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With the igubal® type series, a complete system of self-aligning bearing elements are available for the design engineer: Rod end bearings, clevis joints, flange bearings, spherical bearings and pillow block bearings.
igubal® self-aligning bearings are easy to mount, suit all angular variations and in many cases can be replaced by special housings.
The igubal® user utilizes all advantages of the employed high performance plastics. They have excellent vibration dampening properties, and are technically applicable in dry operation. They are insensitive to dirt, can operate in liquids and even in chemicals and are completely resistant to corrosion.
Bearing elements of the igubal® type series are very light, save installation space by their dimensions and save your costs twice: first in procurement and second in operation by the saving of maintenance and installation costs.
Special properties of the igubal® rod end bearings
- Maintenance-free dry operation
- High stiffening
- Very high fatigue strength in varying loads
- Compensation of misalignments
- Compensation of edge loads
- Insensitive to dirt, dust and lint balls
- Resistant to corrosion and chemicals
- High dampening properties
- Suitable for rotary, oscillating and linear movements
- Very low weight
- Dimensional series K and E, dimensions according to DIN ISO 12240
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Model SB
The most widely used series. Used for heavy loads since the spherical contact area has a large width. The outer ring is split at two points, enabling the inner ring to be accommodated.
Model SA1
This type of Spherical Plain Bearing is widely used in Europe. The outer ring is split at one point, and the width and thickness are smaller than model SB. Thus, this model can be used in small space.
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RBC has been a pioneer in spherical plain bearing technology since
inventing the fractured outer race design many years ago. Since that
time, RBC has continued to introduce industry leading innovations such
as high misalignment, angular contact, extended inner ring, tapered
bore, and extended lubrication groove spherical plain bearing designs.
These advanced products are used wherever pivoting, high load bearing
applications are found. Most typically, RBC spherical plain bearings
are employed in hydraulic cylinder rod ends, vehicle suspensions,
heavy equipment articulated joints, and other severe duty uses.
Industries served include off-highway mobile construction equipment,
large agricultural machinery, mining equipment, forestry products, and
other large equipment requiring bearings that provide misalignment
capabilities while carrying high loads.
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Description of bearing types
Male, female or spherical bearings are ready-to-use mechanical components, based on the journal bearing principle.
These components are used in mechanical construction to transmit static or dynamic forces at different angles.
Male and female bearings are sometimes called tips or ends.
Spherical bearings are sometimes just called bearings.
The design of bearing components is governed by the DIN / ISO 12240 standard, which also specifies the overall and interface dimensions and with neighbouring mechanical components.
Bearing components can be self-lubricating or fitted with grease nipples.
Spherical bearings supplement ball bearings or other casings in slow movements. They are also ale to withstand high loadings because of the larger surfaces in contact..
The body of spherical bearings can be made from various materials: standard steel, high grade steel, stainless steel or aluminium
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Radial spherical plain bearings
Radial spherical plain bearings comprise inner and outer rings with maintenance-free sliding layers of ELGOGLIDE®, PTFE composite or PTFE-bronze film. They can support slight axial forces as well as radial forces and are suitable for alternating dynamic loads. Sealed spherical plain bearings are protected against contamination and spray water by lip seals. Large spherical plain bearings of d = 320 mm and above belong to the premium grade X-life.
Axial spherical plain bearings
Axial spherical plain bearings comprise shaft and housing locating washers with ELGOGLIDE®. They are preferably used to support axial forces and are suitable as support or base bearings. Large spherical plain bearings of d = 220 mm and above belong to the premium grade X-life.
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Steel manufacture with optional PTFE liner available. Improved wear life for use in wide range of temperatures and environments where full rod end is not appropriate - from heavy construction to racing.
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Pivoting bearings DIN ISO 12240-1 (DIN 648)
Rod ends and pivoting bearings are some of the most frequently used linking elements in industry. These parts can be found everywhere where simple movements are required, e.g. linear pulling, pushing or even axle offset compensation. The linking technology specialist, mbo Osswald, provides a particularly wide application range with a whole assortment of different rod ends and pivoting bearings.
