Product Description
XIHU (WEST LAKE) DIS.HUA Chain Group is the most professional manufacturer of power transmission in China, manufacturing roller chains, industry sprockets, motorcycle sprockets, casting sprockets, different type of couplings, pulleys, taper bushes, locking devices, gears, shafts, CNC precision parts and so on.
We adopt good quality raw material and strict with DIN, ANSI, JIS standard ect, We have professional quality conrol team, complet equipment, advanaced technology. In 1999, Xihu (West Lake) Dis.hua obtained ISO9001 Certificate of Quality Assurance System, besides, the company also devotes itselt o environmental protection, In2002, it also obtained ISO14001 Certificate of Environment Management System.
PRODUCT DESCRIPITION:
Reverse Gear of Automobile Gear-box
Custom-made gear
Gear used in gearbox
Gear with heat treatment
Material: 20CrMnTi, 40Cr, 8620H
Module: 2.0—5.0
Teeth quantity: 30—50
Pressure angle: 20 degree—30 degree
Spiral angle: No
O. D: 64mm—260mm
Length(max): 50
Product name | Reverse Gear of Automobile Gear-box |
Materials Available | 1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420 |
2. Steel:C45(K1045), C46(K1046),C20 | |
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40) | |
4. Bronze: C51000, C52100, C54400, etc | |
5. Iron: 1213, 12L14,1215 | |
6. Aluminum: Al6061, Al6063 | |
7.OEM according to your request | |
Surface Treatment | Annealing, natural anodization, heat treatment, polishing, nickel plating, chrome plating, znic plating,yellow passivation, gold passivation, satin, Black surface painted etc. |
Products Available | sprockt chains, pulley, shafts(axles, spline shafts, dart shafts),gears (pinions, wheels gear rack) bearing, bearing seat, bushing, coupling, lock assembly etc. |
Processing Method | CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly |
QC : | Technicians self-check in production,final-check before package by professional Quality inspector |
Size | Drawings |
Package | Wooden Case/Container and pallet, or as per customized specifications |
Certificate | ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009 |
Advantage | Quality first Service superior , Advanced equipment,Experienced workers,Perfect testing equipment |
Lead Time | 15-25days samples. 30-45days offcial order |
Condition: | New |
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Axle Number: | 2 |
Application: | Car |
Material: | Iron |
Type: | Gearbox |
Legnth: | Max 110 |
Customization: |
Available
| Customized Request |
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Can you explain the process of shifting gears smoothly in a manual car?
Shifting gears smoothly in a manual car is a skill that requires coordination and practice. Here’s a detailed explanation of the process:
1. Clutch Operation:
Before shifting gears, it’s essential to understand the operation of the clutch pedal. The clutch is used to temporarily disconnect the engine’s power from the transmission, allowing smooth gear engagement. To shift gears smoothly:
- Press the clutch pedal fully to disengage the clutch.
- Keep the clutch pedal depressed throughout the shifting process.
2. Throttle Control:
While shifting gears, it’s important to synchronize the engine speed (RPM) with the speed of the transmission. Here’s how to manage the throttle:
- Gradually release the accelerator pedal as you prepare to shift.
- Avoid abruptly lifting off the throttle, as it can cause a sudden drop in engine RPM.
3. Shifting Process:
Once the clutch is fully depressed, and the throttle is appropriately controlled, follow these steps to shift gears smoothly:
- Move the gear lever to the desired gear position while keeping the clutch pedal depressed.
- Avoid applying excessive force or rushing the gear lever movement.
- Wait for a brief moment after moving the gear lever to allow the gears to synchronize.
4. Releasing the Clutch:
After the gear lever is in the new position, smoothly release the clutch pedal while simultaneously modulating the throttle. Here’s how to do it:
- Gradually release the clutch pedal while applying gentle pressure on the accelerator pedal.
- Coordinate the release of the clutch with the increase in engine RPM.
- Avoid releasing the clutch too quickly or abruptly, as it can cause jerky gear engagement or stalling.
5. Practice and Smooth Transitions:
Smooth gear shifting requires practice and familiarity with the specific vehicle’s clutch and gearbox characteristics. Consider the following tips for achieving smooth transitions:
- Practice shifting gears in an open area with minimal traffic until you become comfortable.
- Develop a feel for the clutch engagement point, which is the position where the clutch starts to transmit power.
- Anticipate the need for gear changes by observing the engine RPM and road conditions.
- During upshifting, aim to shift gears when the engine RPM reaches a moderate level, typically between 2,000 and 3,000 RPM.
- During downshifting, match the engine RPM to the lower gear’s appropriate range to ensure smooth engagement.
Remember, mastering smooth gear shifting requires practice, coordination, and a good understanding of your vehicle’s clutch and gearbox. With time and experience, you’ll be able to shift gears seamlessly and enjoy a smoother driving experience.
Can you explain the concept of downshifting and upshifting in an automobile?
Downshifting and upshifting are fundamental concepts in operating a manual transmission vehicle. Here’s a detailed explanation:
1. Upshifting:
Upshifting refers to the process of shifting to a higher gear while driving. It involves moving the gear lever from a lower-numbered gear to a higher-numbered gear. The purpose of upshifting is to increase the vehicle’s speed while maintaining fuel efficiency and reducing engine RPM. Upshifting is typically done as the engine reaches its optimal RPM range or when the vehicle has gained sufficient speed in the current gear.
