Description du produit
RV Series Worm Gear Boxes Gearbox Speed Reducer with Electric Motors
| Input Configurations | Double or single input shaft (NRV) |
| PAM / IEC motor input shaft with circle or square flange (NMRV) | |
| Output Configurations
| Double or single output shaft |
| Output flange |
Technical Data:
| Housing material | Cast iron/Ductile iron |
| 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 | accurate grinding, 6~5 Grade |
| Lubricating oil | GB L-CKC220-460, Shell Omala220-460 |
| Heat treatment | tempering, cementiting, quenching, etc. |
| Efficiency | 94%~96% (depends on the transmission stage) |
| Noise (MAX) | 60~68dB |
| Temp. rise (MAX) | 40°C |
| Temp. rise (Oil)(MAX) | 50°C |
| Vibration | ≤20µm |
| Backlash | ≤20Arcmin |
| Brand of bearings | China top brand bearing, HRB/LYC/ZWZ/C&U. Or other brands requested, NSK. |
| Brand of oil seal | NAK — ZheJiang or other brands requested |
Spécification
| Model | Motor Input Flange (circle) | Transmission Ratio | Power (kw) | Rapport (i) | Nominal Torque (Nm) | |||||||||||||||
| PAM / IEC | Internal Dia. | Dis. Between Diagonal Screw Holes | External Dia. | Width of Key Slot | 5 | 7.5 | 10 | 15 | 20 | 25 | 30 | 40 | 50 | 60 | 80 | 100 | ||||
| N | M | P | E | Diamter of Input Shaft | ||||||||||||||||
| NMRV25 | 56B14 | 50 | 65 | 80 | 3 | 9 | – | 9 | – | 0.06 | 7.5-60 | 2.6-14 | ||||||||
| NMRV30 | 63B5 | 95 | 115 | 140 | 4 | 11 | – | 0.06-0.18 | 7.5-80 | 2.6-14 | ||||||||||
| 63B14 | 60 | 75 | 90 | |||||||||||||||||
| 56B5 | 80 | 100 | 120 | 3 | 9 | – | ||||||||||||||
| 56B14 | 50 | 65 | 80 | |||||||||||||||||
| NMRV40 | 71B5 | 110 | 130 | 160 | 5 | 14 | – | 0.09-0.37 | 7.5-100 | 11-53 | ||||||||||
| 71B14 | 70 | 85 | 105 | |||||||||||||||||
| 63B5 | 95 | 115 | 140 | 4 | 11 | |||||||||||||||
| 63B14 | 60 | 75 | 90 | |||||||||||||||||
| 56B5 | 80 | 100 | 120 | 3 | – | 9 | ||||||||||||||
| NMRV50 | 80B5 | 130 | 165 | 200 | 6 | 19 | – | 0.12-0.75 | 7.5-100 | 21-89 | ||||||||||
| 80B14 | 80 | 100 | 120 | |||||||||||||||||
| 71B5 | 110 | 130 | 160 | 5 | 14 | – | ||||||||||||||
| 71B14 | 70 | 85 | 105 | |||||||||||||||||
| 63B5 | 95 | 115 | 140 | 4 | – | 11 | ||||||||||||||
| NMRV63 | 90B5 | 130 | 165 | 200 | 8 | 24 | – | 0.25-1.5 | 7.5-100 | 56-166 | ||||||||||
| 90B14 | 95 | 115 | 140 | |||||||||||||||||
| 80B5 | 130 | 165 | 200 | 6 | 19 | – | ||||||||||||||
| 80B14 | 80 | 100 | 120 | |||||||||||||||||
| 71B5 | 110 | 130 | 160 | 5 | – | 14 | ||||||||||||||
| 71B14 | 70 | 85 | 105 | |||||||||||||||||
| NMRV75 | 100/112B5 | 180 | 215 | 250 | 8 | – | 28 | – | 0.55-4 | 7.5-100 | 90-269 | |||||||||
| 100/112B14 | 110 | 130 | 160 | |||||||||||||||||
| 90B5 | 130 | 165 | 200 | 8 | 24 | – | ||||||||||||||
| 90B14 | 95 | 115 | 140 | |||||||||||||||||
| 80B5 | 130 | 165 | 200 | 6 | – | 19 | ||||||||||||||
| 80B14 | 80 | 100 | 120 | |||||||||||||||||
| 71B5 | 110 | 130 | 160 | – | – | 14 | ||||||||||||||
| NMRV90 | 100/112B5 | 180 | 215 | 250 | 8 | – | 28 | – | 0.55-4 | 7.5-100 | 101-458 | |||||||||
| 100/112B14 | 110 | 130 | 160 | |||||||||||||||||
| 90B5 | 130 | 165 | 200 | 8 | 24 | – | ||||||||||||||
| 90B14 | 95 | 115 | 140 | |||||||||||||||||
| 80B5 | 130 | 165 | 200 | 6 | – | 19 | ||||||||||||||
| 80B14 | 80 | 100 | 120 | |||||||||||||||||
| NMRV110 | 132B5 | 230 | 265 | 300 | 10 | – | 38 | – | 1.1-7.5 | 7.5-100 | 242-660 | |||||||||
