d 12-70mm-Needle roller/ Angular contact ball bearing,Inner ring--NEY（DuangDong）Bearing Industry Co.,LTD

Index >> Machined needle roller bearing >> Needle roller/ Angular contact ball bearing,Inner ring

d 12-70mm

Product Parameter

Designation	X-life	Mass m ≈kg	Principal dimensions mm						Basic load ratings KN				Fatigue limit load N		Limiting Speed n_G min^–1	Reference Speed n_B min^–1
Designation	X-life	Mass m ≈kg	d	F	D	B	C	r min	Radial Dyc/C_r	Radial Stc/C_or	Axial Dyc/C_r	Axial Stc/C_or	C_ur	C_ua	Limiting Speed n_G min^–1	Reference Speed n_B min^–1
NKIA5912	XL	590	60	68	85	34	-	1	68000	108000	12400	32000	18800	1410	6800	5500
NKIB5912	XL	595	60	68	85	38	34	1	68000	108000	12400	32000	18800	1410	6800	5500
NKIA5913	XL	635	65	72	90	34	-	1	69000	112000	12800	34000	19500	1510	6300	5500
NKIB5913	XL	640	65	72	90	38	34	1	69000	112000	12800	34000	19500	1510	6300	5500
NKIA5914	XL	980	70	80	100	40	-	1	95000	156000	16800	44500	27500	1970	5800	4900
NKIB5914	XL	985	70	80	100	45	40	1	95000	156000	16800	44500	27500	1970	5800	4900

Introduction

& nbsp; features these series include radial needle roller bearings and roller bearing components that can bear axial force. they can bear high radial force and axial force in one direction, while nkib bearings can bear axial force in two directions, which can be used as positioning bearing or semi positioning bearing, as shown in Figure 1 .

O: P > O: P > figure 1 & nbsp; dynamic bearing capacity in radial and axial direction

X-life the combined needle roller bearing is X-life bearing. These bearings have optimized raceway surfaces. so it has higher bearing capacity and longer rated life. the existing design is as follows: ■ needle roller / thrust ball bearing ■ needle roller / thrust cylindrical needle roller bearing needle roller / angular contact ball bearing. needle roller / thrust ball bearing these series are very compact in radial direction without inner ring. However, they require that the raceway of the shaft be hardened and ground. bearings NX and NX.. - Z include thrust ball bearings and housings filled with balls. Nkx and Nkx.. - Z series include axial bearing parts, which are composed of ball and pressed steel plate cages or nylon cages. Nkx.. - Z including thrust bearing parts with cover. lubrication the outer ring has lubricating oil groove and lubricating oil hole for lubricating. NX and Nkx adopt oil lubrication. The cover NX has lubrication holes. NX.. - Z and Nkx.. - Z adopt grease lubrication. the thrust bearing parts adopt lithium-based composite grease ga08 . There are no lubrication holes in the cover. needle roller / thrust cylindrical roller bearing these series have no inner ring, so the radial dimension is very compact. However, they require that the raceway of the shaft be hardened and ground. series nkxr and nkxr.. - Z have axial bearing parts, which are composed of roller and nylon cage components. nkxr.. - Z including thrust bearing parts with cover. lubrication the outer ring has lubricating oil groove and lubricating oil hole for lubricating. nkxr oil lubrication. nkxr.. - Z suitable for grease lubrication. The thrust bearing parts are lubricated with lithium base compound grease ga08 . there is no lubrication hole in the cover. needle roller / angular contact ball bearing combined bearings nkia and nkib have inner rings.