Brabus Precision Bearing

28/06/2023

27/06/2023

The bearing cage is a bearing part that wraps the rolling elements and moves with it. It is mainly used to isolate the rolling elements and usually guides the rolling elements and keeps them in the bearing.

25/06/2023

The primary use of a bearing is to allow one part to rotate relative to another according to a defined axis of rotation. Although bearings, when their type and rating have been carefully evaluated, have a long service life, their destruction can cause catastrophic damage to the equipment on which they are installed.
1. Incorrect lubrication
According to studies, inadequate lubrication is the primary cause of bearing failure. The bearings must be lubricated with the appropriate l**e for the proper application. The speed of rotation, the ambient temperature and the load applied to the bearing will all be key factors when choosing the correct l**e and to ensure the bearings longevity.

2. External contamination
The cleanliness of the lubricant is of paramount importance. In fact, a bearing that contains grease contaminated by dust or even metal chips will not last very long. These particles cause premature wear, grooves and eventually chipping. An increase in noise and vibration follows, then a change in the critical dimensions. The chipping then increases rapidly, until catastrophic failure.

3. Electrical damage
When a bearing is exposed to electrical currents, an arc is formed through the thin film of oil at the points of contact between the bearing raceways and the rolling elements. Lines of discoloration in the case of roller bearings or punctures in the case of ball bearings then appear on the raceways. Since the bearing is constantly moving, the point of contact changes, and it is for this reason that it will eventually be completely discoloured and rendered unusable.

4. Premature fatigue
Fatigue is a natural cause that can lead to bearing failure. Over time, it is normal for a bearing to wear out and reach its fatigue level which is when replacement is required.
Chipping is a sign of premature bearing fatigue. It is usually due to an application that is more extreme than the bearing was designed for. Chipping can occur on the inner or outer raceway. This phenomenon causes a sharp increase in vib

20/06/2023

Pillow Block Bearing

19/06/2023

Features of tapered roller bearing
The tapered roller bearing consists of an inner ring, an outer ring, tapered rollers and a window cage which serves to hold the rollers in place. Generally, the inner ring, the tapered rollers and the cage that form the cone are all in one piece that can be mounted separately from the outer ring.

The tapered angle allows the tapered roller bearing to support large axial and radial loads in one direction. It is generally necessary to provide axial guidance in the other direction by opposing a second bearing. It is also the angle and the axis of the bearing which determine the ratio between the axial capacity and the radial capacity.

The tapered roller bearing must be serviced. It must therefore be regularly lubricated with grease or oil. It can be used in a variety of environments with temperatures ranging from -30 ° C to +120 ° C. Breakage may occur if the tapered roller bearing moves in extreme temperatures.



Its main applications
The tapered roller bearing is used in many industrial applications. It is ideal for guides that have to undergo extreme loads. It is also found in applications where radial loads are important and rotational speeds are high.

Tapered roller bearings are essential in sectors such as agriculture, construction, mining, engines and propellers. At the industrial level, paper mills, cement plants and oil companies are some examples of environments where tapered roller bearings are found.



Types of tapered roller bearing
Although they are very similar, there are several models of tapered roller bearing, each with certain features. The single row tapered roller bearing is the simplest and most frequently used model. Generally mounted in pairs, it consists of a cone and a cup. There is a variant of this model where the cup is provided with a collar to facilitate axial positioning.

The two-row tapered roller bearing consists of a double cone and two cups. The configuration of this type of bearing ensures a significant effective separ

16/06/2023

Radial bearings, bearings for predominantly radial load
Deep groove ball bearing, open
Angular contact ball bearing
Cylindrical roller bearing NU
Tapered roller bearing
Spherical roller bearing

15/06/2023

PRECISION ANGULAR CONTACT BEARINGS
Offer high stiffness
Ability to carry axial forces in one direction
Tolerances are typically in the Abec 7 to Abec 9 range
Non-separable
Can be provided in a single fashion, pairs, tri-sets or quad sets
PRECISION CYLINDRICAL ROLLER BEARINGS
Supplied in either single or double row
Single row design is ideal for higher speed applications
Double row design is ideal for higher rigidity
Cylindrical rolling element allows for higher load carrying capacity throughout the bearing
Can be offered with a tapered bore design
BALL SCREW SUPPORT BEARINGS
Precision angular contact ball bearings
Can be made with a large or small design
Ceramic hybrid design bearings are available upon request
Ideal for high rigidity applications
CROSSED ROLLER BEARINGS
High load capacity
Can receive radial, axial, and moment loads in all directions
High torsional stiffness
OTHER STYLES OF PRECISION CYLINDRICAL PRODUCT INCLUDE COMBINATION PRODUCTS SUCH AS
Needle Roller Bearings
Axial Cylindrical Roller Bearings
Axial Radial Bearings

14/06/2023

Some engineers see lubricants as a straightforward, messy ancillary of the industrial age. However, much like rolling-element bearings themselves, lubrication is an ancient technology that’s highly engineered in modern forms. In fact, engineers have used fluids to reduce friction thousands of years, but the advent of the oil industry in the late 19th century spurred modern bearing lubrication. Today, bearing lubricants serve several functions:

Creating a barrier between rolling contact surfaces
Creating a barrier between sliding contact surfaces
Protecting surfaces from corrosion
Sealing against contaminants
Providing heat transference (in the case of oil lubricant)

Lubricants take the form of either oil or grease. Oil lubricants are most common in high speed, high-temperature applications that need heat transfer away from working bearing surfaces. Bearing oils are either a natural mineral oil with additives to prevent rust and oxidation or a synthetic oil. In synthetic oils the base is usually polyalphaolefins (PAO), polyalkylene glycols (PAG) and esters. Although similar, synthetic and mineral oils offer different properties and are not interchangeable. Mineral oils are the more common of the two.

The most important characteristic when specifying oil for a bearing is viscosity. Viscosity is a measure of a fluid’s internal friction or resistance to flow. High-viscosity fluids are thicker like honey; low-viscosity fluids are thinner like water. Engineers express fluid resistance to flow in Saybolt Universal Seconds (SUS) and centistokes (mm2/sec, cSt). The difference in viscosity at different temperatures is the viscosity index (VI). An oil’s viscosity is correlative to the film thickness it can create. This thickness is crucial to the separation of the rolling and sliding elements in a bearing. Bearings in some applications use oil, but grease is the lubricant of choice for 80 to 90% of bearings.
Grease consists of about 85% mineral or synthetic oil with thickeners rounding out the rest of the grease volume.

The thickeners are usually lithium, calcium or sodium-based metallic soaps. Formulations for higher-temperature applications often include polyurea. The higher viscosity of grease helps contain it within the bearing envelope. The most important considerations when choosing a grease are the base oil viscosity, rust-inhibiting capabilities, operating temperature range and load-carrying capabilities.

13/06/2023

Bearings are used to help reduce friction. Metal-upon-metal contact produces large amounts of friction. The friction adds to wear and tear of the metal, producing grinding that slowly degrades the metal. Bearings reduce friction by having the two surfaces roll over each other, reducing the amount of friction produced. They consist of a smooth metal ball or roller that rolls against a smooth inner and outer metal surface. The rollers or balls take the load, allowing the device to spin.

The load acted upon a bearing is either a radial or thrust load. Depending on the location of the bearing in the mechanism, it can see all of a radial or thrust load or a combination of both. For example, the bearing in the wheel of your car supports a radial and a thrust load. The weight of the car on the bearing produces a radial load while the thrust load is produced as the car turns a corner. Here we will examine some types of common bearings.

13/06/2023

09/06/2023

Brabus Bearing Factory