Deep groove ball bearings

Deep Groove ball bearings are the most popular of all the ball bearing types because they are available in a wide variety of seal, shield and snap-ring arrangements.

The bearing ring grooves are circular arcs made slightly larger than the radius of the ball. The balls make point contact with the raceways (elliptical contact when loaded). The inner ring shoulders are of equal height (as the outer ring shoulders).

Deep Groove ball bearings can sustain radial, axial, or composite loads and because of simple design, this bearing type can be produced to provide both high-running accuracy and high-speed operation

These bearings are the most common type and are used in a wide variety of applications

Angular Contact Ball Bearings

Precision angular contact ball bearings provide the perfect solution for applications requiring high run-out accuracy of rotating machine parts, such as the machine tool main spindles, or the application of faster rotating speeds

The raceways of both the inner and outer rings of this bearing type are made with a set contact angle.

Single-row Angular Contact ball bearings can sustain radial, axial or composite loads, however, any axial load must be in one direction. Larger contact angle type has better axial load capability. Small contact angle type has higher permissible speed capability.

This bearing type is generally used in adjacent positions.

Self-aligning ball bearings

This type of ball bearing is recommended when alignment of the shaft and housing is difficult and the shaft may flex. The outer ring has a spherical raceway and its center of curvature coincides with that of the bearing; therefore, the axis of the inner ring, balls and cage can deflect to some extent around the bearing center. Pressed steel cages are usually used. Since the contact angle is small, the axial load capacity is low. Self-aligning ball bearings generate less friction than any other type of rolling bearing, which enables them to run cooler even at high speeds.

Cylindrical roller bearings

In bearings of this type, the cylindrical rollers are in linear contact with the raceways. They have a high radial load capacity and are suitable for high speeds.

There are different types designated as NU, NJ, NUP, N, NF (for single-row bearings), NNU, and NN (for double-row bearings depending on the design or absence of side ribs).

The outer and inner rings of all types are separable.

Some cylindrical roller bearings have no ribs on either the inner or outer ring, so the rings can move axially relative to each other. These can be used as free-end bearings. Cylindrical roller bearings, in which either the inner or outer rings has two ribs and the other ring has one, are capable of taking some axial load in one direction Double-row cylindrical roller bearings have high radial rigidity and are used primarily for precision machine tools.

Pressed steel or machined brass cages are generally used, but sometimes molded polyamide cages are also used.

Tapered Roller Bearings

Bearings of this type use conical rollers guided by a back-face rib on the cone. These bearings are capable of taking high radial loads and axial loads in one direction.

In the HR series, the rollers are increased in both size and number giving it an even higher load capacity. They are generally mounted in pairs in a manner similar to single-row angular contact ball bearings. In this case, the proper internal clearance can be obtained by adjusting the axial distance between the cones or cups of the two opposed bearings. Since they are separable, the cone assemblies and cups can be mounted independently.

Depending upon the contact angle, tapered roller bearings are divided into three types; normal angle, medium angle, and steep angle.

Double-row and four-row tapered roller bearings are also available. Pressed steel cages are generally used.

Spherical Roller Bearings

The spherical raceway of outer rings are manufactured and assembled focusing to the center of bearings. Barrel type rollers and cages are assembled with inner rings.

Spherical Roller Bearings are suitable for high axial , impulse and heavy load applications such as paper manufacturing, rolling and other large size machineries.

Thrust Ball Bearings

Thrust ball bearings are classified into those with flat seats or aligning seats depending on the shape of the outer ring seat (housing washer). They can sustain axial loads but no radial loads. For Single-Direction Thrust Ball Bearings, pressed steel cages and machined brass cages are usually used The cages in Double- Direction Thrust Ball Bearings are the same as those in Single-Direction Thrust Ball Bearings of the same diameter series.


1.Available in two designs: single direction and double direction.

2.To accommodate initial misalignments in an assembly both designs are available with spherical aligning seats or aligning seat washers.

Bearing housings

To ensure effective sealing, plummer blocks are available with a variety of special sealing options and end covers. Benefits include a facility for easy mounting and dismounting of pre-assembled shafts.

Plummer block housings can be used with high-capacity spherical roller bearings or self-aligning ball bearings. They are manufactured from high-strength cast iron as standard but are also available in cast steel or spheroidal graphite cast iron. The housings have a re-lubrication facility and can be used with either oil or grease lubrication.

Ball Bearing Units

Pillow Blocks

Pillow blocks with bearings mounted in rigid housings of simple construction are the most common bearing units. They are extensively used for various kinds of transmission equipment and machinery.

Square Flanged Units

These bearing housings have square flange which can be easily attached to a machine with four bolts. With its simple mounting face, this bearing unit is widely used.

Oval Flanged Units

These bearing housings have oval flanges which can be easily installed onto a machine with two bolts. This type of bearing unit is suitable where mounting space is limited or where it is necessary to minimize the distance between shafts. The distance between bolt holes of an oval flange type is generally equal to the distance between bolt holes diagonal position of square flange type.

Needle Roller Bearings

Needle Roller Bearings are roller bearings with cylindrical rollers that are small in diameter. In spite of their low cross section, needle roller bearings have a high load carrying capacity and are therefore extremely suitable for bearing arrangements where radial space is limited. Needle roller bearings in different designs and a wide range of sizes, which are appropriate for different applications.

Linear Motion Bearings

Linear Bearing enable high precision linear motion on round shafts by utilizing recirculating ball pathways. The recirculation curve enables linear bearing to sustain heavy loads to sustain low noise and high stiffness. Diverse line of linear bearing perform under almost any environmental conditions and load capacities to satisfy wide range of applications.

Spherical Roller Thrust Bearings

Spherical roller bearings have two rows of rollers, a common sphere outer ring raceway and two inner ring raceways inclined at an angle to the bearing axis. The centre point of the sphere in the outer ring raceway is at the bearing axis. Therefore, the bearings are self-aligning and insensitive to misalignment of the shaft relative to the housing, which can be caused, for example, by shaft deflection. Spherical roller bearings are designed to accommodate heavy radial loads, as well as heavy axial loads in both directions.

Bearing Housings

Bearing Housings together with appropriate bearings constitute economic, interchangeable bearing units that meet the demand for designs that are easy to maintain. As a leading supplier of rolling bearings, also produces bearing housings in a wide range of designs and sizes that are based on experience collected in all industrial areas.

Bearing housings have the following advantages:

Large assortment of design and sizes.

High quality of design and manufacturing.

Worldwide availability.