Motovario BA42 7.62:1 Bevel Gearbox – 20mm Bore, 80B5

Overview

Motovario BA42 7.62:1 bevel gearbox with a 20mm hollow bore output and 80B5 IEC motor input, designed for compact right-angle drive arrangements where dependable performance, direct motor mounting, and efficient use of space are required.

This configuration is well suited to OEM machinery, small conveyor systems, packaging equipment, and general automation assemblies that need reliable 90° power transmission with a larger B5 flange motor connection. It offers a practical balance of compact design, smooth mechanical operation, and straightforward integration into industrial equipment.

Low Reduction: Maintains a comparatively higher output speed while still increasing available torque, making it a strong option for machines that need controlled speed reduction without moving into slower medium or high ratio ranges.

The 20mm hollow bore output supports secure connection to smaller driven shafts, while the 80B5 IEC motor input allows direct coupling to compatible larger flange-mounted IEC motors. As part of the Motovario BA Series bevel gearbox range, this version provides a flexible and modular right-angle solution for compact industrial drive systems.

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Key Specifications

Regulations: No
Bevel Helical: PAM B
Size: A42
Housing Version: U-Universal
Output Shaft Version: C-Hollow Shaft
Ratio (i): 7,62
Input Dim: Ø200×19 (IEC 80 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

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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	~184 rpm
2-Pole	2800	~367 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.

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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	IEC B5	Ø200 x 19

If you’re unsure whether your motor is B5 or B14, contact our technical team for compatibility confirmation.

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Internal Links & Compatible Options

Same ratio, different motor input: jump to the BA42 7.62:1 variant you need with a 20mm bore.

Need a different ratio? Explore the closest BA42 20mm bore ratios above 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

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FAQ

Why choose a 7.62:1 ratio for this gearbox?
A 7.62:1 reduction ratio is useful where equipment still needs relatively quick shaft speed but also benefits from extra torque over direct drive. It is a practical choice for compact machinery that needs efficient speed control without heavy reduction.

Why use the 80B5 motor input version?
The 80B5 IEC input is typically chosen where a larger flange-mounted motor connection is required. It suits machinery that uses B5 flange motors as standard and benefits from direct mounting with secure alignment.

Configuration Notes

Input flange note: the 80B5 IEC motor input uses a larger flange mounting arrangement that supports direct motor coupling in compact industrial drive systems where secure installation and consistent alignment are important.

Output bore note: the 20mm hollow bore is intended for smaller shaft sizes, providing stable shaft engagement and practical integration into compact driven assemblies.

Application example: ideal for small conveyors, automated transfer systems, packaging machinery, and light-duty production equipment where a compact right-angle gearbox with an 80B5 motor input and relatively fast output speed is needed.

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Need help selecting the correct ratio, bore size, or motor input?
Contact our gearbox specialists for sizing assistance, torque verification, and availability confirmation.