Purchase now: Bonfiglioli F 10 2 H 40 P71 B5 Gearbox
Purchase now: Atlantechdrives provides you the F 10 2 H 40 P71 B5, a premium, high-efficiency parallel shaft helical gear reducer from Bonfiglioli’s globally recognized F Series. Designed for sophisticated industrial applications where mounting space is severely restricted but maximum mechanical efficiency is mandatory, the F Series offers a remarkably slim, flat profile. It is engineered to mount directly onto the driven machine’s solid shaft, allowing the electric motor to sit parallel to the machine chassis. Unlike traditional worm gears that lose substantial electrical power to sliding friction, the parallel helical gears transfer rotational power with almost zero friction, resulting in efficiencies frequently exceeding 95%. This model features a 2-stage reduction achieving a precise 40:1 ratio for excellent torque multiplication, a Hollow output shaft (H) with a standard keyway, and an input flange designed for a standard IEC P71 electric motor with a B5 flange. It is the absolute optimal power transmission choice for shaft-mounted material augers, heavy-duty belt conveyors, and tight space continuous mixers.
Technical Specifications of the F 10 2 H 40 P71 B5
The F 10 utilizes a highly rigid unibody housing that maintains perfect internal gear alignment under heavy radial and axial shock loads. The helical gears are case-hardened and precision-ground for silent, continuous 24/7 operation.
- Part Number: F 10 2 H 40 P71 B5
- Gearbox Series: F (Parallel Shaft Helical Reducer)
- Frame Size: 10 (Compact flat profile construction)
- Number of Stages: 2 (Dual reduction gearing)
- Output Configuration: H (Hollow shaft with standard keyway)
- Reduction Ratio (i): 40:1 (High torque multiplication)
- Motor Interface: IEC P71 frame
- Motor Flange Type: B5 (Large standard mounting flange)
Expert Installation Advice: The Crucial Torque Arm
Shaft-mounting a gearbox introduces unique mechanical dynamics that must be managed correctly. Expert Tip: Because the F 10 mounts directly onto the solid shaft of your driven machine via its hollow bore, the entire gearbox housing will attempt to spin around that shaft with immense force when the electric motor turns on. To prevent this, you must install a torque arm (reaction arm) connecting the gearbox housing to a fixed point on the machine frame. Never bolt the torque arm completely rigid; you must use rubber vibration-dampening bushings at the anchor point. If you bolt the gearbox rigidly to the frame while it is suspended on the machine shaft, any minor runout or shaft bending during operation will destroy the gearbox’s internal bearings within a matter of weeks.
Maintenance: Preventing Hollow Shaft Fretting Corrosion
One of the most common and costly maintenance nightmares in industrial automation involves hollow shaft gearboxes getting permanently stuck to the machine shaft. This is caused by «fretting corrosion»—microscopic vibrations that cause the steel surfaces to rust and cold-weld together over time. Before sliding the F 10 gearbox onto your machine shaft, you must thoroughly clean the shaft and apply a heavy coating of high-quality anti-seize paste (such as Molybdenum Disulfide) inside the hollow bore and along the keyway. This simple 5-minute step guarantees the gearbox can be easily removed for maintenance years down the line without the need for destructive hydraulic presses.
Frequently Asked Questions (FAQs)
Q: Why choose a parallel shaft (F Series) over an inline helical (C Series)?
A: Parallel shaft gearboxes have a flat, narrow profile, allowing the electric motor to sit parallel to the driven machine. This saves significant axial space, making it ideal for tight conveyor sides where a long inline motor would stick out too far and block factory walkways.
Q: Is the F 10 suitable for reversing applications?
A: Yes. High-quality helical gears are completely symmetrical and highly efficient in both rotational directions, making them perfect for reversible conveyor applications or oscillating machinery without suffering from excessive backlash.
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