NACHI was founded in 1928. NACHI has been committed to the development of machinery technology and machinery manufacturing since its inception. NACHI's main factory is located in Toyama, Japan. North America, South America, Europe and Asia also have production bases, and permanent representative offices and sales outlets have been set up worldwide. Its products mainly include: special steel, cutting tools, bearings, hydraulic devices, robot systems, cutting tools, machine tools, bearings, hydraulic equipment, robots for automated production, special steel, ultra-precision machinery for the IT industry and its environmental systems. is currently one of the four famous bearing brands in Japan. NACHI bearings can produce products that can cover almost all mechanical industries, including robot systems, lathes, tools, automobiles, large equipment, and so on.
Since its establishment in 2011, Eric Bearing Limited has established partnerships with NACHI bearing distributors. We not only provide high-quality NACHI bearings, but also provide high-quality services to ensure product quality. Our company has strengthened quality inspection procedures, established a special quality inspection department, and added contour and roughness testers, micro hardness testers. , Bearing life tester and other equipment. Reliable product quality guarantees that the products are widely used in machinery manufacturing, printing, electronics, chemical, automotive, steel, mining and other fields.
Advantages of NACHI bearings
1. Reduce friction and abrasion.
NACHI bearings can form the contact parts of bearing rings, rolling elements and cages to prevent metal contact and reduce friction and wear.
2. Extend fatigue life.
During the rotation process, the rolling contact surface is well lubricated, and the rolling fatigue life of the bearing is extended. On the contrary, the oil viscosity is low, and the thickness of the lubricating oil film is not good, so it is shortened.
3. Dissipate frictional heat and cool.
The cyclic oil supply method can use oil to discharge heat generated by friction or heat transmitted from the outside to cool. Prevent the bearing from overheating and prevent the lubricant from aging itself.
Structural performance characteristics of different types of NACHI bearings
NACHI thrust angular contact ball bearings
Thrust angular contact ball bearings generally have a contact angle of 60 °. The commonly used thrust angular contact ball bearings are generally two-way thrust angular contact ball bearings. They are mainly used for precision machine tool spindles. They are generally used in conjunction with double-row cylindrical roller bearings and can withstand bidirectional shafts. It has the advantages of high precision, good rigidity, low temperature rise, high speed, and convenient assembly and disassembly.
NACHI deep groove ball bearings
Each ferrule of a deep groove ball bearing has a continuous groove type raceway whose cross section is approximately one third of the equatorial circumference of the ball. Deep groove ball bearings are mainly used to support radial loads and can also bear certain axial loads. When the radial clearance of the bearing increases, it has the properties of an angular contact ball bearing and can withstand axial loads that alternate in two directions. Compared with other types of bearings of the same size, this type of bearing has a small friction coefficient, high limiting speed, and high accuracy, and is the preferred bearing type when users select a type. Deep groove ball bearings have a simple structure and are easy to use. They are the largest type of imported bearings with the largest production volume and the widest application range.
NACHI Thrust Tapered Roller Bearing
Because the rolling elements in thrust tapered roller bearings are tapered rollers, both the rolling generatrix and the raceway generatrix of the washer meet at a certain point on the bearing's axis line, so the rolling surface can form pure rolling and high limiting speed. For thrust cylindrical roller bearings. Features: Thrust tapered roller bearings can withstand unidirectional axial loads. The type code of thrust tapered roller bearings is 90,000.
NACHI Double Row Tapered Roller Bearing
Double-row tapered roller bearings have a variety of structures, the largest of which is 35000. There is a double-track outer ring and two inner rings. There is a spacer between the two inner rings. The clearance can be adjusted by changing the thickness of the spacer. This type of bearing can withstand bidirectional axial load while bearing radial load, and it can limit the axial displacement of the shaft and housing within the axial clearance of the bearing. Structural characteristics of tapered roller bearings. The type code of tapered roller bearings is 30,000, and tapered roller bearings are separable bearings. Tapered roller bearings are mainly used to support the combined radial and axial loads, mainly radial loads. Compared with angular contact ball bearings, the bearing capacity is large and the limiting speed is low. Tapered roller bearings can withstand axial loads in one direction and can limit axial displacement of the shaft or housing in one direction.