TSCHAN industrial shaft couplings by RINGFEDER

TSCHAN mechanical shaft couplings engineered by RINGFEDER: TNM (Nor-Mex), TNS, heavy TNB, TND stainless steel disc, TNZ gear, and TNK crane barrel coupling models.

TNM elastomer jaw couplings formerly TSCHAN Nor-Mex up to 40,000 Nm

Elastomer jaw couplings of the TNM line (formerly TSCHAN Nor-Mex) deliver torsionally flexible shaft connections with dampening of shock loads. The fail-safe design handles nominal torques up to 40,000 Nm while compensating for angular, axial and radial shaft misalignments without backlash.

Nominal torque ratings up to 40,000 Nm for medium and heavy drive assemblies.
Easily replaceable intermediate elastomeric rings with varied Shore hardness.
Effective compensation of angular, radial and axial drive shaft misalignments.
Configurable variants equipped with integrated brake drums or wide brake discs.

TNS elastomer jaw couplings formerly TSCHAN S up to 13,500 Nm

Compact elastomer jaw couplings of the TNS line (formerly branded as TSCHAN S) are engineered for reliable vibration damping and protection of drive systems from dynamic overloads. The units handle nominal torques up to 13,500 Nm and remain operational during transient peak shock loads.

Nominal torque capacity reaching up to 13,500 Nm in compact housing envelope.
Wear-resistant elastomeric buffer inserts resistant to industrial lubricants.
Fail-safe hub design fabricated from heavy-duty ductile iron or forged steel.
Straightforward visual inspection and buffer renewal without moving equipment.

TNB heavy-duty jaw couplings formerly TSCHAN B up to 260,000 Nm

Heavy-duty jaw couplings of the TNB series (formerly TSCHAN B) are developed for rolling mills, heavy belt conveyors, crushers and mining shovels. The rugged architecture utilizing individual elastomer buffers transfers nominal torques up to 260,000 Nm and smooths severe torsional shocks.

High torque transmission capability handling nominal loads up to 260,000 Nm.
Segmented elastomeric buffers with varied durometers for heavy shock mitigation.
Fast in-situ buffer replacement without unbolting or repositioning machinery.
Heavy industrial configurations with large diameter brake drums and steel discs.

TND steel disc couplings formerly TSCHAN Posimin up to 130,000 Nm

Torsionally rigid disc couplings of the TND line (formerly TSCHAN Posimin) feature flexible disc packs manufactured from spring-grade stainless steel. The assemblies ensure zero-backlash torque transmission up to 130,000 Nm without lubricant requirements across broad operating temperatures.

Zero backlash and high torsional stiffness throughout operational lifespan.
Flexible disc packs made of spring stainless steel for high endurance limit.
No sliding friction components: completely maintenance-free without grease.
Nominal torque ratings up to 130,000 Nm in single and double-flex disc designs.

TNZ industrial gear couplings formerly TSCHAN Posiflex up to 195,000 Nm

Heavy industrial gear couplings of the TNZ line (formerly TSCHAN Posiflex) are built for heavy machinery demanding high power density. Crowned external teeth compensate for angular and axial misalignments while transmitting nominal torques up to 195,000 Nm in tight installation envelopes.

Outstanding power density within compact outer sleeve dimensional envelopes.
Crowned gear tooth geometry accommodates angular misalignment up to 1.5 deg.
High-grade quenched and tempered alloy steel for hubs and outer gear sleeves.
Long-term grease retention through high-integrity heavy-duty sealing rings.

TNK barrel couplings formerly TSCHAN TK up to 400,000 Nm

Crane barrel couplings of the TNK series (formerly known as TSCHAN TK) are purpose-built to link gearbox output shafts directly to wire rope hoist drums. The coupling supports massive torques up to 400,000 Nm and relieves the reducer shaft from rope-induced bending moments.

Specialized torque connection for wire rope hoist drums in hoisting cranes.
Nominal torque ratings up to 400,000 Nm absorbing heavy radial hoist loads.
Integrated visual wear pointer providing rapid condition assessment on site.
Effective radial and axial misalignment compensation under rope drum weight.

