Newly Re-designed P-Series Gearbox improves Backlash, Corrosion Resistance and Center Distance between Input and Outputs! 

Shaft-to-Bore & Bore-to-Bore Gearboxes

Heavy Duty Shaft-to-Bore & Bore-to-Bore Gearboxes

Ondrives.US’ BLH Series heavy-duty bevel bore gearboxes (BLHI, BLHO, and BLHB models) are engineered for reliable, high-performance operation in the most demanding applications. Manufactured with durable aluminum and hardened steel components, these heavy-duty gearboxes provide an output of 90° from the input. Available with 1:1 or 2:1 gear ratios and in a range of input/output shaft sizes and bore sizes, the BLH Series offers versatility for a wide range of operations. These bevel bore gearboxes provide high efficiency (up to 88% at 1,000 RPM) and torque values as high as 70 Nm (varies by model), with very low output backlash (≈1°).



Custom Shaft-to-Bore & Bore-to-Bore Gearboxes Manufactured to Your Exact Specifications

At Ondrives.US, we can assist with designs, modifications, prototypes, and complete production of custom drive components and gears for any application. If your project specifications require custom mechanical components, our engineering team can produce parts and components that match your drawings and meet your performance needs.

The Ondrives.US Advantage:

For over 30 years, Ondrives.US has been a leading designer and manufacturer of high-performance gearboxes. Our BLH Series heavy-duty bevel bore gearboxes are available in a range of sizes, torque ratings, and shaft-to-bore and bore-to-bore configurations, making it easy to find the right solution for your power transfer challenge.
  • Highly efficient heavy-duty gearboxes (as high as 88% at 1,000 RPM)
  • Torque outputs up to 70 Nm
  • Low backlash (≈1°)
  • 1:1 and 2:1 gear ratios
  • Shaft-to-bore and bore-to-bore configurations are available
  • Right angle (90°) output
  • Sturdy aluminum housings and steel interior components
  • Maximum input speed: 3,000 RPM
  • Permanent lubrication
Order the heavy-duty bevel gearboxes you need, request a quote, or contact us for more information.