeatability is a primary specification.<\/p>\n<\/div>\n

\n

\u2462 Higher Torque Capacity at the Same Outer Diameter<\/h3>\n

Because the bore load path runs through steel rather than polymer, the permissible transmitted torque for a given outer diameter is significantly higher than an all-plastic equivalent. This allows designers to use a smaller-diameter plastic spur gear<\/strong> where an all-plastic gear would require a larger spur gear blank \u2014 reducing package size without sacrificing reliability, particularly useful when designing spur gears into compact gearbox stages.<\/p>\n<\/div>\n

\n

\u2463 Polymer Tooth Benefits Fully Retained<\/h3>\n

The MC602ST tooth profile preserves every property that makes a plastic spur gear<\/strong> worth specifying: self-lubrication, low mesh noise, chemical resistance to mild acids and coolants, and significant weight advantage over steel spur gears or stainless steel spur gears of equal pitch diameter. The steel core adds structural depth without changing the tooth’s operating characteristics at the mesh point.<\/p>\n<\/div>\n

\n

\u2464 JIS-Traceable Precision Standard<\/h3>\n

Tooth geometry conforms to JIS grade N9 under JIS B1702-1: 1998, which is broadly equivalent to DIN 3962 quality class 9 \u2014 the standard commonly referenced when sourcing metric spur gears for industrial machinery in Europe, Australia, Canada, and Japan. Full-depth involute teeth at 20\u00b0 pressure angle ensure direct interchangeability with existing spur gear sets across all major metric module systems.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

\n

Plastic Spur Gears Material Composition \u2014 MC602ST Body over S45C Core<\/h2>\n

Understanding the material pairing in this plastic spur gear<\/strong> format is essential for correct application selection. The two materials in use serve distinct mechanical roles, and neither is a compromise \u2014 each is optimised for its region of the gear.<\/p>\n

\n
\n

MC602ST \u2014 Engineering Polymer Tooth Body<\/h3>\n

MC602ST is a cast nylon-based engineering resin developed specifically for gear tooth applications. It offers a balanced combination of stiffness, toughness, and low friction that positions it above standard nylon spur gears but below the hardness of delrin spur gears and acetal spur gears. Its tooth hardness in the 115 to 120 HRR range is consistent with long-cycle fatigue performance in moderate-load drives. The material is self-lubricating at the tooth surface, resistant to gear oils and common industrial solvents, and has sufficiently low thermal expansion to maintain involute profile geometry across a wide operating temperature range. When evaluating what plastic spur gears are made of in professional drive system design, MC602ST represents one of the more technically mature options available in the market.<\/p>\n<\/div>\n

\n

S45C \u2014 Precision Steel Core Insert<\/h3>\n

S45C is a Japanese Industrial Standard medium-carbon steel (roughly equivalent to AISI 1045 \/ DIN C45) widely used in shaft, hub, and structural gear components requiring good machinability and moderate tensile strength. In the context of this plastic spur gear<\/strong> with steel core design, the S45C insert provides the dimensional stability, keyway machinability, and bore tolerance precision that no engineering polymer can reliably sustain under repeated shaft-mounting and removal cycles. The core diameter of 34 mm in the NSU1-50 configuration is sized to maximise the metal-to-polymer interface area, distributing torque evenly into the surrounding MC602ST body without stress concentrations that could cause delamination or polymer splitting at the hub periphery. No heat treatment is applied to the assembled gear \u2014 the material properties are designed to be sufficient in the as-manufactured condition.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

\n

How the Steel-Core Plastic Spur Gear Operates<\/h2>\n

Like any external spur gear, this product transmits torque by the successive meshing of involute teeth on parallel shafts. The tooth contact line runs parallel to the shaft axis \u2014 the defining characteristic of the straight spur gear family \u2014 which eliminates axial thrust forces and simplifies bearing selection. At a 20\u00b0 pressure angle and standard full-depth tooth geometry, each tooth engagement produces a predictable, well-distributed load across the full face width of 10 mm in the NSU1-50 configuration.<\/p>\n

