Overview
Motovario BA52 64.87:1 bevel gearbox with a 25mm hollow bore output and 80B5 IEC motor input, engineered for reliable right-angle drive integration in OEM machinery, compact conveyors, and general industrial assemblies.
For applications that need extremely slow-running output together with strong torque multiplication, this configuration offers a tidy and dependable gearbox solution. It gives OEMs and maintenance teams a tidy way to introduce 90° power transmission without moving to an oversized gearbox assembly.
Very High Reduction: At 64.87:1, this version produces very slow output speed together with maximum torque multiplication. That makes it a strong fit for conveyors, transfer equipment, indexing systems, and compact process machinery where highly controlled slow-running performance is required.
The 25mm hollow bore output gives a straightforward shaft-mount arrangement for smaller driven components, helping simplify installation and maintain reliable torque transfer.
The 80B5 IEC motor input is suited to applications needing a larger B5 flange motor connection, giving broader motor compatibility and a more substantial input-side arrangement for compact machinery builds. 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): 64,87
Input Dim: Ø200×19 (IEC 80 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 | ~22 rpm |
| 2-Pole | 2800 | ~43 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 80B5 IEC motor input. Confirm compatibility below:
| Motor Input | IEC Standard | Input Dimensions |
|---|---|---|
| 80B5 | 80 B5 | 19 x 200 |
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 64.87:1 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 64.87:1 reduction ratio?
A 64.87:1 ratio is a strong option when equipment needs very slow output speed together with maximum torque multiplication. It suits machinery that benefits from substantial speed reduction while keeping drive performance controlled and dependable.
What applications is this configuration suited to?
A good choice for conveyors, automation machinery, OEM assemblies, and compact drive systems where a 25mm hollow bore and 80B5 motor input match the application requirement.
Configuration Notes
Input flange note: the 80B5 IEC motor input uses a 19 x 200 mounting dimension and a larger B5 flange arrangement, 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: a practical solution for processing equipment, conveyors, and compact OEM machinery needing maximum speed reduction together with a 80B5 motor input.
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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