Drawn Cup Needle Bearings NAO Series 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).Full Complement Needle Bearings NAO Series 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, Full Complement Needle Bearings NAO Series have a high radial load capacity and are exceptionally apt for bearing applications where radial space is limited.

There 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. Drawn Cup Needle Bearings NAO Series have pressed steel cages, but some are without cages.

Drawn Cup  Needle Bearings NAO Series 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.

Designation	Basic Size
	Fw mm	D mm	C1 mm
NAO6X17X10-TV-IS1 Bearings	10 mm	17 mm	10 mm
NAO9X22X12-TV Bearings	12 mm	22 mm	12 mm
NAO12X24X13 Bearings	16 mm	24 mm	13 mm
NAO12X28X12-IS1 Bearings	16 mm	28 mm	12 mm
NAO15X28X13 Bearings	20 mm	28 mm	13 mm
NAO15X32X12-IS1 Bearings	20 mm	32 mm	12 mm
NAO17X30X13 Bearings	22 mm	30 mm	13 mm
NAO17X35X16 Bearings	22 mm	35 mm	16 mm
NAO20X35X17 Bearings	25 mm	35 mm	17 mm
NAO20X37X16 Bearings	25 mm	37 mm	16 mm
NAO25X40X17 Bearings	30 mm	40 mm	17 mm
NAO25X42X16-IS1 Bearings	30 mm	42 mm	16 mm
NAO30X45X17 Bearings	35 mm	45 mm	17 mm
NAO30X47X16 Bearings	35 mm	47 mm	16 mm
NAO30X47X18 Bearings	35 mm	47 mm	18 mm
NAO35X50X17 Bearings	40 mm	50 mm	17 mm
NAO35X55X20 Bearings	40 mm	55 mm	20 mm
NAO40X55X17 Bearings	45 mm	55 mm	17 mm
NAO50X68X20-IS1 Bearings	55 mm	68 mm	20 mm
NAO70X100X30 Bearings	80 mm	100 mm	30 mm
NAO80X110X30 Bearings	90 mm	110 mm	30 mm
NAO90X120X30 Bearings	100 mm	120 mm	30 mm