D 50-120mm-Non-flange, without Inner ring Open--NEY（DuangDong）Bearing Industry Co.,LTD

Index >> Machined needle roller bearing >> Non-flange, without Inner ring Open

D 50-120mm

Product Parameter

Designation	X-life	Mass m ≈kg	Principal dimensions mm					Fitting dimansion mm				Basic load ratings KN		Fatigue limit load C_ur/N	Limiting Speed n_G min^–1	Reference Speed n_B min^–1
Designation	X-life	Mass m ≈kg	F_w	D	C	E	r min	D_b	d_b	D_a	r_a max	Dyc C_r	Stc C_or	Fatigue limit load C_ur/N	Limiting Speed n_G min^–1	Reference Speed n_B min^–1
RNAO40X50X17	XL	74	40	50	17	45	0.3	40.6	44.4	45.5	0.3	24200	41500	6400	11500	7000
RNAO40X50X34-ZW-ASR1	XL	152	40	50	34	45	0.3	40.6	44.4	45.5	0.3	41500	83000	12900	11500	7000
RNAO40X55X20	XL	145	40	55	20	47	0.3	40.6	46.2	47.5	0.3	37000	57000	8900	11300	6600
RNAO40X55X40-ZW-ASR1	XL	275	40	55	40	48	0.3	40.6	47.2	47.5	0.3	70000	118000	18700	11100	6500
RNAO45X55X17	XL	83	45	55	17	50	0.3	45.6	49.2	50.5	0.3	25500	46000	7100	10300	6300
RNAO45X62X40-ZW-ASR1	XL	377	45	62	40	53	0.3	45.6	52.2	53.5	0.3	76000	135000	21500	10000	5900
RNAO50X62X20	XL	140	50	62	20	55	0.3	50.6	54.2	55.8	0.3	30000	60000	9600	9300	5800
RNAO50X65X20	XL	168	50	65	20	58	0.3	50.6	57.2	58.5	0.3	40500	62000	10800	9100	5600
RNAO50X65X40-ZW-ASR1	XL	355	50	65	40	58	0.6	50.6	57.2	58.5	0.6	69000	124000	21700	9100	5600
RNAO55X68X20	XL	166	55	68	20	60	0.6	55.8	59.4	60.8	0.6	32000	66000	10700	8500	5400
RNAO60X78X20	XL	255	60	78	20	68	1	60.8	67.2	68.8	1	49500	85000	13600	7700	4650
RNAO60X78X40-ZW-ASR1	XL	435	60	78	40	68	1	60.8	67.2	68.8	1	85000	171000	27500	7700	4650

Introduction

& nbsp; features single or double row needle roller bearing with flange consists of machined outer ring, needle roller and cage components with flange and separable inner ring. X-life needle roller bearing with flange is X-life bearing. these bearings have optimized raceway surfaces. Therefore, it has higher bearing capacity and longer rated life. needle roller bearing without inner ring needle roller bearings without inner ring have extremely compact radial dimensions. However, they require that the raceway of the shaft be hardened and ground. '> 40mm . needle roller bearing with inner ring if the shaft cannot be used as the raceway of rolling bearing, the bearing with inner ring shall be used. this kind of bearing has a single row design, but also a double row design na69 , its d & Ge; 32mm . inner circle displacement the standard inner ring is allowed to have displacement in the axial direction not exceeding the value listed in the dimension table. When large displacement occurs, the standard ferrule can be replaced by wide inner ring IR . inner circle: see page 776 . seal And. On both sides are contact seals. lubrication bearings are lubricated with composite lithium grease ga08 . arcanol load150 suitable for relubrication. For this purpose, the outer ring has a lubricating groove and a lubricating hole. 'EN-US ' > d & le; The 7mm series of NKI have no lubrication holes and grooves. sealing ring and wide inner ring in order to prevent the influence of the outside world, the combination of seal ring series ( G , GR and SD ) and wide inner ring IR can be used for bearing sealing. The sealing ring and inner ring should match the needle bearing. The outer surface of the inner ring can be used as the sliding surface of the sealing lip. sealing ring: see page 804 and tpi128 , single lip and double lip sealing rings. working temperature the operating temperature range of open bearing is & ndash; 20 ℃ to + 120 ℃. limited by grease and sealing materials, the operating temperature range of needle bearing with seal is & ndash; 20 ℃ to + 100 ℃. cage there are two kinds of cages: steel cage and nylon cage. The suffix of the bearing with nylon cage is TV . before using nylon cage bearing, check the compatibility of lubricant and cage material (PA66 GF / h) . suffix see the following table for suffixes of existing designs. suffix of existing design

suffix