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Equipment and spare partsBrowse manufacturers Search by manufacturerFounded in 1938 in Japan, Ogura Clutch Co., Ltd. is the global market leader in electromagnetic clutches, industrial fail-safe brakes, and precision tension control systems. We supply genuine Ogura MIC micro-clutches, AMC industrial units, MWC multi-disc assemblies, RNB safety brakes, and TX Roots blowers worldwide.
Ogura subminiature electromagnetic micro-clutches (MIC series) and matching brakes (MIB series) are engineered for precision motion control, rapid cycling, and indexing in compact automation equipment. The backlash-free armature spring mechanism ensures millisecond-fast release with zero drag torque when the electromagnet is de-energized, supporting versatile shaft and pulley mountings.
Industrial dry-friction single-plate electromagnetic clutches (AMC) and matching brakes (AMB) represent the industry benchmark for heavy cyclic operations. Featuring enlarged friction surfaces, optimized thermal dissipation, and automatic wear take-up, these units withstand aggressive start-stop duty cycles without thermal fade or slippage.
Multi-disc electromagnetic clutches (MWC) and brakes (MWB) are designed for transmitting immense torque densities within extremely compact radial dimensions. The hardened multi-disc friction pack operates seamlessly in wet oil-bath gearbox environments or dry industrial drivetrains across machine tools and power turbine assemblies.
Spring-applied power-off safety brakes (RNB and MCNB series) operate on the fundamental fail-safe principle: when electrical power is removed or interrupted, calibrated springs clamp the friction disc to hold loads securely. Energizing the DC coil attracts the armature against spring tension, allowing frictionless rotation.
Magnetic particle clutches (OPC) and brakes (OPB) utilize spherical alloyed ferromagnetic powder to transfer torque across continuous slip differentials. Transmitted torque is strictly linear relative to coil excitation current, delivering smooth, ripple-free web tension control across unwinding and rewinding lines.
PHT series non-contact hysteresis brakes generate smooth, invariant holding torque purely via magnetic hysteresis realignment inside a multi-pole permanent magnet field. Operating torque remains completely independent of rotational speed from zero to 10,000 RPM, while the friction-free design prevents particulate contamination.
Electromagnetic tooth clutches (MZ, MZA, and MZE series) deliver positive mechanical locking and massive torque transmission through precision-machined end-face teeth. Energizing the coil pulls the tooth ring into rigid positive lockup with zero slippage, ideal for indexing and heavy industrial equipment.
Ogura mobile electromagnetic clutches (MA, MS, and PTO series) provide reliable on-demand power coupling for automotive air conditioning compressors, hydraulic auxiliary pumps, and PTO shafts on mobile machinery. Hermetically sealed bearings and electrophoretic coating protect against dust, road spray, and vibrations.
Ogura TX series Roots blowers (TX04, TX12, TX15, TX20) supply clean, pulsation-free air and gas delivery. Precision-machined helical rotors coated with advanced fluoropolymer operate with non-contact micro-clearances, eliminating oil lubrication in the compression chamber for 100% oil-free clean air.
All Ogura Clutch Co., Ltd. products are manufactured under rigorous ISO 9001 and automotive IATF 16949 quality management systems. Every clutch and brake unit undergoes thorough end-of-line verification for torque transmission, insulation resistance, and dimensional runout prior to global dispatch.
Our applications team calculates precise static and dynamic torque ratings, thermal dissipation limits, and cycling frequency requirements. We assist in selecting the ideal Ogura clutch or brake configuration matching your exact shaft diameters, coil voltages, and environmental conditions, as well as finding direct replacements for discontinued series.
We engineer and deliver turnkey Ogura electromagnetic clutch and brake solutions for leading global manufacturers of CNC machine tools, industrial turbines, printing presses, and automated assembly systems, ensuring flawless kinematic compatibility and extended service lifetimes.
All Ogura manufacturing facilities are fully certified according to ISO 9001 and automotive IATF 16949 benchmarks. Every unit undergoes rigorous spin testing, insulation dielectric checks, and dynamic load testing prior to factory dispatch.
To guarantee uninterrupted machine productivity, we supply genuine OEM spare parts and consumable components for Ogura assemblies: replacement friction discs, armature return springs, electromagnetic field coils, brush holder contacts, and specialized mounting hardware.
All genuine Ogura industrial products are supplied directly from manufacturer production hubs in original heavy-duty protective packaging with full factory documentation and quality inspection records, backed by reliable global logistics, complete export compliance, and swift customs handling.
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