Graessner industrial bevel and hypoid servo gearboxes

Graessner industrial gearboxes: PowerGear spiral bevel, DynaGear dynamic hypoid, EvoGear right-angle, and KS TwinGear precision servo drive series.

Graessner PowerGear Version P spiral bevel gearboxes

Standard right-angle Graessner PowerGear Version P gearboxes engineered with optimized Gleason spiral bevel tooth geometry deliver an elevated efficiency rating of 98 percent. The series spans 12 frame sizes from P54 to P450 with ratios between 1:1 and 5:1 for heavy industrial machinery.

Twelve standardized housing dimensions ranging from P54 to P450 with hollow output
Energy-saving mechanical layout securing verified efficiency levels reaching 98 percent
Optimized spiral bevel gearing ensuring reliable power transmission across assemblies
Flexible flange and foot mounting configurations adapting smoothly to production lines

PowerGear Version X and HS high-torque and high-speed gearboxes

Specialized Graessner bevel gearbox executions: Version X is engineered for heavy output torques up to 5500 Nm across 9 sizes with a 1:1 ratio, while Version HS with balanced internal rotating components handles elevated input speeds reaching up to 8500 rpm across 5 frame sizes.

Nine heavy-duty frame sizes from X54 to X280 with rated torque output reaching 5500 Nm
Five precision HighSpeed dimensions handling continuous motor speeds up to 8500 rpm
Transmission ratios of 1:1 for Version X and 1:1, 1.5:1, 2:1 for high speed assemblies
Reinforced bearing arrangements and auxiliary oil lubrication ports for continuous duty

DynaGear Version D dynamic hypoid right-angle servo gearboxes

High-precision Graessner DynaGear Version D right-angle hypoid gearboxes are developed for dynamic motion profiles in robotic manipulators and machine tools. Single-stage layouts cover ratios from 3:1 to 15:1, while two-stage D-HR units extend to 150:1 with backlash under 2 arcmin.

Single-stage gear ratios from 3:1 to 15:1 and two-stage D-HR versions reaching 150:1
Reduced torsional backlash starting from 2 arcminutes ensuring precision positioning
Uniform external housing dimensions maintained across diverse internal gear ratios
Motor mounting adapter flanges and couplings compatible with standard servo systems

DynaGear Eco cost-effective precision right-angle servo units

The Graessner DynaGear Eco right-angle gearbox family combines the mechanical virtues of hypoid tooth systems with optimized production economics for high-volume automation lines. These units provide lightweight aluminum housings, dependable output torques, and consistent backlash.

Cost-optimized mechanical drive architecture for high-volume automated machinery
Optimized hypoid tooth profiles delivering quiet running and dependable torque transfer
Lightweight aluminum housing construction reducing moving mass on dynamic axes
Hollow and solid shaft output choices featuring standard keyway or shrink disc clamps

EvoGear all-rounder right-angle servo planetary gearboxes

Graessner EvoGear right-angle servo gearboxes combine the strengths of spiral bevel and planetary stages within a compact symmetrical housing layout. The series provides four modular sizes, single-stage ratios from 3:1 to 15:1, and two-stage units up to 100:1 with efficiency up to 96%.

Four standardized frame dimensions offering extensive output shaft arrangements
Symmetrical housing profile facilitating universal installation in tight spaces
Elevated torsional rigidity with multi-stage gear reduction extending up to 100:1
Energy transmission efficiency reaching 96 percent with lifetime lubricant fill

KS TwinGear helical bevel and DesignGear customized gearboxes

Two-stage Graessner KS TwinGear helical bevel gearboxes pair a hypoid bevel stage with a helical spur set, delivering ratios up to 75:1 with high output torque. For unique requirements, the DesignGear line offers labyrinth seals and high-temperature tolerance handling up to 300 °C.

