D 14-47mm-Needle roler /Thrust ball bearing , without Inner ring--NEY（DuangDong）Bearing Industry Co.,LTD

Index >> Machined needle roller bearing >> Needle roler /Thrust ball bearing , without Inner ring

D 14-47mm

Product Parameter

Designation			Principal dimensions mm							Fitting dimansion mm				Basic load ratings KN				Fatigue limit load N		Limiting Speed n_G min^–1	Recommended Inner ring Designation	Suitable snap ring
For oil lubrication	For grease lubrication	X-life	Mass m ≈kg	F_w	D	C -0.25	C₁	d_w E8	r min	C₂	D₁	d_a	r_a max	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	Recommended Inner ring Designation	Suitable snap ring
NX7-TV	NX7-Z-TV	XL	14	7	14	18	4.7	7	0.3	10	16.5	9.6	0.3	3250	2650	3150	4300	410	190	15000	-	WR14、SW14
NX10	NX10-Z	XL	25	10	19	18	4.7	10	0.3	10	21.9	14.6	0.3	5000	3700	4600	7200	720	320	11000	IR6X10X10-IS1	WR19、SW19
NX12	NX12-Z	XL	28	12	21	18	4.7	12	0.3	10	23.7	16.6	0.3	5400	4300	4850	8200	830	365	9500	IR8X12X10-IS1	WR21、SW21
NX15	NX15-Z	XL	48	15	24	28	8	15	0.3	12.2	26.5	19	0.3	12100	12700	5600	10400	2320	460	8000	IR12X15X16	WR24、SW24
NX17	NX17-Z	XL	53	17	26	28	8	17	0.3	12.2	28.5	21	0.3	13500	15000	5800	11500	2750	510	7500	IR14X17X17	WR26、SW26
NX20	NX20-Z	XL	68	20	30	28	8	20	0.3	12.2	33.6	25	0.3	14600	17500	7000	14700	3200	650	6500	IR17X20X16	WR30、SW30
NX25	NX25-Z	XL	115	25	37	30	8	25	0.3	14.2	40.4	31.6	0.3	16800	22400	11100	24300	4150	1080	4900	IR20X25X16-IS1	WR37、SW37
NX30	NX30-Z	XL	130	30	42	30	10	30	0.3	14.2	45.1	36.5	0.3	25500	36000	11700	28000	6300	1230	4300	IR25X30X20	WR42、SW42
NX35	NX35-Z	XL	160	35	47	30	10	35	0.3	14.2	50.1	40.5	0.3	27500	41500	12400	32500	7300	1440	3700	IR30X35X20	WR47、SW47

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

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. 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. 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. 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. 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.