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
NKIA5906	XL	147	30	35	47	23	-	0.3	28500	35500	5900	11200	6400	495	12700	10000
NKIB5906	XL	151	30	35	47	25	23	0.3	28500	35500	5900	11200	6400	495	12700	10000
NKIA5907	XL	243	35	42	55	27	-	0.6	35500	50000	7400	14900	9400	660	10900	9000
NKIB5907	XL	247	35	42	55	30	27	0.6	35500	50000	7400	14900	9400	660	10900	9000
NKIA5908	XL	315	40	48	62	30	-	0.6	48500	67000	9200	19400	11500	860	9600	7500
NKIB5908	XL	320	40	48	62	34	30	0.6	48500	67000	9200	19400	11500	860	9600	7500
NKIA5909	XL	375	45	52	68	30	-	0.6	51000	73000	9600	21400	12600	950	8700	7000
NKIB5909	XL	380	45	52	68	34	30	0.6	51000	73000	9600	21400	12600	950	8700	7000
NKIA5910	XL	380	50	58	72	30	-	0.6	53000	80000	10100	24300	13800	1080	8000	6500
NKIB5910	XL	385	50	58	72	34	30	0.6	53000	80000	10100	24300	13800	1080	8000	6500
NKIA5911	XL	550	55	63	80	34	-	1	65000	100000	12100	29500	17300	1300	7300	6000
NKIB5911	XL	555	55	63	80	38	34	1	65000	100000	12100	29500	17300	1300	7300	6000

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.