WDX & WDO Series Worm Gear Reducer_0100_05

DX & DO Series (WPDX and WPDO)

The WPDX/WPDO series integrates an IEC B5 flange input with a dual-output worm gearbox within a single housing—the WPDO features mechanically precise, coaxial dual outputs, while the WPDX incorporates a 90° secondary output for offset-shaft layouts. Available in sizes 50–155, covering speed ratios from 10:1 to 60:1.

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Description

The WP worm gearbox family reaches its maximum functional density in the DX & DO Series (WPDX and WPDO) — the only configuration in the range that simultaneously integrates all three drive interface advantages: an IEC B5 motor-mounting flange at the input (no coupling, no alignment), and dual output shafts on the driven side. Where the WPDA offers direct motor mounting with single output, and the WPO/WPX offer dual output with shaft-coupled motor input, the WPDX and WPDO close the gap by delivering all three features in a single sealed right-angle housing. The WPDO provides two co-axial output shafts extending from opposite housing faces — mechanically guaranteeing identical speed on both simultaneously from a single flanged motor. The WPDX provides one co-axial output and a second output at 90° for offset-axis machine geometries. Covering sizes 50 through 155 with input powers from 0.18 kW to 5.5 kW and gear ratios from 10:1 to 60:1, the WPDX and WPDO serve Australian manufacturers in Sydney, Melbourne, Brisbane, Adelaide, and Perth who need the most compact possible motorised twin-drive arrangement. Manufactured to ISO 9001:2015, designed per AGMA 6034, supplied by Ever-Power Worm Gear Reducer Co., Ltd. (Australia), 27 Harley Crescent, Condell Park NSW 2200.

WPDO dual co-axial output worm reducer with IEC motor flange — Ever-Power AustraliaWPDX 90 degree dual output worm reducer with IEC motor flange — Ever-Power Australia

Key Specifications & Parameters — DX & DO Series (WPDX / WPDO)

WPDX — Motor Flange + 90° Dual Output

IEC B5 motor flange input. One co-axial output plus a second output at 90° via internal bevel stage. Ideal for L-shaped machine drive layouts requiring a flanged motor and offset-axis second output.

WPDO — Motor Flange + Co-Axial Dual Output

IEC B5 motor flange input. Twin co-axial output shafts on opposite housing faces — mechanically identical speed on both outputs at all times. For symmetrical twin-load machinery with direct motor mount.

Size Input Power (kW) Ratio Range Centre Dist. A (mm) Overall Length B (mm) Output Shaft LS (mm) Output Shaft S (mm) IEC Flange LA (mm) Weight (kg)
50 0.18 10:1 – 60:1 165 145 40 40 115 7
60 0.37 10:1 – 60:1 185 165 50 50 130 10
70 0.55 10:1 – 60:1 215 195 60 65 145 15
80 0.75 10:1 – 60:1 250 210 65 85 160 23
100 1.5 10:1 – 60:1 310 245 75 85 165 36
120 3.0 10:1 – 60:1 370 285 85 100 200 63
135 4.0 10:1 – 60:1 415 320 95 110 225 83
155 5.5 10:1 – 60:1 442 392 110 140 265 120

What Are the WPDX and WPDO — and Where Do They Fit in the WP Family?

To place the WPDX and WPDO in context, consider the WP family as a matrix of input and output options. The WPO/WPX provides dual output but requires a shaft-coupled motor input. The WPDA provides IEC motor flange input but only a single output. The WPDX and WPDO close the remaining quadrant — providing both IEC motor flange input AND dual output — in the most compact possible form factor.

WP Configuration Input Type Output Count Output Geometry
WPA / WPS Shaft coupling Single Solid shaft, single side
WPDA / WPDS IEC B5 motor flange Single Solid shaft, single side
WPO / WPX Shaft coupling Dual Co-axial (WPO) or 90° (WPX)
WPDO / WPDX IEC B5 motor flange Dual Co-axial (WPDO) or 90° (WPDX)

The WPDO and WPDX are manufactured on the same housing castings as the WPO and WPX respectively — with the IEC B5 input flange machined into the same face that accommodates the shaft input in the WPO/WPX. The result is a gear centre that is identical internally (same worm shaft, same bronze wheel, same bearing arrangement), with external interfaces upgraded to eliminate both the motor coupling and the output coupling. This three-point coupling elimination — motor input, and both output shafts if hollow-bore options are specified — can reduce total machine coupling count from up to five separate flexible elements to zero.

