WPWS Universal Speed Cast Iron Worm Gearbox — WPW Series

Overhead motor configurations — where the motor shaft enters the gearbox from above — combined with the installation flexibility of a universal housing platform are required by elevated motor platforms, ceiling-mount motor installations, and process equipment buildings where the motor must be positioned above the gearbox. The WPWS Universal Speed Cast Iron Worm Gearbox provides the WPW-series universal body with S-type (above) input shaft configuration, delivering overhead motor drive geometry with universal housing mounting versatility across 5 shaft direction configurations in a single cast iron product.

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■ S-Type Input (Overhead) + Universal W-Body: Overhead Motor in Any Orientation

WPWS provides the S-type (above) input shaft geometry with the WPW universal body’s 5 shaft direction configurations. Overhead motor drive capability combined with universal housing mounting versatility.

■ S-Input Oil Circuit Validated for All 5 Shaft Directions

The WPWS oil channels, fill ports, and seals are validated for S-type (overhead) input shaft orientation across all 5 shaft direction configurations of the universal body.

■ Primary Stage S-Input Bearings — Rated for Overhead Entry Loads

Bearing selection and preload for the S-type input accounts for the specific axial and radial loads generated by the overhead motor coupling position across the full WP torque rating.

■ Full WP Ratio Range 1/5–1/60 in S-Input Orientation

All standard WP ratios are available in the WPWS overhead configuration across all 5 shaft direction configurations.

■ Output Torques to 4,796 Nm in Overhead Motor Configuration

The S-type input orientation does not reduce the WPWS output torque rating. Maximum output torques match the WPWA (same size/ratio) at up to 4,796 Nm at size 250.

■ 5 Shaft Direction Configurations Available With S-Input

All 5 shaft direction configurations (A–E) are available for the WPWS with S-type overhead input.

⚔ Overhead Motor Process Drives — Universal Housing

Process plants with overhead motor positions across diverse equipment orientations use the WPWS universal body for standardised overhead motor drives in all installation positions.

⚒ Elevated Platform Motor Drives — Universal Standard

Industrial elevated motor platforms serving multiple machine positions in different orientations use the WPWS as their overhead motor universal gearbox standard.

☵ Slow Vessel Drives — Overhead Motor Universal

Mixing vessel drives with overhead motor mounting across different vessel orientations and configurations use the WPWS for overhead motor geometry in the universal body.

⚊ Ceiling-Mount Motor Equipment

Facilities where motors are ceiling-mounted above all equipment in multiple installation positions use the WPWS for overhead motor geometry across diverse drive locations.

⚛ OEM Overhead Motor Platform — Universal Housing

OEM machine builders with overhead motor requirements across multiple machine variants use the WPWS as their universal S-input gearbox, covering all machine orientations with one product.

✎ ISO 9001:2000 Certified

Every WPWS is manufactured, assembled, and tested under ISO 9001:2000 quality management. Our factory was among the first in this product category to achieve this certification.

✎ CE Marking

Full CE marking confirms compliance with EU Machinery Directive 2006/42/EC — covering safety, design standards, and manufacturing quality for all WPW-series universal configurations.

✎ Pre-Shipment Testing

Noise test (below 72 dB(A) at rated load), oil leak test (30-minute pressurisation), torque transmission test (output torque within ±5% of rated). Failed units are reworked — not shipped.

✎ Universal Configuration Quality

Each shaft direction configuration (A–E) is verified dimensionally for correct bore position, keyway orientation, and oil channel routing before leaving our production line.

“WPWS on our overhead motor drives across multiple machine orientations in our elevated plant. S-type input is the standard for our motor platform. Universal body means one product covers all drive positions. Consistent quality and reliable delivery across multiple orders.”

“WPWS overhead input universal gearbox on our process plant elevated drives. S-input oil circuit validation was important for our process engineers. Universal body covers our diverse drive positions from one specification. Good practical product.”

“We standardised on WPWS for all our overhead motor process drives across our multi-configuration plant. S-input universal body is the correct standard for our elevated motor platform. Consistent performance and quality across all our ordered units.”

“WPWS S-input universal on our overhead motor platform drives. Overhead input + universal body covers our multiple drive positions. Good quality and consistent with catalogue data. S-type oil fill instructions for the various shaft direction configurations should be clearly documented.”