PTC ASIA 2026 · Shanghai · 3–6 November →
For Manufacturers → Partner With Us
Flanged Gear Coupling · FLENDER · ZAPEX ZN / ZW

FLENDER ZAPEX Torsionally Rigid Gear Couplings

High-capacity gear coupling family for heavy industrial drives.

MECHATRIC EngineeredOriginal Brand & EquivalentReplacement Solution

Supplied as the original brand or as an engineered equivalent, depending on availability and the required delivery time.

What is a ZAPEX coupling?

ZAPEX is a torsionally rigid gear coupling series by FLENDER. Hubs with crowned external teeth mesh with internally toothed sleeves; the crowned teeth allow angular and radial misalignment while transmitting very high torque in a compact size. ZAPEX couplings are lubricated and are used in heavy-duty drives.

Engineering Summary

Designed for high torque density and demanding industrial applications where gear coupling characteristics are required.

Key Benefits

  • High torque capacity
  • Heavy-duty service
  • Industrial configurations

Technical Features

  • Gear-tooth torque transmission
  • Lubricated design

Technical Specifications

Technical data under verification

ParameterStatus
Rated (nominal) torque (Nm)Being verified · available on request
Maximum torque (Nm)Being verified · available on request
Maximum speed (rpm)Being verified · available on request
Bore diameter max (mm)Being verified · available on request

Verified values for this series are being prepared from the manufacturer's current documentation. Send your operating data and we will provide the matching specification and datasheet.

About the brand

FLENDER

FLENDER is a German manufacturer of mechanical drive technology, including industrial gear units and couplings, headquartered in Bocholt, Germany. Its coupling portfolio includes the N-EUPEX, RUPEX, N-BIPEX, ELPEX, ZAPEX, ARPEX and FLUDEX series.

Brand names are used for identification and technical reference. MECHATRIC is not an authorized representative of FLENDER unless explicitly stated.

More FLENDER products →

Replacement / Interchange

Replacing an existing component?

Engineering Review Required

Send the existing brand, series and size, a nameplate photo or a drawing. Our engineers evaluate dimensional and technical compatibility before recommending an original, alternative or custom solution.

Brand names and model codes are used only for identification and technical reference. Technical interchangeability is confirmed against the specific application before final selection.

Request Interchange Review

Request a Quote

Share quantity, application and operating data. Every RFQ is reviewed by MECHATRIC engineering.

Ask an Engineer Request a Quote