Browse

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Pet Supplies Sporting Goods Ticket Toys Games Transportation Others

Used Cars New Cars Others

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

How to Identify the Number of Pistons in a Brake Caliper?

1 Answers

AidenRose

07/30/25 9:19am

There are several circular protrusions on the brake caliper, and these protrusions are the pistons. Multiply the number of protrusions on one side by four to calculate the total number of pistons. Below is an introduction to brake calipers: 1. The brake caliper is part of the automobile braking system and belongs to a type of disc brake. Disc brakes are further divided into solid disc and ventilated disc types, with most modern cars using ventilated disc brakes. Ventilated disc brakes consist of a brake disc, friction pads, brake booster pump, wheel cylinder, and brake caliper. The piston caliper is the device that pushes the friction pads against the brake disc; generally, the number of piston calipers corresponds to the number of friction pads. 2. More friction pads mean a larger friction area, and a larger friction area results in greater friction with the brake disc. Knowing that pistons are equivalent to friction pads, it follows that more pistons indicate better braking performance. 3. The working principle of the braking system is that when the driver presses the brake pedal, brake fluid begins to apply pressure. The brake fluid is transmitted through the pipelines to the pistons of each brake assembly, and the pistons drive the brake caliper to initiate braking. The function of the pistons is to increase the force-bearing area of the brake disc, so more pistons mean a larger friction area on the brake disc.

Was this review help?

8

3

Share

More Forum Discussions

What is the maximum speed of the Wuling Hongguang S?

1. The 1.2L model can reach a maximum speed of 120 km/h, while the 1.5L model can reach up to 155 km/h. More details are as follows: 1. Body dimensions: The Wuling Hongguang S is a microvan under the Wuling brand, with a wheelbase of 2720mm, and length, width, and height of 4420mm, 1685mm, and 1755mm respectively. 2. The 1.5L naturally aspirated engine of the Wuling Hongguang S: It has a maximum power of 73kW and a maximum torque of 140 Nm, with the maximum torque range between 3400 to 4400 rpm. This engine is equipped with multi-point fuel injection technology and features an aluminum cylinder head and cast iron cylinder block. It is paired with a 6-speed manual transmission. 3. The 1.2L naturally aspirated engine of the Wuling Hongguang: It delivers a maximum power of 56kW and a maximum torque of 110 Nm, with the maximum torque range between 3000 to 4000 rpm. This engine also uses multi-point fuel injection technology and has an aluminum cylinder head with a cast iron cylinder block. It is matched with a 5-speed manual transmission. 4. Suspension: The front suspension of the Wuling Hongguang S uses a MacPherson independent suspension, while the rear suspension employs a leaf spring non-independent suspension.

Are All New Vehicles Exempt from Inspection for 6 Years?

New vehicles are exempt from inspection for 6 years. The 6-year exemption for new vehicles means that within the first 6 years, the vehicle does not need to undergo an on-site inspection at a vehicle inspection station. However, the owner is still required to conduct a periodic check every two years. During the first 6 years, in the second and fourth years, the owner only needs to complete some relevant procedures, while in the sixth year, the vehicle must be taken to the inspection station for an on-site inspection. Only after passing the inspection can the inspection label be obtained. Below is an introduction to the vehicle annual inspection requirements: Passenger vehicles for commercial use: Must be inspected once a year within the first 5 years; after 5 years, every 6 months. Non-commercial passenger vehicles: Must be inspected once a year within the first 10 years; after 10 years, every 6 months. Small and mini non-commercial passenger vehicles: Must be inspected once every 2 years within the first 6 years; after 6 years, once a year; after 15 years, every 6 months.

What is the purpose of the blue and red lines on new tires?

New tires have blue and red lines to prove that the tire is indeed brand new and unused. Here is additional information: Tire lifespan: There are wear limit indicators in the tread of the tire. According to current regulations in China, when the tread depth of a passenger car tire is less than or equal to 1.6 mm, it means the tire has reached the end of its life. However, it is generally recommended to replace the tire when the tread depth is less than or equal to 2 mm, taking into account the tire's drainage performance. Purpose of the colors: The color indicates the width of the tread and the specifications of the tire. The lines are made of ordinary paint, which fuses with the rubber after being vulcanized in the vulcanization workshop. Every new tire has these lines. They serve as a mark to distinguish between new and old tires, as well as to identify retreaded tires.

Can a manual pump inflate car tires?

Manual pumps can inflate car tires, but it is essential to ensure the pump is compatible with the car's valve stem. For safety, choose a high-quality pump, preferably one with a pressure gauge. However, using a manual pump can be very tiring, so it is recommended to use a car air pump instead. Here is additional information: The working principle of a car air pump is quite simple. When the pump is operating, if the pressure in the pressure-holding circuit drops for any reason, the booster pump will automatically activate to compensate for the leaked pressure, ensuring more stable circuit pressure. The booster pump is a type of plunger pump. During operation, it rapidly cycles repeatedly. As the output pressure increases, the pump's reciprocation slows down and eventually stops, stabilizing the pressure with minimal energy consumption, and all components gradually cease operation.

Will Points Be Deducted for the Front Passenger Playing with Their Phone?

During driving, the front passenger playing with their phone will not result in point deductions. The dangers of using a phone while driving: 1. Reduced safety: It significantly impacts speed control, distance judgment, and obstacle avoidance, making it highly likely to cause operational errors or loss of vehicle control, leading to accidents. 2. Distracted attention: The risk of a crash while using a phone is more than four times higher than during normal driving, with 70% of fatal accidents caused by driver inattention. 3. Narrowed field of vision: The driver's focus shifts from the road to the phone screen, narrowing their field of vision. 4. Causes traffic congestion: A major culprit behind traffic jams. Reduced speed leads to congestion.

What is the name of China's first Mars rover?

China's first Mars rover is named "Zhurong". Here are the details: Meaning: In traditional Chinese culture, Zhurong is revered as the earliest god of fire, symbolizing illuminating the earth with fire and bringing light. Naming the first Mars rover Zhurong signifies igniting the spark of China's interstellar exploration, guiding humanity's continuous exploration and self-transcendence of the vast starry sky and the unknown universe. Specifications and mission: The Zhurong Mars rover stands 185 centimeters tall and weighs approximately 240 kilograms. Its designed lifespan is 3 Martian months, equivalent to about 92 Earth days. The Zhurong rover will conduct exploration work on Mars, including surface composition, material type distribution, geological structure, and Martian meteorological environment.

Trending Ranking

How to Identify China 5 and China 6 Emission Standards for Vehicles?

Where is the frame number of Buick car pictures?

Why doesn't the new car's certificate of conformity arrive at the 4S store with the vehicle?

Dashboard Symbols in Cars?

What Causes the Abnormal Noise When Releasing the Brake on a New Car?

Will an Umbrella Accidentally Scratch the Car?

Does Forced Downshifting in Tiptronic Transmission Damage the Car?

How Long Is the Warranty Period for a New Car?

Can You Place a Teddy Bear in the Front Passenger Seat?

Is it necessary to go to a 4S shop for maintenance?

More Forum Discussions

Do You Need to Turn on AC for Defogging in Winter?

What Causes Yellow Spots on the Interior Roof Lining of a New Car?

How Many Chips Does a Car Need?

What Causes the Steering Wheel to Not Return to Center Properly?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.