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- D.I. d(Ø)
- 68
- D.E. D(Ø)
- 85
- Largeur B(mm)
- 25
- Précision (JIS)
- Nombre de rangées de bagues de course circulaire
- Normes de taille
- Structure du joint
- Nombre de tours(tr/min)
- 4000
- Série
- Type
- CAO
- 2D
- 3D
- Jours d'expédition estimés
- Tout
- Possibilité d’expédition le jour même
Paliers à aiguilles de type solide (RNA4912R)
Plus d'informations
Informations de base
For this bearing, needle rollers and a retainer have been incorporated into a solid outer ring such that the outer ring and needle are not separated. Features high rigidity and bearing accuracy can be increased; ideal for applications where high speed, high load and high rotational accuracy are required.
[Features]
· Solid needle roller bearing dimensional accuracy, conformational accuracy and rotation accuracy are specified in JIS B 1514 (rolling bearing precision).
· Products of precision grade JIS0, are manufactured by default but JIS6, JIS5, and JIS4 class products can also be provided for applications that require higher rotational precision; please inquire with NTN.
· The dimensional tolerance of the roller's inscribed circle diameter for the inner ring-less RNA, NKS and MR models corresponds to ISO class F6.
· Refer to the corresponding documentation when choosing axle diameter dimensions and radial clearance.
· Especially high