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
NKIA5901	XL	40	12	16	24	16	-	0.3	8600	8300	2700	3450	1630	152	23600	21000
NKIB5901	XL	43	12	16	24	17.5	16	0.3	8600	8300	2700	3450	1630	152	23600	21000
NKIA5902	XL	50	15	20	28	18	-	0.3	12000	13600	2900	4200	2430	186	21600	17000
NKIB5902	XL	52	15	20	28	20	18	0.3	12000	13600	2900	4200	2430	186	21600	17000
NKIA5903	XL	56	17	22	30	18	-	0.3	12400	14600	3150	4900	2600	216	20600	15000
NKIB5903	XL	58	17	22	30	20	18	0.3	12400	14600	3150	4900	2600	216	20600	15000
NKIA5904	XL	103	20	25	37	23	-	0.3	23700	25500	4900	7400	4600	330	17200	14000
NKIB5904	XL	107	20	25	37	25	23	0.3	23700	25500	4900	7400	4600	330	17200	14000
NKIA59/22	XL	118	22	28	39	23	-	0.3	26000	29500	5300	8600	5300	380	16100	12000
NKIB59/22	XL	122	22	28	39	25	23	0.3	26000	29500	5300	8600	5300	380	16100	12000
NKIA5905	XL	130	25	30	42	23	-	0.3	26500	31500	5400	9300	5700	410	14600	12000
NKIB5905	XL	134	25	30	42	25	23	0.3	26500	31500	5400	9300	5700	410	14600	12000

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.