Description
WPWA — Universal, Input Below | Size 40–250 | Ratio 1/5–1/60 | Multi-Position Mounting
Engineered for rotary indexing tables and CNC feed drives, the WPWA from Ever-power Australia Worm Reducer Co., Ltd. delivers dependable speed reduction with rugged HT200 cast iron housing for heavy-duty industrial service. Trusted by OEMs and system integrators across 60+ countries.
📜 WPWA Product Overview
The WPWA is a precision-built worm gear speed reducer designed for reliable right-angle power transmission in demanding industrial environments. Featuring rugged HT200 cast iron housing for heavy-duty industrial service, this unit transforms high-speed motor rotation into controlled, high-torque output suitable for rotary indexing tables and CNC feed drives. The worm gear mechanism provides inherently smooth, low-vibration operation with significantly lower noise levels than spur or helical gear alternatives — typically below 65 dB(A) at rated load.
All gear components are manufactured under ISO 9001-certified quality management. The worm wheel is machined from wear-resistant bronze alloy, while the worm shaft undergoes carburizing and precision grinding to achieve a hardened tooth surface. This material combination ensures gradual, predictable wear characteristics rather than sudden failure, giving maintenance teams confidence in planning scheduled interventions.
✅ Key Features & Benefits
Delivers exceptional output torque relative to its compact size, reducing overall machine footprint and structural loading.
Worm gear meshing produces significantly lower noise than spur or helical alternatives — ideal for noise-sensitive environments.
Multiple standard mounting positions allow installation in any orientation without adapter kits or custom brackets.
Premium bronze worm wheel and hardened steel worm shaft deliver consistent performance exceeding 20,000 operating hours.
🔧 Technical Specifications
| Parameter | Value |
|---|---|
| Configuration | Universal, Input Below |
| Size Range | 40–250 |
| Ratio Range | 1/5–1/60 |
| Housing Material | HT200 Cast Iron |
| Worm Wheel | ZCuSn10Pb1 Tin Bronze |
| Worm Shaft | 45# Steel, HRC 56-62 |
| Input Speed | 1,500 r/min |
| Protection | IP55 |
| Lubrication | Oil-bath |
| Mounting | A/B/C/D/E configurations |
| Ambient Temp | -10°C to +40°C |
| Paint | Standard green (RAL custom available) |
🏭 Application Industries
Mixers, dosing pumps, and rotary valves in hygienic production environments.
Thread winding, fabric tensioning, and screen-printing carriage drives.
Sliding gates, barrier arms, and rolling shutters for commercial access control.
📚 Selection & Sizing Guide
Proper sizing prevents premature failure. Follow this simplified procedure to confirm the WPWA suits your application:
Step 1: Calculate required output speed: n₂ = Motor Speed / Ratio
Step 2: Determine required output torque from your machine design.
Step 3: Apply service factor (fs) based on duty cycle, load type, and daily running hours.
Step 4: Verify M₂ × fs ≤ rated torque from the specification table above.
Step 5: Calculate motor power: P₁ = (M₂ × fs × n₂) / (9550 × η)
💡 Need help? Our engineering team provides free sizing assistance — contact us with your torque, speed, and application details.
🛠 Installation & Maintenance
☑ Mount on a flat, rigid surface with all foundation bolts properly torqued. ☑ Align motor and gearbox shafts within 0.5° angular and 0.05 mm parallel tolerance. ☑ Fill lubricant to the oil-gauge center line before first operation. ☑ Remove the breather vent plug to allow air circulation. ☑ Perform the first oil change after 100 operating hours, then every 2,500 hours thereafter. ☑ Maximum allowable oil temperature is 95°C — if exceeded, check load, alignment, and oil condition.
💧 Lubrication
Use synthetic PAG oil (ISO VG 460) for ambient temperatures 15–40°C, or ISO VG 320 for cooler environments. Recommended brands: Shell Tivela S, Mobil Glygoyle, or Esso Spartan EP series. Mineral oils are acceptable but result in higher operating temperatures and shorter change intervals. Fill to the sight-gauge center line.
🚧 Troubleshooting
| Symptom | Cause | Action |
|---|---|---|
| 🌡 Overheating | Overload / misalignment / low oil | Reduce load; re-align; check oil level |
| 📳 Vibration | Loose bolts / worn bearings | Re-torque fasteners; replace bearings |
| 🔈 Noise | Poor mesh / insufficient oil | Inspect gears; refill lubricant |
| 💧 Leakage | Worn seals / loose drain plug | Replace seals; tighten with sealant |
❓ Frequently Asked Questions
What reduction ratios are available?
This model offers a comprehensive range of standard ratios. Lower ratios use multi-start worms for higher efficiency, while higher ratios employ single-start worms enabling self-locking. Custom ratios can be produced for OEM projects upon request.
Can it work with both IEC and NEMA motors?
Yes. The input flange accommodates IEC metric motor frames as well as NEMA imperial frames, providing global motor-sourcing flexibility without adapter plates.
Is this gearbox self-locking?
Self-locking depends on the ratio. Higher ratios provide reliable static self-locking. For safety-critical lifting, we recommend adding an external brake regardless of ratio.
What lubricant is recommended?
Synthetic PAG oil ISO VG 460 for ambient 15-40°C, or ISO VG 320 for cooler environments. Mineral oils are acceptable but run hotter. Fill to the sight-gauge center line; first change at 100 hours, then every 2,500 hours.
What customization options are available?
Ever-power offers custom shaft diameters, non-standard keyways, custom paint colors, double output shafts, food-grade lubrication, high-temp seals, and private-label branding for OEM partners.
⭐ Customer Feedback
⭐⭐⭐⭐⭐
“The dual IEC/NEMA compatibility saved us from redesigning our mounting plates. Brilliant engineering decision.”
— Sarah M., Design Engineer, UK 🇬🇧
⭐⭐⭐⭐⭐
“The machining quality rivals European brands at a fraction of the price. Our QC department was impressed.”
— Hans W., Engineering Lead, Germany 🇩🇪
Looking for a Reliable Worm Reducer Supplier?
Ever-power serves OEMs and distributors in 60+ countries. Volume pricing, custom branding, and dedicated engineering support available.
Ever-power Australia Worm Reducer Co., Ltd. • About Us
