Regal Rexnord
Parallel Shaft Gearboxes
Regal Rexnord parallel shaft gearboxes are helical - geared speed reducers in which the input and output shafts are offset and parallel to each other — an architecture that provides the high - efficiency, high - torque capacity, and configuration flexibility required by belt conveyors, bucket elevators, apron feeders, and other heavy industrial drives where the motor is positioned adjacent to the driven shaft.Under the Falk, Browning, and Grove Gear brands, our parallel shaft gearbox line encompasses the legendary Falk A - Plus and V - Class designs that have defined drivetrain reliability in aggregate processing, mining, power generation, and bulk - material handling for decades.These gearboxes transmit power through precision helical gearing with an offset between the high - speed input shaft and the low - speed output shaft, allowing the motor to be mounted beside the gearbox on a NEMA or IEC C - face register, flanged motor, or coupled arrangement — providing the drivetrain layout flexibility essential when headroom or axial space is limited.Reliability engineers specify Regal Rexnord parallel shaft gearboxes for their proven ability to survive the shock loads, 24 / 7 operation, and contaminated environments of heavy bulk - material handling, while the Falk V - Class with its integrally cast housing provides the thermal management and structural rigidity for the highest horsepower ratings.
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Trusted by Industry Leaders
Proven Falk A - Plus & V - Class Reliability
Decades of documented performance on the world’s most demanding conveyor, elevator, and feeder drives — the standard of reliability in mining, cement, and aggregate operations.
High Efficiency Across All Ratios
Dual and triple - reduction helical gearing with profile - ground tooth flanks achieves 96 % to 98 % efficiency — significantly lower heat generation and energy cost than worm - gear alternatives in continuous operation.
Flexible Motor Adaptation
C - face NEMA or IEC motor input flanges, scoop - mount configurations for foot - mounted motors, and coupled motor arrangements — providing the optimal motor - attachment method for the specific installation.
Heavy - Duty Housings & Bearing Systems
Cast - iron and fabricated - steel housings with integrally cast bearing supports that maintain gear alignment under the high overhung loads produced by conveyor and elevator drives.
Accessories for Conveyor - Specific Functions
Integral backstops to prevent loaded - conveyor run - back, cooling fans and coils for thermal management, and shaft - driven oil pumps for forced lubrication at low speeds.
Wide Ratio & Torque Range
Reduction ratios from 1.25: 1 to over 500: 1, torque capacities to over 5,000,000 lb -in, covering the requirements of all standard industrial conveyor and bulk - handling systems.
Falk Parallel Shaft Gearboxes in Mining & Aggregate Conveyor Drives
In aggregate and mining operations, the parallel shaft gearbox on a belt conveyor head pulley or a bucket elevator head shaft often represents the single most critical mechanical component in the production process — if the gearbox fails, the entire material flow stops.Falk V - Class parallel shaft gearboxes have earned their position as the industry benchmark in these applications.Their integrally cast housing provides the structural stiffness that maintains gear alignment under the high separating forces of helical gearing and the deflections induced by multi - million - lb -in torque.Through - hardened and case -carburized gearing, oversized bearing spans, and multi - labyrinth seals work together to deliver the 30 - to 50 - year service life that mining operators expect from a Falk gearbox.When a Falk gearbox ultimately requires a rebuild after decades of service, Regal Rexnord’s global service network provides factory - remanufactured gearboxes and on - site service that restores them to original performance — often more quickly and cost - effectively than a replacement from a non - OEM source.
Parallel Shaft vs.Shaft Mount Gearboxes: Layout & Service Considerations
Both parallel shaft and shaft mount gearboxes provide the offset input - output shaft relationship required for conveyor drives, but each offers distinct advantages.Parallel shaft gearboxes typically provide higher efficiency, are more readily adapted to dual - input high - horsepower configurations, and allow the motor to be base - mounted independently of the gearbox, simplifying motor replacement.Shaft mount gearboxes mount directly onto the driven shaft and are anchored by a torque arm, eliminating couplings, baseplates, and alignment procedures — reducing installation time and drivetrain footprint.For heavy, high - horsepower drives where reliability and efficiency are paramount, parallel shaft designs are generally preferred.For lighter, remote, or difficult - to - access drives where installation simplicity and compactness matter most, shaft mount designs excel.Regal Rexnord’s dual - technology portfolio allows the application to determine the gearbox architecture, not the manufacturer’s product limitations.