Product Description
High Torque NEMA34 Stepper Motor Helical Transmission Planetary Gearboxes
Planetary gearbox is a kind of reducer with wide versatility. The inner gear adopts low carbon alloy steel carburizing quenching and grinding or nitriding process. Planetary gearbox has the characteristics of small structure size, large output torque, high speed ratio, high efficiency, safe and reliable performance, etc. The inner gear of the planetary gearbox can be divided into spur gear and helical gear. Customers can choose the right precision reducer according to the needs of the application.
Product Description
Characteristics:
1. Split design, more output options
2. The input and output dimensions can be seamlessly switched with the straight tooth series
3. The double support cage planet carrier has high reliability and is suitable for high-speed and frequent CZPT and reverse rotation
4. The design of double-stage single support support has high cost performance
5. Keyway can be opened for the force shaft
6. Helical gear transmission is more stable and has large bearing capacity
7. Accurate positioning of low return clearance
8. Specification range: 60-120mm
9. Speed ratio range: 3-100
10. Accuracy range: 1-3 arcmin (P1); 3-5 arcmin (P2)
Specifications | PW60 | PW90 | PW120 | |||
Technal Parameters | ||||||
Max. Torque | Nm | 1.5times rated torque | ||||
Emergency Stop Torque | Nm | 2.5times rated torque | ||||
Max. Radial Load | N | 1350 | 3100 | 6100 | ||
Max. Axial Load | N | 630 | 1300 | 2800 | ||
Torsional Rigidity | Nm/arcmin | 5 | 10 | 20 | ||
Max.Input Speed | rpm | 6000 | 6000 | 6000 | ||
Rated Input Speed | rpm | 4000 | 3000 | 3000 | ||
Noise | dB | ≤58 | ≤60 | ≤65 | ||
Average Life Time | h | 20000 | ||||
Efficiency Of Full Load | % | L1≥95% L2≥90% | ||||
Return Backlash | P1 | L1 | arcmin | ≤3 | ≤3 | ≤3 |
L2 | arcmin | ≤5 | ≤5 | ≤5 | ||
P2 | L1 | arcmin | ≤5 | ≤5 | ≤5 | |
L2 | arcmin | ≤7 | ≤7 | ≤7 | ||
Moment Of Inertia Table | L1 | 3 | Kg*cm2 | 0.16 | 0.61 | 3.25 |
4 | Kg*cm2 | 0.14 | 0.48 | 2.74 | ||
5 | Kg*cm2 | 0.13 | 0.47 | 2.71 | ||
7 | Kg*cm2 | 0.13 | 0.45 | 2.62 | ||
8 | Kg*cm2 | 0.13 | 0.45 | 2.62 | ||
10 | Kg*cm2 | 0.13 | 0.40 | 2.57 | ||
L2 | 12 | Kg*cm2 | 0.13 | 0.61 | 0.45 | |
15 | Kg*cm2 | 0.13 | 0.61 | 0.45 | ||
20 | Kg*cm2 | 0.13 | 0.45 | 0.45 | ||
25 | Kg*cm2 | 0.13 | 0.40 | 0.40 | ||
28 | Kg*cm2 | 0.13 | 0.45 | 0.45 | ||
30 | Kg*cm2 | 0.13 | 0.67 | 0.45 | ||
35 | Kg*cm2 | 0.13 | 0.45 | 0.45 | ||
40 | Kg*cm2 | 0.13 | 0.45 | 0.45 | ||
50 | Kg*cm2 | 0.13 | 0.40 | 0.40 | ||
70 | Kg*cm2 | 0.13 | 0.40 | 0.40 | ||
100 | Kg*cm2 | 0.13 | 0.40 | 0.40 | ||
Technical Parameter | Level | Ratio | PW60 | PW90 | PW120 | |
Rated Torque | L1 | 3 | Nm | 35 | 100 | 165 |
4 | Nm | 43 | 125 | 220 | ||
5 | Nm | 43 | 125 | 220 | ||
7 | Nm | 40 | 98 | 200 | ||
8 | Nm | 40 | 90 | 200 | ||
10 | Nm | 25 | 70 | 150 | ||
L2 | 12 | Nm | 35 | / | 165 | |
15 | Nm | 35 | 100 | 165 | ||
20 | Nm | 43 | 125 | 220 | ||
25 | Nm | 43 | 125 | 220 | ||
28 | Nm | 43 | 125 | 220 | ||
30 | Nm | 35 | 100 | 165 | ||
35 | Nm | 43 | 125 | 210 | ||
40 | Nm | 43 | 125 | 210 | ||
50 | Nm | 43 | 125 | 210 | ||
70 | Nm | 40 | 98 | 200 | ||
100 | Nm | 25 | 70 | 150 | ||
Degree Of Protection | IP65 | |||||
Operation Temprature | ºC | – 10ºC to -90ºC | ||||
Weight | L1 | kg | 1.2 | 2.8 | 7.6 | |
L2 | kg | 1.55 | 3.95 | 10.5 |
Company Profile
Packaging & Shipping
1. Lead time: 7-10 working days as usual, 20 working days in busy season, it will be based on the detailed order quantity;
2. Delivery: DHL/ UPS/ FEDEX/ EMS/ TNT
FAQ
1. who are we?
Hefa Group is based in ZheJiang , China, start from 1998,has a 3 subsidiaries in total.The Main Products is planetary gearbox,timing belt pulley, helical gear,spur gear,gear rack,gear ring,chain wheel,hollow rotating platform,module,etc
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3. how to choose the suitable planetary gearbox?