What distinguishes the steel-core variant’s operating behaviour from a comparable all-plastic spur gear is the load path through the gear body. In an all-polymer design, the torque path runs: shaft surface \u2192 polymer bore \u2192 polymer tooth root \u2192 tooth flank. Every link in that chain is polymer, and the bore interface is the weakest. In the steel-core design, the first two links change to: shaft surface \u2192 steel bore \u2192 steel core periphery \u2192 polymer tooth root \u2192 tooth flank. The torque is handed off to polymer only after it has already been distributed into the annular area of the MC602ST body, dramatically reducing stress concentration at the bore-to-tooth root transition.<\/p>\n

The involute profile used across this series conforms to the standard full-depth system, meaning the gear will mesh correctly with any mating spur gear tooth of the same module \u2014 whether another plastic spur gear, a metal spur gear, a pinion spur gear, or a gear rack \u2014 provided the module and pressure angle match. The gear ratio between any two mating gears is simply the ratio of their tooth counts, making spur gear set design and gear ratio calculation direct and unambiguous. This remains one of the most practical advantages of the straight spur gear format for engineers designing spur gears into new product architectures.<\/p>\n<\/div>\n

\"Plastic<\/p>\n

\n

Application Scenarios \u2014 Where Steel-Core Plastic Spur Gears Perform Best<\/h2>\n

The steel-core format is not intended as a universal replacement for standard polymer gears. Its particular combination of properties makes it the optimal solution in the scenarios listed below \u2014 markets and applications served globally, with particular demand from industrial buyers in Canada, the UK, Germany, Japan, and Southeast Asia.<\/p>\n

\n
\n

Precision Positioning Systems<\/h3>\n

CNC positioning tables, coordinate measurement machine axes, and automated optical alignment platforms require consistent backlash values over thousands of operating cycles. The steel-bore retention of this plastic spur gear<\/strong> prevents the gradual shaft-slip that would shift the zero position in an all-plastic gear drive, making it a reliable choice for metrology and semiconductor handling equipment.<\/p>\n<\/div>\n

\n

Industrial Conveyor & Indexing Drives<\/h3>\n

Conveyor indexing heads and step-motion transfer units subject their drive gears to repeated start-stop torque reversals. The S45C steel core handles the inertial shock loading at the shaft interface, while the MC602ST tooth body absorbs mesh impact elastically \u2014 a complementary split of function that extends overall gear life compared to either a pure steel spur gear or a pure plastic spur gear used alone.<\/p>\n<\/div>\n

\n

Pharmaceutical & Food-Grade Machinery<\/h3>\n

Equipment that must withstand regular chemical washdown cannot use external spur gear stages built from uncoated steel spur gears or brass spur gears without corrosion risk. The MC602ST tooth body resists cleaning agents, sanitisers, and dilute acids, while the steel core allows the gear to remain securely retained on its drive shaft throughout repeated wash cycles \u2014 a critical requirement for filling and capping lines in Europe and North America.<\/p>\n<\/div>\n

\n

Robotics \u2014 Higher-Torque Joints<\/h3>\n

Where all-plastic gears are marginal on torque capacity for a given robot joint, the steel-core plastic spur gear<\/strong> allows the designer to stay with a polymer tooth mesh \u2014 preserving the acoustic and weight advantages \u2014 while accepting higher peak torques through the steel bore interface. This is particularly relevant for collaborative robot arm joints and industrial pick-and-place systems running at duty cycles above 70%.<\/p>\n<\/div>\n

\n

Agricultural & Outdoor Power Equipment<\/h3>\n

Seed metering units, irrigation controllers, and implement drive governors in agricultural machinery are frequently mounted with interference-fit bores and must withstand vibration and grit contamination. The steel-core design resists the bore fretting and hub crack failures that terminate the service life of all-nylon spur gears in these environments, while the polymer tooth body avoids the rust and galling that disqualify uncoated metal spur gears from wet-field applications.<\/p>\n<\/div>\n

\n

Differential & Reduction Gear Stages<\/h3>\n

In multi-stage differential spur gear or inline reduction configurations, the intermediate gear often carries both radial and torque loads that push the bore stress limits of all-plastic gears. The steel core provides a reliable intermediate support point in these layouts, allowing the designer to maintain polymer meshing surfaces throughout the gear train \u2014 a key factor in drives where acoustic signature and lubricant-free operation are specified.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

