Top Background Image
  • July 30, 2026

WPDA Series Cast Iron Worm Gear Reducer – Dimensions & Mounting Drawings (Lower Input Flange)


WPDA Series Worm Gear Reducer – Dimensions & Mounting Drawings

The WPDA series worm gear reducer features a lower input flange configuration. The motor mounts directly onto the input flange positioned below the output shaft, enabling direct coupling without additional couplings or belt drives.

Dimensional drawing of WPDA worm gear reducer.png

Key Features

●Cast iron housing – heavy-duty construction

●Lower input flange – direct motor mounting (IEC standard flange)

●45# hardened steel worm + tin bronze worm wheel

●Self-locking capability

●Ratios: 10:1 – 60:1 (single stage)

●Space-saving – eliminates coupling and reduces footprint

Standard Sizes Available

WPDA series covers sizes 50, 60, 70, 80, 100, 120, 135, 155, 175, 200, 250


Mounting Dimensions (Typical Drawing References)

DimensionDescriptionSize 100 (Reference)
ACenter distance100 mm
Flange TypeIEC B5 or B14Refer to drawing
Input Flange PositionLower (below output)
Output ShaftDiameter × KeywayRefer to drawing
Full dimension drawings available – contact us for PDF catalog.

When to Choose WPDA?

Choose WPDA when you need a compact, direct-drive solution where the motor mounts directly to the gearbox input flange without additional coupling.




Quick Inquiry