Stromag industrial clutches, brakes, couplings, and limit switches

Stromag power transmission systems (Regal Rexnord): highly flexible couplings Periflex TT and VN, spring-applied brakes NFF, and planetary limit switches Series 51.

Stromag: industrial power transmission technology and couplings

German manufacturer Stromag GmbH has engineered high-integrity couplings, industrial brakes, and limit switches for critical drivetrain assemblies since 1932. Operating from Unna, Germany, the company manufactures proven components for heavy engineering, marine, and power generation.

More than nine decades of continuous engineering excellence in heavy drivetrains
Comprehensive component testing on automated factory load verification test rigs
Integral brand within the global industrial drivetrain leader Regal Rexnord
Engineering selection of couplings, friction linings, and tyres per drive data

Stromag Periflex TT highly flexible shaft couplings

Stromag Periflex TT rubber-fabric shaft couplings transmit nominal torque from 35 to 20,500 Nm and absorb shaft misalignments without backlash. The flexible tyre dampens torsional vibrations and isolates shock loads in heavy metallurgical machinery and crane drive systems.

Broad nominal torque spectrum for heavy rotating shafts spanning 35 to 20,500 Nm
Simultaneous compensation of radial, axial, and angular misalignments without play
Rapid radial tyre exchange without moving or disassembling coupled drive machinery
Specialized mounting configurations with brake drums and discs for rolling mills

Stromag Periflex VN plug-in elastomeric disc couplings

Stromag Periflex VN plug-in disc couplings deliver nominal torque from 160 to 63,000 Nm and connect drive shafts directly to engine flywheels complying with SAE J620. High-temperature elastomeric formulations withstand mineral oils and thermal stresses in generator rooms.

Nominal torque rating of the elastomeric disc element spanning 160 to 63,000 Nm
Direct connection to internal combustion diesel engine flywheels under SAE J620
Linear torsional spring stiffness delivering predictable damping of critical resonances
Dependable continuous operation in marine propulsion, gen-sets, and pump skids

Stromag NFF spring-applied electromagnetic brakes

Stromag NFF double-face brakes produce dynamic braking torque from 20 to 10,000 Nm within an IP66 sealed enclosure. The dry-friction electromagnetic system releases on DC voltage, ensuring fail-safe emergency holding on crane hoists, port cranes, and marine winches.

Fail-safe spring application upon power interruption to the DC magnetic coil
Rugged metallic enclosure with IP66 ingress protection against marine conditions
Contactless inductive sensors monitoring friction lining wear and working air gap
Heavy-duty NFF-LS multi-face configurations delivering holding torque to 44,000 Nm

Stromag Series 51 geared cam limit switches

Stromag Series 51 geared cam limit switches employ a patented planetary gear system covering a ratio range of 4.1 to 16,000 revolutions of the driving shaft. Large 60 mm diameter cam discs provide micrometric switching accuracy for crane hoists and wind turbines.

Modular planetary gear ratios mapping from 4.1 up to 16,000 input revolutions
Positive-opening auxiliary switching contacts complying with IEC 60947-5-1 Annex K
Direct internal mounting of precision rotary encoders and feedback potentiometers
Compact synthetic and metal enclosure options with protection ratings up to IP66

Stromag Light Cam Compact geared limit switches

Stromag Light Cam Compact limit switches utilize a 74:1 worm and spur gear reduction engineered for space-restricted hoists, compact winches, and stage machinery. The robust PBT synthetic housing with IP66 ingress protection withstands severe operating environments.

Compact worm and spur gear combination featuring a high reduction ratio of 74:1
Permissible driving shaft input speed rating up to 400 revolutions per minute
Self-locking micrometer adjustment mechanism for reproducible cam disc settings
Corrosion-resistant PBT synthetic housing delivering complete IP66 dust protection

Stromag engineering heritage and German drivetrain technology standards

German mechanical engineering manufacturer Stromag GmbH has designed and manufactured high-integrity couplings, braking systems, and geared cam limit switches for demanding industrial drives since 1932.

