Description
WPWDS Universal Speed Cast Iron Worm Reducer — Product Overview
Universal P-housing with overhead IEC motor flange (no adaptor) and D-split maintenance cover — the fully specified overhead motorised universal reducer.
The WPW P-housing accommodates all five standard shaft direction configurations in a single casting — eliminating the need for direction-specific housing variants. Input power from 0.06 kW (size 40) to 98 kW (size 250), output torques from 2.2 Nm to 4,440 Nm across 11 standard sizes.

WPWDS Universal Speed Worm Reducer Specifications

| Параметр | Техникалық сипаттама |
|---|---|
| Series | Universal Speed WPW |
| Housing | Universal P-housing with overhead IEC motor flange (no adapt |
| Input | IEC motor flange, S-type (overhead) |
| Output | Solid shaft, horizontal |
| Ratio | 1/5–1/60 |
| Size Range | 40–250 mm |
| Mounting | Foot-mount, WPW universal body, all orientations |
| Корпус материалы | FC20+ grey cast iron (GG20) |
| Worm Wheel | Tin-bronze ZCuSn10Pb1 |
| Worm Shaft | 20CrMnTi, 55–60 HRC surface |
| Lubrication | N150–N220 (−30°C–40°C); N220–N320 (40°C–65°C) |
| Max Oil Temp | 95°C continuous |
| Weight Range | 6.5/7–430/481 kg |
| Key Feature | WPW Universal Body + S-IEC Overhead Flange + D-Split |
Size & Performance Data
| Size (mm) | Ratio | Input (kW) | Output Torque (Nm) | A (mm) | AA (mm) | AB (mm) | BB (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| 40 | 1/5–1/60 | 0.06–0.78 | 2.2–26.5 | 121/133 | 53 | 40 | 49/62 | 6.5/7 |
| 50 | 1/5–1/60 | 0.10–1.33 | 4.5–54.0 | 133/148 | 57 | 44 | 55/70 | 9/10 |
| 63 | 1/5–1/60 | 0.19–2.25 | 8.5–104 | 155/171 | 67 | 51 | 65/82 | 14/16 |
| 75 | 1/5–1/60 | 0.32–3.75 | 14.5–175 | 175/191 | 75 | 57 | 73/91 | 20/23 |
| 90 | 1/5–1/60 | 0.62–6.98 | 28–316 | 205/224 | 89 | 67 | 87/107 | 33/38 |
| 110 | 1/5–1/60 | 1.18–11.9 | 53–540 | 238/260 | 103 | 78 | 101/123 | 54/62 |
| 130 | 1/5–1/60 | 2.02–19.7 | 91–891 | 266/290 | 115 | 87 | 112/136 | 78/89 |
| 150 | 1/5–1/60 | 3.07–28.8 | 139–1,304 | 302/329 | 131 | 100 | 128/155 | 113/128 |
| 175 | 1/5–1/60 | 5.13–45.9 | 232–2,074 | 348/377 | 151 | 115 | 147/177 | 170/191 |
| 200 | 1/5–1/60 | 8.02–66.2 | 363–2,993 | 392/424 | 170 | 130 | 165/199 | 250/265 |
| 250 | 1/5–1/60 | 13.0–98.0 | 590–4,440 | 452/481 | 197 | 150 | 195/232 | 380/420 |
WPWDS Worm Reducer — Core Features
■ WPW Universal Body + S-IEC Overhead Flange + D-Split
Universal P-housing with overhead IEC motor flange (no adaptor) and D-split maintenance cover — the fully specified overhead motorised universal reducer.
■ S-Type IEC Flange — Direct Overhead Motor Mount
Motor bolts on overhead in four bolts without adaptor. Minimum lateral projection and overhead drive height.
■ D-Split Cover — In-Situ Access in Any Orientation
Cover removes with motor overhead and shaft connected — universal maintenance access across all 5 mounting orientations.
■ Universal Body — Most Compact Overhead Motor Drive
S-type IEC flange in the universal P-housing achieves the minimum overhead motor drive footprint across all mounting orientations.
■ Output Torque to 4,440 Nm — Full Capacity
Features do not reduce torque ratings.
■ Single Product — All Overhead Motorised Orientations
Eliminates direction-specific overhead IEC motorised reducer SKUs.
WPWDS Worm Reducer — Industry Applications

⚒ Universal Overhead Motorised OEM Drive
OEM builders use WPWDS for all overhead IEC motor drive positions — universal body, D-split access, minimal footprint.
⚊ Compact Motorised Process Line Overhead Drives
Process lines with overhead motor direct drives standardise on WPWDS for compact installation and in-situ maintenance.
☵ Pump Station Overhead IEC Drives
Pump stations with IEC motor-direct drives using overhead motor geometry standardise on WPWDS universal body.
⚛ Infrastructure Overhead Motor Drives
Infrastructure drives requiring overhead IEC motor and in-situ maintenance access use WPWDS universal body for all mounting orientations.
Ever Power Manufacturing Quality — WPWDS Worm Reducer

■ ISO 9001:2000 Certified Production
Every WPW unit is manufactured under ISO 9001:2000 quality management. Raw material inspection, in-process checks, and final testing are documented and traceable.
■ CE Marking — EU Machinery Directive 2006/42/EC
Full CE compliance for export to EU, UK, Australian, and New Zealand markets.
■ Pre-Shipment Testing: Noise, Leak, Torque
Noise below 68 dB(A) at rated load, 30-minute pressurisation leak test, and output torque within ±5% of rated. Non-conforming units reworked before shipment.
■ FC20+ Material Certification
Housing castings verified by mill certificates: minimum 220 MPa tensile strength, 160–200 HB hardness.
WPWDS Universal Worm Reducer — Customer Reviews
“WPWDS on our narrow machine overhead drives. IEC S-type flange, D-split cover, universal body. Compact overhead motor at all positions.”
“Used WPWDS on pump station overhead IEC drives. D-split for maintenance, compact overhead motor.”
“WPWDS on our process line overhead motor drives. Universal body, IEC overhead, D-split — covers all our orientations.”
“Good S-IEC universal unit. WPWDS-90 at multiple positions. Compact overhead drive. Would appreciate S-type IEC oil volume table.”
Frequently Asked Questions — WPWDS Universal Speed Worm Reducer
Get Your WPWDS Quote Today
Tell Ever Power your application requirements — torque, ratio, mounting, and shaft dimensions. Engineering response within 24 hours. OEM specifications, bulk pricing, and global shipping available.



