{"id":1849,"date":"2026-05-26T08:56:52","date_gmt":"2026-05-26T08:56:52","guid":{"rendered":"https:\/\/chinawormgearbox.xyz\/product\/wpa-single-speed-worm-gear-reducer\/"},"modified":"2026-05-26T08:56:52","modified_gmt":"2026-05-26T08:56:52","slug":"wpa-single-speed-worm-gear-reducer","status":"publish","type":"product","link":"https:\/\/chinawormgearbox.xyz\/it\/product\/wpa-single-speed-worm-gear-reducer\/","title":{"rendered":"WPA Single Speed Worm Gear Reducer"},"content":{"rendered":"
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WPA Single Speed Worm Gear Reducer \u2014 Dependable High-Torque Foot-Mounted Drive for Industrial Applications<\/h1>\n

In production environments where reliable speed reduction and maximum torque delivery must coexist, the WPA worm gear reducer<\/strong> stands as the benchmark general-purpose solution. Its precision worm-and-wheel set converts high-speed motor output into the steady, high-torque rotation demanded by belt conveyors, industrial mixers, grain augers, and process-drive systems \u2014 all housed within a rugged foot-mounted cast iron worm gearbox<\/em> designed to withstand shock loading, dust ingress, and demanding 24\/7 operation.<\/p>\n

Available in 13 frame sizes<\/strong> (40\u2013250 mm centre distance) with nine standard reduction ratios<\/strong> (1\/5 to 1\/60), the WPA single-speed worm gearbox covers output torques from 17 Nm up to 2,371 Nm. Five configurable shaft-direction positions (A\u2013E) mean the unit adapts to your machine layout \u2014 not the reverse. Learn about Ever-power<\/a> or request a free selection guide<\/a>.<\/p>\n<\/section>\n

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Technical Specifications<\/h2>\n

Full dimensional data for all WPA sizes. Input speed reference: 1500 r\/min<\/strong>. All dimensions in mm.<\/p>\n

