FLENDER ZN Gear Coupling

Double-jointed gear coupling
Nominal torque range from TKN = 1,020 Nm up to 162,500 Nm with 12 sizes
Temperature range: from –20 °C to +80 °C

Strong and reliable: ZAPEX ZN® couplings connect machine shafts and compensate for angular and radial misalignment.

ZAPEX gear couplings from the ZN series are made of high-quality quenched and tempered steel and are manufactured according to the modular construction system.

Your benefits at a glance

Long service life and minimal maintenance requirements as a result of reliable grease lubrication of the gear teeth
Small dimensions, low weight and low mass moments of inertia are achieved by means of an intelligent design and combination of materials
Large safety reserves even at high shock loads
Maximum operational reliability through optimal tooth shape and use of high-quality materials
Suitable for horizontal mounting and, with a special design, for vertical mounting
Suitable for use in potentially explosive environments; certified according to 2014/34/EU (ATEX)

Made in Germany, in use worldwide

Mining and Cement: conveyor belts, heating technology
Steel Production: milling technology, shears, straightening machines, high mills, coilers, roller conveyors
Cranes: hoisting and luffing gear systems, slewing gear systems, trolley and travel gear systems
Marine and Shipbuilding: thrusters
Oil and Gas: installation vessels, pumps, fans, compressors, jack-up rigs
Power Generation: water turbines
Chemicals and Pharmaceuticals: driers, pumps and compressors, mixers, agitators
Plastics and Rubber: kneaders, shredders
Pulp and Paper: woodgrinders, waste paper, wet section, dry section, smoothers and cylinders, calenders
Water and Wastewater: pumps
Food and Beverage : mixers
Sugar: countercurrent cossette mixers, sugar cane mills
Passenger transport: cable cars

Designs of ZAPEX ZN gear couplings

ZAPEX ZNZS	with adapter
ZAPEX ZNW	with intermediate shaft
ZAPEX ZNBG	with straight brake disc
ZAPEX ZNNA	with axial backlash limiter
ZAPEX ZNZA	with adapter and axial backlash limiter
ZAPEX ZNNV	vertical type
ZAPEX ZNN	for axial displacement

Further application-related coupling types are available. Please feel free to contact us.

Did you know?

The design of the hub of the ZAPEX ZN coupling has been optimized for maximum bore capacity (up to 288 mm). The smaller and more compact coupling reduces the load on the bearings in the drive and driven machines. This ensures a long service life for the drive.

Technical data ZAPEX ZNN 83-424

Description	Outer diameter OD mm	Nominal torque T_KNNm	Rotational speed n_Kmaxmin^-1	Hub diameter ND1/ND2 mm
ZAPEX ZNN 83	117	1020	8500	67
ZAPEX ZNN 107	152	2210	7700	87
ZAPEX ZNN 130	178	4020	6900	108
ZAPEX ZNN 156	213	6600	6200	130
ZAPEX ZNN 181	240	11000	5800	153
ZAPEX ZNN 211	280	19200	5100	180
ZAPEX ZNN 250	318	30680	4500	214
ZAPEX ZNN 274	347	43550	4000	233
ZAPEX ZNN 307	390	61750	3750	260
ZAPEX ZNN 333	425.5	97100	3550	283
ZAPEX ZNN 364	457	117000	3400	312
ZAPEX ZNN 424	527	162500	3200	371

Our brands

CURRAX has been focusing on cooperation with strong partners for years. SIEMENS, FLENDER and INNOMOTICS are a conscious commitment to quality and service.

Years of cooperation have affirmed their mutual trust, allowing us to set the optimal conditions for our customers.