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FAQS

QWhat's the needle bearing ?

ANeedle roller bearings are essentially cylindrical roller bearings except that their cylindrical rollers have a length 3 to 10 times their diameter (versus a length less than 3 times their diameter). Needle bearings are also essentially bearings that utilize small & cylindric rollers. Therefore, the ratio of the bearing outside diameter to the inscribed circle diameter is small, and they have a rather high radial load capacity. Even though they have a low cross section, needle roller bearings have a high radial load capacity and are exceptionally apt for bearing applications where radial space is limited.

QWhat's the types of needle bearings ?

AThere are numerous types available, and many have no inner rings. The drawn-cup type has a pressed steel outer ring and the precision (solid) type has a machined outer ring. There are also cage-and-roller assemblies without rings. Most bearings have pressed steel cages, but some are without cages. Drawn cup needle roller bearings have a drawn outer shell serving as a raceway for the rollers and are installed with a press fit in the housing. They are ideal for many of the following applications: transmissions, transfer cases, engines, valve trains, steering and braking systems, axle supports, outboard engines, textile industry, power tools, copiers, fax machines, paper-moving equipment, and appliances.

QHow To Select and Order Needle Roller Bearings ?

AWe have over 325 needle roller bearing products in its interactive online catalog. If you need help in selecting the best products for your particular application, please remember that design engineering and application assistance are available from AST as part of our value-added services designed to make your job easier.

QWhat's the feature of needle bearing ?

ABearing features Lowest cross section among rolling bearings In applications where less space is available, needle roller and cage assemblies offer a very compact solution. High load carrying capacity Owing to their large number of rollers, needle roller and cage assemblies have a high load carrying capacity. High stiffness Because of their large number of small-diameter rollers, needle roller and cage assemblies have high stiffness.

QWhy do I use Timken bearings?

AThe purpose of his invention was to improve the performance of wagon wheels used in farming. In 1898, Henry Timken was awarded a patent for the tapered roller bearing. At the time, Timken was a carriage-maker in St. Louis and held three patents for carriage springs.

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