\n

Choosing Between Gear Types \u2014 Spur Gear vs Helical Gear vs Steel-Core Plastic<\/h2>\n

The difference between spur gear and helical gear formats is well understood: the straight spur gear generates no axial thrust, is simpler to align, and costs less per unit; the helical gear runs more quietly at high speed and carries higher load ratings at a given pitch diameter. The steel-core plastic spur gear<\/strong> sits in a third category that is sometimes overlooked when designing spur gears for mixed-duty applications \u2014 one where the noise and corrosion advantages of polymer teeth are genuinely needed, but where shaft retention requirements rule out an all-plastic approach.<\/p>\n

For applications running below 800 RPM with moderate loads and clean shafts, an all-polymer plastic spur gear will typically suffice. For the same speed range but with larger shaft diameters, interference fits, or keyway requirements, the steel-core configuration is the technically correct selection. Above 800 RPM under sustained load, a steel spur gear or stainless steel spur gear should be evaluated against the polymer options, since tooth temperature rise becomes a significant design variable. The difference between spur gear and helical gear impact on system noise only becomes practically significant above roughly 1,200 RPM \u2014 below that threshold, the spur gear’s simplicity advantages generally outweigh the helical and spur gear noise trade-off.<\/p>\n

When evaluating plastic spur gears for sale, buyers should request confirmation of the material specification \u2014 particularly whether the product is an all-polymer design or carries a steel core \u2014 since the two products look similar in catalogue images but differ substantially in bore strength performance. Our plastic spur gear catalog clearly distinguishes these configurations for each product number.<\/p>\n<\/div>\n

\n

Related Products \u2014 One-Stop Drive System Supply<\/h2>\n

Beyond the steel-core plastic spur gear<\/strong>, our manufacturing scope covers the complementary components needed to complete a full drive train specification. Sourcing from a single supplier reduces procurement lead time, ensures dimensional compatibility across mating components, and simplifies incoming quality inspection procedures.<\/p>\n

\n
\n

\u049a\u043e\u0441 \u0441\u043f\u0438\u0440\u0430\u043b\u044c\u0434\u044b \u0442\u0456\u0441\u0442\u0456 \u0434\u043e\u04a3\u0493\u0430\u043b\u0430\u049b<\/a><\/h3>\n

For drive stages where higher load capacity or lower noise at elevated speed is required beyond what the straight spur gear can offer, our double helical gear series provides a direct step up. Opposing helix angles cancel axial thrust, maintaining the bearing simplicity of a spur gear set while delivering the load rating of a fully developed helical stage. System designers who pair steel-core plastic spur gears in low-speed stages with double helical gears in high-speed stages can optimise both noise and cost across a multi-stage transmission.<\/p>\n

\"double<\/div>\n<\/div>\n
\n

Gear Rack \u2014 Full Series<\/a><\/h3>\n

Any pinion spur gear from the EP series \u2014 including the steel-core plastic spur gear \u2014 can be paired with a matching gear rack to convert rotary motion into precision linear displacement. We supply gear racks in steel, stainless steel, and engineering polymer grades across the full metric module range, with tooth profiles that mesh directly with our spur gear series. Module M1 racks are available in standard lengths for immediate pairing with the NSU1-50 configuration, simplifying both engineering and procurement for linear actuator and gantry drive applications.<\/p>\n

\"gear<\/div>\n<\/div>\n<\/div>\n<\/div>\n
\n

Order & Trade Information<\/h2>\n
\n
\n

Minimum Order Quantity<\/h3>\n

Standard steel-core plastic spur gears carry a baseline MOQ. Mixed configurations \u2014 varying tooth counts, bore sizes, or module \u2014 can be combined into a single order totalling approximately USD 1,500. For customers evaluating new designs, 1\u20135 pcs samples are available at sample pricing. Orders of 1\u20132 pcs for urgent spare requirements can be assessed on a case-by-case basis, though unit pricing will be higher for very small quantities.<\/p>\n<\/div>\n