| 132B14 | 130 | 165 | 200 | – | ||||||||||||||||
| 100/112B5 | 180 | 215 | 250 | 8 | 28 | – | ||||||||||||||
| 90B5 | 130 | 165 | 200 | – | 24 | |||||||||||||||
| 90B14 | 95 | 115 | 140 | – | ||||||||||||||||
| 80B5 | 130 | 165 | 200 | – | 19 | |||||||||||||||
| NMRV130 | 132B5 | 230 | 265 | 300 | 10 | – | 38 | – | 2.2-7.5 | 7.5-100 | 333-1596 | |||||||||
| 132B14 | 130 | 165 | 200 | – | ||||||||||||||||
| 100/112B5 | 180 | 215 | 250 | 8 | – | 28 | ||||||||||||||
| 90B5 | 130 | 165 | 200 | – | – | 24 | ||||||||||||||
| 90B14 | 95 | 115 | 140 | |||||||||||||||||
| NMRV150 | 160B5 | 250 | 300 | 350 | 12 | – | 42 | – | 2.2-15 | 7.5-100 | 570-1760 | |||||||||
| 132B5 | 230 | 265 | 300 | 10 | – | 38 | – | |||||||||||||
| 132B14 | 130 | 165 | 200 | – | ||||||||||||||||
| 100/112B5 | 180 | 215 | 250 | 8 | – | 28 | ||||||||||||||
Company profile
Scenario
Packing
FAQ
Q1: I want to buy your products, how can I pay?
A: You can pay via T/T(30%+70%), L/C ,D/P etc.
Q2: How can you guarantee the quality?
A: One year’s warranty against B/L date. If you meet with quality problem, please send us pictures or video to check, we promise to send spare parts or new products to replace. Our guarantee not include inappropriate operation or wrong specification selection.
Q3: How we select models and specifications?
A: You can email us the series code (for example: RC series helical gearbox) as well as requirement details, such as motor power,output speed or ratio, service factor or your application…as much data as possible. If you can supply some pictures or drawings,it is nice.
Q4: If we don’t find what we want on your website, what should we do?
A: We offer 3 options:
1, You can email us the pictures, drawings or descriptions details. We will try to design your products on the basis of our
standard models.
2, Our R&D department is professional for OEM/ODM products by drawing/samples, you can send us samples, we do customized design for your bulk purchasing.
3, We can develop new products if they have good market. We have already developed many items for special using successful, such as special gearbox for agitator, cement conveyor, shoes machines and so on.
Q5: Can we buy 1 pc of each item for quality testing?
A: Yes, we are glad to accept trial order for quality testing.
Q6: How about your product delivery time?
A: Normally for 20’container, it takes 25-30 workdays for RV series worm gearbox, 35-40 workdays for helical gearmotors.
| Application: | Motor, Machinery, Agricultural Machinery |
|---|---|
| Dureté: | Surface dentaire durcie |
| Installation: | B3, B6, B7, B8, V5, V6 |
| Mise en page: | Coaxial |
| Forme de l'engrenage : | Cylindrical Gear |
| Étape: | Single-Step |
| Personnalisation : | Disponible | Demande personnalisée |
|---|
Is it Possible to Reverse the Direction of a Worm Gearbox?
Yes, it is possible to reverse the direction of a worm gearbox by changing the orientation of either the input or output shaft. However, reversing the direction of a worm gearbox can have some implications that need to be considered:
- Efficiency: Reversing the direction of a worm gearbox can potentially affect its efficiency. Worm gearboxes are typically more efficient in one direction of rotation due to the design of the worm and worm wheel.
