{"id":1920,"date":"2026-05-27T06:45:20","date_gmt":"2026-05-27T06:45:20","guid":{"rendered":"https:\/\/chinawormgearbox.xyz\/product\/wpex-dual-output-shaft-double-speed-worm-gear-reducer\/"},"modified":"2026-05-27T06:45:20","modified_gmt":"2026-05-27T06:45:20","slug":"wpex-dual-output-shaft-double-speed-worm-gear-reducer","status":"publish","type":"product","link":"https:\/\/chinawormgearbox.xyz\/ko\/product\/wpex-dual-output-shaft-double-speed-worm-gear-reducer\/","title":{"rendered":"WPEX Dual Output Shaft Double Speed Worm Gear Reducer"},"content":{"rendered":"
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WPEX Dual Output Shaft Double Speed Worm Gear Reducer \u2014 Synchronised Ultra-High Ratio Bilateral Drive from a Single Unit<\/h1>\n

When a paper machine requires both left and right rollers driven at precisely 1\/600 of motor speed, or a wide mining conveyor needs both drive drums synchronised at 1\/400 ratio from a single motor, no standard single-output gearbox can meet the requirement. The WPEX dual output shaft double speed worm gear reducer<\/strong> is the engineered solution \u2014 combining two-stage reduction (ratios 1\/200 to 1\/900) with dual synchronised output shafts, delivering mechanically perfect bilateral synchronisation at the extreme low speeds that only a two-stage drive can achieve.<\/p>\n

The E, E\u2081, and E\u2082 output shaft dimensions in the specification table define the two equal-length output shaft extensions on each side of the worm wheel bore. Because both shafts are keyed to the same second-stage worm wheel, speed equality is a mechanical certainty \u2014 no synchronisation electronics, no differential drives, no chain backlash. Available in 9 size groups<\/strong>, ratios 1\/200\u20131\/900, shaft directions A\u2013E. About Ever-power<\/a> | Request a Quotation<\/a><\/p>\n<\/section>\n

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Technical Specifications<\/h2>\n

WPEX shares the WPEO housing body. E\u2081 and E\u2082 = equal output shaft extensions each side of the second-stage worm wheel. Reference input speed 1500 r\/min<\/strong>. All dimensions in mm.<\/p>\n

