D 19-85mm-Needle roller/ Thrust ball bearing , Without Inner ring, with or without cover --NEY（DuangDong）Bearing Industry Co.,LTD

Index >> Machined needle roller bearing >> Needle roller/ Thrust ball bearing , Without Inner ring, with or without cover

D 19-85mm

Product Parameter

Without cover Designation	X-life	Mass m ≈kg	Without cover Designation	X-life	Mass m ≈kg	Principal dimensions mm									Fitting dimansion mm		Basic load ratings KN				Fatigue limit load N		Limiting Speed n_G min^–1	Recommended Inner ring Designation
Without cover Designation	X-life	Mass m ≈kg	Without cover Designation	X-life	Mass m ≈kg	F_w	D	D₁ max	D₂ max	C -0.25	C₁ –0.2	C₂	d_w E8	r min	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
NKX10-TV	XL	34	NKX10-Z-TV	XL	36	10	19	24.1	25.2	23	9	6.5	10	0.3	19.7	0.3	7000	7800	10000	14000	1310	670	12400	IR7X10X16
NKX12	XL	38	NKX12-Z	XL	40	12	21	26.1	27.2	23	9	6.5	12	0.3	21.7	0.3	10100	11000	10300	15400	1920	740	10900	IR9X12X16
NKX15	XL	44	NKX15-Z	XL	47	15	24	28.1	29.2	23	9	6.5	15	0.3	23.7	0.3	12100	12700	10500	16800	2320	810	9200	IR12X15X16
NKX17	XL	53	NKX17-Z	XL	55	17	26	30.1	31.2	25	9	8	17	0.3	25.7	0.3	13500	15000	10800	18200	2750	870	8400	IR14X17X17
NKX20	XL	83	NKX20-Z	XL	90	20	30	35.1	36.2	30	10	10.5	20	0.3	30.7	0.3	18600	23800	14300	24700	4150	1190	7200	IR17X20X20
NKX25	XL	125	NKX25-Z	XL	132	25	37	42.1	43.2	30	11	9.5	25	0.6	37.7	0.6	21300	30500	19600	37500	5300	1790	5800	IR20X25X20
NKX30	XL	141	NKX30-Z	XL	148	30	42	47.1	48.2	30	11	9.5	30	0.6	42.7	0.6	25500	36000	20400	42000	6300	2030	5000	IR25X30X20
NKX35	XL	163	NKX35-Z	XL	168	35	47	52.1	53.2	30	12	9	35	0.6	47.7	0.6	27500	41500	21200	47000	7300	2270	4400	IR30X35X20
NKX40	XL	200	NKX40-Z	XL	208	40	52	60.1	61.2	32	13	10	40	0.6	55.7	0.6	29500	47000	27000	63000	8300	3000	3900	IR35X40X20
NKX45	XL	252	NKX45-Z	XL	265	45	58	65.2	66.5	32	14	9	45	0.6	60.5	0.6	31000	53000	28000	69000	9300	3350	3500	IR40X45X20
NKX50	XL	280	NKX50-Z	XL	300	50	62	70.2	71.5	35	14	10	50	0.6	65.5	0.6	43000	74000	29000	75000	12700	3650	3200	IR45X50X25
NKX60	XL	360	NKX60-Z	XL	380	60	72	85.2	86.5	40	17	12	60	1	80.5	1	47500	90000	41500	113000	15400	5400	2750	IR50X60X25

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.