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WIB SA
Switzerland
When your needs go beyond simple miniature ball bearings to complete sub-assemblies, the professionals at WIB can help. Drawing on decades of experience in designing systems using a wide range of materials, we have the expertise to produce a sub-assembly that delivers optimum precision, performance, and life. During the process, we make sure our solutions fit perfectly into your production system.
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Switzerland
You’re developing advanced technologies that keep your business and your industry moving. When it’s time to move beyond standard bearing to custom ball bearings solutions designed for uniquely challenging applications, WIB is a world-class partner.
Request for a quoteMPS MICRO PRECISION SYSTEMS AG
Switzerland
MPS Microsystems offers a wide range of linear bearings that provide smooth movement. Another advantage of these guidance systems: their attractive price. They are available in a range of diameters from Ø 3 mm to Ø 25 mm and are made of injected plastic segments (POM), as well as easy-to-clean stainless steel needles and balls. The needles have three roles: they hold the segments together, they serve as external tracks for the balls, and they define the diameter of the ball bushing. The plastic segments of MPS Microsystems DBL series linear bearings enable their use in environments with high temperature fluctuations.
Request for a quoteMPS MICRO PRECISION SYSTEMS AG
Switzerland
MPS Microsystems offers a complete range of high precision ball screws for positioning less than 5 µm. Mostly custom-made, these screws ensure smooth and uniform movement resulting from the high precision of their thread, achieved by grinding. Our ball screws are made exclusively of stainless steel and are fitted with double nuts to allow fine adjustment of the axial play. Moreover, an optional ogival thread can provide a higher static and dynamic load capacity. Thanks to a large number of options, we can ensure that the ball screw meets your technical and quality needs. The following parameters can be personalized: lubricant (grease, oil, dry lubrication, no lubrication), customized screw ends, shape and external dimensions of the nut and screw, multiple nuts on the same screw, left-hand thread, thread length, specific axial play, special surface treatment, and more.
Request for a quoteMPS MICRO PRECISION SYSTEMS AG
Switzerland
MPS Microsystems is specialized in manufacturing high-precision, miniature linear bearings. We offer a comprehensive range of exceptionally smooth bearings with bore diameters from Ø 2 mm to Ø 6 mm. The balls of these precision bearings meet ‘Grade 3’, the highest quality defined by the ISO 3290/DIN 5401 standard. Combined with a cage and a high precision casing, they allow rapid positioning while reducing friction and eliminating the stick-slip effect. The standard version of MPS Microsystems linear bearings consists of a stainless steel bushing and balls, and a brass cage. An all-stainless steel version or one with ceramic balls can be made on request.
Request for a quoteWIB SA
Switzerland
Packaging is a very important parameter for the retention of the bearing quality during transport and storage. It is designed to protect the bearings against corrosion, dust, and other pollutants. Apart from that, each unit is labeled and carries all the relevant information concerning the technical and quality features of the bearing. The production batch number is printed on the label and guarantees the traceability of the product, as well as the identification of the manufacturing date. Therefore, it is advisable to unpack the ball bearing only prior to use or assembly.
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Switzerland
The noise level is an important quality criteria of a ball bearing. It mainly depends on the following factors: precision of the geometric forms surface finish of the raceway and the balls cleanliness of the bearing type of lubricant type of cage rotational speed
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Switzerland
It is even possible to apply a coating on the outer ring, before assembling the bearing, thus guaranteeing the best possible geometrical forms. The machining of grooves ensures that the coating perfectly adheres to the metal surface. Additionally, a wider temperature range may be covered.
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Switzerland
By applying surface treatments on outer ring contact surfaces, it is possible to improve certain mechanical characteristics such as the hardness. By doing this, we can increase wear resistance while decreasing the friction coefficient. With certain treatments it is possible to achieve high resistance to specific chemical agents. The table below shows a small sample of examples of such surface treatments and their resulting technical characteristics.