\"WPEX<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Size<\/th>\nRatio<\/th>\nA<\/th>\nAA<\/th>\nAB<\/th>\nBA<\/th>\nBB<\/th>\nBC<\/th>\nBE<\/th>\nHB<\/th>\nCA<\/th>\nM<\/th>\nN<\/th>\nE<\/th>\nE\u2081<\/th>\nE\u2082<\/th>\nG<\/th>\nZ<\/th>\nHS<\/th>\nU<\/th>\nT\u00d7V<\/th>\nLS<\/th>\nS<\/th>\nW\u00d7Y<\/th>\nWt(kg)<\/th>\n<\/tr>\n<\/thead>\n
40-70<\/td>\n1\/200\u20131\/900<\/td>\n286<\/td>\n195<\/td>\n153<\/td>\n40<\/td>\n131<\/td>\n65<\/td>\n87<\/td>\n50<\/td>\n157<\/td>\n156<\/td>\n295<\/td>\n120<\/td>\n120<\/td>\n135<\/td>\n20<\/td>\n15<\/td>\n25<\/td>\n12<\/td>\n4\u00d72.5<\/td>\n60<\/td>\n28<\/td>\n8\u00d74<\/td>\n19<\/td>\n<\/tr>\n
50-80<\/td>\n<\/td>\n297<\/td>\n197<\/td>\n144<\/td>\n50<\/td>\n142<\/td>\n70<\/td>\n108<\/td>\n65<\/td>\n188<\/td>\n175<\/td>\n320<\/td>\n140<\/td>\n130<\/td>\n150<\/td>\n20<\/td>\n15<\/td>\n30<\/td>\n12<\/td>\n4\u00d72.5<\/td>\n65<\/td>\n32<\/td>\n10\u00d74.5<\/td>\n27<\/td>\n<\/tr>\n
60-100<\/td>\n<\/td>\n363<\/td>\n231<\/td>\n175<\/td>\n60<\/td>\n169<\/td>\n90<\/td>\n120<\/td>\n75<\/td>\n222<\/td>\n224<\/td>\n410<\/td>\n190<\/td>\n165<\/td>\n215<\/td>\n22<\/td>\n15<\/td>\n40<\/td>\n15<\/td>\n5\u00d73<\/td>\n75<\/td>\n38<\/td>\n10\u00d74.5<\/td>\n44<\/td>\n<\/tr>\n
70-120<\/td>\n<\/td>\n408<\/td>\n256<\/td>\n193<\/td>\n70<\/td>\n190<\/td>\n100<\/td>\n140<\/td>\n90<\/td>\n260<\/td>\n266<\/td>\n450<\/td>\n220<\/td>\n185<\/td>\n215<\/td>\n30<\/td>\n18<\/td>\n40<\/td>\n18<\/td>\n5\u00d73<\/td>\n85<\/td>\n45<\/td>\n12\u00d74.5<\/td>\n63<\/td>\n<\/tr>\n
80-135<\/td>\n<\/td>\n471<\/td>\n298<\/td>\n226<\/td>\n80<\/td>\n210<\/td>\n110<\/td>\n160<\/td>\n105<\/td>\n295<\/td>\n306<\/td>\n495<\/td>\n260<\/td>\n210<\/td>\n235<\/td>\n30<\/td>\n18<\/td>\n50<\/td>\n22<\/td>\n7\u00d74<\/td>\n95<\/td>\n55<\/td>\n16\u00d76<\/td>\n96<\/td>\n<\/tr>\n
100-155<\/td>\n<\/td>\n555<\/td>\n354<\/td>\n269<\/td>\n100<\/td>\n252<\/td>\n140<\/td>\n190<\/td>\n130<\/td>\n345<\/td>\n350<\/td>\n590<\/td>\n290<\/td>\n245<\/td>\n295<\/td>\n35<\/td>\n21<\/td>\n50<\/td>\n25<\/td>\n7\u00d74<\/td>\n110<\/td>\n60<\/td>\n18\u00d77<\/td>\n149<\/td>\n<\/tr>\n
120-175<\/td>\n<\/td>\n598<\/td>\n379<\/td>\n287<\/td>\n120<\/td>\n255<\/td>\n150<\/td>\n219<\/td>\n155<\/td>\n394<\/td>\n640<\/td>\n320<\/td>\n267<\/td>\n323<\/td>\n40<\/td>\n21<\/td>\n65<\/td>\n30<\/td>\n7\u00d74<\/td>\n110<\/td>\n65<\/td>\n18\u00d77<\/td>\n191<\/td>\n<\/tr>\n
135-200<\/td>\n<\/td>\n662<\/td>\n425<\/td>\n318<\/td>\n135<\/td>\n319<\/td>\n175<\/td>\n256<\/td>\n185<\/td>\n456<\/td>\n440<\/td>\n710<\/td>\n370<\/td>\n290<\/td>\n360<\/td>\n40<\/td>\n24<\/td>\n75<\/td>\n35<\/td>\n10\u00d74.5<\/td>\n125<\/td>\n70<\/td>\n20\u00d77.5<\/td>\n278<\/td>\n<\/tr>\n
155-250<\/td>\n<\/td>\n795<\/td>\n510<\/td>\n380<\/td>\n155<\/td>\n385<\/td>\n200<\/td>\n295<\/td>\n203<\/td>\n545<\/td>\n510<\/td>\n860<\/td>\n440<\/td>\n350<\/td>\n440<\/td>\n45<\/td>\n28<\/td>\n85<\/td>\n40<\/td>\n12\u00d75<\/td>\n155<\/td>\n90<\/td>\n25\u00d79<\/td>\n442<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* E = total second-stage worm wheel shaft length; E\u2081 and E\u2082 = individual output shaft extension lengths (equal by default). CA = overall output shaft span between outer bearing faces. Shaft directions A\u2013E (5 positions). Shared specification drawing with WPEO.<\/p>\n<\/section>\n

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Product Structure \u2014 Two-Stage Cascade with Dual Output Shaft<\/h2>\n
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\"WPEX<\/div>\n
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The WPEX extends the two-stage WPEO housing by boring the second-stage worm wheel shaft through both sides of the housing, creating equal-length output shaft extensions at both ends. The wider housing body provides two additional bearing bores flanking the worm wheel, supporting the extended shaft under asymmetric loading while maintaining the full torque capacity of the selected size and ratio combination.<\/p>\n\n\n\n\n\n\n\n
Drive Stages<\/td>\nTwo worm-and-wheel pairs in series; ratio 1\/200\u20131\/900<\/td>\n<\/tr>\n
Output Shafts<\/td>\nTwo equal-length shafts, both keyed to second-stage worm wheel \u2014 zero speed differential<\/td>\n<\/tr>\n
Synchronisation<\/td>\nMechanical lock \u2014 mathematically exact speed equality, no electronic control required<\/td>\n<\/tr>\n
Housing<\/td>\nFC25 cast iron; wider body than WPEO for dual output bearing bores<\/td>\n<\/tr>\n
Bearings<\/td>\nSix bearings total: two on each worm shaft (both stages) + two on output shaft ends<\/td>\n<\/tr>\n
Shaft Directions<\/td>\n5 positions (A\u2013E); dual output protrudes symmetrically from both sides<\/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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Ultra-High Ratio + Perfect Bilateral Synchronisation<\/h3>\n

The WPEX uniquely delivers ratios of 1\/200\u20131\/900 AND mechanically exact dual-output synchronisation in a single unit. No other product type simultaneously achieves such extreme speed reduction while guaranteeing zero bilateral speed differential. Ideal for paper machines, wide mining conveyors, and precision industrial drives requiring both extreme ratio and symmetrical twin-point drive. Keywords: dual output double speed worm gearbox, synchronised two-stage worm reducer.<\/em><\/p>\n<\/div>\n

