How to choose a hard tooth surface cylindrical gear reducer for your application
Quickly distinguish: DBY, DCY, DFY reducers. First check the arrangement of the shaft, then verify the speed ratio and load.
DBY/DCY/DFY Conical Cylindrical Hard Gear Reducer (JB/T9002, 90 ° Right Angle Input/Output, Spiral bevel Gear+Diagonal Cylindrical Gear)
| Series | Stages | Typical Ratio Range | Transmission Efficiency | Best Fit |
| DBY | 2-stage | 8–14 | ~96% | Higher output speed, moderate reduction |
| DCY | 3-stage | 16–50 | ~94% | General heavy-duty conveying, balanced ratio and torque |
| DFY | 4-stage | 90–500 | ~92% | Very low output speed, maximum reduction in one unit |
✅ DBY two-stage conical cylindrical hard tooth surface reducer
-Transmission structure: 1st stage bevel gear+1st stage helical cylindrical gear, a total of 2 stages
of reduction
●Speed ratio: 8, 10, 11.2, 12.5, 14
●Typical applications: Short distance belt conveyors, medium-sized transfer equipment, right
angle drives that do not require extremely low speeds
✅ DCY three-stage conical cylindrical hard tooth surface reducer
●Transmission structure: spiral bevel gear+2 sets of helical cylindrical gears, 3-stage reduction
●Speed ratio: 16, 18, 20, 22.4, 25, 28, 31.5, 35.5, 40, 45, 50
Typical applications: long-distance belt conveyors, mineral processing conveyors, cement
production lines, port bulk material conveyors
✅ DFY four stage conical cylindrical hard tooth surface reducer
●Transmission structure: spiral bevel gear+3 sets of helical cylindrical gears, 4-stage reduction
Speed ratio: 56~500
●Typical applications: bucket elevator, heavy-duty plate feeder, spiral feeding, low-speed
heavy-duty mixing equipment
Key points for selecting a hard toothed cylindrical bevel gear reducer:
1. Small speed ratio, pursuit of efficiency volume → DBY
2. Conventional belt conveyor, mainstream mining → DCY
3. Requires high speed ratio, low speed, and high torque → DFY
If you need technical drawing, 3D file, service factor calculation or quotation for ZDY single-stage gear reducer, please submit your requirement via our inquiry form. Our engineering team will reply within 24 working hours.