Product Description
Product Parameters
| product name | Customized High Quality Stainless Spur Gear for New Energy Automobile Industry Motor, Electric Cars With ISO9001 |
| material | stainless steel , iron , aluminum ,bronze ,carbon steel ,brass , nylon etc . |
| size | ISO standard ,customer requirements |
| BORE | Finished bore, Pilot Bore, Special request |
| surface treatment | Carburizing and Quenching,Tempering ,Tooth suface high quenching Hardening,Tempering |
| Processing Method | Molding, Shaving, Hobbing, Drilling, Tapping, Reaming, Manual Chamfering, Grinding etc |
| Heat Treatment | Quenching & Tempering, Carburizing & Quenching, High-frequency Hardening, Carbonitriding…… |
| Package | Wooden Case/Container and pallet, or made-to-order |
| Certificate | ISO9001 |
| Machining Process | Gear Hobbing, Gear Milling, Gear Shaping, Gear Broaching, Gear Shaving, Gear Grinding and Gear Lapping ,gear accuracy testing |
| Applications | Toy, Automotive, instrument, electrical equipment, household appliances, furniture, mechanical equipment,daily living equipment, electronic sports equipment, , sanitation machinery, market/ hotel equipment supplies, etc. |
| Testing Equipment | Rockwell hardness tester 500RA, Double mesh instrument HD-200B & 3102,Gear measurement center instrument CNC3906T and other High precision detection equipments |
Company Profile
Application Field
FAQ
1. why should you buy products from us not from other suppliers?
We are a 32 year-experience manufacturer on making the gear, specializing in manufacturing varieties of gears, such as helical gear ,bevel gear ,spur gear and grinding gear, gear shaft, timing pulley, rack, , timing pulley and other transmission parts .
2. 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
3. how can we guarantee quality?
1 .Always a pre-production sample before mass production;
2 .Always final Inspection before shipment;
3 .We have high-precision CNC gear grinding machine, high-speed CNC gear hobbing machine, CNC gear shaping machine, CNC lathe, CNC machining center, various grinding machines, universal gear measuring instrument, heat treatment and other advanced processing equipment.
4 . We have a group of experienced technical workers, more than 90% of the workers have more than 10 years of work experience in this factory, can accurately control the manufacturing of products and customer needs. We regularly train our employees to ensure that we can produce high-precision and high-quality products that are more in line with our customers’ needs.
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| Application: | Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car |
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| Hardness: | Hardened Tooth Surface |
| Gear Position: | External Gear |
| Samples: |
US$ 5/Piece
1 Piece(Min.Order) | Order Sample |
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| Customization: |
Available
| Customized Request |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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How do modern vehicles use electronic controls to optimize gear shifts?
Modern vehicles utilize electronic controls to optimize gear shifts and enhance the overall performance and efficiency of the transmission system. Here’s a detailed explanation:
1. Transmission Control Module (TCM):
Modern vehicles are equipped with a Transmission Control Module (TCM), which is a dedicated electronic control unit responsible for managing the operation of the transmission system. The TCM receives input from various sensors throughout the vehicle to monitor parameters such as vehicle speed, engine load, throttle position, and driver input.
2. Adaptive Transmission Systems:
Many modern vehicles employ adaptive transmission systems that continuously analyze the driving conditions and adjust the gear shifts accordingly. These systems use complex algorithms and sensor data to optimize gear selection based on factors such as throttle input, road gradient, vehicle speed, and load conditions.
3. Shift Mapping:
Electronic controls allow manufacturers to program specific shift maps or algorithms that determine the timing and characteristics of gear shifts. These shift maps take into account various factors such as engine RPM, vehicle speed, and driver demand. By customizing the shift mapping, manufacturers can optimize gear shifts for different driving scenarios, such as economy, sporty driving, or towing.
4. Shift-by-Wire Technology:
Shift-by-wire technology is increasingly being used in modern vehicles, especially those with automatic transmissions. In this system, the gear selection is electronically controlled rather than mechanically linked to the gear lever. It allows for more precise and responsive gear shifts, as well as additional features such as paddle shifters or manual shift modes.
5. Dual-Clutch Transmissions (DCT):
Dual-Clutch Transmissions (DCT) are becoming popular in modern vehicles due to their ability to provide quick and seamless gear shifts. DCTs use electronically controlled clutches to preselect gears, allowing for almost instantaneous shifts without interrupting power delivery. Electronic controls play a crucial role in managing the precise timing and coordination of clutch engagement and gear changes in DCTs.
6. Continuously Variable Transmissions (CVT):
Continuously Variable Transmissions (CVT) rely heavily on electronic controls to optimize gear ratios for maximum fuel efficiency and performance. CVTs use a system of pulleys and belts or chains to provide an infinite number of gear ratios. The TCM continuously adjusts the pulley positions based on sensor inputs to maintain the most suitable gear ratio for the driving conditions.
7. Over-the-Air Updates:
With the advancement of connected car technology, some modern vehicles can receive over-the-air updates to their electronic control systems. These updates can include refinements to the shift algorithms, allowing manufacturers to improve the performance, efficiency, and responsiveness of the transmission system even after the vehicle has been purchased.
Overall, electronic controls have revolutionized the way gear shifts are optimized in modern vehicles. By utilizing advanced sensors, algorithms, and electronic control units, manufacturers can deliver smoother, more efficient, and responsive gear shifts tailored to various driving conditions and preferences.
