Purchase now: Bonfiglioli A 10 2 NH 30 P80 B5 Gearbox
Purchase now: Atlantechdrives provides you the A 10 2 NH 30 P80 B5, an ultra-compact, high-efficiency orthogonal (right-angle) helical-bevel gear reducer engineered by the transmission experts at Bonfiglioli. Belonging to the elite A Series, this gearbox delivers unmatched mechanical efficiency and rugged durability for precision industrial automation. Recognizing the industry trend toward miniaturization, Bonfiglioli designed the «10» frame size to bring helical-bevel efficiency to applications traditionally dominated by small, energy-wasting worm gears. Unlike worm gears, the helical-bevel architecture transfers over 95% of your electric motor’s power directly to the output. This specific model features a 2-stage reduction resulting in a versatile 30:1 ratio. Designed to accept an IEC P80 motor via a B5 flange, its standout feature is the «NH» (Hollow shaft with Shrink Disc) output configuration, which provides a superior, 100% backlash-free connection to your driven machine.
Technical Specifications of the A 10 2 NH 30 P80 B5
The A 10 series features a highly rigid, unibody housing designed to withstand extreme radial and axial shock loads without compromising the delicate internal gear alignment. The gears are case-hardened and ground for silent operation.
- Part Number: A 10 2 NH 30 P80 B5
- Gearbox Series: A (Orthogonal Helical-Bevel Reducer)
- Frame Size: 10 (Ultra-compact design)
- Number of Stages: 2 (Dual reduction gearing)
- Reduction Ratio (i): 30:1
- Output Configuration: NH (Hollow shaft with keyless Shrink Disc)
- Motor Interface: IEC P80 frame
- Motor Flange Type: B5 (Large standard mounting flange)
Expert Installation Advice: Shrink Disc Dynamics
The NH shrink disc output is a massive engineering advantage, but only if installed with absolute precision. Expert Tip: A shrink disc provides a 360-degree, keyless frictional clamping force that eliminates the mechanical backlash and fretting corrosion associated with standard keyed shafts. However, the golden rule of shrink disc installation is strict friction management. You must absolutely never lubricate, grease, or apply anti-seize paste to the bore of the gearbox or the surface of the driven machine shaft where the clamping force is applied. If oil is present on the clamping surfaces, the coefficient of friction drops to zero, and the machine shaft will slip violently inside the gearbox under load, destroying both components. Clean the mating shafts with a heavy-duty degreaser before tightening the shrink disc bolts evenly with a calibrated torque wrench.
Maintenance and Torque Arm Anchoring
Because the A 10 is a shaft-mounted gearbox (sliding directly onto the driven shaft via the shrink disc), the entire gearbox housing will attempt to spin around that shaft when the electric motor turns on. You must anchor the gearbox to the machine frame using a torque arm (reaction arm). Maintenance Warning: Never bolt a torque arm completely rigid to the machine frame. You must use rubber vibration-dampening bushings at the anchor point. If the gearbox is bolted rigidly, any minor runout, shaft bending, or misalignment during operation will transfer immense radial stress directly into the gearbox housing, shattering the internal bearings within weeks.
Frequently Asked Questions (FAQs)
Q: Is a 30:1 helical-bevel gearbox self-locking?
A: Absolutely not. Helical-bevel gears are highly efficient and completely reversible. A 30:1 ratio will be easily back-driven by any load when the electric motor is turned off. If your application involves holding a suspended load, you must install an external failsafe motor brake.
Q: Why choose the A 10 instead of a standard worm gear?
A: The A 10 Helical-Bevel runs significantly cooler, consumes far less electrical power, and offers a much longer operational lifespan because it avoids the sliding friction wear inherent to worm gears. It is the premium choice for 24/7 continuous duty cycles.
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