Manufacturer supplied, part number 00.55.0211, model WS81110

Manufacturer supplied, part number 00.55.0211, model WS81110

Brand: INA

Model:WS81110

Accessory Number:00.550.0211

1、 Brand Overview

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

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.

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).

3、 Product Data

Model:WS81110

Accessory Number:00.550.0211

4、 Product physical picture

Model:WS81110

Exquisite rolling bearing technology, advanced production factories, and superior quality standards have made INA bearings renowned and enduring worldwide. It has been fully proven in millions of practical applications. INA bearing products are reliable mechanical components that combine cost and efficiency. INA bearing products are reliable mechanical components that combine cost and efficiency. INA products provide various size series for rotary motion, linear motion, and even various specialized technologies. We provide various size series for various specialized technologies in different industries, providing valuable technical support for designers in various industries.

5、 Product Description

Do both the inner and outer rings need to be fully positioned during the axial positioning of the bearing
Merely relying on interference fit to axially position the bearing ring is not enough. Usually, appropriate methods need to be used to axially position the bearing ring. The inner and outer rings of the positioning bearing should be axially fixed on both sides. For non positioning bearings with inseparable structures, such as angular contact ball bearings, a tight fit (usually inner ring) is used for one bearing ring, which requires axial fixation; The other bearing ring can freely move axially relative to its mounting surface. For non locating bearings with separable structures, such as cylindrical roller bearings, both the inner and outer rings need to be axially fixed. In machine tool applications, the working end bearings typically transmit axial loads from the shaft to the bearing seat to position the spindle. Therefore, the working end bearing is usually positioned axially, while the driving end bearing can move freely axially. When installing the bearing inner ring with interference fit, the positioning method of locking nut is usually to place one side of the inner ring against the shoulder on the shaft, and the other side is usually fixed with a locking nut (KMT or KMTA series). Bearings with tapered holes are directly installed on tapered shaft necks and are usually secured to the shaft with locking nuts. The spacer positioning method is convenient for using spacers or spacers between bearing rings or between bearing rings and adjacent parts, instead of integral shaft shoulders or bearing seat shoulders. In these cases, dimensional and shape tolerances also apply to the relevant parts. Another method of axial positioning for bearings is to use stepped shaft sleeves. These shaft sleeves are particularly suitable for precision bearing configurations, with smaller runout and higher precision compared to threaded locking nuts. Stepped shaft sleeves are commonly used for ultra high speed spindles, for which traditional locking devices cannot provide sufficient accuracy. When installing the bearing outer ring with interference fit using the fixed end cap positioning method, one side of the outer ring is usually placed against the shoulder on the bearing seat, while the other side is fixed with a fixed end cap. Fixed end caps and their fixing screws can have a negative impact on the shape and performance of bearings in some cases. If the wall thickness between the bearing seat and the screw hole is too small, or if the screw is tightened too tightly, the outer raceway may deform. The lightest ISO size series 19 series is more susceptible to such damage than the 10 series or heavier series. It is advantageous to use a large number of small diameter screws. It should be avoided to use only 3 or 4 screws, as there may be protrusions in the bearing seat holes due to the lack of fastening points. This will generate variable friction torque, noise, and unstable preload (when using angular contact ball bearings). For spindle designs that are complex, have limited space, can only use thin-walled bearings, and have a limited number of screws. In these examples, it is recommended to conduct precise deformation checks through FEM (Finite Element Method) analysis. In addition, the axial clearance between the bearing seat end face and the end cover flange should also be checked.

Axial positioning of bearings:
The selection of the positioning method for bearings on the shaft and in the housing hole depends on the magnitude and direction of the load acting on the shaft, the speed of the bearing, the type of bearing, and the position of the bearing on the shaft.
1. Positioning of the outer ring
When installing the outer ring of the bearing in the housing hole, there is usually a shoulder fixed bearing position on the inner side of the housing hole, and the other side is positioned with end caps, threaded rings, and elastic stop rings for the hole.
(1) End cover positioning
End cap positioning is used for all types of radial and angular contact bearings, and is used in situations where the bearing speed is high and the axial load is large. The end cover can be positioned and pressed against the outer ring of the bearing with screws, and can also be made into a labyrinth sealing device.
(2) Threaded ring positioning
When the bearing speed is high and the axial load is large, and it is not suitable to use end cap positioning, threaded rings can be used to position radial bearings and thrust bearings, which can be used to adjust the axial clearance of the bearings.
(3) Elastic gear ring positioning
This positioning method occupies a small axial position, is easy to install and disassemble, is simple to manufacture, and is suitable for bearing small axial loads. Add an adjusting ring between the bearing and the spring to facilitate adjusting the axial position.
(4) Deep groove ball bearings with stop grooves on the outer ring of the bearing can be positioned using stop rings.
When the stop shoulder cannot be machined in the housing hole due to limitations in conditions, or when the component must reduce the contour size, this type is selected.

2. Positioning of the inner ring of the bearing
When installing the inner ring of the bearing on the shaft, it is generally fixed on one side by the shaft shoulder, while the other side is fixed with nuts, stop washers, or spring washers. The dimensions of the contact part between the shoulder and axial fixed parts and the inner ring of the bearing can be determined according to the installation dimensions of various types of bearings listed in the bearing size table.
(1) Nut positioning
When the bearing speed is high and it bears a large axial load, the end face of the nut in contact with the inner ring of the bearing should be perpendicular to the axis of rotation. Otherwise, even if the nut is tightened, it will damage the installation position and normal working condition of the bearing, reducing the rotational accuracy and service life of the bearing. Especially when the fit between the bearing inner hole and the shaft is loose fit, strict control is needed.
In order to prevent the nut from loosening during rotation, appropriate technical measures to prevent loosening need to be taken. Using a nut and a stop washer for positioning, insert the key teeth inside the stop washer into the keyway of the shaft, and then bend one of the teeth on the outer ring into the notch of the nut.
(2) Spring coil positioning
In cases where the axial load is not significant, the rotational speed is not high, the shaft is short, and it is difficult to machine threads on the shaft neck, an elastic retaining ring with a rectangular cross-section can be used for positioning. This method is very convenient for loading and unloading, occupies a small space, and is easy to manufacture.
(3) Positioning of thrust washer
When the shaft neck is short, it is difficult to process threads on the shaft neck, the bearing speed is high, and the axial load is large, washer positioning can be used. That is, two or more screws are used to position the washer on the shaft end face, and a stop washer or wire is used to tighten it to prevent loosening.
(4) Tightening sleeve positioning
The self-aligning roller bearing, which can withstand stable radial loads and small axial loads with low bearing speed, can be installed on the optical axis with the help of a conical clamping sleeve. Tighten the nut and stop washer for positioning. Use the frictional force of the nut lock to position the bearing.
(5) Positioning of bearings with tapered inner holes
Bearings with tapered inner holes should be installed on tapered shafts, and the axial load should be checked to tighten the shaft and bearing. Therefore, attention should be paid to the directionality of the tapered inner hole during installation. If the bearing is located at the shaft end and can be machined into threads at the shaft end, it can be directly positioned with a nut.
If the bearing is not installed on the shaft end and threading is not allowed on the shaft. In this case, the threaded ring with two halves merged can be clamped into the groove of the shaft, and then the bearing can be positioned with a nut.
(6) Special positioning
In some special cases where the shoulder and fillet dimensions of the shaft cannot be determined according to the installation dimensions listed in this catalog, transition washers can be used as axial supports.

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.

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!