Regal Rexnord
Gearmotors
Regal Rexnord gearmotors are integrated drive packages that combine a precision - mated AC or DC electric motor with a speed - reducing gearbox in a single, compact, pre - engineered assembly — delivering the exact output speed and torque required by the driven machine without the complexity, alignment, and space requirements of separate motor - and - reducer component builds.Under the Hub City, Grove Gear, LEESON, and Marathon brands, our gearmotor portfolio spans helical, helical - bevel, worm, and planetary gear configurations, motor types from fractional - horsepower single - phase AC to high - torque three - phase and DC, and mounting options that cover foot, flange, and shaft - mount requirements.Machine designers, conveyor OEMs, and plant maintenance teams specify Regal Rexnord gearmotors when they need a single - part - number solution that simplifies procurement, reduces assembly labor, and eliminates the motor - coupling - reducer alignment that causes vibration, wear, and reliability problems in component - built drive trains.With standardized NEMA and IEC motor interfaces, factory - filled synthetic lubrication, and output speeds from 0.1 to over 500 RPM, our gearmotor line provides the ready - to - install drive solution that accelerates machine build and minimizes total installed drive cost.
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Trusted by Industry Leaders
Integrated Motor - Gearbox Design Simplifies Procurement
One part number replaces three(motor, coupling, reducer), reducing purchasing transactions, eliminating compatibility risk, and providing single - source warranty accountability.
Factory - Aligned, Vibration - Tested Assembly
Every gearmotor is assembled and tested in a controlled factory environment, ensuring precise motor - gearbox alignment that minimizes vibration, extends bearing life, and reduces noise.
Compact Footprint Saves Machine Space
Integrated construction eliminates the coupling guard and the space needed for alignment access, reducing the drive footprint by up to 40 % compared to component - built arrangements.
Pre - Filled with Application - Matched Lubricant
Factory - filled with synthetic or mineral lubricant selected for the gearmotor’s mounting orientation and operating environment — no field lubrication, no over / under - fill errors, ready to run out of the box.
Helical, Worm & Planetary Configurations Available
Choose helical for efficiency, worm for right - angle compactness and self - locking capability, and planetary for high torque density in precision motion applications.
AC & DC Motor Options for Speed - Control Flexibility
Three - phase AC for fixed - speed or VFD applications, single - phase AC where three - phase power is unavailable, and DC for battery - powered or simple speed - control requirements.
Gearmotor vs.Separate Motor & Reducer: Total Cost of Ownership Comparison
While separate motor and reducer components may appear less expensive on a purchased - cost basis, the total installed and lifecycle cost of a gearmotor is often lower.Component - built drives require a coupling, coupling guard, baseplate, field alignment, and separate procurement transactions — costs that frequently exceed the gearmotor’s marginal price premium.Field alignment of motor to reducer is the most common source of drive - related vibration and premature bearing failure in industrial equipment; gearmotors eliminate this variable entirely.For OEM machine builders producing multiple units, the labor savings from installing a single gearmotor versus three separate components can reduce assembly time by hours per machine, improving throughput and profitability.For plant maintenance teams, a spare gearmotor can be swapped in a fraction of the time required to replace and realign a separate motor and reducer, reducing mean time to repair and getting production back online faster.
Gearmotor Selection Guide: Matching the Drive to the Duty Cycle
Proper gearmotor selection starts with the driven - machine torque and speed requirements, but must also account for the duty cycle, ambient conditions, and mounting orientation that determine bearing life and lubrication effectiveness.Regal Rexnord application engineers evaluate the starting torque(breakaway), running torque, and any transient overloads the gearmotor will experience, selecting the gear configuration, service factor, and motor horsepower to deliver reliable operation within the design life.For applications with high radial overhung loads — belt - driven conveyors, chain sprockets — output bearing sizing is critical.For vertical mounting or inclined orientations, lubrication retention and seal arrangements must be reviewed.Our selection tools and application - engineering support manage these variables, generating a recommended gearmotor part number with supporting life calculations, CAD models, and wiring diagrams that ensure the gearmotor performs as expected from installation through years of service.