Descrizione del prodotto
Technical Parameter
| Housing material | HT200 high-strength cast iron(EWR37, EWR47, EWR57, EWR67, EWR77, EWR87) |
| Housing material | HT250 High strength cast iron(EWR97, EWR 107, EWR137, EWR147, EWR167) |
| Gear material | 20CrMnTi |
| Gear Surface&hardness | HRC58°-62° |
| Gear core hardness | HRC33°-78° |
| Input/Output shaft material | 40Cr |
| Gear Machining precision | Accurate grinding 6-5 grade |
| Heat treatment | Carburizing, Quenching etc |
| Efficiency | Up to 92% |
| Noise(Max) | 60-67dB |
| Installation type | Foot mounted, flange mounted |
| Output type | Solid shaft |
| Bearing brand | NSK, SKF, HRB, ZWZ etc |
| Oil seal brand | NAK, KSK etc |
| Lubricant | VG220 |
| Motor | IP55, F class |
| Motor shaft | 40Cr, Carburizing, Quenching etc |
| Warranty | 12months |
| Color | Blue, Grey |
| Model | EWR37 | EWR47 | EWR57 | EWR67 | EWR77 | EWR87 | EWR97 | EWR107 | EWR137 | EWR147 | EWR167 |
| Weight | 9 | 14 | 24 | 27 | 33 | 60 | 110 | 150 | 255 | 365 | 615 |
| Shaft Ф | 25mm | 30mm | 35mm | 35mm | 40mm | 50mm | 60mm | 70mm | 90mm | 110mm | 120mm |
Packing
Features
♦Specially designed for agitator.
♦Compact structure, Integrated casting housing, low noise and long service life.
♦High efficiency and low maintenance.
Design
♦ Reducing Ratio: 2 stage 5~24.8, 3 stage 27.2~264, EWR/EWR combination type can be up to 18125.
♦ Mounting Type: Foot mounted, Flange mounted.
♦ Output Shaft: CHINAMFG shaft.
♦ Efficiency: Two-stage96%, three-stage 94%, and combination of EWR/EWR85%.
Technical Data
♦Size EWR37-EWR167
♦ Output Torque 130~18000N. M
♦ Motor Power 0.18~160kw
♦ Ratio 5~264(imax: 18125)
Industrial Application
♦Power Plant Equipment
♦Metallurgical Industry
♦Metal Forming Machinery
♦Petrochemical Industry
♦Mining Machine
♦Hoisting Machinery
♦Construction Industry
♦Environmental Protection Industry
♦Cable Industry
♦Food Machinery
Certificates
Passed ” ISO 9001 International Quality System Certificate”, “Europe CE Certificate”, ” Swiss SGS Certificate”, “High-tech enterprise certificate of ZheJiang city”, “Excellent performance management enterprise of ZheJiang city”, etc.
FAQ
1. Q: Can you make as per customer drawing?
A: Yes, we offer customized service for customers.
2. Q: Are you a factory or trading company?
A. We are a manufacturer in ZheJiang , China.
3. Q: What’s your MOQ?
A: One piece.
4. Q: Wha’s yout quality control system?
A: We are certified with CE,CCC,ISO 9001. We have own independent QC team * advanced equipments to ensure quality from material purchasing til goods delivery.
5. Q: What’s your production time?
A: 15-35 working days after receiving payment.
6. Q: What’s your payment terms?
A: T/T, 30% payment in advance, 70% balance payment should be paid before shipping.
7. Q: What’s your package?
A: In wooden box packaging.
Company information
ZheJiang CHINAMFG Gear Reducer Co., Ltd. is a large professional manufacturer & exporter of various helical gear reducers and specialize in the gear reducers area in China for 20 years. CHINAMFG has excellent R&D team, top-ranking production and test equipment. So we have the strong power in the developing and manufacturing the standards type as well as the customized type gear reducer for our customers.
We make and supply 6 series of speed reducer as follows:
EWK series helical-bevel gear reducers,
EWR series helical gear reducers,
EWF series helical gear reducers,
EWS series helical-worm gear reducers
HB series gearboxes,
P series planetary gear reducers,etc.
Our products have been exporting to many countries and regions, including but not limited Argentina , Brazil, Mexico, Columbia , Ecuador , USA, South Korea, Vietnam, Indonesia, Georgia, South Africa, China HK, China Taiwai,
Welcome to send us enquiry or drawing. Visit us in ZheJiang , China.
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| Applicazione: | Motorcycle, Machinery, Marine, Toy, Agricultural Machinery |
|---|---|
| Durezza: | Superficie del dente indurita |
| Installazione: | Horizontal Type |
| Disposizione: | Coaxial |
| Gear Shape: | Helical Gear |
| Fare un passo: | Three-Step |
| Personalizzazione: |
Disponibile
| Richiesta personalizzata |
|---|

