Overview
Motovario BA42 16.47:1 bevel gearbox with a 20mm hollow bore output and 71B14 IEC motor input, configured for compact right-angle power transmission in smaller industrial and OEM drive assemblies.
This version is well suited to face-mounted machine builds, compact transfer units, and neatly packaged automation modules. The compact housing helps keep the drive train neat while still giving dependable mechanical performance in day-to-day industrial service.
Low Reduction: At 16.47:1, this configuration sits at the upper end of the low-reduction group, giving more torque multiplication while preserving practical output speed. In practical terms, that makes it better suited to applications that need a little more pull, such as loaded conveyors, transfer systems, and harder-working OEM assemblies.
The 20mm hollow bore output gives a straightforward shaft-mount arrangement for smaller driven components, helping simplify installation and maintain reliable torque transfer.
The 71B14 IEC motor input makes this version particularly suitable where a face-mounted motor arrangement is preferred for compact machine design and easy integration. Being part of the Motovario BA Series platform, it offers a proven modular solution for smaller industrial machines and replacement drive builds.
Key Specifications
Regulations: No
Bevel Helical: PAM B
Size: A42
Housing Version: U-Universal
Output Shaft Version: C-Hollow Shaft
Ratio (i): 16,47
Input Dim: Ø105×14 (IEC 71 B14)
Output Shaft Dim: Ø20
Rotation Direction: Standard
ON-Oil Plugs: No Plugs (Standard)
Mounting Position: U
ON-Output Oil Seal: NBR-Nitrile
ON-Input Oil Seal: NBR-Nitrile
ON-Output Bearings: Ball Bearings
ON-Lubrication: Mineral SAE 85W-140
Paint: Ral 5010 Blue
Output Speed (4-Pole vs 2-Pole Motors)
Calculated nominal output speed using a standard IEC motor:
| Motor Type | Input Speed (rpm) | Estimated Output Speed (rpm) |
|---|---|---|
| 4-Pole | 1400 | ~85 rpm |
| 2-Pole | 2800 | ~170 rpm |
Need torque confirmation? Output torque depends on motor power, gearbox efficiency, and service factor. Use our calculator tools or contact us for confirmed application data.
Motor Input Chart (IEC Flange Details)
This gearbox is supplied with a 71B14 IEC motor input. Confirm compatibility below:
| Motor Input | IEC Standard | Input Dimensions |
|---|---|---|
| 71B14 | IEC B14 | Ø105 x 14 |
If you’re unsure whether your motor is B5 or B14, contact our technical team for compatibility confirmation.
Internal Links & Compatible Options
Same ratio, different motor input: jump to the BA42 16.47:1 variant you need with a 20mm bore.
Need a different ratio? Explore the closest BA42 20mm bore ratios to this version.
More BA42 options: Browse all Motovario BA42 gearbox ratios
Explore the full BA Series range: Motovario BA Series bevel gearboxes
Helpful calculators:
Gearbox Ratio & Speed Calculator |
Output Torque Calculator
FAQ
Why choose a 16.47:1 reduction ratio?
This ratio is commonly selected for machinery that still needs fairly quick output rotation but also benefits from extra torque compared with direct drive. It is a good fit where the aim is to moderate speed rather than heavily reduce it.
Why choose the 71B14 motor input version?
The 71B14 input is useful where a smaller face-mounted motor connection is needed for a compact build. It helps suit tighter machine layouts and can be a better choice for equipment where installation footprint matters.
Configuration Notes
Input flange note: the 71B14 IEC motor input is intended for smaller motor frames using a compact face-mount arrangement, helping simplify integration into machinery with limited mounting space.
Output bore note: the 20mm hollow bore is suited to smaller driven shafts, giving secure shaft engagement and reliable transmission for compact drive systems.
Application example: suitable for small conveyors, product handling equipment, packaging machinery, and OEM automation assemblies where a compact right-angle gearbox is needed to combine efficient speed reduction with a space-saving motor connection.
Need help selecting the correct ratio, bore size, or motor input?
Contact our gearbox specialists for sizing assistance, torque verification, and availability confirmation.
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