Motovario H122 Inline Helical Gearbox – 70mm Hollow Bore, Cast Iron, Ratios 5.27:1–44.10:1
The Motovario H122 inline helical gearbox is a rugged, high-performance reducer designed for demanding industrial applications. With a 70 mm hollow bore, precision-cut helical gears, and a cast iron housing, it delivers reliable torque transfer, low vibration, and long operating life. Ideal for conveyors, mixers, packaging systems and heavy-duty automation, the H122 offers broad mounting flexibility and high motor compatibility.
Key Specifications
Manufacturer: Motovario
Series: H Series – Inline Helical Gearboxes
Model: H122
Output Bore: 70 mm Hollow Bore
Ratio Options: 5.27:1 to 44.10:1
Max Motor Input Frame: IEC 200 Frame
Mounting Types: Foot | Foot & Flange (FB Ø400mm)
Input Motor Mounts: 132B5 | 160B5 | 180B5 | 200B5
Housing Material: Cast Iron
Paint Finish: RAL 5010 Blue
Lubrication: Synthetic ISO VG220
Mechanical & Construction
Gearing: High-efficiency helical gearing for smooth & quiet running
Bearings: Taper roller bearings for increased radial load capacity
Output Seals: NBR nitrile oil seals
Input Seals: NBR nitrile oil seals
Cooling: Ribbed housing for optimal heat dissipation
Corrosion Protection: Tough industrial coating
Environmental & Compliance
Duty Rating: Continuous industrial duty
Mounting Orientation: Horizontal or vertical
Temperature Range: -20°C to +40°C (standard)
Performance Characteristics
Torque Output: High load capability dependent on ratio & motor pairing
Efficiency: High compared to worm-drive gearboxes
Noise Level: Low noise operation suitable for internal machinery
Ratio Options (H122)
- 5.27:1 | 5.78:1 | 7.05:1 | 7.74:1 | 8.48:1 | 10.35:1
- 12.66:1 | 13.86:1 | 16.92:1 | 19.32:1 | 20.57:1
- 22.52:1 | 24.47:1 | 27.49:1 | 29.86:1
- 33.00:1 | 36.13:1 | 44.10:1
Features & Benefits
- ✅ 70 mm hollow bore for strong torque transfer
- ✅ Cast iron construction for durability in harsh environments
- ✅ Flexible mounting options including foot and flange variants
- ✅ Efficient and quiet helical gear technology
- ✅ Supports large motor input up to IEC 200 frame
Typical Applications
- Conveyors and material handling
- Mixers and agitators
- Pumps and blowers
- Packaging machinery
- Industrial automation and machinery drives
Why Buy from Worm Gear Motors Online?
Genuine Motovario products: Factory-backed warranty and quality assurance.
Expert gearbox selection: We match torque, ratio & mounting for your system.
Fast UK delivery: Rapid fulfilment available for urgent replacements.
Best Price Guarantee: Find it cheaper? We’ll beat it!
Order the Motovario H122 Inline Gearbox Today
All mounting and ratio options available now — ideal for industrial power transmission.
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