Introduction to professional manufacturers of right angle gearboxes: H series right angle gearboxes (90 ° steering)

The H series right angle gearbox (90 ° steering) is widely used in the following pump systems:
·Vertical long shaft semi submersible pump: used in deep wells, sewage treatment, chemical storage tanks and other scenarios, with the motor placed above the liquid level for safety and reliability.
·Vertical axial flow pump/diagonal flow pump: In large-scale drainage and circulating water systems, it achieves high flow and low head transportation.
·Vertical fire pump set: Vertical fire pumps are often driven by H-series right angle gearboxes (90 ° rotation) to meet emergency start-up and high reliability requirements.
✅  Selection tip: The gearbox model should be matched based on parameters such as pump torque, speed, and axial force, and the installation dimensions (such as foot hole spacing and shaft extension length) should be confirmed to be compatible.
The H-series right angle gearbox (90 ° steering) is a power transmission device designed specifically for pump equipment, which can convert horizontal input power into vertical output. It is widely used in vertical long shaft pumps, deep well pumps, diagonal flow pumps and other equipment. Its technical characteristics and application advantages make it play an important role in water conservancy engineering, municipal water supply, fire protection systems, and industrial processes.
 
1、 Core technical characteristics of right angle gearbox for pumps
Power reversing function
The right angle gearbox achieves 90 ° power transmission through internal bevel gears or spiral bevel gears, efficiently transmitting the horizontal output shaft power of horizontal motors or diesel engines to the vertical pump shaft, meeting the installation requirements in space limited scenarios.
 
High load-bearing capacity design
The gearbox needs to withstand the axial thrust generated during pump operation (such as underwater gravity and fluid reaction force of deep well pumps), so it is structurally made of high-strength alloy steel and equipped with a dedicated thrust bearing system to ensure long-term stable operation.
 
Efficient transmission and low noise
Spiral bevel gears using grinding technology have high tooth surface accuracy, smooth meshing, and transmission efficiency of over 95%, while significantly reducing vibration and noise levels.
 
Sealing and lubrication reliability
Equipped with multiple sealing structures (such as skeleton oil seal and dust cover) to prevent external impurities from entering; The lubrication system is designed reasonably to ensure sufficient lubrication of the bearings during vertical installation and avoid dry wear failure.
 
Universal and modular design
Supports multiple installation methods (base type, torsion arm type), input and output connection forms (flange, key connection, expansion sleeve), can adapt to different brands of motors and pump bodies, and enhance system integration flexibility.
 
2、 Key technical parameters of H-series right angle gearbox (90 ° steering)
According to the summary of multiple sources of information, the main performance indicators of the H-series right angle gearbox (90 ° steering) are as follows:
 
Input speed: 245-3460 rpm
Output speed: 490-3460 rpm
Speed ratio: 1:1 to 1:2
Speed reduction ratio: 4:1 to 11:10
Transmission power: 0-1520 HP (approximately 1119 kW)
Maximum axial thrust bearing capacity: 125000 N
Applicable working conditions: able to withstand high temperatures, humidity, and corrosive environments, suitable for outdoor all-weather operation
3、 Typical application scenarios of H-series right angle gearbox (90 ° steering)
Vertical long axis fire pump transmission
In high-rise buildings, subways, tunnels and other fire protection systems, the H-series right angle gearbox (90 ° steering) directly connects the horizontal motor and vertical pump shaft, saving space and improving transmission efficiency.
 
Deep well pump and axial flow pump drive
The H-series right angle gearbox (90 ° rotation) is used for deep well pump sets in agricultural irrigation, urban water supply, and drainage projects, which can directly bear the axial load of the pump shaft and simplify the support structure.
 
Diagonal flow pump matched with submersible pump
In sewage treatment plants and chemical processes, the H-series right angle gearbox (90 ° steering) provides efficient variable speed transmission for diagonal flow pumps, adapting to different head and flow requirements.
 
Marine and Petrochemical Engineering
Due to its corrosion-resistant design and high reliability, the H-series right angle gearbox (90 ° steering) is suitable for driving critical pump sets in harsh environments such as offshore platforms and refineries.
 
4、 Installation and maintenance precautions for H-series right angle gearbox (90 ° steering)
During installation, it is necessary to ensure the alignment accuracy of the input and output shafts to avoid premature bearing wear caused by eccentricity.
When installing vertically, the lubricating oil level should be adjusted to ensure sufficient lubrication of the vertical shaft end bearings.
Regularly check the oil quality, level, and sealing condition to prevent moisture or impurities from entering.
It is recommended to run without load for 10-15 minutes before long-term shutdown to evenly distribute lubricating oil and prevent component corrosion.