Overview
Motovario BA52 41.97:1 bevel gearbox with a 25mm hollow bore output and 71B5 IEC motor input, designed for efficient 90° power transmission in compact machinery, automated equipment, and smaller industrial drive systems.
It gives machine builders and maintenance teams a dependable way to add slower output speed and stronger torque transfer without moving to a bulkier geared solution. It gives OEMs and maintenance teams a tidy way to introduce 90° power transmission without moving to an oversized gearbox assembly.
High Reduction: At 41.97:1, this version delivers significant speed reduction together with stronger torque multiplication. That makes it a strong fit for conveyors, packaging machinery, transfer equipment, and compact process systems where a slower, more controlled output speed is needed.
The 25mm hollow bore output gives a straightforward shaft-mount arrangement for smaller driven components, helping simplify installation and maintain reliable torque transfer.
The 71B5 IEC motor input is a practical choice where a compact B5 motor connection is required for smaller conveyors, transfer drives, and OEM equipment. 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: A52
Housing Version: U-Universal
Output Shaft Version: C-Hollow Shaft
Ratio (i): 41,97
Input Dim: Ø160×14 (IEC 71 B5)
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 | ~33 rpm |
| 2-Pole | 2800 | ~67 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 71B5 IEC motor input. Confirm compatibility below:
| Motor Input | IEC Standard | Input Dimensions |
|---|---|---|
| 71B5 | 71 B5 | 14 x 160 |
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 41.97:1 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 41.97:1 reduction ratio?
A 41.97:1 ratio is a strong option when equipment needs significant speed reduction together with a useful increase in torque. It suits machinery that benefits from slower, more controlled output speed without stepping into the very highest reduction range.
What applications is this configuration suited to?
It is well suited to packaging systems, transfer equipment, small process lines, and general industrial machinery that need a 25mm hollow bore together with a 71B5 motor input.
Configuration Notes
Input flange note: the 71B5 IEC motor input uses a larger B5 flange arrangement with a 14 x 160 input dimension, making it suitable for applications that need a dependable 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: ideal for packaging machinery, transfer drives, and automation equipment where controlled slower speed and a 71B5 motor input are part of the drive specification.
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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