Overview
Motovario BA52 25.03:1 bevel gearbox with a 25mm hollow bore output and 90B14 IEC motor input, built for compact right-angle power transmission in smaller industrial machines, conveyor assemblies, and OEM drive systems.
This configuration is a practical choice for compact machinery that needs a larger compact-face motor input while still keeping the overall gearbox assembly neat and space-efficient. It gives machine builders and maintenance teams a reliable way to introduce 90° drive transmission without moving to a bulkier geared solution.
Medium Reduction: At 25.03:1, this version provides balanced speed reduction with a stronger torque increase. That makes it a strong fit for conveyors, packaging machinery, transfer equipment, and compact process systems where a steadier output speed and more substantial drive performance are needed.
The 25mm hollow bore output provides a straightforward shaft-mounted arrangement for smaller driven shafts, helping to simplify installation while maintaining dependable torque transfer in everyday industrial service.
The 90B14 IEC motor input is suited to applications needing a larger B14 flange motor connection, giving broader motor compatibility and a more substantial input-side arrangement for compact machinery builds. As part of the Motovario BA Series platform, it offers a modular and proven gearbox solution for OEM equipment, replacement builds, and general industrial drive duties.
Key Specifications
Regulations: No
Bevel Helical: PAM B
Size: A52
Housing Version: U-Universal
Output Shaft Version: C-Hollow Shaft
Ratio (i): 25,03
Input Dim: Ø140×24 (IEC 90 B14)
Output Shaft Dim: Ø25
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 | ~56 rpm |
| 2-Pole | 2800 | ~112 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 90B14 IEC motor input. Confirm compatibility below:
| Motor Input | IEC Standard | Input Dimensions |
|---|---|---|
| 90B14 | IEC B14 | 24 x 140 |
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 BA52 25.03:1 variant you need with a 25mm bore.
Need a different ratio? Explore the closest BA52 25mm bore ratios to this version.
More BA52 options: Browse all Motovario BA52 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 25.03:1 reduction ratio?
A 25.03:1 ratio is a strong option when machinery needs a balanced output speed together with a more noticeable torque increase. It suits applications that need more speed reduction than low-ratio gearboxes while still avoiding the very slow outputs associated with higher reduction levels.
What applications is this configuration suited to?
This gearbox is well suited to conveyors, packaging machinery, transfer drives, feeders, and OEM equipment where a 25mm hollow bore and 90B14 motor input are required.
Configuration Notes
Input flange note: the 90B14 IEC motor input uses a larger B14 flange arrangement with a 24 x 140 input dimension, making it suitable for applications that need a more substantial compact-face motor connection while still keeping a compact right-angle gearbox format.
Output bore note: the 25mm hollow bore is designed for smaller driven shafts, providing secure shaft engagement and dependable torque transmission in lighter-duty and general industrial applications.
Application example: a good fit for conveyors, compact transfer systems, packaging equipment, and OEM machinery where a right-angle gearbox with balanced output speed and stronger torque gain plus a 90B14 motor input is needed.
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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