Overview
Motovario BA42 12.95:1 bevel gearbox with a 20mm hollow bore output and 63B5 IEC motor input, specified for smaller drive trains that need dependable right-angle transmission and straightforward motor integration.
This version is well suited to compact OEM drives, lighter conveyors, and smaller machine assemblies. It gives OEMs and maintenance teams a tidy way to introduce 90° power transmission without moving to an oversized gearbox assembly.
Low Reduction: At 12.95:1, this configuration still sits in the faster end of the low-reduction range, giving a sensible balance between speed retention and extra turning force. In practical terms, that makes it works well on shorter conveyors, feeders, compact packaging equipment, and small automation modules.
Its 20mm hollow bore output suits smaller driven shafts and supports tidy mechanical integration in space-conscious machine layouts.
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: A42
Housing Version: U-Universal
Output Shaft Version: C-Hollow Shaft
Ratio (i): 12,95
Input Dim: Ø140×11 (IEC 63 B5)
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 | ~108 rpm |
| 2-Pole | 2800 | ~216 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 | IEC 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 BA42 12.95:1 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 12.95:1 reduction ratio?
A 12.95:1 ratio is ideal where machinery needs a relatively fast output speed together with moderate torque increase. It suits equipment that benefits from controlled speed reduction without moving into medium or high reduction territory.
What applications is this configuration suited to?
This gearbox is a strong fit for compact conveyors, light-duty processing systems, packaging equipment, transfer drives, and OEM machinery where a 20mm hollow bore and 63B5 motor input are required.
Configuration Notes
Input flange note: the 63B5 IEC motor input is designed for smaller motor frame sizes, making this gearbox suitable for compact drive assemblies where space efficiency and simple motor matching are important.
Output bore note: the 20mm hollow bore is intended for smaller driven shafts, providing secure shaft engagement and dependable torque transfer in lighter-duty and general industrial applications.
Application example: well suited to smaller conveyors, transfer mechanisms, packaging systems, and automation equipment where a compact right-angle gearbox with relatively high output speed 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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