Motovario B153 Bevel Helical Gearbox – 80mm Hollow Bore, Cast Iron, Ratios 10.49:1–165.42:1

The Motovario B153 bevel helical gearbox is a heavy-duty right-angle industrial gearbox designed for applications requiring high torque, smooth power transmission, and efficient directional change. Built with a durable cast iron housing, precision bevel + helical gears, and available with either 80mm hollow bore outputs, the B153 is perfectly suited for conveyors, crushers, mixers, and continuous-duty process machinery.

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Key Specifications

Manufacturer: Motovario
Series: B Series – Bevel Helical Gearboxes
Model: B153
Output Bore: 80mm Hollow Bore
Ratio Range: 10.49:1 – 165.42:1
Input Motor Mounts: 132B5 | 160B5 | 180B5 | 200B5 | 225B5
Max Motor Frame Size: IEC 225
Housing Material: Cast Iron
Lubrication: Synthetic ISO VG220
Finish: RAL 5010 Blue (Industrial Coating)

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Mechanical & Construction

Gear System: Bevel + helical gearing for high torque & low losses
Bearings: Output taper roller bearings for very high radial loads
Seals: NBR nitrile oil seals – both input & output
Cooling: Ribbed external housing for thermal dissipation
Shock Resistance: Engineered for heavy-duty duty cycles
Backlash: Low backlash for smooth drive performance

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Performance & Duty

Torque Output: Very high – dependent on ratio and input power
Efficiency: High-efficiency gearing vs. worm transmission
Industrial Duty: S1 Continuous
Orientation: Horizontal or vertical installations
Noise Level: Low for a right-angle drive system

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Environmental & Compliance

Operating Temperature: –20°C to +40°C (Standard)
Ingress Resistance: Robust sealing for industrial environments
Corrosion Protection: Long-life coating & sealing

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Ratio Options (B153)

• 10.49 | 12.64 | 14.01 | 15.40 | 18.56 | 20.56
• 23.86 | 25.19 | 28.23 | 30.35 | 33.63 | 35.02
• 38.81 | 42.30 | 47.53 | 50.56 | 54.64 | 57.27
• 60.92 | 63.47 | 71.15 | 77.22 | 83.89 | 87.65
• 93.05 | 103.12 | 123.88 | 134.27 | 149.26 | 165.42

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Accessories & Options

Available:
– Torque arms
– Output covers & flanges
– Plug-in solid output shafts (single + double)
– Double-worm extension units
– Motor adaptors and mounting kits

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Features & Benefits

• ✅ Right-angle bevel drive enables compact machine layouts
• ✅ 80mm hollow bore options for flexible drive coupling
• ✅ High mechanical strength for demanding environments
• ✅ Compatible with IEC 132–225 motors for powerful drive setups
• ✅ Long-life taper roller bearings for heavy radial loads

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Typical Applications

• Bulk handling conveyors
• Mixing, shredding & processing machines
• Pumps, agitators & wastewater equipment
• Industrial automation & directional drive layouts
• Mining, recycling & earth material processing

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Why Buy from Worm Gear Motors Online

Genuine Motovario Gearboxes: Full factory warranty and authenticated supply.

Technical selection service: Ratio, torque, and mounting validation included.

Fast Dispatch: Rapid availability for urgent replacements.

Best Price Guarantee: If you find it cheaper – we’ll beat it!

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Order the Motovario B153 Bevel Helical Gearbox Today

All ratio & mounting configurations available with expert support.
Contact us for pricing, lead times & technical assistance