Motovario B123 Bevel Helical Gearbox – 55mm Hollow Bore, Cast Iron, Ratios 7.97:1–180.40:1

The Motovario B123 bevel helical gearbox is a right-angle industrial drive solution engineered for high torque transmission, smooth performance, and long service life. Featuring a robust cast iron housing and available with 55mm hollow bore output sizes, the B123 is widely used in conveyors, mixing equipment, process machinery, and automated production systems requiring efficient 90-degree power transfer.

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Key Specifications

Manufacturer: Motovario
Series: B Series – Bevel Helical Gearboxes
Model: B123
Output Bore Options: 55mm Hollow Bore
Ratio Range: 7.97:1 – 180.40:1
Input Motor Mounts: 90B5 | 100–112B5 | 132B5 | 160B5 | 180B5
Max Motor Frame Size: IEC 180
Housing: Cast Iron
Paint: RAL 5010 Blue Industrial Coating
Lubrication: Synthetic ISO VG220

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Mechanical & Construction

Gear Type: Bevel + helical gearing for efficient right-angle power delivery
Bearings: Heavy-duty taper roller bearings on output shaft
Sealing: NBR nitrile oil seals on input and output
Cooling: Ribbed housing improves thermal dissipation
Backlash: Low backlash gearing for smoother machine operation
Shock Resistance: Designed for continuous, high-load applications

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Performance & Duty

Torque Output: High – dependent on motor kW and ratio
Efficiency: High efficiency vs. worm gear designs
Duty Cycle: S1 Continuous industrial duty
Installation: Horizontal or vertical mounting
Noise Level: Low operational noise

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Environmental & Compliance

Operating Temperature: −20°C to +40°C
Surface Protection: Corrosion-resistant painted finish
Application Suitability: Industrial environments and harsh operational duty

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Ratio Options (B123)

• 7.97 | 9.62 | 10.33 | 12.48 | 13.84 | 15.38 | 18.58 | 20.61
• 22.78 | 25.89 | 27.51 | 30.79 | 31.26 | 34.68 | 40.53
• 44.89 | 49.80 | 54.30 | 59.36 | 62.59 | 69.43 | 74.42
• 80.04 | 89.87 | 97.01 | 99.70 | 106.65 | 119.60
• 129.96 | 144.43 | 160.23 | 180.40

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Accessories & Options

Available with:
– Torque arms
– Output covers
– Plug-in solid shaft kits (single and double options)
– Motor adaptors and mounting accessories
– Output flanges and double worm modules

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Features & Benefits

• ✅ Right-angle bevel gearbox for compact machine layouts
• ✅ 55mm hollow bore options support wide application use
• ✅ Cast iron housing ensures durability in demanding environments
• ✅ Taper roller bearings deliver high load performance
• ✅ IEC motor compatibility up to Frame 180

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Typical Applications

• Conveyors & bulk handling systems
• Mixers, agitators & industrial processing equipment
• Pumps, blowers & material transfer systems
• Automation & OEM machinery requiring 90-degree torque transfer

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Why Buy from Worm Gear Motors Online

Genuine Motovario supply: Full warranty & traceability guaranteed.

Engineering support: We ensure correct torque, ratio & mounting specification.

Fast UK fulfilment: Rapid sourcing for breakdown replacements.

Best Price Guarantee: Found cheaper? We’ll beat it!

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Order the Motovario B123 Bevel Helical Gearbox Today

All ratios and mounting configurations available with expert guidance included.
Contact us for pricing, torque charts & delivery options