WPDX WPDO worm reducer dual output shaft detail with IEC flange
WPDO co-axial dual output worm gear reducer complete assembly with motor flange

How to Select WPDX or WPDO — Decision Guide for Australian Engineers

  1. Define Machine Geometry: If both driven loads are co-axial (same axis, extending from opposite sides of the machine symmetrically), specify WPDO. If the second driven load exits at 90° to the first (L-shaped drive layout, or second load on a perpendicular shaft), specify WPDX.
  2. Confirm Motor Frame: Select the IEC motor frame based on required input power. Cross-reference against the WPDX/WPDO IEC flange acceptance range for your chosen frame size. The same IEC flange compatibility as the WPDA applies — refer to the IEC frame-to-reducer size matching table from the WPDA section for guidance.
  3. Calculate Total Torque: The WPDO/WPDX rated output torque is the total available across both output shafts. Sum both output load torques (with service factors applied) and confirm this does not exceed the WPDO frame’s rated output torque. For unequal load applications, also check that the heavier-loaded shaft is not subjected to more than 70% of the total rated torque alone — if it is, use a torque-limiting coupling on the lighter-loaded stub.
  4. Check Self-Locking: At ratios 20:1 and above, the worm stage is self-locking. For WPDX, the bevel stage at the 90° output is not self-locking — if that load is gravity-loaded, a separate brake on the 90° output shaft is required per AS 4024.
  5. Consider Thermal Rating: The motor heat is transferred to the WPDO/WPDX housing via the IEC flange face. In ambient temperatures above 35 °C (common in QLD, WA, NT), confirm the thermal rated power at your local ambient. Specify synthetic ISO VG 220 oil if thermal margin is below 15%.

Accessories We Also Supply: Motor support brackets (for 100+ frame IEC motors), finished-bore sprockets for both output stubs, IEC adaptor rings for non-standard motor frames, torque-limiting couplings for unbalanced load protection, output shaft seals (NBR and Viton). Contact Ever-Power Australia for a combined supply quote.

WPDX / WPDO Applications in Australian Industrial Machinery

The WPDX and WPDO series are found across Australian industrial sectors wherever compact motor-direct twin-load drive is needed — eliminating separate motor bases, couplings, and cable lengths that would otherwise be required for two independently driven loads:

Industry & Location Application Model Key Advantage
Packaging (Sydney, Melbourne) Twin infeed/outfeed conveyor from single motor WPDO Mechanical sync + motor-direct = most compact possible drive
Dyeing/Textile (Melbourne, Geelong) Balanced fabric spreader rolls with direct motor WPDO No coupling on motor or either output roll
Pharmaceutical (Sydney, Melbourne) Tablet press dual-feed scraper drives WPDO Clean-room compatible — no external coupling surfaces
Agricultural Machinery (QLD, NSW) Dual-auger fertiliser spreader WPDX Motor offset from spreader centreline, 90° output matches auger geometry
Material Handling (Brisbane, Perth) Bridge crane symmetrical end-carriage travel WPDO Motor-direct flanged unit + identical wheel speed — minimum machine complexity

WPDX WPDO worm gear reducer application in twin-roll conveyor and packaging line
WPDO dual output motor flange worm reducer installed on Australian machinery

Case Study: Replacing Three-Component Drive Train with Single WPDO Unit

A Sydney pharmaceutical packaging OEM contacted Ever-Power with a machine redesign challenge: their tablet inspection conveyor used two separate 0.75 kW motors, each with its own coupling, gearbox, and motor base, driving the infeed and outfeed belts of an inspection carousel. The twin-motor arrangement required electronic speed synchronisation via a VFD master-slave configuration — a source of periodic calibration downtime and a potential single-point-of-failure for the production line.

Ever-Power’s engineering team proposed replacing both drives with a single WPDO 80 at 30:1 with an 80B5 0.75 kW brake motor mounted directly on the IEC flange. The result: both conveyor belts now run at mechanically identical speed from a single motor, eliminating the VFD synchronisation loop entirely. Total component count dropped from 10 items (2 motors + 2 VFDs + 2 couplings + 2 gearboxes + 2 motor bases) to 3 items (1 brake motor + 1 WPDO + 2 sprockets). Machine noise dropped by an estimated 8 dB(A) at the inspection station due to the elimination of two coupling guards and motor bases.

DX DO series WPDX WPDO worm gear reducer full product range Ever-Power Australia

What Australian Customers Say About the DX & DO Series

★★★★★

“The WPDO 80 at 30:1 with a direct-flanged brake motor on our Sydney conveyor redesign eliminated 7 components. Our maintenance team is genuinely impressed — one oil change per gearbox, one motor to manage, and zero calibration required on the speed sync. Best machine simplification we’ve done in years.”

— Daniel F., OEM Design Manager, Sydney NSW

★★★★★

“WPDX 100 at 20:1 on our Melbourne dual-auger fertiliser spreader. The 90° output was essential — the motor sits on the WPDX flange at the machine centreline and the two augers exit at right angles on either side. Clean layout, no couplings to maintain. 16 months running without a stop.”

— Gavin S., Agricultural Machinery Engineer, Melbourne VIC

★★★★☆

“Fitted WPDO 60 units to our Brisbane dyeing range spreader rolls with direct-flanged 63B5 servo motors. Fabric tracking is perfect — the mechanical synchronisation eliminates the speed correction we used to have to dial in after every product changeover. Not 5 stars only because we needed a 3-week lead time for the servo-compatible low-backlash variant.”

