E542 5664, 3077 2.2L MAZDA B2200 87 - 93 F2 B2000 TODOS 86mm*1.5+1.5+4 Piston Ring

Product Component: • 86mm(STD)Hastings Pistons Rings Set
• SET OF RINGS FOR 4 PISTONS
• 1st Ring Size 1.5mm
• 2nd Ring Size 1.5mm
• Oil Ring Size 4.0mm

Car Application:

What is a piston ring

A piston ring is a split ring that fits into a groove on the outer diameter of a piston in a reciprocating engine such as aninternal combustion engine or steam engine.

Most automotive pistons have three rings: The top two while also controlling oil are primarily for compression sealing (compression rings); the lower ring is for controlling the supply of oil to the liner which lubricates the piston skirt and the compression rings (oil control rings). At least two piston rings are found on most piston and cylinder combination. Typical compression ring designs will have an essentially rectangular cross section or a keystone (right angled trapezoidal) cross section. The periphery will then have either a barrel profile (top compression rings) or a taper napier form (second compression rings or scraper rings). There are some taper faced top rings and on some old engines simple plain faced rings were used.

Lubrication of piston rings is difficult and has been a driving force to improvements in the quality of motor oil. The oil must survive high temperatures and harsh conditions with a high-speed sliding contact. Lubrication is particularly difficult as the rings have an oscillating motion rather than continuous rotation, as for a bearing journal. At the limits of piston movement, the ring stops and reverses direction. This disrupts the normal oil wedge effect of a hydrodynamic bearing, leading to pronounced wear and the formation of a 'step' in the cylinder bore around the height of the upper ring. Noting that some sleeve valve engines suffered far less from such wear, complex designs such as a rotating cylinder liner have been considered, just to address this problem.

Piston Rings critical quality

The piston might be a fairly loose fit in the cylinder. If it were a tight fit, it would expand as it got hot and might stick tight in the cylinder. If a piston sticks (seizes) it could cause serious damage to the engine. On the other hand, if there is too much clearance between the piston and cylinder walls, much of the pressure from the burning gasoline vapour will leak past the piston (a condition known as blow-by) and into the crankcase, and the push on the piston from combustion will be much less effective in delivering power.

Product description

Located between the cylinder and the piston, piston rings are necessary components that allow the engine to operate efficiently.

1. Piston rings maintain gas compression between the piston and the cylinder wall.

2. Piston rings usually make necessary minimum lubricating oil film for preventing scuffing.

3. Piston rings transfer heat from the piston crown to the cylinder.

4. Piston rings prevent the piston from knocking on the cylinder wall.

Maojia Industry’s piston rings advantages

1. Years of OEM experience in China and overseas.

2. High quality material and superior steel.

3. Specification perfectly match different engine.

4. Experienced engineers and technical team.

5. Advanced manufacturing equipment, R&D software and test machine.

6. 100% tested for size and performance before shipment.

Ningbo Maojia International Trading Co., Ltd is an industry and trade intergrating company which focuses on autoparts importing and exporting. It has taken a leading position in domestic and international markets with high-quality products and professional technology. Following the trend of the development of international automobile industry, based on the development and inspection of the module product, Maojia supplies timing belt kit, chain kit, full gasket set and a series of autoparts. Our products cover a wide range of gasket sets, and the application includes European, American, Japanese and Korean cars and diesel trucks. The quality of the main parts, like head gasket and oil seal, reaches OE standard. The products are supplied to many domestic automotive OEMs and the quality assurance reaches 100000 kilometers.

Recent years have witnessed the company’s intergration of the product supply chain and the construction of the foreign sales channels. Knowing the foreign autoparts markets well, the company has abundant of purchasing and marketing. The company has several manufacture bases through alliance and holding, which has formed a large supplier alliance system, becoming an important part of the value chain. In the international market, based on years of developing and accumulating, Maojia’s products have gained a huge success in American, European, the Middle East and African markets. With hunderds of customers cooperating with us in long term, we also established our own warehouse and logistic distribution center at abroad.

The company takes warehouse inventory management, which can meet individual need of different kinds of customers. Sufficient stock of products is available, especially the popular ones, to meet customers’ demands at any time. Meanwhile, our company actively imports advanced technology at home and abroad, making use of automatic assembly line and ERP system. Product inspection and quality control is our focus. With ISO9001/14001 Management System Certification, the company is dedicated to offering brand products with high-quality and competitive price to our customers.

Welcome customers from home and abroad to our company for a visit and develop with us together.