
HBHB Series Industrial Gear Units (HB04–HB24)
Industrial Gear Units GUOMAO HB

HB is the new-generation GUOMAO industrial gear unit range, 21 sizes 04–24. Type H is parallel-shaft (H2, H3, H4 for two, three and four stages), type B is bevel-helical (B2, B3, B4). Nominal ratios 5–450, input power 4–5,622 kW, rated low-speed shaft torque 6.9–725 kN·m. Cylindrical gear rating follows GB/T 3480, DIN 3990 and ISO 6336, bevel gear rating DIN 3991 and ISO 10300; ground gears are accuracy grade 6. Helical pair efficiency 98.5 %, bevel pair 97.5 %, bearing life above 50,000 h at a service factor of 1.4 or higher.
Specifications
- Sizes
- 21 (04–24)
- Design types
- H2/H3/H4 — parallel shaft, B2/B3/B4 — bevel-helical
- Nominal ratios
- H2 6.3–28, H3 22.4–112, H4 100–450; B2 5–14, B3 12.5–90, B4 80–400
- Input power P1N
- 4–5,622 kW
- Rated torque T2N
- 6.9–725 kN·m
- Rating standards
- GB/T 3480, DIN 3990, ISO 6336; bevel gears DIN 3991, ISO 10300; gear accuracy grade 6
- Efficiency
- 98.5 % helical pair, 97.5 % bevel pair
- Versions
- mounting H (foot), M (footless), V (vertical); output shaft S (solid), H (hollow keyed), D (hollow with shrink disc); arrangements A–I
Applications
- Long-distance belt conveyors in ore processing plants
- Rotary kilns and mills of cement lines
- Roller tables and rolling-mill drives
- Scraper and bucket conveyors, escalators
- Extruders, calenders and mixers
We will select the right size for your task and prepare a quotation under a direct SDS contract.







