Supply from Anang Mall, part number 8091H508520, F-223449.PWKR model

Supply from Anang Mall, part number 8091H508520, F-223449.PWKR model

Brand: INA

Model:F-223449.PWKR

Accessory Number:8091H508520

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 F-223449.PWKR bolt type curved roller is generally a fully loaded roller structure, and the bolt shaft raceway is quenched. To avoid stress concentration, the outer surface of the thick walled outer ring of the roller is curved. The outer ring has two integral ribs, which are guided axially by rollers. The bolt shaft head and the side retaining ring of the press fit provide axial support for the outer ring through rollers. Curved roller bearings are suitable for heavy radial loads. As the outer ring is guided axially by rollers, the bearing can also withstand heavy axial loads, allowing for relatively high-speed operation. However, as it is a fully loaded roller, it is necessary to regularly replenish lubricating grease. Lubricant can be added through the holes on both ends of the core shaft and the core shaft body.

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-223449.PWKR

Accessory Number:8091H508520

4、 Product physical picture

Model:F-223449.PWKR

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 Close up

Characteristics of supporting rollers:
A supporting roller is a single or double row bearing unit installed on a shaft or bolt. They consist of thicker outer rings with specific outer surface shapes, needle rollers, and cage components, or fully loaded needle rollers or cylindrical roller components. Supporting rollers can withstand high radial loads and axial forces caused by slight misalignment and skewed operation; This type of bearing is suitable for applications such as cam drive, bed track, and conveying equipment. This type of bearing comes with or without an inner ring, double-sided sealing, and open type. The PWTR series is designed for X-life. Due to material improvement and optimized contour, the basic rated life has been increased by 30%. The static and dynamic load-bearing capacity has also been improved. Meanwhile, due to the optimization of the outer contour of the roller and the improvement of surface quality, the stress on the supporting track has been reduced. Due to these measures, a very sturdy and durable bearing arrangement and extremely long service life can be achieved.
Outer surface contour of outer ring
The supporting roller with a crown shaped outer surface is widely used in practice to avoid edge stress caused by the inclination of the roller relative to the supporting track. The curvature radius of the outer surface is R=500 mm. For rollers NNTR.. -2ZL, the radius is shown in the size table. The exterior surfaces of the NATR. - PP, NATV. - PP, F-233282.01.NUTR, and PWTR. -2RS series have optimized INA contour shapes. Supporting rollers with this curvature profile
1. Hertz stress is low
2. The edge stress during inclined operation is relatively low
3. Reduced wear of the supporting track
4. Extend the service life of the supporting track.

The bolt type curved roller bearing F-223449.PWKR is divided into 6 series:
1) Basic NUKR series: Bolt axis curved roller NUKR series is a fully loaded double row cylindrical roller structure.
2) Eccentric sleeve NUKRE series: The bolt axis curved roller NUKRE series is similar to the NUKR series in that it is a fully loaded double row cylindrical roller structure, with the only difference being that the NUKRE series has an eccentric sleeve on the bolt axis.
3) Double raceway PWKR series: The bolt axis curved roller PWKR series is similar to the NUKR series, both of which are fully equipped with double row cylindrical roller structures. The only difference is that the outer ring of the PWKR is double raceway, and the two rows of rollers are separated.
4) NUKRA series with side rollers; The NUKRA series has a similar appearance to the NUKR series, but the difference is that NUKRA uses double headed bolts and adds a side roller at the end of the bolt shaft, resulting in a structural change. NUKRA is a single row fully loaded cylindrical roller structure. This structure is the first of its kind for Wuxi Wald Bearing and is currently applying for a patent.
5) KR series: The KR series curved roller bearing is a needle roller cage component bearing. The outer ring is guided axially through the retaining edge on the bolt and the retaining ring fixed on the bolt, which can withstand heavy loads and medium speeds. Due to the large amount of grease storage space inside the bearing, the lubrication cycle needs to be extended. KR is similar to NUKR, except that KR has retaining rings at both ends, while NUKR only has retaining rings at one end.
6) KRV series: The KRV series curved roller bearing is a fully loaded needle roller bearing, with the outer ring guided axially by the flange on the bolt and the retaining ring fixed on the bolt. It can withstand heavy loads but at lower speeds, but must be regularly lubricated. NUKR is similar to KRV, but the difference is that NUKR only has a retaining ring at one end, while KRV has retaining rings at both ends.

Selection of lubricating grease for rolling bearings:
In printing machinery, two types of lubricating grease are preferred, as shown in the table.
For the main drum bearings, using lubricating grease MULTITOP can meet very high quality requirements. This is a universal grease used for ball and roller bearings, suitable for high-speed, heavy-duty, and low-temperature or high-temperature applications. It can ensure sufficient work performance and has the following characteristics:
1. Long working life
2. High operational reliability
3. Low friction.
For support type and bolt type rollers, the preferred lubricant is LOAD 150. This is a special grease used for ball, roller, and needle roller bearings, suitable for heavy loads, various speeds, and swinging movements.

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