Engineering heritage of TSCHAN and integration within RINGFEDER

Founded in 1924 in Neunkirchen, Germany, mechanical manufacturing firm TSCHAN GmbH served as a prominent European specialist in non-shiftable industrial shaft couplings for multiple decades.

In 2014, the operation merged into RINGFEDER Power Transmission, uniting extensive engineering capabilities with advanced manufacturing practices across heavy industries.

Coupling product lines continue production following original engineering drawings and specifications, preserving designations such as TNM, TNS, TNB, TND, TNZ, TNK, and TNR.

High standards in precision machining and geometric tolerances guarantee compatibility of modern production assemblies with legacy machinery installed in earlier operational phases.

Design features of TNM elastomer jaw couplings formerly Nor-Mex

TNM elastomer jaw couplings, historically recognized by engineers as TSCHAN Nor-Mex, represent torsionally flexible shaft elements with integrated dampening capabilities.

The assembly comprises two hubs with interlocking jaws and a precision-moulded elastomeric ring made of durable synthetic polymer separating drive and driven equipment shafts.

The flexible insert effectively attenuates resonant torsional vibrations and accommodates unavoidable operational shaft misalignments, including axial travel, radial displacement, and angular offsets.

Varied Shore durometer options for the intermediate ring allow engineers to tailor torsional stiffness to specific electric motor and gearbox dynamics.

Compact TNS couplings for industrial drive overload mitigation

TNS series flexible couplings, formerly designated as TSCHAN S, are engineered for compact installation in industrial drives powering centrifugal pumps, compressors, blowers, and agitators.

The architecture features optimized hub geometries and low moments of inertia, reducing startup shock forces on electrical motor bearings and gear teeth.

A fail-safe jaw layout guarantees torque transmission even in the event of extreme buffer wear during operational anomalies, preventing abrupt stops of industrial process equipment.

Inspection and elastomer buffer renewal proceed smoothly on site without requiring difficult disassembly or spatial repositioning of connected drive machinery.

Heavy-duty TNB jaw couplings for severe mechanical applications

For demanding operating conditions in rolling mills, quarry conveyors, heavy ball mills, and rotary kilns, heavy-duty TNB couplings (formerly TSCHAN B) provide robust performance.

Unlike continuous ring designs, TNB models transmit torsional force through discrete elastomeric buffer blocks retained within individual pockets around the hub perimeter.

This modular arrangement handles nominal torques up to 260,000 Nm and absorbs energetic dynamic impact spikes when processing raw materials.

The mechanical layout permits maintenance teams to renew individual elastomeric buffers directly on the driveline without removing massive drive shafts or shifting heavy planetary gear units.

Zero-backlash TND steel disc couplings for precision machinery

TND series disc couplings, previously marketed under the TSCHAN Posimin trademark, belong to all-metal torsionally stiff compensating driveline connections.

The flexible elements consist of precision-laminated disc packs made of high-strength spring stainless steel, secured to precision flanges using ground fitted structural bolts.

TND units maintain high rotational accuracy with complete absence of angular play, making them suitable for high-speed turbocompressors, high-pressure boiler feed pumps, and dynamic test rigs.

The absence of sliding friction parts eliminates lubrication requirements and delivers long-term maintenance-free operation across wide ambient temperatures.

TNZ gear couplings and TNK crane rope drum driveline assemblies

In heavy hoisting drives, overhead travelling cranes, and metallurgical plant lines, TNZ gear couplings (formerly TSCHAN Posiflex) and TNK barrel couplings (TSCHAN TK) perform vital roles.

TNZ assemblies with crowned external gear teeth transfer torques up to 195,000 Nm in minimal space, accommodating angular deviations through floating tooth contact.

Specialized TNK barrel couplings install directly between the crane reducer slow-speed shaft and the wire rope hoist drum, supporting nominal torques up to 400,000 Nm.

Hardened spherical rollers transmit massive torsional torque while isolating reducer bearings from bending stresses induced by rope pull during hook lifting maneuvers.

TSCHAN and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of TSCHAN and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.