\n

Lead Time<\/h3>\n

Standard-stocked configurations: 3\u20137 working days. Standard production runs of catalogued plastic spur gears: 10\u201325 working days. Custom spur gears requiring non-standard bore, modified tooth profile, or keyway machining: 20\u201345 working days. Sample and small-batch test orders (1\u20135 pcs): 7\u201325 working days, with complex configurations assessed individually.<\/p>\n<\/div>\n

\n

Incoterms<\/h3>\n

Standard component shipments support EXW, FOB, CIF, and DAP terms. For urgent spare-part orders or small packages, EXW \/ FCA \/ DAP \/ courier service can be arranged. FCA, CFR, CPT, CIP, and DDP terms are negotiable for specific import markets or project-based procurement contracts. Contact our trade team with destination port and required Incoterm for a tailored quotation.<\/p>\n<\/div>\n

\n

Documentation<\/h3>\n

Material certificates for both MC602ST and S45C, dimensional inspection reports, and ISO 9001:2015 quality certificates are available on request for each production batch. Custom spur gear orders placing design-change requirements on the steel core geometry will include a drawing approval step prior to production release.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

\n

About Our Production Capability<\/h2>\n

With more than a decade of focused experience in precision mechanical power transmission, our facility designs and builds a broad range of industrial components from the ground up. Our manufacturing scope covers agricultural gearboxes, worm gear reducers, planetary drive systems, power take-off shafts, hydraulic cylinders, drive chains, gears of all types, and electric motors \u2014 all produced under a single ISO 9001:2015 certified quality management framework.<\/p>\n

The casting and fabrication side of our operation covers ductile iron, cast iron, cast steel, precision cast steel, and cast aluminium for gearbox housings, gear blanks, and custom assemblies. We manufacture gears, sprockets, worm gears, pulleys, worm shafts, and a full range of standard and non-standard mechanical drive parts \u2014 including every variant of plastic spur gear<\/strong> in the EP series.<\/p>\n

\u0428\u0435\u0431\u0435\u0440\u0445\u0430\u043d\u0430<\/h3>\n
\n
\"plastic
\n\"welding
\n\"CNC
\n\"spur<\/div>\n<\/div>\n<\/div>\n
\n

\u0416\u0438\u0456 \u049b\u043e\u0439\u044b\u043b\u0430\u0442\u044b\u043d \u0441\u04b1\u0440\u0430\u049b\u0442\u0430\u0440<\/h2>\n
\n
\nWhat makes a steel-core plastic spur gear the right choice for high-torque positioning equipment in Australian and UK industrial automation facilities?<\/summary>\n
\n

The steel-core design is specifically engineered for situations where an all-polymer bore would fail to maintain shaft retention under sustained or reversing torque. In industrial automation environments in Australia and the UK \u2014 where equipment is expected to run continuously with minimal intervention \u2014 the S45C steel core provides a metal-to-shaft interface that holds its bore tolerance and keyway geometry across the full service life. The MC602ST polymer tooth body simultaneously delivers the corrosion resistance and low-noise operation that makes a plastic spur gear preferable to a metal spur gear in cleanroom and food-adjacent processes. The combination is purpose-built for exactly this duty profile.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

\n
\nHow do I find a reliable nylon spur gears supplier who can provide steel-core variants with JIS-certified precision grades for machinery in Canada or Germany?<\/summary>\n
\n

When evaluating nylon spur gears suppliers for steel-core configurations, the critical questions are: does the manufacturer hold ISO 9001:2015 certification, can they supply material certificates for both the polymer body and the steel core insert, and does the gear’s precision grade conform to JIS B1702 or DIN 3962 standards? Our EP series meets all three requirements. For buyers in Canada and Germany, we export under standard EXW, FOB, and CIF terms with full documentation packages. Sample orders of 1\u20135 pcs are available to allow fit, form, and function verification before any volume commitment is made.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

\n
\nAre plastic gears strong enough to replace metal gears when a steel-core insert is used in food processing or pharmaceutical packaging drive systems?<\/summary>\n
\n