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\u2699\ufe0f<\/div>\n

Eliminates Synchronisation System Complexity<\/h3>\n

Replacing a two-stage single-output gearbox plus synchronisation chain (or electronic servo synchronisation) with a single WPEX eliminates multiple components, alignment requirements, and maintenance points. For paper machines and wide conveyors operating at very low speeds, chain synchronisation at these speeds introduces backlash; the WPEX eliminates it mechanically.<\/p>\n<\/div>\n

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Two-Stage Precision for Extreme-Low-Speed Applications<\/h3>\n

Both worm pairs are ground to ISO 1328 Grade 7 tolerances. The resulting output is smooth, consistent, and free from the cyclical velocity variations that characterise poorly meshed gears \u2014 important for paper web stability, film processing uniformity, and bulk material conveying where speed variation causes product quality issues.<\/p>\n<\/div>\n

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Single-Unit BOM Efficiency<\/h3>\n

One WPEX replaces: (1) a two-stage gearbox, (2) a synchronisation drive system (chain, belt, or servo), (3) all associated mounting hardware. For OEM machine builders, this single-product BOM simplification reduces cost, procurement complexity, and assembly time across a production programme.<\/p>\n<\/div>\n

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Full 9-Size Range for Heavy Bilateral Drives<\/h3>\n

From size 40-70 (output torque ~250 Nm per shaft end at 1\/200) to size 155-250 (~6,050 Nm combined at 1\/900), the WPEX covers the full range of bilateral heavy industrial drive requirements within the WPE two-stage product family.<\/p>\n<\/div>\n

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Strong Self-Locking at High Combined Ratios<\/h3>\n

At combined ratios of 1\/400 and above, the WPEX provides self-locking on both output shaft ends simultaneously \u2014 preventing bilateral back-driving of connected loads under gravity or residual drive forces when the motor is de-energised.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Industry Applications<\/h2>\n

The WPEX is specified wherever bilateral synchronised drive at ultra-high reduction ratios is required in a single unit:<\/p>\n

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Paper Machine Drives<\/strong>Wide paper machine press section roll drives and coating section roller drives requiring both left and right ends driven at precisely equal ultra-low speeds (1\/400\u20131\/900 ratio) for even web tension.<\/span><\/div>\n

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\u26cf\ufe0f<\/div>\n

Wide Mining Conveyors<\/strong>Wide belt conveyor head drum bilateral drives in open-cast mines and ore processing plants where both drum ends must be driven synchronously at low speeds under high torque.<\/span><\/div>\n

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Film & Foil Processing<\/strong>Biaxial stretching machine drive rolls, metal foil rolling mill work roll drives, and plastic film extrusion haul-off drives requiring precise bilateral synchronisation at very low output speeds.<\/span><\/div>\n

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Textile Finishing Lines<\/strong>Wide fabric tentering machine drive systems and heavy calender roll bilateral drives in textile finishing where bilateral speed matching across the full web width prevents fabric distortion.<\/span><\/div>\n

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Heavy Packaging Lines<\/strong>Wide-format industrial strapping machine drives, heavy wrapping line bilateral conveyors, and pallet wrapping turntable drives requiring synchronised bilateral low-speed drive.<\/span><\/div>\n

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\u2699\ufe0f<\/div>\n

Test & Calibration Equipment<\/strong>Industrial dynamometer loading drives, material testing machine bilateral loading systems, and precision rotary table drives where mechanically exact bilateral synchronisation at very low speeds is a fundamental measurement requirement.<\/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

Full ISO 9001:2015 QMS. CE Declaration of Conformity per shipment. WPEX output shaft run-out is verified at both shaft ends (\u22640.05 mm TIR each) in addition to standard two-stage gear mesh checks, ensuring both output ends contribute equal and symmetrical torque.<\/p>\n<\/div>\n

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Bilateral Synchronisation Test<\/h3>\n

Each WPEX undergoes a bilateral symmetry verification<\/strong>: output shaft run-out measured at both ends; keyway position symmetry checked; torque balance verified during the 45-minute loaded run test. Both shaft ends must produce equal speed and torque within instrument measurement accuracy.<\/p>\n<\/div>\n

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\ufe0f Material Standards<\/h3>\n

Housing: FC25 cast iron (\u2265250 MPa). Both worm shafts: 20CrMnTi (\u226558 HRC). Both output shaft extensions machined from the same billet and heat-treated together for matched mechanical properties. Full material certs on request for paper and film industry quality documentation.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Why Choose Ever-power for WPEX Double Speed Gearboxes<\/h2>\n
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\"Ever-power<\/div>\n
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We supply WPEX dual-output two-stage worm gearboxes to paper machine OEMs, wide conveyor builders, and film processing equipment manufacturers in Japan, the Netherlands, Brazil, Australia, and over 60 countries worldwide. Our bilateral symmetry test \u2014 verifying both output shaft ends, not just the overall unit \u2014 is the quality assurance standard that paper and film industry customers rely on for consistent bilateral synchronisation across an entire machine.<\/p>\n