— Angela T., Production Engineer, Brisbane QLD

★★★★★

“We specify WPDO units for our bridge crane end-carriage travel drives in WA. The combination of motor-direct input and mechanical synchronisation of both wheels makes commissioning trivial — bolt on the motor, bolt on the sprockets, and go. No electronic synchronisation setup required at all. Ever-Power supply is reliable and competitive.”

— Peter N., Crane Design Engineer, Perth WA

Why Choose Ever-Power for WPDX / WPDO Worm Gear Reducers in Australia?

Ever-Power Worm Gear Reducer Co., Ltd. (Australia) at 27 Harley Crescent, Condell Park NSW 2200 maintains stock of WPDO and WPDX units in common frame sizes and ratios for 5–10 business day dispatch. Our engineering team provides free dual-load calculation analysis, IEC flange compatibility checks, and WPDX vs WPDO configuration guidance — all within one business day. Read about our full capabilities at About Us and explore additional technical resources at worm-gearbox.top.

Frequently Asked Questions — DX & DO Series (WPDX / WPDO) Worm Gear Reducer

1. What is the key difference between WPDO and WPO in choosing which to specify?+
Both the WPDO and WPO provide co-axial dual output shafts. The sole difference is the input interface: WPO uses a solid shaft input (motor connects via flexible coupling), while WPDO uses an IEC B5 motor mounting flange (motor bolts directly, no coupling required). Choose WPO when you are integrating an existing motor with a non-IEC shaft arrangement, or when a high-power motor beyond the WPDO’s input flange capacity range is needed. Choose WPDO when the motor is a standard IEC B5 frame, installation labour and compactness are priorities, and coupling maintenance is to be avoided. The gear centre — worm shaft, bronze wheel, output shafts — is identical in both configurations.
2. Can the WPDO drive two loads at significantly different torques simultaneously?+
The WPDO shares one worm wheel shaft between both outputs, so torque is distributed in proportion to resistance — if one load is heavier, it absorbs proportionally more. The WPDO can operate with unequal loads on the two stubs, provided the total torque (sum of both loads) does not exceed the frame’s rated output torque and neither individual stub torque exceeds the shaft’s rated torque capacity at that cross-section. If one load can drop to zero while the other remains at full rated torque (e.g., one conveyor jams while the other continues), fit a torque-limiting coupling rated at 50% of the WPDO’s total output torque on the lighter-loaded stub to protect against the full torque concentrating on the single active shaft.
3. Is a low-backlash WPDX/WPDO available for servo positioning applications?+
Yes — a precision low-backlash WPDO/WPDX variant with ≤15 arc-minutes backlash is available on custom order with a 3–4 week lead time. The standard WPDO/WPDX has approximately 30–60 arc-minutes backlash, suitable for positioning applications requiring ±0.5° or coarser. For servo positioning of twin-load drives requiring ±0.1° or better (such as synchronised label printing or CNC axis drives), specify the low-backlash variant with a servo motor on the IEC B5 flange. Low-backlash units also benefit from a more precisely ground worm thread profile (DIN Class 7 vs standard Class 8) and closer tolerance worm wheel hobbing, producing measurably lower lost motion and tighter speed tracking between the two output shafts.
4. How does the WPDX 90° output affect the total drive efficiency compared with WPDO?+
The bevel gear stage inside the WPDX that creates the 90° output adds approximately 2–3% additional power loss compared with the WPDO co-axial arrangement. For a WPDX 100 at 30:1 with a 1.5 kW motor, this represents approximately 30–45 W of extra heat generated at the bevel stage — typically absorbed by the cast-iron housing without requiring supplementary cooling in standard Australian ambient conditions up to 40 °C. The bevel gears share the main oil sump with the worm mesh, so no separate lubrication system is required. The 90° output shaft torque rating is equal to the co-axial output shaft rating at the same frame size.
5. Can the WPDO output shafts be hollow bore for shaft-direct mounting to the driven machines?+
Yes — both WPDO output stubs can be bored hollow as a factory custom option with a 3–4 week lead time. Combined with the IEC B5 input flange on the motor side, a hollow-bore WPDO eliminates couplings at all three interface points — motor side, output side 1, and output side 2 — creating a three-coupling-free drive train for twin-load machinery. This configuration requires a torque arm to react the housing rotation moment. Specify the required bore diameter, DIN 6885 keyway dimensions, and torque arm mounting arrangement for each output stub when ordering. Both stubs can be bored to the same or different diameters if the two driven shaft sizes differ.
6. What is the total installed cost saving of specifying WPDO vs two separate WPDA units?+
For a typical twin-load Australian industrial installation at WPDA size 100 equivalent power: two WPDA 100 units + two IEC 90B5 motors + two sets of coupling sprockets + two VFDs for synchronisation + two motor bases + installation labour for two aligned systems typically totals AUD $4,500–7,500 in hardware plus $500–1,200 in VFD commissioning and calibration. A single WPDO 100 + one IEC 90B5 motor (no VFD required) + two sprockets + installation labour for one unaligned system typically totals AUD $2,200–3,500. Total saving: AUD $2,000–5,000 per twin-drive installation, with an ongoing annual saving of approximately 2–4 hours of VFD calibration maintenance eliminated per installation.

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