AnAng one-stop procurement, part number 8009E130749, F-24303.04, NKIB model

AnAng one-stop procurement, part number 8009E130749, F-24303.04, NKIB model

Brand: INA

model:F-24303.04.NKIB

Accessory Number:8009E130749

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

The Heidelberg printing press opening ball bearing F-24303.04 in Germany requires NKIB technology to use printing press bearings for the center 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). To perform the functions of the printing machine such as pressing, releasing, or compensating for different paper thicknesses, the center distance of the rollers must be adjustable. For this reason, the Heidelberg printing press in Germany has an eccentric ring that can reliably and low friction rotate a certain angle.

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 Data

Product Name: Printing Machine Bearing F-24303.04. NKIB Open Tooth Ball Bearing
Product model: Printing machine bearing F-24303.04. NKIB
Product type: Open tooth ball bearing
Application Industry: Heidelberg Offset Press Speed Master SX 102/Speed Master CS92

4、 Product physical picture

model:F-24303.04.NKIB

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 Description

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.

Roland printing machine bearings are the most influential well-known brand in China after Heidelberg. Especially in the south, there is a wide user base. The impression left by Roland printing machine bearings is durability, high precision, and high degree of automation. Unlike Heidelberg machines, its split series printing machines have a drum diameter of 300mm and a completely non-contact double diameter drum structure for the paper transfer line. The ink roller on the plate adopts a movable mechanism (similar structures are also used by other manufacturers), which can eliminate ghosting. The embossing cylinder of Roland printing machine bearings adopts hollow roller bearings, which have a certain pre pressure during installation, so as to eliminate the bearing clearance during installation. Hollow roller bearings are considered an ideal bearing structure, but their machining is relatively difficult and the tolerance requirements are particularly strict. The version drum and rubber drum adopt sliding bearings (copper sleeve structure), which have strong impact resistance and high requirements for the oil circuit. If the oil circuit works poorly, it will cause excessive friction during high-speed operation.
Another characteristic of Roland printing machine bearings is the use of a long shaft to provide power. From the first group to the fourth group, a long shaft is used to drive the relevant mechanisms of each unit upwards. The advantage of this mechanism is that it can ensure synchronous operation of all units and reduce transmission errors between gears.
Roland printing machine bearings are also equipped with dual paper feeding mechanisms, which can be fed by roll paper or single sheet paper. When using the roll paper feeding method, the paper roll part and its slitting part of the roll paper can be fed into the feeding area. When using a single sheet paper feeder, simply remove this part. Roland printing machine bearings have been carefully considered in the structural design of Feida, using four paper separating suction nozzles and eight paper feeding suction nozzles, which have strong adaptability to thin and thick paper.
Roland printing machine bearings can complete post press operations such as hot stamping, embossing, die-cutting, and punching online, saving a lot of post press operation time. This is also the most integrated printing equipment in all printing machines. Roland printing machine bearings are also equipped with quality management systems such as online image monitoring, online color detection, and online quality control. These information can be connected to the network, allowing users to understand the quality status of their printed products. The maintenance and upkeep of Roland printing machine bearings are crucial, as issues often arise on the company's production lines. If not maintained in a timely manner, it will bring significant hidden dangers. So it is necessary to regularly maintain and upkeep Roland printing machines, and promptly repair any malfunctions that occur. For example, the repair of circuit board faults in Roland printing machines requires special attention.

Static maintenance of printing machines refers to the maintenance of the machine in a static state
1. Establish rules and regulations for machine maintenance. The maintenance of offset printing machines should be based on the machine manual. Such as regular oil changes, cleaning of filters, and regular testing of machine accuracy.
2. Strengthen the maintenance of important components. Gears, camshafts, sprockets, and Heidelberg printing press opening ball bearings F-24303.04. NKIB are the most important components on the printing press, and their maintenance should be different from other components because changes in their accuracy will affect the effectiveness of equipment operation. Springs are the most commonly used components in force balancing mechanisms on machines, and their performance directly determines the accuracy of the coordination between moving parts. Springs must have sensitive elasticity, while anelasticity and irreversible plastic deformation are extremely detrimental to the operation of springs. If the above problems are found, the spring needs to be replaced immediately.

Installation steps
Before installing the bearing on the shaft, it is necessary to first remove the fixing pin of the bearing sleeve, polish the surface of the shaft neck smooth and clean, and apply oil to the shaft neck for rust prevention and lubrication (allowing the bearing to rotate slightly on the shaft).
2. Apply lubricating oil to the mating surface between the bearing seat and the bearing, and install the INA bearing into the bearing seat. Then fit the assembled bearing and bearing seat together onto the shaft Push to the desired location for installation.
3. Do not tighten the bolts that fix the bearing seat yet, but allow the bearing sleeve to rotate within the bearing seat. Install the other end bearing and seat on the same shaft, rotate the shaft a few times, and let the INA bearing automatically align itself. Tighten the bearing seat bolts again.
4. Install the eccentric sleeve. First, insert the eccentric sleeve onto the eccentric step of the bearing inner sleeve and tighten it by hand in the direction of the shaft rotation Then insert or press the small iron rod into the counterbore on the eccentric sleeve Use a hammer to strike the small iron rod in the direction of axial rotation Install the eccentric sleeve firmly, and finally tighten the hexagon socket screw on the eccentric sleeve.

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