- Backlash: Reversing the direction of rotation might lead to increased backlash or play in the gearbox, which can impact precision and smooth operation.
- Lubrification: Depending on the gearbox’s design, reversing the direction could affect lubrication distribution and lead to uneven wear on the gear teeth.
- Load: Reversing the direction might also impact the gearbox’s load-carrying capacity, especially if it’s designed for predominantly one-way operation.
- Noise and Vibration: Direction reversal can sometimes result in increased noise and vibration due to changes in gear engagement and meshing behavior.
If you need to reverse the direction of a worm gearbox, it’s advisable to consult the gearbox manufacturer’s guidelines and recommendations. They can provide insights into whether the specific gearbox model is suitable for reversible operation and any precautions or adjustments needed to ensure proper functioning.
Energy Efficiency of a Worm Gearbox: What to Expect
The energy efficiency of a worm gearbox is an important factor to consider when evaluating its performance. Here’s what you can expect in terms of energy efficiency:
- Typical Efficiency Range: Worm gearboxes are known for their compact size and high gear reduction capabilities, but they can exhibit lower energy efficiency compared to other types of gearboxes. The efficiency of a worm gearbox typically falls in the range of 50% to 90%, depending on various factors such as design, manufacturing quality, lubrication, and load conditions.
- Inherent Losses: Worm gearboxes inherently involve sliding contact between the worm and worm wheel. This sliding contact generates friction, leading to energy losses in the form of heat. The sliding action also contributes to lower efficiency when compared to gearboxes with rolling contact.
- Helical-Worm Design: Some manufacturers offer helical-worm gearbox designs that combine elements of helical and worm gearing. These designs aim to improve efficiency by incorporating helical gears in the reduction stage, which can lead to higher efficiency compared to traditional worm gearboxes.
- Lubrification: Proper lubrication plays a significant role in minimizing friction and improving energy efficiency. Using high-quality lubricants and ensuring the gearbox is adequately lubricated can help reduce losses due to friction.
- Application Considerations: While worm gearboxes might have lower energy efficiency compared to other types of gearboxes, they still offer advantages in terms of compactness, high torque transmission, and simplicity. Therefore, the decision to use a worm gearbox should consider the specific requirements of the application, including the trade-off between energy efficiency and other performance factors.
When selecting a worm gearbox, it’s essential to consider the trade-offs between energy efficiency, torque transmission, gearbox size, and the specific needs of the application. Regular maintenance, proper lubrication, and selecting a well-designed gearbox can contribute to achieving the best possible energy efficiency within the limitations of worm gearbox technology.
Qu'est-ce qu'une boîte de vitesses à vis sans fin et comment fonctionne-t-elle ?
Un réducteur à vis sans fin, également appelé réducteur à engrenages à vis sans fin, est un dispositif mécanique permettant de transmettre un mouvement de rotation et un couple entre des arbres non parallèles. Il se compose d'une vis sans fin et d'une roue dentée, toutes deux à denture hélicoïdale. La vis sans fin ressemble à un cylindre fileté, tandis que la roue dentée s'engrène avec la vis sans fin.
Le principe de fonctionnement d'un réducteur à vis sans fin repose sur l'interaction entre la vis sans fin et la roue dentée. Lorsque la vis sans fin tourne, ses dents hélicoïdales s'engrènent avec celles de la roue dentée. La rotation de la vis sans fin transforme ce mouvement en un mouvement perpendiculaire, entraînant la rotation de la roue dentée. Ce mouvement perpendiculaire permet au réducteur à vis sans fin d'atteindre un rapport de réduction élevé, le rendant ainsi adapté aux applications nécessitant une réduction de vitesse importante.
L'un des principaux atouts d'un réducteur à vis sans fin réside dans sa capacité à offrir un rapport de réduction élevé dans un format compact. Cependant, du fait du glissement des dents en prise, ce type de réducteur peut présenter un frottement plus important et un rendement inférieur à celui d'autres types de réducteurs. C'est pourquoi il est souvent utilisé dans des applications où le rendement n'est pas primordial, mais où un couple élevé et une réduction de vitesse sont essentiels, comme les systèmes de convoyage, les ascenseurs, les systèmes de direction automobile et certaines machines industrielles.
editor by CX 2023-10-08