Overview
Motovario B153 60.92:1 bevel gearbox with a 90mm hollow bore output and 200B5 IEC motor input, designed for efficient 90° right-angle drive integration in industrial power transmission systems.
Built for dependable industrial service, it delivers stable speed reduction and consistent torque transfer for demanding plant, process, and OEM applications.
High Reduction: Delivers lower output speed with stronger torque multiplication, making it ideal for heavy-duty conveyors, material handling systems, mixers, feeders, and continuous-duty industrial machinery.
This configuration combines a 90mm hollow output bore with a 200B5 IEC motor input, providing secure shaft connection, reliable torque transmission, and dependable performance across conveyors, transfer systems, packaging lines, and machinery builds.
With its 200B5 flange input, this version is designed to suit larger IEC motors, offering increased input capacity and wider motor compatibility while retaining a compact right-angle installation footprint and proven industrial reliability.
As part of the modular Motovario B Series bevel helical gearbox range, this unit supports flexible mounting options, straightforward IEC motor fitment, and dependable long-term operation in continuous-duty industrial environments.
Key Specifications
Regulations: No
Bevel Helical: PAM B
Size: 153
Housing Version: U-Universal
Output Shaft Version: C-Hollow Shaft
Ratio (i): 60.92
Input Dim: Ø400 x 55 (IEC200 B5)
Output Shaft Dim: Ø90
Rotation Direction: Standard
ON-Oil Plugs: Breather-Drain-Level (Standard)
Mounting Position: B3
ON-Output Oil Seal: NBR-Nitrile
ON-Input Oil Seal: NBR-Nitrile
ON-Output Bearings: Taper Roller Bearings
ON-Lubrication: Without Oil
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 | ~23 rpm |
| 2-Pole | 2800 | ~46 rpm |
Need torque confirmation? Output torque depends on motor power (kW), gearbox efficiency, and service factor. Use our Gearbox Service Factor Calculator or contact us for verified torque figures.
Motor Input Chart (IEC Flange Details)
This gearbox is supplied with a 200B5 IEC motor input. Confirm flange compatibility below:
| Motor Input | IEC Standard | Input Dimensions |
|---|---|---|
| 200B5 | IEC 60072 / IEC 60034 (B5 flange) | Ø400 x 55 |
If you’re unsure whether your motor is B5 or B14, contact our technical team and we’ll confirm compatibility.
Need the non-standard 80mm bore option?
If your application requires a 80mm output bore instead of the standard 90mm, we can supply this as a non-standard configuration. View available B103 options and request the 80mm version here: Motovario B153 Gearbox.
Internal Links & Compatible Options
Same ratio, different motor input: jump to the B153 60.92:1 variant you need with a 90mm bore.
Need a different ratio? Explore the closest B153 90mm bore ratios to this version.
More B153 options: Browse all Motovario B153 gearbox ratios
Explore the full B Series range: Motovario B Series bevel gearboxes
Helpful calculators: Gearbox Ratio & Speed Calculator | Output Torque Calculator
Ratio Selection Tips
Best for: heavy-duty industrial applications that need lower output speed and higher torque multiplication, including bulk handling conveyors, mixers, feeders, rotary equipment, and continuous-duty process machinery.
Selection tip: a 60.92:1 ratio is a strong choice when your application needs slower output speed and increased torque multiplication. It suits machinery handling heavier loads or processes that benefit from controlled, steady movement. Always confirm load inertia, start/stop frequency, and total duty cycle before final selection.
FAQ
Will this ratio be too fast for my application?
A 60.92:1 ratio is intended for applications that need slower shaft speed and stronger torque multiplication. If your machinery needs higher output speed, a lower reduction ratio may be more suitable.
Can I run this with a VFD?
Yes — using a VFD can improve speed adjustability and provide smoother starts and stops. For continuous low-speed operation, check motor ventilation and thermal performance to ensure reliable operation.
Configuration Notes
Input flange note: the 200B5 IEC input is suitable for larger IEC motor frame compatibility, making this configuration useful where more substantial motor pairings are needed.
Output bore note: the 90mm hollow bore supports larger output shaft arrangements, helping maintain a secure connection and effective torque transfer in industrial transmission systems.
Application example: ideal for heavy-duty conveyors, material handling systems, and process machinery where a right-angle gearbox layout, dependable torque transmission, and slower controlled output speed are required.
Need help selecting the correct ratio, bore size, or motor input?
Contact our gearbox specialists for sizing support, torque checks, and availability confirmation.
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