WIB SA - Precision Redefined for a World in Motion

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.

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.

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.

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.

Closures, more commonly known as shields and seals are used to protect the internal parts of the bearing against dust, liquid, and gaseous particle contamination. The shields help contain the lubricant in the bearing but are not designed to keep out liquid and gaseous contamination. We manufacture our own shields at WIB to the precise tolerance to minimize the opening gap, thereby offering great grease retention and longer life. On the other hand, seals are designed to keep various types of contamination out, keeping the grease clear of foreign particles and extending the bearing life.

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.

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.

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.

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

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.