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The CBA Series
The CBA Series, NBA Series and PBL Series together form Alinabal's light spherical bearings line. The CBA Series features a single fractured race and a self lubricating ball. The ball and race are precision ground to assure maximum bearing surface in the load zone
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IKOSpherical Bushings are self-aligning spherical plain bushings that have inner and outer rings with spherical sliding surfaces, and can take a large radial load and a bi-directional axial load at the same time. There are many types of Spherical Bushings, but they are basically divided into steel-on-steel types and maintenance-free types according to the kind of sliding surfaces. Steel-on-steel Spherical Bushings have inner and outer rings of high carbon chromium bearing steel, of which sliding surfaces are phosphate-treated and then dry-coated with molybdenum disulfide (MoS2). They can, therefore, operate with low torque, and have excellent wear resistance and large load capacity. They are especially suitable for applications where there are alternate loads and shock loads. They have wide applications mainly in industrial and construction machinery. Maintenance-free Spherical Bushings consist of an outer ring which has a special PTFE liner reinforce with copper alloy meshes on the sliding surface, and a spherical inner ring of which sliding surface has a hard chromium plating. Creep deformation due to compressive load is small, and wear resistance is superior. Thus, they are maintenance-free and can be used for extended periods of time without re-lubrication. They are especially suitable in cased where fixed directional loads are applied and are used mainly in food processing machines and construction machinery and in other applications in which the use of oil is undesirable or lubrication is not possible.
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OILES 500 Spherical Bearing
Unit Bearing
STANDARD PRODUCT
CUSTOMIZED PRODUCT
Self adjustable type unit bearing applicable to high loads
OILES 500 Spherical Bearing is a self adjustable type unit bearing using OILES 500SP for inner ring and high-carbon chrome bearing steels for outer ring. Coated with molybdenum disulfide. The outer ring is composed of two parts, stabled by a snap ring.
Features:
- According to ISO specification E type with compatible dimensions.
- High in precision.
- Adjustable for large oscillating angle coping with oscillating motion directed to circumference.
- Lasting extremely long without lubrication.
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CEROBEAR hybrid spherical bearings offer a low-play and low-friction bearing for highly stressed, three-dimensional mobile joints.
The inner ring of a hybrid spherical bearing can be made of the high-performance ceramic materials silicon nitride (Si3N4) or zirconia (ZrO2). Various stainless aviation steels are used for the outer ring.
The material combination ceramic/steel means that no liner is needed for the sliding contact surfaces, thus producing unbeatable stiffness with minimum friction.
CEROBEAR hybrid spherical bearings are characterized by the following properties:
■ low friction
■ extreme stiffness
■ minimum radial play
■ high load-bearing capacity
■ low wear
■ reduced weight
■ suitable for starved lubrication and dry running
■ prolonged service life
CEROBEAR hybrid spherical bearings are available in standard series or in customized designs for your particular application case.
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The sixteen series of Aurora spherical bearings all incorporate the single-piece race type construction, providing excellent ball-to-race conformity and structural integrity, along with the advantages of metal-to-metal contact between bearing components. Standard race materials are low carbon, heat treated alloy or stainless steel. Balls are precision ground alloy or stainless steel. Metal on metal race units can be re-lubricated through an annular groove in the outer race with two interconnecting holes positioned at 180 degrees, while a self-lubricating PTFE to metal interface may also be optionally specified in many series. Inch or imperial sizes range from 3/16 inch through 6 inch bore, metrics from 3 through 160 mm. In addition to catalog offerings, non-standard materials substitutions and dimensional modifications are possible, to meet specific customer application requirements.
Inch
Aurora Bearing Company produces over a dozen lines of inch dimension spherical bearings. All series, from the economy, light section fractured race GEZ series through the high performance PNB and PWB series feature precision ground heat treated alloy steel balls, and one-piece steel raceway construction. Race materials include low carbon, and heat treated alloy or stainless steels.
Metric
Aurora Bearing Company produces three lines of metric spherical bearings. All feature one-piece steel raceways for maximum structural integrity. Aurora COM-M series bearings are available in sizes from 3mm to 30mm and follow the dimensions of DIN 648 schedule K. Light section fractured race GE series are available in sizes from 12 through 160 mm.
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Spherical Bearings
Alinabal manufactures a complete line of bearings for a variety of needs. Some of our most popular are described below. For more information, a complete catalog, a quote or for custom made parts, please contact us at 1-800-254-6763.
