FKL India Pvt Ltd Bara Bazar, Kolkata, West Bengal

Both the Adapter and the Withdrawal Sleeves have cylindrical bore and tapered outer surface, with threading on one side of the outer surface, and are slit along the length. While the Adapter Sleeve has the threading on the small diameter side of the taper, the Withdrawal Sleeve has the threading on the larger diameter side. Thus, the Adapter Sleeve facilitates easy mounting of the bearing, while the Withdrawal Sleeve is normally used to ensure easy dismounting of the bearing, hence it's name. An Adapter Sleeve assembly consists of the Sleeve, a Lock Nut and a Lock Washer, because the Lock Nut is needed first to drive the bearing up the tapered sleeve, and then to lock it in position with the help of the Lock Nut. A Withdrawal Sleeve, on the other hand, does not necessarily need the Lock Nut and the Lock Washer for it's assembly with the bearing and the shaft, and hence is supplied without them. However, a Withdrawal Nut may required to remove the Withdrawal Sleeve from the bearing, and in that case, it has to be ordered separately.

Vibratory screens are used for grading i.e. separation of solid materials by grain size of materials. Other vibratory machineries like the road rollers and saw frames are also among the machines which are subjected to severe stress. High loads, high speed, acceleration, and centrifugal forces are strongly supported by the rolling bearings in the exciter units of these machines. These applications may also involve unpleasant ecological effects such as contamination and moisture.

A combination of the radial ball bearing and, seal and a housing of grade cast iron oppressed steel and is known as a bearing unit. These come in various shapes. The spherical nature of the outer and the internal surface helps the unit in self-aligning.

A combination of the radial ball bearing and, seal and a housing of grade cast iron oppressed steel and is known as a bearing unit. These come in various shapes. The spherical nature of the outer and the internal surface helps the unit in self-aligning.

A rolling-element bearing, which is also known as a rolling bearing, carries a load by placing rolling elements (such as balls or rollers) between two bearing rings called races permitting rotation with low friction and angular misalignment. The bearing is mainly designed for high radial loads and heavy axial loads in a single direction. Typically, these bearings tend to support a rotating shaft in the bore of the shaft washer which can sometime get misaligned in respect to the housing washer. The misalignment can occur due to the spherical internal shape of the house washer.

A rolling-element bearing, which is also known as a rolling bearing, carries a load by placing rolling elements (such as balls or rollers) between two bearing rings called races permitting rotation with low friction and angular misalignment. The bearing is mainly designed for high radial loads and heavy axial loads in a single direction. Typically, these bearings tend to support a rotating shaft in the bore of the shaft washer which can sometime get misaligned in respect to the housing washer. The misalignment can occur due to the spherical internal shape of the house washer.

A thrust bearing is a typical rotary rolling-element bearing. This bearings permits rotation between parts but are designed to support a predominant axial load. The varieties of thrust bearings are Thrust Ball Bearings, Cylindrical Thrust Roller Bearings, Taper Roller Thrust Bearings, Spherical Toller Thrust Bearing, Fluid Bearings and Magnetic Bearings. In most cases it is seen that the Thrust Bearings are generally used in cars as the forward gears in modern car gearboxes use helical gears which boosts the smoothness and curtails unnecessary noise. This causes axial forces and needs to be dealt with. Apart from this, Thrust Bearings are also used with radio antenna masts to cut down load on an antenna rotator. A significant citation of Thrust Bearing in an automobile is the clutch “throw out” bearing, also known as the clutch release bearing.

Tapered Roller Bearings are separable. The bearing comprises of outer ring, inner ring, and roller assembly and contains the rollers and a cage. While the non-separable inner ring and roller assembly is known as the cone, the outer ring is called the cup.

FKL provides comprehensive solution with a wide assortment of roller and ball bearings for diverse applications. The effort usually goes out to the direction to abate the downtime production and increase profitability by greater productivity. FKL split roller bearings are a solution, especially for applications where mounting and dismounting process of a bearing leads to a huge loss in productivity, which is rather time consuming. FKL manufactures split cylindrical roller bearing up to 600 mm bore diameter and split spherical roller bearings up to 1120 mm bore diameter.