Operating from headquarters and main manufacturing facilities in Unna, Germany, the company unites specialized research engineers and drivetrain physicists.

Stromag drivetrain assemblies are deployed across steel mills, shipbuilding facilities, port terminals, and wind farms worldwide.

Throughout more than nine decades of operation, the manufacturer has demonstrated outstanding durability in mineral processing machines, marine winches, and generator packages, functioning as an integral part of Regal Rexnord.

Periflex TT highly flexible rubber-fabric couplings for heavy drivetrains

The Periflex TT flexible coupling family is engineered to transmit nominal torque from 35 to 20,500 Nm under intense shock loads and severe angular misalignments.

The elastomeric tyre featuring radial or diagonal fabric plies accommodates radial offsets up to six millimeters and angular misalignments up to four degrees without rotational backlash.

The split-tyre layout allows routine replacement of the elastic member in radial direction without shifting driving motors or coupled gearboxes.

For steel rolling lines and continuous material conveyors, couplings are provided with companion mounting flanges, integrated brake drums, and heavy-duty disc brake adaptors matching site requirements.

Periflex VN plug-in elastomeric disc couplings for marine and diesel drives

For direct shaft connection to internal combustion diesel engine flywheels, Stromag supplies Periflex VN plug-in disc couplings.

These units provide nominal torque ratings from 160 to 63,000 Nm and linear torsional stiffness behavior, enabling accurate mathematical modeling of rotational resonant frequencies while safeguarding diesel crankshafts.

Flange mounting dimensions fully comply with the international SAE J620 standard for flywheel interfaces on marine propulsion engines, pump skids, and electrical generator packages.

Specialized oil-resistant elastomer compounds tolerate fuel vapors and maintain stable elasticity across engine room temperatures reaching up to plus one hundred twenty degrees.

NFF and NFF-LS heavy-duty electromagnetic spring-applied safety brakes

Stromag NFF spring-applied electromagnetic brakes are designed for severe service environments found in marine climates, shipping docks, and steelwork crane bridges.

The brake holds safely via preloaded compression springs during de-energized periods and releases via DC coil excitation, generating dynamic torque from 20 to 10,000 Nm with IP66 sealed protection.

For heavy winch drums, gearless hoist systems, and slewing cranes, multi-face NFF-LS brakes deliver holding torque up to 44,000 Nm.

The assemblies incorporate non-contact proximity sensors to monitor friction lining wear and working air-gap dimensions, transmitting diagnostic signals directly to automated facility process controllers.

Series 51 planetary geared cam limit switches and DZ configurations

Accurate travel limitation and positioning of heavy moving machinery is achieved through Stromag Series 51 geared cam limit switches.

The core mechanism is a patented planetary gear reduction supporting broad ratios from 4.1 to 16,000 driving shaft revolutions, allowing precise contact actuation over long travel paths on crane hoisting drums.

Large sixty-millimeter diameter cam discs feature micrometer adjustment worms, while positive-opening contact blocks comply with international safety standard IEC 60947-5-1 Annex K.

Sealed IP66 housings accommodate integrated absolute optical encoders, rotary feedback potentiometers, position transmitters, and anti-condensation heating elements.

Light Cam Compact limit switches and Stromag replacement components

For compact wire rope hoists, stage equipment, and industrial quarter-turn valves, Stromag provides the Light Cam Compact limit switch family.

Combining worm and spur gear stages with a 74:1 reduction ratio delivers smooth motion and reliable self-locking positioning of profile cam discs at driving shaft velocities reaching up to four hundred revolutions per minute.

To support uninterrupted plant operations, a comprehensive selection of replacement components is maintained, including Periflex replacement tyres, friction linings, magnetic coils, auxiliary contact switches, and bridge rectifiers.

Technical component selection is verified against original machine drawings, part numbers, and manufacturer nameplate data.

Stromag 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 Stromag and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.