Manufacturer supplies INA bearings, F-27991.03. NKIA model, Roland brand

Manufacturer supplies INA bearings, F-27991.03. NKIA model, Roland brand

Brand: INA

model:F-27991.03.NKIA

1、 Brand Overview

INA? Is it a brand of clothing? A type of furniture? No, no, neither. The INA I'm referring to is a high-precision mechanical component - a bearing brand. INA develops and produces rolling bearings, sliding bearings, linear motion products, and automotive engine components worldwide. As a partner in research and development, INA has been closely collaborating with customers since the initial stages of system development. New solutions tailored to users are born every day, which means that over 1000 new products are launched into the market every year. INA has invested heavily in its research and development department, with a particular focus on the construction of new research and development centers in Germany, Asia, and North America recently.

INA: is a well-known bearing brand in Germany, belonging to the German INA Bearing Company under the Schaeffler Group. It was founded in 1946 and is headquartered in Nuremberg, Germany. Since its establishment, INA Bearing Company in Germany has been committed to product innovation to meet customer needs and provide high-quality assurance, making it the world's leading supplier of rolling bearings and a recognized partner for automotive manufacturers. Bearings are an important component in contemporary mechanical equipment. Its main function is to support mechanical rotating bodies, reduce their friction coefficient during motion, and ensure their rotational accuracy. According to the different friction properties of moving components, bearings can be divided into two categories: rolling bearings and sliding bearings. Rolling bearings have been standardized and serialized, but compared to sliding bearings, they have larger radial dimensions, vibration, and noise, and are also more expensive. The INA brand is widely used in the automotive industry, including engines, transmissions, and chassis, as well as in the industrial sector. INA has unparalleled technological advantages in precision product molding and provides customers with excellent cost-effective solutions based on this. In the industrial sector, four industry management departments respectively guide the market promotion of INA and FAG brands in the fields of production machinery, power transmission and railway, heavy industry, and consumer products.

As early as 1946, George? Dr. Georg Schaeffler and his brother Wilhelm co founded Schaeffler Corporation and demonstrated the significance of breaking through thinking frameworks in 1949. At that time, his research and development of needle roller and cage components led to a major breakthrough in the application of needle roller bearings in the industrial field, filling the gap in this field. George? Schaeffler's innovative spirit and desire for success have become an eternal part of INA's corporate culture in 35 factories worldwide. For decades, INA has represented creative solutions, professional standards in design and production, and great attention to customer requirements. Breaking free from the constraints of thinking patterns, breaking through the obstacles of traditional habits, and finding new ways, whether from the beginning of a company's establishment or decades later today, are all the essence of corporate culture.

2、 Product Introduction

F-27991.03. NKIA bearings under the INA brand are components that fix and reduce the friction coefficient of loads during mechanical transmission processes. It can also be said that when other components generate relative motion on the shaft, F-27991.03. NKIA is used to reduce the friction coefficient during power transmission and maintain the fixed position of the shaft center. INAF-27991.03. NKIA bearings are a crucial component in contemporary mechanical equipment. Its main function is to support mechanical rotating bodies and reduce the friction coefficient of mechanical loads during the transmission process of equipment. INA F-27991.03. NJIA Bearings - Use of F-27991.03. NJIA Bearings for Printing Machines

Definition of bearings:
A bearing is a component that supports a shaft, which can guide the rotation of the shaft and also withstand the idle parts on the shaft. The concept of a bearing is very broad. The component that supports the axis of relative rotation is called a bearing. Usually, it is axis rotation. There are also cases where the shaft does not rotate but the housing rotates, such as car wheel hub bearings. Bearings are the foundation of all machines and an indispensable product in modern society; Known as the "grain of the machinery industry", it ensures the quality of all supplied products and the normal operation of equipment. Tongqi Bearing specializes in providing services for industrial production and automotive maintenance; Specializing in imported brands, gathering classic bearings from various countries, consolidating the comprehensive strength of each brand, and continuously providing technical services to users and distributors; Assist customers in solving difficult problems such as bearing selection, domestic and foreign brand exchange, and model specification substitution; In the market economy of the new century, helping enterprises reduce costs, provide economic benefits, and ensure worry free operation of equipment.