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Switzerland
The resistance generated by the seal (if present), depending on the surface finish of the outside diameter of the inner ring, as well as of the rotational speed. The resistance generated by the cage, depending on the geometrical form and the machining quality of the cages. The resistance generated by the lubricant, depending on the lubricant viscosity and filling quantity as well as the rotational speed. At low speed and with fine instrument oil this resistance is insignificant. It will be higher at low temperatures and at high viscosity of the lubricant. Grease lubricated bearings will show, according to the grease type and filling, a much higher friction torque than oil lubricated bearings.
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Switzerland
The 100 Cr6 steel rings manufactured by WIB are stabilized after hardening by annealing. As a result of this treatment, they can be used at temperatures of up to 150°C. They have a hardness of 60 to 64 HRC For applications operating at high temperatures or in order to reduce their sensitivity to shock loads, it is necessary to stabilize the rings at higher temperatures after hardening. It should be noted that such a stabilization will slightly reduce the hardness of the rings.
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Switzerland
The radial clearance is not considered a quality criterion. An improper radial or axial clearance may have detrimental implications during operation within an application. This may include suboptimal noise levels, heat generation, rigidity, and fatigue life. Prior to recommending an internal clearance range, our applications will run an analytical simulation on the bearing and application to ensure optimal performance. For more complex system, our application engineers can complete a FEA analysis, particularly when evaluating multiple bearings within a non-rigid housing.
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Switzerland
The primary function of a lubricant is to lubricate the rolling and sliding contacts of a bearing to enhance its performance through the prevention of wear. This can be accomplished through various lubrication mechanisms such as hydrodynamic lubrication, electrohydrodynamic lubrication, and boundary lubrication.
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Switzerland
Certain applications call for special tolerancing to ensure optimal performance, which WIB is accustomed to accommodating. Dimensions that fall outside international standard will be identified with a PA designation, which appears in the descriptions and drawings. Special PA tolerances may be combined with standard tolerances when one or more tolerances are not referenced in the standards. These tolerances are shown on the bearing drawings as well. This is primarily used for bearings with profiles. For example: P0/PA
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Switzerland
Pairing is achieved with bearings of identical tolerance classes and by applying an axial preload to the inner rings for the O arrangement and on the outer rings for the X arrangement. The inner or outer rings are undergo a separate grinding operation to align both side faces on the same plane with minimum clearance.
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Switzerland
Cages are used to position and keep the balls distanced from each other at the pitch circle diameter. We offer a variety of different cage architecture and material tailor for each customer application. Cages are constructed of brass, steel, or synthetic materials. Brass and steel cages are manufactured at WIB. We also manufacturing our own tooling and can adapt cage designs to meet the requirements of the application. For certain applications, ball bearings without cages or full complemented bearings are manufactured.
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Switzerland
For certain applications, it may be appropriate to use ball bearings fitted with a snap ring fixed on the outer ring. The dimensions of the N groove and the snap ring R are are defined by the ISO 464 standard. The bearing is available in two versions, according to the customer’s requirements.
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WIB SA
Switzerland
Each bearing is designed around the application it is used in and sometimes that include a profile on the inner or outer ring. We have an array of profiles that we can use on our bearings, including common ones listed below or something completely unique to your application. In collaboration with our application engineers, we will work with you to ensure the right profile, tolerances, material, surface finish, and even the harmonics of the profile are fine-tuned to ensure quite operation, even at high speeds.
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Switzerland
To ascertain proper mounting of the bearing on the shaft and housing while ensuring maximum surface contact area, the proper fillet radius must be used. Too small and the bearing will not sit flush against the shoulder, too large and we forego precious surface area to reinforce the support. Done right, the optimal surface area is used while avoiding any chance of interference between the fillet and the shaft or housing.
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Switzerland
We offer a wide range of material depending on the needs of the application. When working with our application engineers, we will select the material type (and heat treatment method) to ensure the bearings meet the requirements of the application. This includes factors such as high wear resistance, heavy shock loads, extreme corrosion, as well as dimensional stability.
