H Series Industrial Gearbox
High Efficiency · Low Noise · 100% Load Tested
Product Overview
H series heavy-duty hardened helical gear units adopt modular design for flexible configuration. Gears are made of 20CrMnTi alloy steel, carburized, quenched and precision ground (ISO 5~6 grade, HRC58–62). The housing is high-strength HT250 cast iron for excellent rigidity and vibration absorption.
It delivers high transmission efficiency of 92%–97%, wide ratio range 1.25~450, and large output torque. Available with solid shaft / hollow shaft output, foot-mounted or flange mounting. Cooling options include fan cooling and water cooling; backstop, heavy-duty sealing and ATEX explosion-proof versions are optional.
Features high shock resistance, strong load capacity, low noise and reliable continuous operation. Widely used in mining, port, cement, metallurgy, conveyor, mixer, lifting and power generation industries. OEM & custom service available.
Key Features
Data Sheet
| Housing material | Cast iron HT250 |
| Housing hardness | HBS190-240 |
| Gear material | 20CrMnTi alloy steel |
| Surface hardness of gears | HRC58 ° ~ 62 ° |
| Gear core hardness | HRC33 ~ 40 |
| Input / Output shaft material | 42CrMo alloy steel |
| Input / output shaft hardness | HRC25 ~ 30 |
| Machining precision of gears | Precision grinding, level 6 ~ 5 |
| Lubricating oil | GB L-CKC 220-460, Shell Omala 220-460 |
| Heat treatment | Tempering, carburizing, quenching, etc. |
| Efficiency | 94% ~ 96% (depending on the transmission stage) |
| Noise (MAX) | 60 ~ 68 dB |
| Temperature rise (MAX) | 40 ° C |
| Temperature rise (oil) (maximum) | 50 ° C |
| Vibration | ≤20 µm |
| Backlash | ≤ 20 arcmin |
| Bearing brand | HRB / LYC / ZWZ / C&U or SKF / FAG / NSK. |
| Oil seal brand | NAK |
Designation of Types
Basic Types
| Horizontal mounting position Helical gear units Types H1…H2…H3…H4… IN=1.25-450 |
|
H.SH  |
H.HH  |
H.DH  |
H.HM, H.DM  |
| Vertical mounting position Helical gear units Types H1…H2…H3…H4… IN=6.3-450 |
|
H.HV  |
H.DV  |
Commercial Information
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