3、 Product parameters

model:F-27991.03.NKIA

Brand: INA Model: F-27991.03. NKIA Inner Diameter: 16 (mm)
Outer diameter: 35 (mm) Thickness: 35 (mm) Retaining frame and its material: J steel plate stamping
Weight: 0.2 (kg) Usage: General sample or in stock: In stock
Rolling element type: Needle roller Rolling element Column number: Single row Rolling element Type: Spherical rolling element

4、 Product physical picture

model:F-27991.03.NKIA

Printing machine bearings are used for central positioning of plate cylinders, rubber cylinders, impression cylinders, and transfer cylinders. This means that bearings should meet a series of requirements as much as possible. The accuracy of roller bearing arrangement has a decisive impact on printing quality. The bearings of the printing machine must ensure that all cylinders can work together to the best extent during the printing process. There must be no relative motion in the radial and axial directions. Therefore, bearings must meet high requirements in terms of zero clearance, rigidity, and operational performance. Moreover, it must be possible to control the axial movement of the printing plate cylinder to achieve skew adjustment (diagonal alignment function).

5、 Product detailed description

The needle roller/angular contact ball bearing combination bearings NKIA and NKIB have inner rings.
The NKIA series complies with DIN 5 429-2 and can withstand axial forces on one side.
The alternating axial force NKIB has a narrow inner ring and a wide inner ring. Thrust bearing components with nylon
Keep the shelf. At the junction of the inner ring, there are ball and cage components guided by shoulder shafts on both sides.
Therefore, this type of bearing is suitable for withstanding axial forces with directional changes.
The axial guide clearance of the bearing is 0.08 mm to 0.25 mm.
Lubricate NKIA and NKIB with grease or oil. The outer ring has lubricating oil grooves and holes for lubrication.
The permissible operating temperature for bearings is -20 ° C to+120 ° C.
There are two types of retaining frames: steel plate retaining frames and nylon retaining frames. The bearing suffix with nylon cage is TV.

Radial rigidity of tapered roller bearings:
Pre tensioned tapered roller bearings have slightly higher rigidity than pre tensioned cylindrical roller bearings. In fact, the difference is very small and can be ignored. In addition, tapered roller bearings have relatively high axial rigidity and can withstand overturning moments. But precisely because of its high tilting rigidity, it is necessary to pay attention to the very limited misalignment allowed by the drum shaft neck. Conical roller bearings are very suitable as positioning bearings in single sheet offset printing machines, for example. The DMF bearing unit has extremely high radial and axial rigidity. This is achieved through the combination of radial cylindrical roller bearings and bi-directional, zero clearance thrust needle roller bearings. Due to its high axial rigidity and extremely low axial runout, this bearing unit is particularly suitable for use in the transfer drum of single sheet offset printing machines.
Control pre tightening:
Pre tightening of bearings will increase the internal forces acting on the rolling elements. And thus exacerbate friction and temperature rise. Light preloading not only increases the rigidity of the bearing, but also slightly improves its fatigue life. However, if the optimal preload is exceeded, the rated life of the bearing will sharply decrease, and friction and temperature rise will significantly increase.

characteristic:

Needle roller/thrust cylindrical roller bearings consist of an outer ring with radial and axial raceways, two shaft rings, an inner ring, a radial needle roller cage assembly, and two thrust cylindrical roller cage assemblies. There are two types of bearings: bolted and non bolted.
Radial and axial load-bearing capacity: In addition to radial forces, bearings can also withstand axial forces and overturning moments in two directions.
Preloading and internal clearance: The outer ring, inner ring, and axial cage are matched with each other, so after pre tightening with INA precision locking nuts, the bearing can achieve no axial clearance. The internal radial clearance of the bearing complies with group C2 of standard DIN 620.
Bolt mounted bearings: Needle roller/thrust cylindrical roller bearings ZARF (L) have holes on the outer ring. This allows for direct installation in adjacent structures or radial positioning holes through bolts. Due to the bolted installation of the outer ring of the bearing, additional bearing end caps and selection work can be eliminated. Use precision locking nuts AM or ZM (A) to pre tighten the bearing, with the bearing tightly against the shaft shoulder.
With sealing components: To make the design simpler, it is recommended to use the sealing component DRS. The sealing component is aligned with the outer ring and protects the bearing from external factors.

We will provide you with servo control systems and other peripheral services, and promise to install and debug each motor on-site. Give your choices the maximum appreciation potential! Our products are well-known imported transmission products from various countries such as Taiwan, Japan, Germany, and the United States to ensure that our product quality is leading in China. They are original and authentic, with excellent quality and affordable prices. This has been our commitment to customers for the past decade. Welcome to consult!