Request for a quoteWIB SA
Switzerland
At WIB, we produce all subcomponents, including inner and outer rings, brass and steel cages, as well as the shields to the highest quality standards. Our Performance Bearings are manufactured to ISO, ABMA, DIN, and BS international standards while our Custom Bearings are tailored specific for each application. The Performance Bearing nomenclature is described below.
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Switzerland
Only bearings specifically developed for each application will cope optimally with the required specifications. With our wide experience in the field of working with such challenges, WIB is uniquely positioned to offer the most appropriate solutions. We have developed application specific solutions through extensive R&D efforts carried out in collaboration with our customers. It is through such joint effort that the quality of the final product has been improved to constantly meet evolving market demands.
Request for a quoteWIB SA
Switzerland
As the leading manufacturer of linear guide system bearings, WIB works collaboratively with customers on the development of common and tailor designs, supplying the best-in-class technical and commercial solution for each unique application. Each parameter, including environmental factors, precision requirements, speed, temperature, load, boundary dimensions are thoroughly evaluated during the design and development phase.
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Switzerland
The manufacturing precision of the roller has a major influence on the quality of the final product (wires) as well as on the service life of the rollers. It is therefore essential that the ground “V” groove on the outer ring is machined and positioned precisely relative to the internal geometry. WIB only produces straightener roller bearings produced in this fashion, while many other producers machine the outer wire guide groove after assembly
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Switzerland
These track rollers offer the same features of a single row track roller with the added benefit of heavy radial, thrust or combined loads. Yoke-type track rollers are single or double-row units mounted on shafts or studs. Similar to the single row track roller, we can customize the running surface to meet the specific requirements of the applications. Cam rollers are similar in their construction to single and double-row support rollers, except that the raceway is formed by a heavy-section roller stud with a fixing thread. The most common running surface profiles can be found on the Special Profiles page under Technical Parameters.
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Switzerland
Track rollers—also referred to as idler rollers—are motion transmission components designed to work with all varieties of tracks. They are used in conveyor systems, cam drives, and a wide range of similar material handling systems. Regardless of the material or machine, these components play a critical role in track and rail operations. When selected, employed, and maintained properly, they facilitate system operations, allowing for greater speed and efficiency. Single row track rollers are available with spherical outer ring running surfaces or cylindrical (or flat) outer ring running surfaces. View our page of Special Profiles found under Technical Parameters for some of the more common profiles on the running surface.
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Switzerland
Self-aligning ball bearings have two rows of balls, a common sphered raceway in the outer ring and two deep uninterrupted raceway grooves in the inner ring. This type of ball bearing is recommended when alignment of the shaft and housing is difficult, and the shaft may flex. Unlike a single row or double row ball bearing, the self-aligning bearing’s performance will not be affected by misalignment. Therefore, they are particularly suitable for application where misalignment can arise from errors in mounting or shaft deflection inherent in the application. These bearings are made with seal or without seal.
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Switzerland
Double-row angular contact ball bearings are used in applications when heavy radial, thrust or combined loads demand axial rigidity of the shaft are required. This is similar to a duplex pair of single- row bearings due to its two rows of balls and angular-contact construction, which provide greater axial and radial rigidity than can be obtained by using a single-row radial bearing. We manufacture these ball bearings with a minimum bore diameter of 3 mm to a maximum outer diameter of 47 mm.
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Switzerland
Although single row radial bearings are designed primarily to support a radial load, they perform relatively well under thrust or combined radial and thrust load with the added advantage of low noise, vibration, and drag torque. The internal architecture and cage selection can be designed to meet the specific needs of the application, from high speed to high load. Thin section deep groove ball bearings have a small radial cross-sectional thickness that are used when compactness is required. We manufacture deep groove ball bearings with a minimum bore diameter of 3 mm to a maximum outer diameter of 47 mm.
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