What is a continuously variable transmission (CVT) and how does it work in cars?
A continuously variable transmission (CVT) is a type of automatic transmission that provides an infinite number of gear ratios within a specific range. Here’s a detailed explanation of how it works:
In a traditional transmission, gears of different sizes are used to achieve different gear ratios. These gears have fixed ratios, and the transmission shifts between them to adjust the speed and torque output. In contrast, a CVT uses a different mechanism to vary the gear ratios.
1. Pulleys and Belt/Chain System:
A CVT consists of two pulleys connected by a metal belt or a chain. Each pulley has two halves that can move closer together or farther apart. One pulley is connected to the engine, and the other is connected to the wheels.
2. Variable Pulley Diameter:
The pulleys in a CVT have variable diameters. As the pulley halves move closer together, the effective diameter decreases, and as they move farther apart, the effective diameter increases. This adjustment of the pulley diameters allows for continuous variation of the gear ratio.
3. Belt/Chain Movement:
The metal belt or chain runs between the two pulleys. When the effective diameter of one pulley decreases, the belt or chain moves towards the larger diameter on the other pulley. As a result, the contact point on the pulleys changes, altering the effective gear ratio.
4. Hydraulic or Electronic Control:
To control the movement of the pulleys, a CVT uses a hydraulic or electronic control system. This system monitors various factors, such as vehicle speed, engine load, throttle input, and acceleration demands, to determine the optimal gear ratio. It then adjusts the position of the pulley halves accordingly.
5. Seamless Gear Ratio Changes:
Due to the continuous variation of the pulley diameters, a CVT provides seamless gear ratio changes. It can continuously adjust the gear ratio to keep the engine operating at its most efficient RPM for a given driving condition. This flexibility allows the engine to deliver power more effectively and improves fuel efficiency.
6. “Step” or “Shift” Modes:
Some CVTs offer “step” or “shift” modes to simulate traditional gear shifting. In these modes, the CVT may have predefined ratios or “virtual” gears that mimic the feel of gear changes. This can provide a more familiar driving experience for those accustomed to traditional automatic transmissions.
CVTs are known for their smoothness and fuel efficiency. By continuously adjusting the gear ratio to match the engine’s power output and the driving conditions, a CVT helps optimize fuel consumption. They are commonly found in smaller vehicles and hybrid cars.
However, it’s worth noting that CVTs may have a different driving feel compared to traditional transmissions, as the engine RPM can remain relatively constant during acceleration. Some drivers may prefer the stepped gear changes of conventional transmissions for a more engaging driving experience.
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How does an automatic transmission differ from a manual transmission?
An automatic transmission and a manual transmission differ in several ways. Here’s a detailed explanation:
1. Gear Shifting:
In a manual transmission, the driver manually operates the clutch pedal and gearshift lever to engage and disengage gears and select the appropriate gear ratio. This requires coordination between the clutch, accelerator, and gearshift movements.
On the other hand, an automatic transmission shifts gears automatically without driver intervention. It uses a torque converter or a dual-clutch system to smoothly transition between gears based on factors such as vehicle speed, engine load, and throttle input. The driver only needs to select the driving mode (e.g., “Drive,” “Sport,” or “Economy”) and control the accelerator and brake pedals.
2. Clutch Operation:
In a manual transmission, the clutch pedal is used to engage or disengage the engine from the transmission. When changing gears, the driver depresses the clutch pedal, which temporarily disconnects the engine’s power from the transmission. This allows for smooth gear engagement and disengagement.
In an automatic transmission, there is no clutch pedal. Instead, it uses a torque converter or a dual-clutch system to transmit power from the engine to the transmission. These systems automatically manage the power transfer and eliminate the need for manual clutch operation.
3. Driver Involvement:
A manual transmission requires more driver involvement and skill. The driver must actively engage the clutch pedal, shift gears, and match engine RPMs to achieve smooth gear changes. This level of control can be preferred by enthusiasts who enjoy the engagement and control over the vehicle’s performance.
An automatic transmission offers a more relaxed driving experience as it shifts gears automatically. The driver can focus on steering, acceleration, and braking without the need to manually operate the clutch or shift gears. This convenience is especially beneficial in heavy traffic or during long-distance drives.
4. Fuel Efficiency:
In the past, manual transmissions were generally more fuel-efficient than automatic transmissions. This was because the driver had more control over gear selection and could optimize engine RPMs for better fuel economy. However, advancements in automatic transmission technology, such as the introduction of continuously variable transmissions (CVTs) and improved gearshift algorithms, have narrowed the fuel efficiency gap between manual and automatic transmissions.
Modern automatic transmissions often incorporate features like multiple gears, adaptive shift patterns, and torque converter lock-up for improved fuel efficiency. Some automatic transmissions even offer manual shift modes or paddle shifters, allowing the driver to manually select gears when desired.
5. Market Availability:
Manual transmissions are less common in certain regions, such as North America, where automatic transmissions dominate the market. Automatic transmissions are widely available and come as standard or optional equipment in most vehicles. Manual transmissions are more prevalent in certain markets, such as Europe, where they are preferred by a significant portion of drivers.
Overall, the main differences between automatic and manual transmissions lie in the gear-shifting mechanism, clutch operation, driver involvement, fuel efficiency, and market availability. The choice between the two depends on individual preferences, driving conditions, and the desired level of control and convenience.
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editor by Dream 2024-04-22