Overview
B083 62.48:1 bevel helical gearbox with a 40mm hollow bore output and 90B5 IEC motor input for efficient 90° right-angle power transmission in industrial machinery.
Engineered for continuous-duty operation, the B083 62.48:1 configuration provides controlled reduction, dependable torque delivery, and a durable right-angle drive package built around a 40mm hollow bore and 90B5 motor input.
High reduction: With a 62.48:1 ratio, this 90B5 / 40mm gearbox is configured for stronger torque multiplication and lower output speed, making it a good choice for heavier conveyors, process equipment, and applications where controlled movement is important.
Using a 90B5 IEC motor input, this 62.48:1 configuration suits installations that need a little more motor frame capacity while still maintaining a compact right-angle drive package around the 40mm output.
As part of the modular Motovario B083 bevel helical gearbox range, this 62.48:1 variant combines IEC motor compatibility, compact right-angle mounting, and a 40mm hollow bore layout for OEM builds, replacements, and upgrade projects using 90B5 motors.
Key Specifications
- Series: B Series – Bevel Helical Gearboxes
- Model: B083
- Reduction Ratio: 62.48:1
- Output Bore: 40mm Hollow Bore
- Motor Input: 90B5 IEC Flange
- Housing Material: High-strength cast iron
- Gear Type: Spiral bevel + hardened helical stage
- Mounting Positions: B3 Horizontal Mount
- Duty Rating: Suitable for continuous industrial operation (S1)
Designed to IEC dimensional standards, ensuring seamless compatibility with IEC frame motors and inverter-driven applications.
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 | ~22 rpm |
| 2-Pole | 2800 | ~45 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 90B5 IEC motor input. Confirm flange compatibility below:
| Motor Input | IEC Standard | Input Dimensions |
|---|---|---|
| 90B5 | IEC 60072 / IEC 60034 (B5 flange) | Ø200 × 24 |
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 B083 62.48:1 variant you need (40mm bore).
Need a different ratio? Explore the closest B083 40mm bore ratios above and below this version.
More B083 options: Browse all Motovario B083 gearbox ratios
Explore the full B Series range: Motovario B Series bevel gearboxes
Helpful calculators:
Gearbox Ratio & Speed Calculator |
Output Torque Calculator
Performance & Design Features
✔ Space-saving 90° bevel layout for compact machine designs
✔ High torque output from a compact, industrial-duty footprint
✔ Precision-machined spiral bevel gear set for smooth, low-noise power transfer
✔ Heavy-duty taper roller bearings for strong radial and axial load handling
✔ Well suited to inverter (VFD) driven motors and variable-speed control
✔ Rigid cast iron housing built for OEM and continuous-duty operation
Ratio Selection Tips
- Best for: Best for heavier loads where pulling power is the priority — suitable for loaded conveyors, agitators, and machinery that benefits from reduced speed and higher torque stability.
- Selection tip: for torque-heavy duties, high reduction helps — verify duty cycle, heat dissipation, and whether backdriving resistance is required.
FAQ
Does a high ratio increase torque a lot?
Yes — high reduction significantly multiplies torque and reduces output speed, improving stability under load. Always confirm shaft torque and gearbox service factor.
Do I need braking or a soft start?
Often recommended for heavier loads. A VFD ramp or soft starter helps reduce shock loading during start/stop, and braking may be needed for controlled stopping.
Typical Applications
- Conveyor and line-shaft drive systems
- Automated production and assembly lines
- Food and beverage processing machinery
- Materials handling and logistics equipment
- Pumps, mixers, and agitator drives
- OEM machine and equipment builds
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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