Miba Industrial Bearings, Friction Materials and Power Electronics

Miba Group: engineering selection of hydrodynamic journal bearings, crankshaft bushings, friction discs, sintered structural components, and power resistors.

Miba Industrial Bearings and hydrodynamic bearing assemblies

Miba hydrodynamic plain bearings serve heavy rotating machinery worldwide. Integrating tilting pad technologies from Orion, Sartorius, Zollern, and TCE, these assemblies ensure rotor stability across high-speed turbocompressors, high-power generators, and industrial pumps.

Radial tilting pad journal bearings with directed oil lubrication nozzles for rotors
Hydrodynamic thrust bearings with self-equalizing leveling pads for turbo machinery
Combined radial and axial bearing housing assemblies for heavy process compressors
Vertical guide and thrust bearing packages with integrated cooling circuits for pumps

Miba hydrodynamic engine bearings and heavy crankshaft bushings

Miba hydrodynamic engine bearings feature advanced sputtering and electroplated running layers. Engineered for heavy industrial gas engines, marine propulsion units, reciprocating compressors, and wind turbine gearboxes, they withstand severe peak combustion pressures.

Connecting rod and main bearing shells for high-output industrial diesel engines
Sputtered bearing inserts engineered for extreme alternating dynamic loading cycles
Camshaft and small-end wrist pin bushings for heavy industrial reciprocating pumps
Crankshaft thrust washers with precision hydrodynamic lubrication grooves for shafts

Miba Friction Group wet and dry friction discs and brake components

Miba friction components deliver torque transfer and heat absorption across heavy drivelines and braking systems. Sintered bronze, carbon composite, and ceramic discs are built for thermal loads in mining machinery, construction vehicles, tractors, and wind turbines.

Sintered metallic friction discs with precision oil-groove face patterns for clutches
Heavy-duty brake pads and segment friction plates for off-highway mining machines
Carbon friction rings engineered for commercial vehicle transmission synchronizers
Multi-disc industrial brake assemblies designed for wind turbine nacelle rotation

Miba precision powder metal components and sintered gear assemblies

Miba sintered components are manufactured through powder metallurgy compaction and thermal sintering. This technology provides dimensional precision, structural strength, and weight optimization for automotive transmissions, refrigerant compressors, pumps, and e-drives.

High-density sintered gears with optimized tooth profiles for machine gearboxes
Transmission synchronizer hubs and sliding sleeves with long-term wear endurance
Precision valve plates, rotors, and stator rings for hydraulic oil pump systems
Soft magnetic composites for next-generation highly efficient electric drive motors

Miba Power Electronics high-power resistors and cooling solutions

Miba Power Electronics delivers non-inductive thick-film power resistors from EBG and liquid cooling assemblies from DAU. These systems manage voltages and heat dissipation across variable-frequency drives, rail traction inverters, power grids, and high-voltage charging units.

High-power non-inductive thick-film resistors housed in fully insulated envelopes
Precision high-voltage dividers and discharge resistors for energy storage racks
Liquid cold plates and heat sink solutions for high-power semiconductor modules
Inrush current limiters and dynamic braking resistors for industrial motor drives

Miba high-tech coatings and special machinery automation systems

Miba high-tech coatings feature polymer layers and PVD thin films, including the MOTIONCOAT tribological series. In parallel, Miba Automation Systems builds on-site portable milling and weld preparation machinery for wind tower sections and heavy turbine fabrications.

Polymer tribological coatings for bearing surfaces minimizing start-up wear rates
Electroless nickel phosphorus plating for corrosion and erosion surface shielding
Portable orbital milling machinery for thick-wall weld joint beveling operations
Specialized assembly and automated balancing rigs for industrial generator rotors

Selection and Hydrodynamic Sizing Protocol for Miba Industrial Plain Bearings

Engineering sizing of Miba hydrodynamic plain bearings for high-power turbomachinery centers on establishing a stable hydrodynamic lubricant wedge across rated operating and startup speeds.

Bearing pad geometry, radial clearances, and tilting pad arrangements are configured according to oil dynamic viscosity, peak thermal gradients, and journal loads. Individual oil injection nozzles dedicated to each tilting pad eliminate oil starvation during operational transitions.

When replacing legacy assemblies from Orion, Sartorius, Zollern, or TCE, dimensional verification against equipment drawings and confirmation of pressurized oil delivery flow rates guarantee reliable machinery installation.

Crankshaft Bushing Verification and Assembly Guidelines for Heavy Engines

Installing thin-walled Miba crankshaft bushings and connecting rod half-shells requires strict control of joint crush height and bolt tightening torque values within the engine bore envelope.

Improper bearing crush impairs heat transfer into the surrounding housing structure and risks shell spinning or early fatigue flaking of the running layer.

For high dynamic load environments encountered in modern gas engines and marine propulsion units, sputtered bearing shells provide high resistance against cavitation erosion and cyclic mechanical fatigue.

Before fitting replacement shells, technicians measure radial clearance, journal runout, and bore ovality.

Thermal Rating and Friction Pack Design for Heavy-Duty Wet Clutches and Brakes

Engineering multi-plate friction packages with Miba Friction Group involves calculating specific slip energy absorption, heat dissipation capacity, and friction coefficient stability in hot transmission oil.

Sintered bronze friction layers developed by Miba combine high torque holding capability with resistance to thermal degradation during harsh vehicle shifts or emergency braking in off-highway mining haulers.

Specialized groove patterns cut into the friction lining—including radial, waffle, and multi-spiral paths—optimize lubricant flow to sweep thermal energy out of the friction interface. Heavy wind turbine yaw and rotor brakes employ sintered metallic friction pads.

Powder Metallurgy Design Advantages and Material Properties in Miba Sinter

Miba powder metal technology enables high-volume manufacturing of complex structural parts with net-shape precision, reducing material waste and secondary machining operations.

Sintered gears, transmission sprockets, and synchronizer rings deliver long fatigue endurance derived from controlled pore distribution and high sintered density.

For refrigerant compressors and hydraulic pumps, tight dimensional tolerances and surface flatness are secured through precision post-sinter sizing operations.

Utilizing soft magnetic composite powders delivers isotropic magnetic permeability while suppressing eddy current power losses in high-frequency electric machine stators.

Thermal Management and Mounting Rules for Miba Power Electronics Components

Operational reliability of non-inductive power resistors from Miba Resistors (EBG) depends on low thermal resistance from the resistive film to the external heat sink or liquid cold plate.

When mounting high-power thick-film resistors onto DAU liquid cold plates, technicians maintain specified thermal interface material thickness and uniform screw torque to prevent hot-spot formation.

In DC-link precharge circuits and motor inverter snubber loops, Miba resistors withstand high repetitive pulse energy without resistance drift. Corrosion-resistant aluminum liquid cold plates are matched to industrial glycol coolants with minimal flow pressure drop.

Application of MOTIONCOAT Tribological Layers and MAS Mobile Machining Systems

Applying polymer and nanocomposite coatings from Miba Coatings (the MOTIONCOAT family) lowers boundary friction coefficients and shields hydrodynamic bearing surfaces from scuffing during dry startup sequences.

These layers are applied via controlled deposition processes to keep hydrodynamic oil clearances within engineering limits. Concurrently, Miba Automation Systems (MAS) provides on-site mobile machining solutions for heavy wind turbine tower flanges and generator rotor assemblies.

MAS portable orbital milling and boring units deliver flat weld preparation bevels directly at construction yards, streamlining project schedules.

What we do not claim

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