Lubrication Frequency for Mower Gearbox
The frequency of lubricating your mower gearbox depends on the manufacturer’s recommendations, usage intensity, and operating conditions. Here are some general guidelines:
- Regular Maintenance: It’s recommended to lubricate your mower gearbox at the beginning of the mowing season or after about 25-50 hours of operation.
- Heavy Usage: If you’re using your mower frequently or in challenging conditions such as dusty or wet environments, you might need to lubricate more often, perhaps every 10-20 hours of operation.
- Check the Manual: Consult your mower’s user manual for specific lubrication intervals and the type of lubricant to use. Different mowers and gearboxes might have varying requirements.
- Inspect Regularly: Keep an eye on the gearbox for any signs of oil leakage or unusual noise. If you notice any issues, it’s a good idea to inspect and lubricate the gearbox as needed.
Using the right type of lubricant is crucial for optimal gearbox performance. Make sure to use a high-quality lubricating oil recommended by the manufacturer. Always follow proper lubrication procedures outlined in the user manual to ensure the longevity and efficiency of your mower gearbox.

Differenze tra cambio manuale e automatico per tosaerba
I cambi manuali e automatici dei tosaerba differiscono per funzionamento, controllo e praticità:
- Operazione: Nei cambi manuali, l'utente deve innestare e disinnestare le marce manualmente tramite frizione o leva. I cambi automatici, invece, cambiano marcia automaticamente in base alla velocità e al carico.
- Controllare: I cambi manuali offrono un controllo più diretto sulla selezione delle marce, consentendo all'utente di scegliere la marcia più adatta a specifiche esigenze. I cambi automatici, invece, offrono un'esperienza senza intervento umano, con il cambio di marcia gestito direttamente dal cambio stesso.
- Convenienza: I cambi automatici sono più comodi per gli utenti che preferiscono un'esperienza senza complicazioni. Eliminano la necessità di cambiare marcia manualmente, rendendo il funzionamento più semplice e intuitivo.
- Complessità: I cambi automatici sono più complessi nella progettazione rispetto a quelli manuali a causa della presenza di sensori, controlli elettronici e componenti aggiuntivi necessari per il cambio automatico.
- Efficienza: I cambi manuali offrono un maggiore controllo sull'erogazione di potenza e possono risultare più efficienti in determinate situazioni. Tuttavia, i cambi automatici ottimizzano i cambi di marcia per massimizzare il risparmio di carburante e le prestazioni.
- Costo: I cambi automatici sono generalmente più costosi da produrre e riparare a causa della loro complessità. I cambi manuali sono più semplici e spesso più economici.
La scelta tra cambio manuale e automatico per il tosaerba dipende dalle preferenze dell'utente, dal livello di controllo desiderato e dall'uso previsto del tosaerba. Entrambi i tipi presentano vantaggi e svantaggi, e la decisione dovrebbe basarsi sulle esigenze e sulle priorità dell'utente.

Function of a Mower Gearbox
A mower gearbox operates through a series of gears and components that work together to transmit power and convert the rotational motion of the engine into the cutting action of the blades. Here’s how a typical mower gearbox works:
- Power Input: The mower gearbox receives power from the mower’s engine via a drive shaft.
- Gear Reduction: The gearbox contains a set of gears that are arranged in specific ratios to achieve the required torque and speed conversion. The input gear, connected to the drive shaft, meshes with one or more intermediate gears.
- Torque Conversion: As the input gear turns, it drives the intermediate gears. The gear arrangement within the gearbox results in a reduction of speed and an increase in torque. This is essential for providing the cutting blades with the necessary force to cut through vegetation.
- Blade Connection: The output shaft of the gearbox is connected to the cutting blades. As the gearbox output shaft rotates, it transfers the torque to the blades, causing them to spin.
- Blade Rotation: The rotational motion of the blades is what enables them to cut through grass and other vegetation. The increased torque generated by the gearbox allows the blades to effectively perform cutting or mulching actions.
Modern mower gearboxes are designed for efficiency, durability, and precision. They are often equipped with ball bearings, seals, and lubrication to minimize friction and ensure smooth operation. Some mower gearboxes also include additional features such as adjustable cutting heights, blade synchronization, and directional control to enhance the versatility of the mower.


editor by CX 2024-03-09