Riduttore cicloidale serie EP-BLE XLE a doppio stadio con flangia verticale

High-torque, low-backlash cycloidal speed reducer engineered for demanding industrial vertical-drive applications.

2. Five Quick Facts You Need to Know

• Double-stage planetary cycloidal design delivers reduction ratios from 121 to 5,133, far beyond typical single-stage units.
• Vertical flange-mounted configuration (XLD / BLY) saves floor space and integrates directly with motor flanges — no coupling adapter needed.
• Rolling contact on all meshing surfaces eliminates sliding friction, sustaining first-stage efficiency of up to 94% even under heavy load.
• Simultaneous multi-tooth engagement (high contact ratio) dramatically reduces vibration and operating noise across all speed ranges.
• Input and output shafts share a common central axis, keeping the overall footprint over one-third smaller than equivalent worm or spur-gear units.

3. How the Cycloidal Gearbox Works?

At the heart of every cycloidal drive gearbox is a 180°-offset double eccentric sleeve mounted on the input shaft. Two rocker-arm roller bearings are seated on the eccentric sleeve, forming an H-shaped sub-assembly. A pair of cycloidal discs is eccentrically mounted on these bearings so that, as the input shaft rotates, each disc traces a hypocycloidal path inside the pin-gear ring. The tooth profile of the cycloidal disc is calculated so that it is always in full-face rolling contact with the pin gear rather than sliding contact — this is the fundamental reason cycloidal reducers outlast worm drives in continuous-duty applications.

Speed reduction in the first stage comes from the tooth-count difference between the cycloidal disc and the pin ring — typically one fewer tooth on the disc than pins in the ring. The resulting output is carried through a set of output pins that pass through holes in the cycloidal disc, converting the eccentric orbital motion into pure rotation. In the EP-BLE XLE double-stage variant, a second equivalent assembly is driven by the first-stage output shaft, compounding the ratio to values between 121:1 and 5,133:1 while preserving the smooth, shock-absorbing output quality of the single-stage unit.

Because all meshing surfaces roll rather than slide, friction losses are minimal and the unit sustains first-stage efficiency around 94%. The double-stage overall efficiency is somewhat lower due to two power-transmission stages, yet remains substantially better than a comparable two-stage worm gearbox under the same load conditions. The balancing of the two cycloidal discs against each other almost completely eliminates the dynamic imbalance forces that create vibration and noise in single-disc designs.

4. Five Key Product Advantages Of Cycloidal Gearbox

5. Material & Construction

The long operational life of an industrial cycloidal gearbox depends directly on the materials chosen for each sub-assembly. Every component in the EP-BLE XLE series is specified to perform under continuous industrial-grade loading.

Surface roughness on all shaft mating diameters is held to Ra ≤ 0.8 μm. Shaft diameter ovality and taper are maintained within 0.015–0.025 mm of true round — deviations up to 0.02 mm are acceptable for continued service; anything beyond 0.02 mm triggers a refurbishment cycle to prevent accelerated bearing wear.

6. Scenari applicativi

The EP-BLE XLE cycloidal gearbox double stage vertical flange-mounted configuration is purpose-designed for applications demanding a vertical output axis, high torque, and reliable continuous-duty operation. The following scenarios represent the most common deployment environments.

7. Regulatory Compliance & Industry Standards

Mechanical power-transmission equipment is subject to a range of safety, environmental, and quality regulations across export markets. The EP-BLE XLE cycloidal gearbox is designed and manufactured to align with the following frameworks:

It remains the responsibility of the OEM integrator or end-user to confirm that the complete machine installation meets all locally applicable regulations. Our engineering team can supply documentation packages — including material certificates (EN 10204 3.1), gear-accuracy measurement reports, and third-party test certificates from SGS, TÜV, or BV — on request.

8. Maintenance & Daily Inspection Guide

A systematic inspection routine protects against unplanned downtime. The three critical areas to monitor on any riduttore cicloidale are bearings, the cycloidal disc-and-pin contact surfaces, and the output shaft.

Bearing Inspection

Clean the target bearing with heated mineral oil until the inner race turns freely by hand in all radial directions without binding. Once clean, use a feeler gauge to measure running clearance. Any binding, roughness on rotation, or clearance outside the manufacturer's table is cause for replacement before the unit re-enters service. Preemptive bearing changes are far less expensive than emergency repairs following a catastrophic seizure.

Cycloidal Disc & Pin Inspection

The disc profiles must be free of chipping, cracking, or spalling — any of these defects on a tooth surface constitutes a mandatory stop-and-replace condition. Unlike spur gears where a single chipped tooth might continue to function for some time, a damaged cycloidal disc rapidly propagates wear to adjacent pin contacts and can cause debris contamination of the entire lubricant charge.

Shaft Inspection

Measure shaft diameter ovality and taper at multiple cross-sections. Values within 0.015–0.025 mm of nominal are acceptable for continued operation. A deviation of up to 0.02 mm is within re-use tolerance; anything beyond 0.02 mm requires a refurbishment cycle (re-grinding or shaft replacement). Shaft key-slot widths should be within 0.04 mm of the limit size; shafts exceeding this tolerance must be replaced immediately to prevent key-and-slot fretting that accelerates wear progression.

9. Chi siamo

We are a dedicated manufacturer of precision cycloidal gearboxes, operating a purpose-built production facility equipped with CNC gear-grinding centres, coordinate-measuring machines (CMM), spectral analysers, and dedicated hardness-testing stations. Our engineering team — composed of mechanical engineers with specialisations in gear geometry, tribology, and fatigue design — oversees every stage from initial drawing review through final dimensional and performance validation.

The cycloidal gearbox supplier capabilities in our facility cover the complete BLE and XLE cycloidal gearbox series in standard and custom configurations, including non-standard reduction ratios, special shaft diameters, extended temperature ratings, and food-grade or explosive-atmosphere (ATEX) compliant variants.

Workshop

10. Related Products & Compatible Components

A complete drivetrain solution goes beyond the gearbox itself. We supply a full range of compatible power-transmission components engineered to work seamlessly with our cycloidal gearbox series — giving you the convenience of a single-source supplier for the entire drive system.

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