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Product Overview
The H Series Industrial Right Angle Gearbox is designed to transfer horizontal shaft power from a diesel engine, horizontal motor, or steam turbine to a vertical pump shaft, enabling 90-degree power transmission and speed conversion.
With a compact structure, high transmission efficiency, space-saving design, and the ability to withstand axial thrust, this right angle gear drive is suitable for vertical long shaft pumps, deep well pumps, fire pumps, and other vertical shaft machinery.
Product Advantages
Compact 90-Degree Transmission
Converts horizontal power input into vertical output, making it suitable for vertical pump installations and space-limited pump room layouts.
Stable and Efficient Operation
The gear transmission structure provides smooth power transfer and supports continuous operation under different working conditions.
Axial Thrust Support
The upper section of the vertical shaft can be equipped with a thrust bearing to withstand axial force generated during pump operation, helping simplify the overall pump unit structure.
Multiple Models and Ratios Available
Different models and transmission ratios are available to match engine speed, pump speed, power, thrust load, and project requirements.
Application Range
1. Vertical Long Shaft Fire Pump Systems
Suitable for diesel-driven or horizontal motor-driven vertical fire pump units.
2. Deep Well Pumps and Long Shaft Pump Systems
Used for deep well water extraction, groundwater lifting, and vertical long shaft pump transmission.
3. Mixed Flow Pumps, Axial Flow Pumps, and Submerged Pumps
Suitable for large-flow water transfer, drainage, circulating water, and submerged operating conditions.
4. Agricultural Irrigation and Water Conservancy Projects
Used in irrigation systems, pumping stations, reservoir water intake, and water transfer projects.
5. Municipal, Fire Protection, and Industrial Water Systems
Suitable for municipal water supply and drainage, fire protection systems, industrial circulating water, and drainage systems.
6. Petrochemical, Mining, Metallurgy, and Marine Engineering
Used for vertical transmission equipment and pump units operating in demanding engineering environments.
Technical Parameters
Structure of Right Angle Gearbox
Performance Parameter Table
| Vertical Shaft Speed (r/min) | Horizontal Shaft Speed (r/min) | ||||||
| 4:5 | 5:6 | 10:11 | 1:1 | 11:10 | 6:5 | 5:4 | |
| 720 | 576 | 600 | 655 | 720 | 792 | 864 | 900 |
| 860 | 688 | 717 | 782 | 860 | 946 | 1032 | 1075 |
| 960 | 768 | 800 | 873 | 960 | 1056 | 1152 | 1200 |
| 1160 | 928 | 967 | 1055 | 1160 | 1276 | 1392 | 1450 |
| 1460 | 1168 | 1217 | 1327 | 1460 | 1606 | 1752 | 1825 |
| 1760 | 1408 | 1467 | 1600 | 1760 | 1936 | 2112 | 2200 |
| Model | Vertical Shaft Speed r/min | PowerHP（kW）
| Standard | Heavy Duty | Bidirectional | ||
| Single Downward Thrust | Maximum Downward or Upward Thrust
| ||||||
| Minimum | Maximum | Minimum | Maximum | ||||
| H60 | 860 960 1160 1460 1760 | 34/25 38/28 43/32 52/38 60/44 | 6450 6100 5780 5560 5340 | 26700 25580 24500 23100 22200 | 16000 15200 14700 13800 13350 | ||
|
H125 | 720 860 960 1160 1460 1760 | 63/46 72/53 79/58 90/66 108/79 125/92 | 12900 12000 11780 11350 10680 9790 | 37800 35600 34790 33400 31150 28900 | 12460 11800 11560 11100 10200 9800 | 54300 51600 50400 48000 44900 42300 | 22700 21400 21000 20000 18700 17400 |
|
H200 | 720 860 960 1160 1460 1760 | 100/73.5 116/85 126/93 144/106 172/126.5 200/147 | 16000 14680 14100 13570 12680 12000 | 53400 48950 47680 45400 42270 40000 | 15130 14240 13920 13350 12680 12000 | 72085 68080 65610 63630 60000 57850 | 30000 28000 27000 25360 23580 22690 |
|
H300 | 720 860 960 1160 1460 1760 | 150/110 174/128 189/139 216/159 258/190 300/220 | 16700 15800 15500 14900 14000 13350 | 60700 57850 56100 54300 51200 48950 | 16700 16000 15600 14900 14000 13350 | 83660 79650 77210 74310 69860 66750 | 36500 34700 33200 32500 30700 29400 |
|
H425 | 720 860 960 1160 1460 1760 | 213/156.5 246/181 268/197 306/225 366/269 425/312 | 20700 19800 19100 18500 17350 16900 | 83200 79650 77230 73870 69860 66750 | 21100 20200 19700 18700 17800 16900 | 111200 106800 103700 97900 93400 89000 | 49840 47610 46510 44500 41830 40050 |