\n\"WPA\n<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Size<\/th>\nRatio<\/th>\nA<\/th>\nAB<\/th>\nB<\/th>\nBB<\/th>\nCC<\/th>\nH<\/th>\nHL<\/th>\nM<\/th>\nN<\/th>\nE<\/th>\nF<\/th>\nG<\/th>\nZ<\/th>\nHS<\/th>\nU<\/th>\nT\u00d7V<\/th>\nLS<\/th>\nS<\/th>\nW\u00d7Y<\/th>\nWt(kg)<\/th>\nOil(L)<\/th>\n<\/tr>\n<\/thead>\n
40<\/td>\n1\/5\u20131\/60<\/td>\n143<\/td>\n87<\/td>\n114<\/td>\n74<\/td>\n40<\/td>\n138<\/td>\n40<\/td>\n90<\/td>\n100<\/td>\n70<\/td>\n80<\/td>\n13<\/td>\n10<\/td>\n25<\/td>\n12<\/td>\n4\u00d72.5<\/td>\n28<\/td>\n14<\/td>\n5\u00d73<\/td>\n4<\/td>\n0.13<\/td>\n<\/tr>\n
50<\/td>\n<\/td>\n175<\/td>\n108<\/td>\n150<\/td>\n97<\/td>\n50<\/td>\n176<\/td>\n50<\/td>\n120<\/td>\n140<\/td>\n95<\/td>\n110<\/td>\n15<\/td>\n12<\/td>\n30<\/td>\n12<\/td>\n4\u00d72.5<\/td>\n40<\/td>\n17<\/td>\n5\u00d73<\/td>\n7<\/td>\n0.17<\/td>\n<\/tr>\n
60<\/td>\n<\/td>\n198<\/td>\n120<\/td>\n168<\/td>\n112<\/td>\n60<\/td>\n204<\/td>\n60<\/td>\n130<\/td>\n150<\/td>\n105<\/td>\n120<\/td>\n20<\/td>\n12<\/td>\n40<\/td>\n15<\/td>\n5\u00d73<\/td>\n50<\/td>\n22<\/td>\n7\u00d74<\/td>\n10<\/td>\n0.22<\/td>\n<\/tr>\n
70<\/td>\n<\/td>\n231<\/td>\n140<\/td>\n194<\/td>\n131<\/td>\n70<\/td>\n236<\/td>\n70<\/td>\n150<\/td>\n190<\/td>\n115<\/td>\n150<\/td>\n20<\/td>\n15<\/td>\n40<\/td>\n18<\/td>\n5\u00d73<\/td>\n60<\/td>\n28<\/td>\n7\u00d74<\/td>\n15<\/td>\n0.60<\/td>\n<\/tr>\n
80<\/td>\n<\/td>\n261<\/td>\n160<\/td>\n214<\/td>\n142<\/td>\n80<\/td>\n268<\/td>\n80<\/td>\n170<\/td>\n220<\/td>\n135<\/td>\n180<\/td>\n20<\/td>\n15<\/td>\n50<\/td>\n22<\/td>\n7\u00d74<\/td>\n65<\/td>\n32<\/td>\n10\u00d74.5<\/td>\n20<\/td>\n0.85<\/td>\n<\/tr>\n
100<\/td>\n<\/td>\n322<\/td>\n190<\/td>\n254<\/td>\n169<\/td>\n100<\/td>\n336<\/td>\n100<\/td>\n193<\/td>\n270<\/td>\n155<\/td>\n220<\/td>\n25<\/td>\n15<\/td>\n50<\/td>\n25<\/td>\n7\u00d74<\/td>\n75<\/td>\n38<\/td>\n10\u00d74.5<\/td>\n35<\/td>\n1.50<\/td>\n<\/tr>\n
120<\/td>\n<\/td>\n371<\/td>\n219<\/td>\n282<\/td>\n190<\/td>\n120<\/td>\n430<\/td>\n120<\/td>\n233<\/td>\n320<\/td>\n180<\/td>\n260<\/td>\n30<\/td>\n18<\/td>\n65<\/td>\n30<\/td>\n7\u00d74<\/td>\n85<\/td>\n45<\/td>\n12\u00d74.5<\/td>\n60<\/td>\n3.20<\/td>\n<\/tr>\n
135<\/td>\n<\/td>\n422<\/td>\n249<\/td>\n317<\/td>\n210<\/td>\n135<\/td>\n480<\/td>\n135<\/td>\n253<\/td>\n350<\/td>\n200<\/td>\n290<\/td>\n30<\/td>\n18<\/td>\n75<\/td>\n35<\/td>\n10\u00d74.5<\/td>\n95<\/td>\n55<\/td>\n16\u00d76<\/td>\n80<\/td>\n3.60<\/td>\n<\/tr>\n
147<\/td>\n<\/td>\n432<\/td>\n256<\/td>\n320<\/td>\n210<\/td>\n147<\/td>\n460<\/td>\n123<\/td>\n250<\/td>\n350<\/td>\n200<\/td>\n280<\/td>\n32<\/td>\n18<\/td>\n75<\/td>\n35<\/td>\n10\u00d74.5<\/td>\n95<\/td>\n55<\/td>\n16\u00d76<\/td>\n98<\/td>\n3.70<\/td>\n<\/tr>\n
155<\/td>\n<\/td>\n497<\/td>\n295<\/td>\n382<\/td>\n252<\/td>\n155<\/td>\n531<\/td>\n135<\/td>\n275<\/td>\n390<\/td>\n220<\/td>\n320<\/td>\n35<\/td>\n21<\/td>\n85<\/td>\n40<\/td>\n12\u00d75<\/td>\n110<\/td>\n60<\/td>\n18\u00d77<\/td>\n110<\/td>\n3.80<\/td>\n<\/tr>\n
175<\/td>\n<\/td>\n534<\/td>\n314<\/td>\n388<\/td>\n255<\/td>\n175<\/td>\n600<\/td>\n160<\/td>\n310<\/td>\n430<\/td>\n250<\/td>\n350<\/td>\n40<\/td>\n21<\/td>\n85<\/td>\n45<\/td>\n14\u00d75.5<\/td>\n110<\/td>\n65<\/td>\n18\u00d77<\/td>\n150<\/td>\n4.60<\/td>\n<\/tr>\n
200<\/td>\n<\/td>\n580<\/td>\n342<\/td>\n456<\/td>\n319<\/td>\n200<\/td>\n666<\/td>\n175<\/td>\n360<\/td>\n480<\/td>\n290<\/td>\n390<\/td>\n40<\/td>\n24<\/td>\n95<\/td>\n50<\/td>\n14\u00d75.5<\/td>\n125<\/td>\n70<\/td>\n20\u00d77.5<\/td>\n215<\/td>\n6.50<\/td>\n<\/tr>\n
250<\/td>\n<\/td>\n703<\/td>\n420<\/td>\n552<\/td>\n385<\/td>\n250<\/td>\n800<\/td>\n200<\/td>\n460<\/td>\n560<\/td>\n380<\/td>\n480<\/td>\n45<\/td>\n28<\/td>\n110<\/td>\n60<\/td>\n18\u00d77<\/td>\n155<\/td>\n90<\/td>\n25\u00d79<\/td>\n360<\/td>\n9.00<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* HS=input shaft bore; U=input shaft length; T\u00d7V=keyway; LS=output shaft length; S=output shaft diameter; W\u00d7Y=output keyway.<\/p>\n<\/section>\n

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Product Structure<\/h2>\n
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\n\"WPA\n<\/div>\n
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The WPA features a foot-mounted housing in which the worm shaft (input) and worm wheel shaft (output) are arranged at 90\u00b0. The sealed cast iron body retains a splash-lubrication oil bath with a breather plug on top and an oil-sight glass for maintenance monitoring.<\/p>\n\n\n\n\n\n\n\n\n
Housing<\/td>\nFC25 grey cast iron, CNC precision-machined mating faces<\/td>\n<\/tr>\n
Worm Shaft<\/td>\n20CrMnTi carburised & ground, \u226558 HRC surface hardness<\/td>\n<\/tr>\n
Worm Wheel<\/td>\nZCuSn10Pb1 tin-bronze rim, ductile iron hub<\/td>\n<\/tr>\n
Bearings<\/td>\nC3 deep-groove ball bearings; tapered roller on output (large sizes)<\/td>\n<\/tr>\n
Seals<\/td>\nDouble-lip NBR oil seals on all shaft exits<\/td>\n<\/tr>\n
Lubrication<\/td>\nSplash oil bath; N220\u2013N320 mineral or synthetic gear oil<\/td>\n<\/tr>\n
Shaft Positions<\/td>\n5 configurable orientations: A, B, C, D, E<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<\/div>\n<\/section>\n
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\u2705 Key Features & Benefits<\/h2>\n
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\ufe0f Rugged Cast Iron Housing<\/h3>\n

