d 38-60mm-With Inner ring Open--NEY（DuangDong）Bearing Industry Co.,LTD

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

d 38-60mm

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
NKI38/20	-	-	-	XL	136	38	43	53	20	0.3	0.5	30500	51000	8900	10700	6000
NKI38/30	-	-	-	XL	207	38	43	53	30	0.3	1	45500	85000	15800	10700	5900
NKI40/20-TV	-	-	-	XL	136	40	45	55	20	0.3	0.5	35000	62000	10800	10200	5600
NKI40/30-TV	-	-	-	XL	216	40	45	55	30	0.3	1	52000	103000	19100	10200	5400
-	NA4908	-	-	XL	230	40	48	62	22	0.6	1	48500	67000	11500	9600	5300
-	-	NA6908-ZW	-	XL	430	40	48	62	40	0.6	0.5	74000	116000	19400	9600	5400
-	-	-	NKIS40	XL	281	40	50	65	22	1	0.5	48000	67000	11500	9300	5200
NKI42/20	-	-	-	XL	148	42	47	57	20	0.3	0.5	32500	56000	9900	9800	5600
NKI42/30	-	-	-	XL	222	42	47	57	30	0.3	1	48500	94000	17500	9800	5400
NKI45/25-TV	-	-	-	XL	217	45	50	62	25	0.6	1.5	48500	87000	14800	9200	5300
NKI45/35-TV	-	-	-	XL	308	45	50	62	35	0.6	2	67000	132000	23900	9200	4950
-	NA4909	-	-	XL	271	45	52	68	22	0.6	1	51000	73000	12600	8700	4750

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