Two-stage hypoid helical gear layout supporting transmission ratios up to 75:1
Elevated torsional stiffness paired with low acoustic noise during rapid cycles
Custom DesignGear engineering with labyrinth seals and temperature limits to 300 C
Hollow through-shaft choices, shrink discs, and versatile input motor lanterns

Industrial heritage and precision gear cutting traditions of Graessner

Established over 65 years ago in Dettenhausen (Baden-Wuerttemberg, Germany), Graessner has built an international reputation for high-precision bevel and hypoid gearing solutions.

As part of Nidec Drive Technology Corporation, the manufacturer combines traditional German engineering standards with automated gear grinding and coordinate measuring technology.

The Dettenhausen manufacturing plant carries out complete production cycles: from mathematical tooth contact pattern analysis to vacuum heat treatment, laser surface roughness monitoring, and full load test benches.

Graessner gear units deliver continuous motion reliability across European and international automated manufacturing installations.

Mechanical efficiency and design advantages of PowerGear assemblies

The PowerGear spiral bevel gearbox family demonstrates peak energy conservation: optimized Gleason spiral bevel tooth geometry and reduced internal fluid friction yield verified efficiency ratings reaching 98 percent.

This minimizes operational power dissipation and thermal buildup within demanding metalworking lines, printing presses, and continuous rolling mills.

PowerGear gearboxes feature rigid box-section ductile iron housings with precision bearing bores and friction-locked shrink connections joining shafts to bevel pinions.

The portfolio spans twelve frame sizes from P54 to P450, offering nominal ratios from 1:1 to 5:1 with output torque capacity handling multiple thousands of newton meters.

Specialized speed and torque executions: PowerGear Version HS and X

To meet the requirements of high-speed cutting machinery, Graessner developed PowerGear Version HS.

Dynamic balancing of all rotating shafts and an aerated housing chamber allow continuous operation at input speeds up to 8500 rpm across five frame sizes, ensuring vibration-free motion on high-speed spindles and cutting gantries.

For severe shock loads, PowerGear Version X transfers torque ratings reaching 5500 Nm across nine standardized dimensions with a 1:1 gear reduction ratio.

Reinforced output shaft bearings absorb substantial radial and axial thrust loads, serving heavy plastic extrusion equipment, stamping presses, and drum winches.

DynaGear dynamic hypoid servo gearboxes for robotic automation

High-precision DynaGear hypoid servo gear units are engineered for dynamic motion profiles involving rapid acceleration and reversal cycles.

Single-stage Version D models cover gear ratios from 3:1 to 15:1, whereas two-stage Version D-HR units extend reduction up to 150:1 while keeping backlash below two arcminutes.

A key advantage of the DynaGear family is the consistency of external housing mounting footprints across all available gear ratios within a given frame size.

This modularity simplifies machine frame standardization, while hollow output shafts permit power wiring, fluid conduits, and sensor cables directly through the center axis.

EvoGear all-rounder servo gearboxes and KS TwinGear multi-stage units

Modular EvoGear right-angle servo drive units unite spiral bevel and planetary gear mechanisms inside a compact symmetrical housing profile.

Four standardized frame dimensions provide reduction ratios up to 100:1 with efficiency reaching 96 percent, while versatile mounting surfaces allow orientation in any spatial plane without lubrication starvation.

For machinery requiring elevated reduction ratios, the two-stage KS TwinGear series integrates a hypoid bevel input stage with a helical spur gear set to attain ratios up to 75:1.

Customized DesignGear special gear units feature non-contact labyrinth seals and high-temperature lubricant fills capable of operating continuously up to 300 C.

Engineering selection, maintenance intervals, and qualified Graessner spare parts

Routine operation of Graessner gearboxes relies upon factory-filled synthetic gear lubricants formulated for the service life of the unit under standard operating temperatures.

For heavy thermal duties, external oil cooling circulation manifolds and temperature sensors can be readily retrofitted to factory ports.

Selecting replacement assemblies or internal gear components requires only the machine nameplate data showing the serial number and gear ratio code.

Our technical engineering team provides kinematic calculations, motor adapter sizing checks, and timely shipment of qualified components with 22 percent VAT.

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