The FC25 grey cast iron enclosure delivers outstanding impact resistance and vibration damping \u2014 essential for mining conveyors, aggregate plants, and any duty subject to shock loading. Ribbed side panels provide natural convection cooling, maintaining safe oil temperatures during 24\/7 continuous operation. Keywords: heavy-duty cast iron gearbox, rugged worm drive housing.<\/em><\/p>\n<\/div>\n

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\u2699\ufe0f Precision Worm & Wheel Set<\/h3>\n

Ground-tooth worm shaft mates with ZCuSn10Pb1 bronze wheel to ISO 1328 Grade 7 tolerances, delivering smooth, low-noise power transmission (\u226472 dB(A) at rated load). Transmission efficiency of 60\u201390% depending on ratio, with self-locking available at ratios 1\/30 and above. Keywords: precision worm gear reducer, low-noise worm gearbox.<\/em><\/p>\n<\/div>\n

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Five-Way Shaft Flexibility<\/h3>\n

Standard positions A through E accommodate virtually any drive-train layout, simplifying integration into new designs and retrofits without structural modification \u2014 reducing coupling components and installation time significantly.<\/p>\n<\/div>\n

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Wide Size & Ratio Coverage<\/h3>\n

13 frame sizes (40\u2013250 mm) and 9 ratios (1\/5\u20131\/60) deliver output torques from 17 Nm to 2,371 Nm at 1500 r\/min input, covering the full spectrum of light-to-heavy industrial speed-reduction needs in one standardised family.<\/p>\n<\/div>\n

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Sealed & Low-Maintenance<\/h3>\n

Double-lip NBR seals prevent leakage and contamination. Splash lubrication requires no external pump. After the 100-hour initial oil change, maintenance intervals extend to 2,500 operating hours \u2014 ideal for remote or difficult-to-access installations.<\/p>\n<\/div>\n

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\u26a1 High Cantilever Load Capacity<\/h3>\n

Generously spaced output shaft bearings provide high radial and axial load capacity, allowing direct sprocket, pulley, or coupling mounting without an external bearing plummer block \u2014 reducing cost and footprint.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Industry Applications<\/h2>\n

The WPA single-speed worm gear reducer excels wherever foot-mounted, compact, high-torque speed reduction is required:<\/p>\n

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\u2699\ufe0f<\/div>\n

Belt Conveyor Systems<\/strong>Mining, quarrying and bulk material handling lines requiring continuous, reliable torque for uninterrupted production.<\/span><\/div>\n

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Industrial Mixers & Agitators<\/strong>Chemical, food and paint mixing vessels requiring steady low-speed, high-torque drive for extended batch cycles.<\/span><\/div>\n

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Agricultural Machinery<\/strong>Grain augers, seed spreaders, irrigation pump drives and harvester auxiliary systems.<\/span><\/div>\n

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Water & Wastewater Treatment<\/strong>Sludge scrapers, clarifier drives and rotary screens leveraging the WPA’s self-locking capability at high reduction ratios.<\/span><\/div>\n

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\ufe0f<\/div>\n

Construction Equipment<\/strong>Concrete mixers, block-making lines and building material conveyors benefiting from the rugged housing.<\/span><\/div>\n

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Textile & Printing Machinery<\/strong>Fabric winding, roller drives and printing press feed mechanisms where smooth speed reduction prevents registration errors.<\/span><\/div>\n<\/div>\n<\/section>\n

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Quality Control & Certification<\/h2>\n
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ISO 9001:2015 & CE<\/h3>\n

Every WPA reducer is manufactured under ISO 9001:2015<\/strong> quality management. CE Declaration of Conformity issued per shipment \u2014 compliant with EU Machinery Directive 2006\/42\/EC and Australian market entry requirements.<\/p>\n<\/div>\n

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Pre-Shipment Testing<\/h3>\n

Three-stage inspection: (1) Noise & vibration test<\/strong> at rated load (\u226472 dB(A)); (2) Oil-seal leak test<\/strong> \u2014 30-minute pressurised run; (3) Torque output verification<\/strong> against published specification data.<\/p>\n<\/div>\n

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Material Traceability<\/h3>\n

Housing: FC25 cast iron (\u2265250 MPa tensile). Worm: 20CrMnTi (\u226558 HRC surface). Wheel rim: ZCuSn10Pb1 tin-bronze. Full material mill certificates available on request.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Why Choose Ever-power<\/h2>\n
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\"Ever-power<\/div>\n
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