d 20-35mm-With Inner ring Open--NEY（DuangDong）Bearing Industry Co.,LTD

Index >> Machined needle roller bearing >> With Inner ring Open

d 20-35mm

Product Parameter

Designation1	Designation2	Designation3	Designation4	X-life	Mass/m ≈kg	Principal dimensions mm						Basic load ratings KN		Fatigue limit load C_ur/N	Limiting Speed n_G min^–1	Reference Speed n_B min^–1
Designation1	Designation2	Designation3	Designation4	X-life	Mass/m ≈kg	d	F	D	B	r min	s²⁾	Dyc C_r	Stc C_or	Fatigue limit load C_ur/N	Limiting Speed n_G min^–1	Reference Speed n_B min^–1
NKI20/16	-	-	-	XL	49	20	24	32	16	0.3	0.5	16900	22300	4100	18500	10100
NKI20/20	-	-	-	XL	61	20	24	32	20	0.3	0.5	21400	30500	5300	18500	9900
-	NA4904	-	-	XL	75.2	20	25	37	17	0.3	0.8	23700	25500	4600	17200	9600
-	-	NA6904	-	XL	141	20	25	37	30	0.3	1	40500	51000	9100	17200	9200
-	-	-	NKIS20	XL	129	20	28	42	20	0.6	0.5	32500	36500	6400	15800	8300
NKI22/16	-	-	-	XL	52	22	26	34	16	0.3	0.5	17300	23600	4350	17200	9500
NKI22/20	-	-	-	XL	65.4	22	26	34	20	0.3	0.5	22000	32000	5600	17200	9300
-	NA49/22	-	-	XL	80	22	28	39	17	0.3	0.8	26000	29500	5300	16100	8700
-	-	NA69/22	-	XL	150	22	28	39	30	0.3	0.5	42000	55000	9900	16100	8500
NKI25/20-TV	-	-	-	XL	75.8	25	29	38	20	0.3	1	27500	39000	6900	15300	8100
NKI25/30	-	-	-	XL	124	25	29	38	30	0.3	1.5	37000	57000	10600	15300	8200
-	NA4905	-	-	XL	88	25	30	42	17	0.3	0.8	26500	31500	5700	14600	7900

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