For food processing and pharmaceutical packaging applications running at moderate speeds and within the polymer’s rated torque envelope, steel-core plastic spur gears are a well-established substitute for metal gears. The MC602ST tooth body resists sanitising chemicals and does not corrode or produce metallic debris \u2014 both critical requirements in food-contact equipment. The S45C steel core handles the bore loads that would otherwise cause an all-polymer gear to loosen or crack on its shaft. The answer is that this configuration is genuinely strong enough for a wide range of these applications, provided the system designer validates the operating torque against the gear’s rated capacity for the given module and face width.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

\n
\nWhich plastic spur gear configuration works best when designing spur gears for robot joint drives that need consistent backlash control over tens of thousands of cycles?<\/summary>\n
\n

For robotic joint drives requiring consistent backlash over long duty cycles, the steel-core plastic spur gear outperforms an all-polymer equivalent in every respect relevant to this application. The steel bore prevents the gradual shaft-slip that would shift backlash values in an all-nylon gear, while the MC602ST tooth body’s 115 to 120 HRR hardness provides a stable tooth flank that does not wear into excessive play rapidly under cyclical load. The NSU1-50’s 0 to 0.34 mm backlash specification, maintained by JIS grade N9 precision manufacture, makes it a reliable foundation for robot joint stages where position repeatability is essential. For very low backlash requirements, contact our engineering team to discuss zero-backlash lash-adjustable spur gear set configurations.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

\n
\nWhere can I source custom spur gears with non-standard bore sizes and keyways machined into the steel core for agricultural equipment used across Southeast Asian and Canadian markets?<\/summary>\n
\n

Our custom spur gears programme handles exactly this type of requirement. For agricultural machinery buyers in Southeast Asia and Canada who need non-standard bore diameters, keyway profiles, or set-screw flat machining on the steel core, we accept customer drawings or dimensional specifications and produce the modified core insert prior to polymer overmoulding. Lead times for these custom configurations run 20\u201345 working days depending on bore complexity and batch size. Drawing review and dimensional approval is carried out before production release to confirm that the custom bore geometry is achievable within the core’s structural constraints. Contact our engineering team with your module, tooth count, and bore requirements to begin the quotation process.<\/p>\n<\/div>\n<\/details>\n<\/div>\n<\/div>\n<\/div>\n

\u0420\u0435\u0434\u0430\u043a\u0442\u043e\u0440: PXY<\/p>","protected":false},"excerpt":{"rendered":"

The EP-Plastic Spur Gears with Steel Cores series combines the quiet operation of plastic with the structural integrity of metal, designed for high-load precision applications. Manufactured from MC602ST nylon with an S45C steel core, these gears achieve a tooth hardness of 115\u2013120 HRR without additional heat treatment. They feature a standard 20\u00b0 pressure angle and full-depth teeth, meeting JIS Grade N9 (JIS B1702-1: 1998) and JIS Grade 5 (JIS B1702: 1976) precision standards. A representative model, the NSU1-50 (Module 1, 50 Teeth), features a 50mm pitch diameter, 52mm outside diameter, and 10mm face width. With a 10mm bore and 34mm metal core diameter, it offers controlled backlash (0\u20130.34mm) for reliable synchronization. This hybrid construction ensures durability and dimensional stability in demanding industrial drives where pure plastic gears might fail.<\/p>","protected":false},"featured_media":1996,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[70,66],"product_tag":[],"class_list":["post-1995","product","type-product","status-publish","has-post-thumbnail","product_cat-plastic-gears","product_cat-spur-gear","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/superiortransmissioninc.com\/kk\/wp-json\/wp\/v2\/product\/1995","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/superiortransmissioninc.com\/kk\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/superiortransmissioninc.com\/kk\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/kk\/wp-json\/wp\/v2\/media\/1996"}],"wp:attachment":[{"href":"https:\/\/superiortransmissioninc.com\/kk\/wp-json\/wp\/v2\/media?parent=1995"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/kk\/wp-json\/wp\/v2\/product_brand?post=1995"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/kk\/wp-json\/wp\/v2\/product_cat?post=1995"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/superiortransmissioninc.com\/kk\/wp-json\/wp\/v2\/product_tag?post=1995"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}