Overview
Motovario BA52 64.87:1 bevel gearbox with a 25mm hollow bore output and 63B5 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 where the priority is maximum torque gain and highly controlled slow-speed operation without moving to a bulkier gearbox assembly. 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 63B5 IEC motor input is best suited to smaller motor frame pairings where the priority is a neat, compact drive package for lighter-duty 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): 64,87
Input Dim: Ø140×11 (IEC 63 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 63B5 IEC motor input. Confirm compatibility below:
| Motor Input | IEC Standard | Input Dimensions |
|---|---|---|
| 63B5 | 63 B5 | 11 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 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?
This configuration works well on conveyors, material handling systems, compact process machinery, and automation equipment where a 25mm hollow bore and 63B5 motor input are needed.
Configuration Notes
Input flange note: the 63B5 IEC motor input uses a 11 x 140 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: well suited to conveyors, handling systems, and industrial machinery where minimum output speed, dependable torque transfer, and a 63B5 motor input are required.
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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