Overview
Motovario B163 53.63:1 bevel gearbox with a 100mm hollow bore output and 225B5 IEC motor input, built for heavy-duty right-angle power transmission in demanding industrial drive applications.
Developed for OEM equipment, processing systems, and plant machinery, this configuration delivers dependable speed reduction, stable torque transfer, and reliable long-term mechanical performance in continuous-duty environments.
High Reduction: This ratio provides lower output speed with stronger torque multiplication, making it ideal for conveyors, mixers, feeders, indexing systems, and heavier-duty industrial machinery.
The 100mm hollow bore output is suited to larger driven shafts, helping ensure secure shaft fitment and consistent torque transmission in higher-load industrial installations.
With its 225B5 IEC motor input, this version is designed for larger flange-mounted motor pairings, offering increased input-side capacity and wider compatibility for more demanding drive packages while preserving the modular strength of the Motovario B Series bevel helical gearbox platform.
Key Specifications
Regulations: No
Bevel Helical: PAM B
Size: 163
Housing Version: U-Universal
Output Shaft Version: C-Hollow Shaft
Ratio (i): 53.63
Input Dim: Ø450 x 60 (IEC225 B5)
Output Shaft Dim: Ø100
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 | ~26 rpm |
| 2-Pole | 2800 | ~52 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 225B5 IEC motor input. Confirm flange compatibility below:
| Motor Input | IEC Standard | Input Dimensions |
|---|---|---|
| 225B5 | IEC 60072 / IEC 60034 (B5 flange) | Ø450 x 60 |
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 B163 53.63:1 variant you need with a 100mm bore.
Need a different ratio? Explore the closest B163 100mm bore ratios to this version.
More B163 options: Browse all Motovario B163 gearbox ratios
Explore the full B Series range: Motovario B Series bevel gearboxes
Helpful calculators: Gearbox Ratio & Speed Calculator | Output Torque Calculator
FAQ
Why is an 53.63:1 ratio useful in industrial applications?
An 53.63:1 ratio is a strong choice when equipment needs to retain a relatively higher output speed while still gaining practical torque multiplication. It suits machinery that must run efficiently without moving into slower, high-reduction operating ranges.
Is this version suitable for larger motor-driven systems?
Yes — the 225B5 IEC input is intended for larger motor frame compatibility, making this configuration well suited to heavier-duty drive packages and applications that demand greater input-side capacity.
Configuration Notes
Input flange note: the 225B5 IEC input is designed for larger flange-mounted industrial motors, giving this gearbox added flexibility for higher-power installations and more demanding drive assemblies.
Output bore note: the 100mm hollow bore is intended for larger driven shafts, helping provide secure shaft engagement and dependable torque transfer in high-load applications.
Application example: ideal for conveyors, mixers, packaging lines, process machinery, and material handling systems where a larger shaft output, robust right-angle drive layout, and stronger torque multiplication with lower running speed are needed for efficient industrial operation.
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