2. Downshifting:
Downshifting is the opposite of upshifting and involves shifting to a lower gear. It requires moving the gear lever from a higher-numbered gear to a lower-numbered gear. Downshifting is used to decrease the vehicle’s speed, increase engine RPM, and provide more power when needed, such as during overtaking, ascending steep hills, or slowing down. It allows the engine to operate at a higher RPM range, providing better acceleration and engine braking.
3. Rev Matching:
When downshifting, an important technique called “rev matching” is often employed. Rev matching involves synchronizing the engine speed (RPM) with the rotational speed of the transmission and wheels for a smooth gear engagement. By blipping the throttle or “heel-and-toe” technique, the driver matches the engine RPM to the desired speed in the lower gear before engaging the clutch and shifting down. Rev matching minimizes drivetrain shock, reduces wear on the clutch, and ensures a seamless transition between gears.
4. Benefits of Downshifting:
Downshifting offers several benefits, including:
- Improved acceleration: Downshifting to a lower gear provides more power and torque, allowing for quicker acceleration when needed.
- Engine braking: By downshifting and utilizing engine braking, drivers can slow down the vehicle without relying solely on the brakes. This can help maintain control, reduce brake wear, and prevent overheating of the braking system on long descents.
- Responsive driving: Downshifting allows drivers to have better control over the vehicle’s speed and responsiveness, especially in situations where immediate power is required.
5. Automatic Transmissions:
While the concept of upshifting and downshifting primarily applies to manual transmissions, modern automatic transmissions also incorporate similar principles. Automatic transmissions automatically shift gears based on factors such as vehicle speed, engine load, and driver input. They can upshift and downshift to optimize fuel efficiency, provide smooth acceleration, and deliver appropriate power based on driving conditions.
In summary, upshifting involves shifting to a higher gear to increase speed and maintain fuel efficiency, while downshifting involves shifting to a lower gear to decrease speed, increase power, and utilize engine braking. Downshifting offers benefits such as improved acceleration, engine braking, and responsive driving. Understanding the concept of shifting gears is essential for manual transmission operation and can enhance the driving experience and control over the vehicle.
Can you explain the role of gear ratios in an automobile transmission?
Gear ratios play a crucial role in an automobile transmission. Here’s a detailed explanation:
In an automobile transmission, the gear ratio refers to the ratio of the rotational speed of the engine’s input shaft to the rotational speed of the transmission output shaft, which is connected to the wheels. Different gear ratios are achieved by using gears of varying sizes.
1. Speed and Torque Conversion: The primary function of gear ratios is to convert the engine’s high rotational speed and low torque into lower rotational speed and higher torque at the wheels. Lower gear ratios (such as first or second gear) provide high torque multiplication, which is useful for starting the vehicle or climbing steep hills. Higher gear ratios (such as fifth or sixth gear) allow the engine to operate at lower speeds while maintaining higher vehicle speeds, providing better fuel efficiency and reduced engine wear.
2. Acceleration and Power: By selecting the appropriate gear ratio, the transmission enables the driver to control the vehicle’s acceleration and power delivery. Lower gear ratios provide quick acceleration by multiplying the engine’s torque output. During rapid acceleration, the transmission may stay in lower gears to keep the engine operating within its optimal power band. Higher gear ratios are used for cruising at higher speeds, where less torque is needed to maintain the vehicle’s momentum.
3. Engine Performance: Gear ratios are crucial for optimizing engine performance. Engines have a specific range of speeds called the power band, where they deliver the most power efficiently. By selecting the right gear ratio, the transmission keeps the engine operating within its power band, ensuring optimal performance and responsiveness. This improves the overall driving experience and allows the engine to operate at its most efficient point, resulting in better fuel economy.
4. Load and Terrain Adaptation: Different gear ratios allow the vehicle to adapt to varying loads and terrains. When encountering uphill gradients or carrying heavy loads, lower gear ratios are used to provide the necessary torque for overcoming resistance. Conversely, on flat roads or when the vehicle is lightly loaded, higher gear ratios are utilized to maintain speed while reducing engine RPM and improving fuel efficiency.
5. Gear Shifting: The availability of different gear ratios facilitates gear shifting in manual transmissions. As the vehicle accelerates, the driver can shift to higher gears to reach higher speeds while maintaining optimal engine performance. Similarly, when decelerating or coming to a stop, downshifting to lower gears allows for engine braking and better control of the vehicle.
6. Mechanical Advantage: Gear ratios provide a mechanical advantage by multiplying the engine’s torque output. Lower gear ratios offer higher torque multiplication, enabling the vehicle to overcome resistance and handle demanding tasks. This mechanical advantage is particularly useful during towing, off-road driving, or situations requiring increased traction.
Overall, gear ratios in automobile transmissions enable the engine’s power and torque to be transmitted to the wheels efficiently. They allow for speed and torque conversion, adaptation to different driving conditions, optimization of engine performance, and control over the vehicle’s acceleration and power delivery.
editor by CX 2023-09-22