First of all,we need you to be able to provide relevant parameters.If you have a motor drawing,it will let us recommend a suitable gearbox for you faster.If not,we hope you can provide the following motor parameters:output speed,output torque,voltage,current,ip,noise,operating conditions,motor size and power,etc
4. why should you buy from us not from other suppliers?
We are 22 years experiences manufacturer on making the gears, specializing in manufacturing all kinds of spur/bevel/helical gear, grinding gear, gear shaft, timing pulley, rack, planetary gear reducer, timing belt and such transmission gear parts
5. what services can we provide?
Accepted Delivery Terms: Fedex,DHL,UPS;
Accepted Payment Currency:USD,EUR,HKD,GBP,CNY;
Accepted Payment Type: T/T,L/C,PayPal,Western Union;
Language Spoken:English,Chinese,Japanese
Application: | Motor, Motorcycle, Machinery, Marine, Agricultural Machinery, Packaging Machinery |
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Function: | Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction |
Layout: | Coaxial |
Hardness: | Hardened Tooth Surface |
Installation: | Vertical Type |
Step: | Single-Step |
Samples: |
US$ 185/Piece
1 Piece(Min.Order) | |
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Customization: |
Available
| Customized Request |
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Role of Helical Gearboxes in Automotive Transmissions
Helical gearboxes play a crucial role in automotive transmissions, contributing to the efficient power transfer and smooth operation of vehicles:
- Power Transmission: Helical gearboxes are used to transmit power from the engine to the wheels through different gear ratios. They help in converting the high-speed, low-torque output of the engine into the appropriate speed and torque for the wheels.
- Smooth Shifting: In manual and automatic transmissions, helical gears are often used to provide smooth and quiet gear shifts. The gradual engagement of helical gear teeth helps in reducing the shock and noise associated with gear changes.
- Noise Reduction: Helical gears are known for their quieter operation compared to other gear types. This is especially important in automotive applications where minimizing noise and vibration is desired for a comfortable driving experience.
- Efficiency: The efficiency of helical gearboxes helps in optimizing fuel efficiency and reducing energy losses. This is crucial for improving the overall performance and economy of vehicles.
- Load Distribution: Helical gears distribute the load over multiple teeth, reducing wear and ensuring the gearbox’s longevity. This is important in vehicles that experience varying loads and driving conditions.
- Torque Handling: Helical gears can handle higher torque loads compared to some other gear types. This is essential for vehicles, especially those with powerful engines, towing capabilities, or off-road use.
In modern automotive transmissions, helical gearboxes can be found in various components, including the main transmission, differential, and gearbox synchronizers. They contribute to the smooth operation, improved fuel efficiency, and overall performance of vehicles. The design and arrangement of helical gears can be tailored to meet the specific requirements of different vehicle types, making them a versatile choice for automotive applications.
Handling Shock Loads and Sudden Changes in Torque in Helical Gearboxes
Helical gearboxes are designed to handle a range of operational conditions, including shock loads and sudden changes in torque. The helical design of the gears, which have slanted teeth that engage gradually, helps to distribute forces more evenly across the teeth compared to straight-cut gears. This design characteristic contributes to the gearbox’s ability to withstand sudden changes in torque and shock loads.
The gradual engagement of the helical teeth results in smoother and quieter operation, reducing the impact of abrupt torque changes. The slanted teeth also allow for more gradual transmission of force, which helps in dampening vibrations and minimizing stress concentrations that can occur in high-impact situations.
However, while helical gears are better suited for shock loads compared to straight-cut gears, it’s important to note that extreme shock loads or sudden torque changes can still impact the gearbox’s components over time. Manufacturers often take factors such as application requirements, load profiles, and anticipated shock loads into consideration when designing helical gearboxes to ensure reliable and durable performance.
Additionally, using appropriate lubrication and maintenance practices can further enhance the gearbox’s ability to handle shock loads and sudden torque changes. Regular inspection and timely maintenance help identify and address potential issues before they lead to component failure.
Lubrication Requirements for Maintaining Helical Gearboxes
Lubrication is essential for the proper functioning and longevity of helical gearboxes. The lubrication requirements include:
- Viscosity: Selecting a lubricant with the appropriate viscosity is crucial. The viscosity should provide sufficient lubrication and ensure a protective film between gear teeth under varying operating conditions.
- Extreme Pressure (EP) Properties: Helical gears often experience high contact pressures. Lubricants with EP additives form a protective barrier that prevents metal-to-metal contact and reduces wear.
- Oil Additives: Anti-wear additives, antioxidants, and corrosion inhibitors enhance the lubricant’s performance and protect gears from wear and degradation.
- Frequent Inspections: Regularly inspect the lubricant’s condition to detect contamination, degradation, or depletion. Scheduled oil analysis can help monitor the health of the lubricant.
- Proper Lubricant Application: Ensure the gearbox is properly filled with the correct amount of lubricant. Follow manufacturer recommendations for lubricant type and quantity.
- Lubricant Change Intervals: Establish regular lubricant change intervals based on operating conditions. Extreme conditions or heavy loads may require more frequent changes.
Appropriate lubrication minimizes friction, wear, and heat generation, leading to improved efficiency, reduced maintenance, and extended gearbox life. It’s crucial to follow the manufacturer’s guidelines and consult with lubrication experts to select the right lubricant and maintenance practices for your specific helical gearbox application.
editor by CX 2023-09-25