We manufacture drawn cup, full-compliment needle bearings in NA / NK/ NKI and NKIS types. They have a deep-drawn cup with a full compliment of needles. In a few needle bearings, the needles are retained by the cup lips and in the others they are retained by grease. In the grease -retained needle bearings , we generally use spherical -ended rollers. Drawn cup needles have higher speeds and reduced load bearing capacity. They are a good tolerant to for misalignment. These heavy- duty needle bearings have a heavy outer ring which increases load capacity. The rollers are cylindrical rather than being tapered and hence problem of slippage is faced between the roller and raceway surfaces.

We manufacture needle roller thrust bearings for heavy axial loads. They are advantageous as they require minimum axial space and a stiff arrangement. These thrust bearings can accommodate one direction axial loads. A unique feature of these thrust bearings is that the roller cage and raceways can all be separated and combines with washers of various designs. Needle roller and cage thrust assemblies consists of a cage that guides and retains large number of needle rollers. The rollers have cylindrical surfaces which are relieved towards the end, so that there is an even distribution of load and the edges are prevented from damage.

Bearing Washers
The raceway washers are manufactured from hardened carbon chromium (rolling bearing) steel. They are ground ; the bore and the outside diameter are turned. They can be used both as a shaft and housing washers for bearing arrangements.

Thrust washers are manufactured from spring steel. They are hardened and polished. The thrust washers enable bearing arrangements where the adjacent machine components cannot be used as raceways, but they do have adequate stiffness. Shaft and housing washers are required for accurate centering of the bearing washers and high speed applications.

Dimensions - The dimensions of the needle roller & cage thrust assemblies correspond to ISO

Misalignment - They are intolerant to any misalignment of shaft with respect to housing or any angular misalignment

Minimum Load - The requisite minimum axial load to be applied to needle roller thrust bearings can be obtained from
Fam = 0,0005 C0
Fam = minimum axial load, kN C0 = basic static load rating, kN

Needle roller and cage thrust assemblies include a form-stable steel cage or sheet steel as a standard. The assemblies that are identified by designation TN and have injection molded cage of glass fiber reinforced polymide 6,6 are an exception.

Physical Characteristics

Its cylindrical rollers, which are thin & long in relation to their diameter. They are referred to as needle rollers Needle Rollers used for needle roller bearings & are rigid & highly accurate In spite of their low cross section bearings have a high load carrying capacity Available with or without an inner ring The needle rollers are maximum of 5mm in diameter & are 3-10 times as long as they are in diameter

Applications
These roller bearings have precision needle rolling elements which are used in varied industries in multiple forms. They are used in automotive,truck, farm and construction equipment, two cycle engines, outboard engines and consumer durables. These rollers are mainly used as bearing rolling elements to transmit torque and reduce friction. They can also be used as precision shafts or precision locating pins.