IKO Machined Type Needle Roller Bearings (RNAF & RNAFW) consist of outer ring, inner ring and separable cage, without inner ring. Single row (RNAF) and double row (RNAFW) are available with the same sectional heights. These bearings are suitable for mass-production high accuracy products such as machine tools, textile machineries, printing machines, etc. Since these are not provided with prepacked lubricant, proper lubrication must apply when they are used. Machined Type needle roller bearings are generally used with shafts without inner rings. 0.2µmRa or less shaft surface finish and HRC ...

IKO Inner Ring for Shell Type Needle Roller Bearing METRIC, 25mm Bore, 30mm OD, 26.5mm Width, Part# IRT2526-1 IKO Inner Rings are heat-treated and finished by grinding to obtain rigidity and accuracy. Use IKO Inner Rings when shafts cannot be hardened to HRC 58 to 64 and cannot obtain 0.2μmRa or less surface finish.

JNS NA series consists of Outer ring, Inner Ring, Retainer and Rollers. These series are made from Chrome Steel. JNS needle roller bearings have low sectional height with large load ratings to accommodate small mounting space for high speed and heavy duty applications.

IKO Machined Type Needle Roller Bearing consists of solid outer ring, rollers and retainer, without inner ring. They are with low sectional height, large load ratings and righty, and most of them come with and without seals. Prepacked lubricant is not provided except double sealed bearings (suffix UU). Proper lubricant must be applied when they are used. Machined Type needle roller bearings are generally used with shafts without inner rings. 0.2µmRa or less shaft surface finish and HRC 58 to 64 shaft hardness are recommended. When these requirements are not possible, use of IKO Inner ...

IKO Machined Type Needle Roller Bearing consists of solid outer ring, rollers and retainer, without inner ring. They are with low sectional height, large load ratings and rigidity, and come with no seals. Proper lubricant must be applied when they are used, as prepacked grease is not provided for these series. GTR series are full compliment bearings with mallet-shaped rollers that are guided by guide rail and groove to minimize skewing. These bearings are suitable for applications with heavy loads, shock loads or oscillating motions. Machined Type needle roller bearings are generally used ...