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DIN ISO 12240
Outer race: sintered steel, self-lubrificating impregnated with oil
Ball: bearing steel, hardened, grinded and polished
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IKO Spherical Bushings are self-aligning spherical plain bushings that have inner and outer rings with spherical sliding surfaces, and can take a large radial load and a bi-directional axial load at the same time. There are many types of Spherical Bushings, but they are basically divided into steel-on-steel types and maintenance-free types according to the kind of sliding surfaces. Steel-on-steel Spherical Bushings have inner and outer rings of high carbon chromium bearing steel, of which sliding surfaces are phosphate-treated and then dry-coated with molybdenum disulfide (MoS2). They can, therefore, operate with low torque, and have excellent wear resistance and large load capacity. They are especially suitable for applications where there are alternate loads and shock loads. They have wide applications mainly in industrial and construction machinery. Maintenance-free Spherical Bushings consist of an outer ring which has a special PTFE liner reinforce with copper alloy meshes on the sliding surface, and a spherical inner ring of which sliding surface has a hard chromium plating. Creep deformation due to compressive load is small, and wear resistance is superior. Thus, they are maintenance-free and can be used for extended periods of time without re-lubrication. They are especially suitable in cased where fixed directional loads are applied and are used mainly in food processing machines and construction machinery and in other applications in which the use of oil is undesirable or lubrication is not possible.
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HIRSCHMANN Rod Ends and Spherical Bearings are bearing elements on a plain bearing basis. They are standardized according DIN 648 / ISO 6126 and CETOP. They are used for static and dynamic power transmission, and have proved their worth in millions of instances.
HIRSCHMANN Rod ends and Spherical bearings are supplied in metric measurements with bore diameters of 2 - 50mm. They are available as relubricatable or maintenance free parts.
HIRSCHMANN maintenance free Rod Ends and Spherical Bearings are also available in complete stainless steel (NIRO, 100% non-ferrous metal free) version.
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Aerospace applications demand bearings that deliver exceptional durability, ensuring a consistently superior performance despite changes in temperature and air pressure. Accordingly, aerospace firms impose stringent standards. In addition to meeting MIL standards - U.S. military standards for design and performance commonly applied to commercial aircrafts, Minebea has obtained certification from commercial aircraft manufacturers in Japan, the U.S. and Europe, the world's three largest private-sector aerospace market.
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Radial spherical plain bearings have an inner ring with a sphered convex outside diameter and an outer ring with a correspondingly sphered but concave inside surface.Their design makes them particularly suitable for bearing arrangements where alignmentmovements between shaft and housing have to be accommodateed,or where oscillating or recurrent tilting or slewing movements musr bepossible at relatively slow sliding speeds.
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Order number Download Diameter d Diameter D B C
SOBS-015 15 26 12 9
SOBS-020 20 32 16 14
SOBS-025 25 42 21 18
SOBS-030 30 50 27 23
SOBS-035 35 55 30 26
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Sealmaster® Precision Series Spherical Bearings
* Sealmaster precision series spherical bearings are available in a wide variety of options:
* Bore size from 3/16" to 1"
* Carbon and stainless steel
* Six series
* Sealed and unsealed
* SBG series:
o Bronze outer race for low coefficient of friction
o Alloy steel, heat treated, chrome plated ball for wear resistance properties
* SBG-S series:
o Alloy steel, heat treated outer race with protective coating for corrosion resistance
o Alloy steel, heat treated, chrome plated ball for wear resistance properties
* SBG-SS series:
o Stainless steel outer race for corrosion resistance
o Stainless steel, heat treated ball for for corrosion resistance
* SBG-SA series:
o SBG-S with groove in ball ID and interconnecting hole to facilitate lubrication from the shaft into the bearing
* COR series:
o Stainless steel, heat treated outer race for strength and corrosion resistance
o Stainless steel, heat treated ball for for corrosion resistance
* FLBG series:
o Carbon steel outer race with protective coating for corrosion resistance.
o Bronze race
o Alloy steel, heat treated, chrome plated ball for wear resistance properties
* Outer race lubrication grooves and interconnecting hole in outer race to direct grease to the ball and race area
* Outer races are chamfered to facilitate installation and retention into housings
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