Needle Roller Bearings

We are one of the leading manufactures of highly durable needle roller bearings that have applications in varied industries. These bearings possess small cross section of needle roller and cage assemblies that predominantly offers compact and light construction. The long length of the needle rollers in respect of their diameters ensures rigid bearing mounting of high load carrying capacity. The controlled contour of the needle roller ends assists in eliminating the edge stressing. These bearings include dimensional accuracy, high speed rotation, high tensile strength, easy to use and install and low noise.

We are a leading manufacturer and supplier of needle roller bearings. These bearings are manufactured using superior quality raw material that ensures durability and performance of the product. They are light weight and have a compact construction. They are available in varied sizes and can be availed as per the specific requirement of the buyer.

Advantages:

Smaller cross-section leading to greater rigidity, higher load-carrying capacity & lower inertia of the needle roller bearings help size and weight reductions in machinery Though they are less wide, their load carrying capacity is high and is most suitable for applications where the load is high & the radial space is less Needle roller bearings, which are designed to withstand oscillation can operate under severe conditions & interchange with sliding bearings

Applications

Transmissions, transfer cases, engines & valve trains Steering and braking systems Axle support Outboard engines

Expanded Options

Assemblies with bearings. Engineered polymer cages Bearings with one or two seals Closed end bearings Oil holes Drawn sleeve

Types of Needle Roller Bearings

Drawn cup needle roller bearings:These needle roller bearings have a deep thin walled outer ring with open or closed ends. These bearings have a very low sectional height and have high load carrying capacity. They are used when a very compact arrangement is required and the housing bore cannot be used as a raceway. These drawn cup needle roller bearings are directly used on the shaft. Drawn cup needle roller bearings with closed ends:These drawn cup are manufactured of hardened steel sheet, needle roller and cage assembly form a non-separable unit. There drawn cup needles have a large lubricant space. Generally, they have only a single row of rollers but some may have two-needle roller and cage assemblies adjacent to each other with the lubricating hole in the outer ring. With and without inner rings:These are rubbing of polyurethane or nitride rubber(NBR).Superior quality of lithium base grease is used in them. They are a substitute for seals. The raceways of the shaft must have the hardness and the surface should have a normal finish in order to maximize the load carrying capacity.

Needle Roller Bearings Specifications & Standards

Dimensions - The boundary dimensions of the drawn cup needle roller bearings are in accordance with ISO Bore Size - Its size is measured in millimeters. The bore is a hollow cylindrical chamber or barrel shaped where the metal balls are placed. Outer Ring Width - It is the width of the outer ring measured in millimeters. Revolutions - Revolutions indicate the rotation speed of the bearing. Bearing Weight – It indicates the weight of the bearing, measured in pound. Tolerance - They are usually meant for normal tolerance but can be enhanced. Internal Clearance- A suitable internal clearance is achieved by selecting appropriate tolerance. Misalignment - The line contact between the raceways and the rollers prevent damaging edge stresses from occurring & also allows bearings to accommodate very minor angular misalignments of the shaft relative to the housing. Cages - There are standard cages but some may

We offer needle bearing rollers that have high length to diameter ratio. These bearings have the highest load bearing capacity for a given radial space of all rolling bearings. These needle bearings have no retainers. Loose needle bearings are full complement of needles in the annular space between two hardened machine components, which form the bearing raceways. Oil based lubricants are used to adds to the durability and smoothness. They bearings provide a bearing assembly with moderate capability and are sensitive to misalignment. They are commonly used in farm construction equipment, gasoline engines, gear pumps and small appliances.

We also offer caged assemblies, which are roller arrangement with a retainer. The retainer is placed between two hardened elements that act as raceways. The speed capabilities of caged assemblies is better than that of loose -needle bearings, but due to the smaller compliment of needles, the load capacity of these caged assemblies reduces.