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HEM MOTOR HF Series Parallel Shaft Helical Gear Reducers are industrial power-transmission units with parallel input and output shafts, designed for high efficiency, a compact housing and long service life. Hardened and ground helical gear stages combine high torque capacity with quiet running, and the broad housing range from HF37 to HF127 suits motor powers from 0.12 kW up to 90 kW.
For reducers and reducer-duty motors, HEM Motor plans the housing, ratio and mounting type around your application and supplies everything from a single source with stock availability and fast delivery. See current electric motor prices for the matching motor.
HF Series Housing (Size) Options
The HF series is offered in graduated housing sizes for rising torque demand. The table below lists the approximate maximum output torque, recommended motor power range and typical reduction ratio for each housing. Values are nominal; the exact selection depends on output speed, service factor and operating hours.
| Housing / Model | Approx. Max Output Torque (Nm) | Recommended Motor Power (kW) | Typical Reduction Ratio (i) |
|---|---|---|---|
| HF37 | ~200 | 0.12 – 3 | 3.5 – 130 |
| HF47 | ~400 | 0.18 – 5.5 | 3.5 – 150 |
| HF57 | ~800 | 0.25 – 9.2 | 4 – 175 |
| HF67 | ~1,550 | 0.55 – 15 | 4.5 – 190 |
| HF77 | ~3,000 | 0.75 – 22 | 5 – 195 |
| HF87 | ~4,300 | 1.5 – 37 | 5.5 – 220 |
| HF97 | ~8,000 | 3 – 55 | 6 – 250 |
| HF107 | ~13,000 | 5.5 – 75 | 7 – 270 |
| HF127 | ~18,000 | 11 – 90 | 8 – 290 |
To pick the right housing, just share the output speed (rpm), the driven load and the daily running time; we will define the correct HF housing size and reduction ratio together.
Key Features
- High-efficiency helical gearing with around 96–98% efficiency per stage
- High torque capacity with low energy consumption
- Hardened and ground gears for quiet, vibration-free operation
- Durable cast housing and long maintenance intervals
- IEC-compliant motor adaptation (B5 / B14 flanged input)
- Compact, space-saving parallel shaft design
- Built for heavy industry and continuous duty
- Foot and flange mounting options, solid output shaft
Supplied as a Geared Motor (Gearmotor)
HF series reducers can be supplied complete as a geared motor together with IE3 efficient HEM Motor electric motors. Because motor power, pole count (speed) and reduction ratio are matched in a single package, installation is faster and compatibility issues disappear.
Applications
- Conveyor belts and material handling systems
- Crushing, screening and mining plants
- Concrete batching plants
- Feed and flour mills
- Food production and packaging lines
- Plastics, rubber and recycling machines
- Mixers, agitators and dosing systems
- Agriculture, livestock and general machine building
Mounting and Connection Types
The HF series adapts to different layouts with a foot-mounted housing, B5/B14 flanged output and solid output shaft. As the motor adaptation follows IEC flange dimensions, it can also be matched to your existing motors.
Why HEM Motor HF Series?
As a manufacturer and seller, HEM Motor supplies the HF37–HF127 housing range, suitable reduction ratios and motor matching from stock or with short lead times. We size the housing, calculate the ratio and assess the service factor with you to build the most suitable and economical solution.
Frequently Asked Questions
Which housing sizes are available in the HF series?
HF37, HF47, HF57, HF67, HF77, HF87, HF97, HF107 and HF127 are offered as standard. Larger housings for higher torque are evaluated on request.
Can I buy the reducer together with its motor?
Yes. The HF series can be matched with a HEM Motor electric motor at the required power and speed and delivered complete as a geared motor.
How do I select the right housing and ratio?
Share the output speed, the driven load (or required output torque) and the daily running time; we define the suitable HF housing size and reduction ratio with the service factor and send price and delivery details.
For HF series parallel shaft helical reducers and the matching motor, just share the housing, ratio and mounting type, and we will prepare a quote with stock and fast-delivery information.