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WPWKA Universal Speed Cast Iron Worm Reducer — Product Overview
Universal P-housing with A-type input from below and K hollow bore coupling-free output — shaft-mount in any of 5 WPW orientations.
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.

WPWKA Universal Speed Worm Reducer Specifications

| Parameter | Specification |
|---|---|
| Series | Universal Speed WPW |
| Housing | Universal P-housing with A-type input from below and K hollo |
| Input | Solid shaft, A-type (below) |
| Output | Hollow bore (K-type) |
| Ratio | 1/5–1/60 |
| Size Range | 40–250 mm |
| Mounting | Foot-mount, WPW universal body, all orientations |
| Housing Material | 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 + A-Type Input + K Hollow Bore |
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 |
WPWKA Worm Reducer — Core Features
■ WPW Universal Body + A-Type Input + K Hollow Bore
Universal P-housing with A-type input from below and K hollow bore coupling-free output — shaft-mount in any of 5 WPW orientations.
■ K Hollow Bore — Coupling-Free in Any Orientation
Driven shaft inserts directly in any WPW mounting orientation — no coupling hardware regardless of installation position.
■ A-Type Below Input — Standard Motor Coupling
Standard A-type bilateral input shaft accepts conventional motor coupling hardware from either side.
■ Universal Shaft-Mount — 5 Orientations
Torque arm boss enables shaft-mounting the WPWKA in any WPW orientation — foot-mount and shaft-mount both available.
■ Output Torque to 4,440 Nm — K-Bore Full Capacity
WPWKA torque ratings identical to WPWK at all sizes.
■ One Product — All A-Type Hollow Bore Orientations
Eliminates direction-specific A-type hollow bore reducer variants from the BOM.
WPWKA Worm Reducer — Industry Applications

☷ Universal A-Type Hollow Bore Agricultural Drives
Agricultural equipment with shaft-mount drives using standard motor coupling (A-type) in multiple orientations standardises on WPWKA.
⚒ Multi-Orientation Shaft-Mount Industrial Drives
Industrial equipment with hollow bore shaft drives in varied orientations uses WPWKA universal body to standardise.
⚊ Conveyor Hollow Bore Multi-Position Drives
Conveyor head shaft drives in multiple orientations standardise on WPWKA — one product, all positions, coupling-free output.
⚙ Process Agitator Universal Hollow Drives
Process vessel agitator shafts in various positions use WPWKA — universal body, A-type input, hollow bore output.
Ever Power Manufacturing Quality — WPWKA 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.
WPWKA Universal Worm Reducer — Customer Reviews
“WPWKA on our equipment shaft drives. A-type input, K-bore output, universal body — one product for all shaft positions.”
“Used WPWKA on conveyor head drives in multiple orientations. Standard motor coupling, hollow bore output. Universal body simplifies our drive inventory.”
“WPWKA on our agricultural shaft drives. A-type input with standard hardware, K-bore eliminates field coupling failures.”
“Good K+A universal unit. WPWKA-90 in multiple positions. All working. Would like full bore diameter table.”
Frequently Asked Questions — WPWKA Universal Speed Worm Reducer
Get Your WPWKA 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.



