Overview
Motovario B153 10.49:1 bevel gearbox with a 90mm hollow bore output and 180B5 IEC motor input, developed for efficient 90° right-angle drive integration in demanding industrial transmission systems.
Built for dependable day-to-day operation, it delivers stable speed reduction and efficient torque transfer for OEM machinery, plant equipment, and continuous-duty processing applications.
Low Reduction: Designed for applications that require relatively higher output speed while still benefiting from useful torque multiplication, making it ideal for faster conveyors, packaging machinery, transfer systems, and light-to-medium duty automation.
This version pairs a 90mm hollow output bore with a 180B5 IEC motor input, creating a robust drive solution for larger motor combinations where secure shaft mounting and consistent power transmission are essential.
With its 180B5 flange input, this configuration is intended for larger IEC motor frames, increasing input capacity and motor compatibility while maintaining a compact right-angle installation footprint and proven industrial reliability.
As part of the modular Motovario B Series bevel helical gearbox range, this unit offers flexible mounting options, straightforward IEC motor fitment, and dependable long-term service in industrial environments.
Key Specifications
Regulations: No
Bevel Helical: PAM B
Size: 153
Housing Version: U-Universal
Output Shaft Version: C-Hollow Shaft
Ratio (i): 10.49
Input Dim: Ø350 x 48 (IEC180 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 | ~133 rpm |
| 2-Pole | 2800 | ~267 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 180B5 IEC motor input. Confirm flange compatibility below:
| Motor Input | IEC Standard | Input Dimensions |
|---|---|---|
| 180B5 | IEC 60072 / IEC 60034 (B5 flange) | Ø350 x 48 |
If you’re unsure whether your motor is B5 or B14, contact our technical team and we’ll confirm compatibility.
Internal Links & Compatible Options
Same ratio, different motor input: jump to the B153 10.49:1 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
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.
Ratio Selection Tips
Best for: higher-speed right-angle drive duties where space is limited but dependable torque gain is still needed, including packaging systems, belt conveyors, feeders, and automated transfer equipment.
Selection tip: a 10.49:1 ratio is a practical option when you want to keep output speed relatively high while improving pulling force and driveline efficiency. It is especially suitable for continuously running machinery where compact installation, stable performance, and smooth transmission are key. Always confirm startup load, inertia, and operating cycle before final selection.
FAQ
Is 10.49:1 a good choice for faster-running machinery?
Yes — this ratio is well suited to applications that need quicker output speed than mid or high reduction setups, while still benefiting from useful torque multiplication. For very slow-running or high-reduction duties, a higher ratio would normally be the better choice.
Can this gearbox be paired with a VFD?
Yes — it can be used with an inverter-controlled motor for more accurate speed adjustment and smoother machine control. For prolonged operation at very low motor speeds, make sure the motor has adequate cooling and is correctly sized for the load.
Configuration Notes
Input flange note: the 180B5 IEC input is designed for larger motor frames, making this version suitable for applications that require increased motor capacity and stronger input-side drive performance.
Output bore note: the 90mm hollow bore is intended for larger driven shafts, providing a solid and stable mechanical connection for dependable torque transmission in demanding industrial assemblies.
Application example: ideal for packaging conveyors, transfer lines, or material handling systems where a compact right-angle drive, larger motor compatibility, and relatively fast 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.
Reviews
There are no reviews yet.