ZKL India Kolkata, West Bengal

ZKL ZMFT – 33 plus The ZKL ZMFT – 33 is a perfect solution provider . It’s the ultimate in easy and dent – free mounting of bearings up to 50mm bore on shafts as well as housing , uniformly , without alignment problems. Impact ring face ensures even and simultaneous contact with inner and outer ring of bearings , preventing any mounting force from being transmitted through rolling elements and protecting bearing race ways from any damage. Extended Usage The ZKL ZMFT – 33 Tool Kit can also be used to mount bushings , seal rings , belt pulleys and sleeves for assembly purposes.

Production and efficiency often depends on the ability to measure the rotating speed in industrial equipments. The ZKL Digital Optical Tachometer accurately measures peed over a range of 5 to virtually infinite RPM and is therefore an invaluable instrument on the shop – floor of any industrial establishment. The tachometer comes in a handy carrying – case for easy application and carriage from one machine point to another. Enhanced Application Benefits Hard – to –reach – and – measure areas of operation , especially in hazardous zones or inaccessible heights Measuring molten metal temperatures (in steel industry for example) Measuring Kiln temperatures Measuring bearing temperature of all rotating machinery across industries Measuring temperatures in air – conditioning , chemical and in - process industries

Single-row deep groove ball bearings are of non-separable construction. They are manufactured in multiple series and executions e.g., open, with single shield or Seal and double shield or Seal. These bearings are capable of silent running with low friction and are suitable even for high rpm. The rpm of Sealed bearings is limited in comparison with the open type. The single-row deep groove ball bearings can transmit radial and axial forces in both directions at relatively high rpm thanks to relatively deep grooves and high degree of alignment between the rolling elements and the raceways. Only low misalignment of bearing rings is allowed for single-row deep groove ball bearings. The bearings are supplied with standard radial clearance and running accuracy . However, bearings with lower or higher radial clearance as well as higher running accuracy can also be supplied.

Double-row self-aligning ball bearings are non-separable. They are made in multiple series and with open construction. They are capable of running with low friction and at higher rpm. The double-row self-aligning ball bearings are manufactured with cylindrical or tapered bore, the taper ratio being 1:12. The bearings with tapered bore are required to be fitted either onto a shaft with tapered seating on the shaft, or by means of an adapter sleeve onto a cylindrical shaft. These bearings can transmit radial and limited axial forces. The double-row self-aligning ball bearings have two rows of balls with a common spherical track on the outer ring. This allows misalignment of the bearing inner ring with respect to the outer ring around the centre of the bearing, without affecting its correct function. These bearings are capable of compensating lack of co-axiality between the shaft and the housing, shaft deflection and even machining defect in the support structure that may give rise to the misalignment after assembly. The bearings are supplied with standard clearance and with normal accuracy class. Bearings with lower or higher radial clearance as well as higher accuracy can also be supplied.  

Thrust ball bearings are designed for carrying Axial loads and are of separable construction, the shaft washer (ring), the housing washer(ring) and the cage-ball assembly are to be put together for use on the shaft. They are manufactured in multiple series, and as single-directional or bi-directional. The single-row thrust ball bearings consist of a shaft washer (ring) with an raceway, a cage with balls and a housing washer (ring) with a raceway. These bearings can transmit axial load in one direction only, and must not be exposed to radial load. The bearings are manufactured in normal accuracy. However, bearings with higher running accuracy can also be supplied. Bi-directional thrust ball bearings have two cages with balls placed between the shaft washer (ring) and two housing washers (ring). The central shaft washer (ring) has raceways for roller elements on both sides, and is mounted onto a shaft. The housing washers (ring) have the raceway on one side only. These bearings can transmit axial load in both directions. The bearings must not be exposed to radial load. The bearings are manufactured in normal accuracy. However, bearings with higher running accuracy can also be supplied.

Single-row cylindrical roller bearings are of separable construction. The ring with flanges is assembled with the cage and the rollers. During mounting, the rings are to be fixed on to their respective seats – Inner ring on the shaft and outer ring on to the housing and then they have to be put together carefully. Depending on the ring-roller-cage configuration either on the inner ring or the outer ring, the bearing series are designated as NU and N. Series NJ and NUP are variants of the NU design – denoting whether the separable inner ring has one flange (NJ) or one flange and truncated inner ring with a separable guide flange fixed on the other side of the flange so as to keep the width of the inner ring assembly same as that of the outer ring (NUP). They are manufactured in multiple series. The bearings feature high rigidity, low friction, an ability to transmit high radial loads and are suitable for high rpm. N or NU series bearings should not be exposed to axial loads. Nj series bearings can carry limited axial load in only one direction, whereas NUP series series of bearings can carry limited axial loads in both the directions. The bearings are supplied with standard clearance and normal accuracy. However, bearings with lower or higher radial clearances as well as higher running accuracy can also be supplied. The bearings in the N design – the inner ring has two pilot flanges, the outer ring is without the pilot flanges. Axial displacement of the shaft towards the element (body) is possible in both directions.