A rolling-element bearing, which is also known as a rolling bearing, carries a load by placing rolling elements (such as balls or rollers) between two bearing rings called races permitting rotation with low friction and angular misalignment. The bearing is mainly designed for high radial loads and heavy axial loads in a single direction. Typically, these bearings tend to support a rotating shaft in the bore of the shaft washer which can sometime get misaligned in respect to the housing washer. The misalignment can occur due to the spherical internal shape of the house washer.

A Spherical Roller Bearing is a rolling-element bearing. This bearing permits rotation with low friction and angular misalignment. This bearing supports a rotating shaft in the bore of the inner ring, but may get misaligned with respect to the outer ring. The misalignment can be either of spherical internal shape of the outer ring or the spherical rollers.

Spherical Plain Bearings consists of an inner ring with sphere convex outside surface and an outer ring with a corresponding sphere, but has concave inside surface. Their design makes them suitable for bearing arrangements particularly where alignment movements between shaft and housing has to accommodate, or where oscillating or recurrent tilting movements must be permitted at relatively slow sliding speeds.

Spherical Plain Bearings consists of an inner ring with sphere convex outside surface and an outer ring with a corresponding sphere, but has concave inside surface. Their design makes them suitable for bearing arrangements particularly where alignment movements between shaft and housing has to accommodate, or where oscillating or recurrent tilting movements must be permitted at relatively slow sliding speeds.

A roller bearing having a tapered bore is mounted on a straight shaft using either an Adapter Sleeve assembly, or a Withdrawal Sleeve. Mounting a bearing on a sleeve also permits maximum flexibility in the axial positioning of the bearing on the shaft and can accommodate light locational thrust loads. An Adapter or a Withdrawal Sleeve mounted bearing requires the correct reduction of Radial Internal Clearance of the bearing so as to prevent relative motion amongst the bearing inner ring, the sleeve and the shaft. Non-compliance with proper mounting procedures will invariably lead to hot running of the bearing and subsequently to it's premature failure. Both the Adapter and the Withdrawal Sleeves have cylindrical bore and tapered outer surface, with threading on one side of the outer surface, and are slit along the length. While the Adapter Sleeve has the threading on the small diameter side of the taper, the Withdrawal Sleeve has the threading on the larger diameter side. Thus, the Adapter Sleeve facilitates easy mounting of the bearing, while the Withdrawal Sleeve is normally used to ensure easy dismounting of the bearing, hence it's name. An Adapter Sleeve assembly consists of the Sleeve, a Lock Nut and a Lock Washer, because the Lock Nut is needed first to drive the bearing up the tapered sleeve, and then to lock it in position with the help of the Lock Nut. A Withdrawal Sleeve, on the other hand, does not necessarily need the Lock Nut and the Lock Washer for it's assembly with the bearing and the shaft, and hence is supplied without them. However, a Withdrawal Nut may required to remove the Withdrawal Sleeve from the bearing, and in that case, it has to be ordered separately. The life of a bearing not only depends on the quality of the bearing, but on several other factors as well, which are equally important, such as : A) MACHINING ACCURACY: For the bearing to achieve life, the contact between it's bore and the Sleeve as well as that between the bore of the Sleeve and the Shaft should be between 85% to 90% of the contact surfaces. Hence the correctness of the taper and cylindricity of the bore of the sleeve as well as the concentricity and finishing along with perfect roundness, play a great role in achieving the contact area parameter. B) MATERIAL : The Sleeves should be made from Carbon Steel as per established International Standard Imported FKL Sleeves are manufactured from originally processed raw material (C20/C30) and machined in CNC machines to achieve the required machining accuracy and the surface finish, so that contact area is fully maintained to provide projected service life to the Bearing. FKL Bearing Housing and Sleeve together is an ideal combination to meet and enhance service life criteria of Bearings.

These bearings stay cool while functioning as they consist two rows of balls which lower the friction on the common raceway in the outer ring that helps reduce the heat. These types are ball bearings when the alignment of the shaft and the housing are difficult and the shaft may flex. Residing in an outer ring the bearing has a spherical raceway and its centre 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. The smaller contact angle lowers the axial load capacity.