|
H750 | 720 860 960 1160 1460 1760 | 375/276 435/320 473/347 540/397 645/474 750/551 | 27600 26250 25300 24500 23140 22250 | 89000 84500 82800 79200 74300 71200 | 27800 26700 26000 24500 23580 22250 | 115700 111200 107100 102300 97900 93400 | 53400 50730 49720 47610 44500 42720 |
Table 2A Power and Bearing Thrust Values at Different Speeds
| Vertical Shaft Speed (r/min) | 720 | 860 | 960 | 1160 | 1460 | 1760 | 2000 | 2200 |
| Power Percentage at 1760 r/min | 50 | 58 | 63 | 72 | 86 | 100 | 105 | 111 |
| Thrust Percentage at 1760 r/min | 134 | 126 | 122 | 115 | 106 | 100 | 96 | 92 |
Notes:
1.The parameters in Table 2 apply only to the rotation direction shown in Fig. 1. For other directions, please contact us.
2.Please contact us if the vertical shaft speed exceeds 1760 r/min.
Certification
The H Series Right Angle Gearbox can be supplied with relevant product documents and quality files according to project requirements, including:
Product certificate
Factory inspection document
Technical data sheet
Material or configuration description
Operation and maintenance manual
Supporting technical documents required for the project
For projects requiring special certifications, testing standards, or third-party documents, please specify the requirements during the inquiry stage. Final documentation shall be subject to the confirmed product model, technical agreement, and actual supply scope.
OEM & CUSTOM
We provide OEM support for the H Series Right Angle Gearbox according to customer project requirements, including:
Gearbox model selection
Transmission ratio matching
Power, speed, and thrust load confirmation
Matching design for diesel engines, motors, and pump units
Customized color, nameplate, and product marking
Batch supply for project-based orders
Customers may provide pump type, power, speed, transmission ratio, axial thrust, installation dimensions, and operating environment. Our team can assist with technical selection and matching.
Installation Instructions
Before installation, check whether the gearbox model, ratio, rotation direction, connection dimensions, and matching equipment parameters meet the project requirements.
Install the gearbox on a stable, level foundation with sufficient load-bearing capacity, and ensure that the unit is firmly fixed.
During installation, ensure proper alignment between the gearbox, prime mover, and pump shaft to avoid forced assembly or eccentric operation.
Before operation, add suitable lubricating oil and check the oil level, seals, fasteners, and cooling system.
During initial operation, observe noise, vibration, temperature rise, and oil leakage. Normal operation can begin only after confirming that there are no abnormalities.
Frequently Asked Questions
Its main function is to convert horizontal shaft power from a diesel engine, horizontal motor, or steam turbine into vertical output, enabling 90-degree transmission and speed matching for vertical pumps.
Key parameters include input power, input speed, output speed, transmission ratio, axial thrust, rotation direction, installation dimensions, lubrication method, cooling requirement, and operating environment.
Yes. The vertical shaft can be equipped with a thrust bearing to withstand axial force generated during pump operation. The specific thrust capacity should be confirmed according to the gearbox model and working conditions.
No. The need for an oil cooler depends on thrust load, speed, continuous operating time, ventilation conditions, and temperature rise. High-load or continuous-duty applications should be technically confirmed.
Before startup, check the lubricating oil level, rotation direction, coupling alignment, fastening bolts, cooling system, sealing condition, and whether there is any abnormal resistance or noise.
Common causes include poor alignment, unstable foundation, insufficient lubrication, bearing issues, gear wear, excessive load, or loose connecting parts. The unit should be stopped and inspected before further operation.
