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Boca Bearings Newsletter Archives


Boca Bearings Newsletter: Angular Contact Bearings Angular contact bearings are designed such that there is an angle between the races and the balls when the bearing is in operation. An axial load passes in a straight line through the bearing, whereas a radial load takes an oblique path that tends to want to separate the races axially. So the angle of contact on the inner race is the same as that on the outer race. Angular contact bearings are typically assembled with a thrust load or preload... Read More »			Boca Bearings Newsletter: Angular Contact Full Ceramic Bearings Full Ceramic Angular Contact Bearings are made entirely of ceramic material and are superior to common Steel Angular Contact Bearings in many ways. Ceramic is the perfect material for any application seeking to achieve higher RPM's, reduce overall weight or for extremely harsh environments where high temperatures and corrosive substances are present. Applications such as cryopumps, medical devices, semiconductors, machine tools, turbine flow meters, food processing equipment, robotics and optics... Read More »

Boca Bearings Newsletter:Dental Tool Bearings There are two basic types of dental ball bearings depending on the type of work that the tool is designed for. The first type is the Radial Bearing and the second type is the Thrust Bearing. Radial Bearings are designed for working in deep grooves and for angled dental surfaces. Radial Bearings have an inner ring, an outer ring, a series of balls and typically a cage to contain the balls. The second type of dental ball bearing is the Thrust Bearing... Read More »			Boca Bearings Newsletter:Double Row Bearings Double Row Deep Groove Ball Bearings have the same design as Single Row Deep Groove Ball Bearings. They have deep raceways with a high degree of contact between the ball and raceways. Double Row Deep Groove Ball Bearings are capable of handling both radial and axial loads and are suited to applications where higher load carrying capacity is necessary... Read More »

Boca Bearings Newsletter: Grooved Bearings Boca Bearings offers an assortment of grooved bearings for use in patio doors, pulleys, yoyos and other specialty applications. Grooved bearings come in three different styles: V-Groove, U-Groove and G-Groove... Read More »			Boca Bearings Newsletter: Insert Bearings Insert bearings and wide inner ring bearings are used for mounting on shafts without the need for shoulders or adapters. The bearing is locked in place through setscrews or a locking collar. UC Style Insert Bearings have an inner ring that extends on both sides of the bearing and SB Style Insert Bearings extend on one side. Both designs however are intended to provide extra shaft support. Sometimes insert bearings are simply standard... Read More »

Boca Bearings Newsletter: Insert Full Ceramic Bearings Full Ceramic Insert Bearings are made entirely of ceramic material and are superior to common Steel Insert Bearings in many ways. Ceramic is the perfect material for any application seeking to achieve higher RPM's, reduce overall weight or for extremely harsh environments where high temperatures and corrosive substances are present. Applications such as cryopumps, medical devices, semiconductors, machine tools, turbine flow meters, food processing equipment, robotics and optics... Read More »			Boca Bearings Newsletter: Matched Pair Bearings Matched Pair bearings are Angular contact ball bearings that are suitable for applications that require high accuracy and high-speed performance. Bearings with a smaller contact angle are more suitable for high-speed rotation; those with a larger contact angle are more suitable for high load applications. Angular contact ball bearings are often preloaded to enhance their rigidity and rotating performance. For high-precision matched pair angular contact ball bearings of class 5 or higher... Read More »

Boca Bearings Newsletter: Mounted Unit Bearings Flange mounted bearings are used when a shaft axis is perpendicular to the bearing mounting surface. Available in 2, 3, or 4-hole configurations, flange mounted bearings provide a method of accurate mounting fits and load support. 2-bolt flanged bearings have a diamond shaped flange with 2 mounting holes. Most 3-bolt flanged bearings have a circular mounting flange with three... Read More »			Boca Bearings Newsletter: Needle Bearings Needle bearings use a roller style rolling element to reduce friction of a rotating surface. Needle Bearings have a high load carrying capacity with a very small cross section height. They are available with or without an inner ring. The needle rollers are guided parallel to the axis using a cage retainer, thrust bearings can also be supplied with no retainer, which is referred to as a full complement of rollers... Read More »

Boca Bearings Newsletter: O'Rings An O'ring is a mechanical gasket in the shape of a circle; it is a loop of pliable material with a disc-shaped cross-section, designed to be seated into a groove and compressed during assembly between two or more parts, creating a seal... Read More »			Boca Bearings Newsletter: Oil Seals Oil seals have a flexible lip that rubs against a shaft or housing to prevent the leakage or contamination of fluids and debris. For proper installation, the seal lip should point towards the lubrication being contained. Some oil seals have a spring to help keep the lip in contact with the shaft. The sealing orientation and direction is important to consider for oil seals and grease seals... Read More »

Boca Bearings Newsletter: One Way Bearings Drawn cup needle roller clutches have a small radial section height and are also commonly known as One Way Bearings or Anti-Reverse Bearings. This design uses the same small radial section as drawn cup needle roller bearings which make better use of available space. The units are compact, lightweight and operate directly on a shaft; they are also suitable for transmitting high torque... Read More »			Boca Bearings Newsletter: Oil Filled Bushings Oil Filled Bushings are an oil impregnated powder metal bushing. 15% of the weight of the bushing is the oil that has been impregnated by using hot oil and a vacuum system under pressure. The air is sucked out of the powder metal bushing pores creating a void that is then filled with oil. Over time oil leaves the bushing. Oil comes out by centrifugal force, heat and leaching out if improperly stored... Read More »

Boca Bearings Newsletter: Plastic Bearings Engineers often hesitate to use Plastic Bearings in their designs, because they have trusted steel bearings for years or they just don\'t think plastics can handle demanding applications or environments. Plastic Bearings, however, can endure extreme temperatures, heavy loads and high speeds. Some other benefits to Plastic Bearings are listed below... Read More »			Boca Bearings Newsletter: Pressure Roller Bearings Pressure Roller Bearings are coated with urethane rubber and fixed by special processing on its outer ring to keep its rotation accuracy. Under the proper radial loading, the coefficient of friction and hardness of rubber are useful for handling paper or for carrying mechanisms, guide bearings and idle bearings. Pressure Roller Bearings are commonly used in desktop and industrial printers, ATMs, robotics and more... Read More »

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