Sealed Spherical Roller Bearings are designed to withstand high demanding operating conditions as well as high operating life. For end users, use of these bearings is guaranteed to simplify its maintenance, reduce grease and seal consumption, and eliminates unplanned shut downs due to premature failures of bearings. This leads to drastic reduction of operating costs thereby shooting up profits with the operation. For an OEM customer, the use of Sealed Spherical Roller Bearing implicates elimination of external seals. Here, the consequent possibility of downsizing the machine and reducing the cost will increase the products competitiveness, especially if the guaranteed trouble free operation is taken into consideration. Sealed spherical roller bearings are suitable for areas of operation with hostile environment such as dust, dirt and other contaminant or pollutant. Sealing concepts – Depending on the bearing series the sealed spherical roller bearings are fitted with different sealing concepts.

These are fitted between machine parts in relative rotations; their name indicating that these are seals designed in form of ring that separate oil or grease present inside from the outer particles like dirt, water and dust. Mainly comprising of elastomeric diaphragm, shaped in the formation of a “lip” is reinforced with co-vulcanized metal insert. A “Greater Spring” energizes the sealing lip.

A needle roller bearing is a bearing which uses small cylindrical rollers. The difference between a needle roller bearing and roller bearing is the ratio of the diameter and length of rollers. Sometimes, it is also called the needle roller bearing when the diameter’s ratio and the length of roller of a roller bearing is between the intervals of 0.1 and 0.4. They also aid in reducing the friction of a rotating surface.

These nuts are used for the detection of location of bearings and other components onto a shaft or adapter sleeve. One of the other utility of these are escalating bearings on the tapered shaft seats and descending bearings from the withdrawal sleeves. Unintentional loosening of these locknuts are prevented by securing these nuts. The nuts are thus fitted with a locking device that engage a keyway in the shaft or a key slot in the adapter sleeve, or by a unique mechanism integrated in the nut that locks the nut. It is better used with an integrated locking system as it is cost effective, reducing the cost of the keyway in the shaft. This also facilitates quicker installation as no separate locking device is needed.

These washers are one of the simple but important elements that are reliable for fastening elements which engage a keyway in the shaft or key slot in the adapter sleeve. These washers are used to lock the nut in a fixed position when one of the washer tabs are bent into a slot on the nut.

Bearing is the heart of a machine and should be kept secured from undesirable forces. Bearing precision depends on the right choice of Housing & Sleeves and also safeguards the bearing installation and maintenance from high risk. As we apprehend this basic requirement, we have come up with a superior and classic range of Housing & Sleeves which will increase the bearing precision and life, manifold and cast out and unplanned machine down-time. Separate bearing housings are required for application where the bearings cannot be fitted directly inside the machine. Plummer blocks are the most commonly used types of bearing housings. These are predominantly designed for vertical loads directed towards the base.

Being one of the most versatile among the group of bearings these ball bearings consist of deep groove or single row radial. These are widely used ball bearings. Utilizing an uninterrupted raceway, the bearings have a close osculation with the balls; this enables the bearing to house radial loads and axial loads in both directions. These bearings have a low maintenance cost and a simple design. They cannot be separated and are suitable for high speed rotations, being very robust in operation.

This roller bearing completely complements cylindrical roller bearings and incorporates maximum number of rib guided cylindrical rollers. These can therefore lift up hefty radial loads; only drawback being their inability to operate at same high-speed as caged designs cylindrical roller bearings. The standard FKL range of single row also complements the semi-locating cylindrical roller bearings.

A roller bearing having a tapered bore is mounted on a straight shaft using either an Adapter Sleeve assembly, or a Withdrawal Sleeve. Mounting a bearing on a sleeve also permits maximum flexibility in the axial positioning of the bearing on the shaft and can accommodate light locational thrust loads. An Adapter or a Withdrawal Sleeve mounted bearing requires the correct reduction of Radial Internal Clearance of the bearing so as to prevent relative motion amongst the bearing inner ring, the sleeve and the shaft. Non-compliance with proper mounting procedures will invariably lead to hot running of the bearing and subsequently to it's premature failure.