Large Stock Needle Roller Bearing Na4903

Model NO.: NA4903 The Number of Rows: Single Material: Bearing Steel Load Direction: Radial Bearing Application: Industry Machines Clearance: C0, C1, C2, C3... Specification: ISO HS Code: 8483200000 Rolling Body: Needle Outer Dimension: Medium and Large(120-190mm) Spherical: Non-Aligning Bearings Separated: Unseparated Precision: P0, P6, P5, P4 Trademark: YOB Origin: China LARGE STOCK needle Roller Bearing NA4903
Welcome to look through YOB  Spherical roller thrust bearing . With our long history factory experiences, we are providing professional service. Any problem, please do not hesitate to contact fanny. Thanks for your time in advance!

Advantage of YOB Bearing Company

  1> manufacturer & exporter
  2> competitive price
  3>high quality material
  4> advanced machine
  5> Strictly QC system
  6> experienced engineers and workers, good service
  7> low noise and long usage life
  8> professional management and team

Features 

1. Long-life operation
2. Suitable for the radial and axial loaded
3. With low and smoothly coefficient of friction and without stick-slip effects
4. Suitable for dirty, corrosion, impact load and edge loading 
5. The base material provided a good shock-absorbing capacity 
6. Can be used over a large temperature range. 
7. Suitable for reciprocating, rotating and oscillating movement with start frequency and difficulty to form oil film occasions 
 NA4903 Needle Roller bearing Specifications 1.High quality and good service 
2.Less friction and low noise 
3.Competitve price 
4.Ability to carry heavy 5.Long-life 6.Low-noise 7.High-load 8. Strict-quality control system, the customeres should be more trust 9.High effective produce ability, short delivey time. NA4903 Type and Series of needle roller bearing : Radial Needle Roller and Cage Assemblies (5mm ~ 480mm) - K, KK, KS, KKS series Entity Bushed Needle Roller Bearings (5mm ~ 500mm) - NK, NKI, NA, RNA series Drawn Cup Needle Roller Bearings (8mm ~ 45mm) - HK, BK series Plane Thrust Needle Roller Bearings (4mm ~ 200mm) - AXK., AS, LS series Linear (Motion) Needle Roller Bearings (15mm ~ 50mm) - LNS series NA4903 Needle Roller Bearing Feature Needle bearings feature a smaller cross-section, higher load-carrying capacity, greater rigidity, and lower inertia forces that facilitate size and weight reductions in machinery. They're designed to withstand oscillation, perform under severe conditions, and interchange with sliding bearings. Diverse types of needle bearings are available in a wide variety of sizes and tolerances, for a multitude of applications. NA4903 Needle Roller Bearing Application 1. Wheel and pin bearing is widly applied in packaging machinery, food machinery, 
2. Printing machinery, woodworking machinery, textile machinery, light machinery, mining 
3. Machinery, engraving machines, automation equipment, CNC equipment, etc     

 

Bearing Designation	Original Code	Mass Approx	Boudary Dimensions(mm)			Basic Load Rating		Limiting Speed
		g	Fw	D	C	Dynamic	Static	Oil
NK 42/20	-	83	42	52	20	23900	45000	10000
NK 42/30	-	125	42	52	30	27000	49000	10000
RNA4907	4624907	99.3	42	55	20	19800	41500	8710
RNA 6907	6634907	160	42	55	36	26000	60500	8710
NK 43/20	-	84	43	53	20	25700	49000	10000
NK 43/30	-	126	43	53	30	39000	75000	10000
NK 45/20	644808	81.5	45	55	20	19800	46500	7650
NK 45/30	-	75.3	45	55	30	20500	49600	7650
NKS 45	-	80	45	60	22	21600	50500	7650
RNA 4908	4644908	132	48	62	22	31036	63873	8120
RNA 6908	6634908	238	48	62	40	64000	112000	8120
NK 50/25	-	167	50	62	25	28000	67000	8140
NK 50/35	-	236	50	62	35	32000	70100	8140
NKS50	-	328	50	65	22	40000	62000	8140
RNA 4909	4624909	163	52	68	22	37000	69500	7625
RNA 6909	6634909	308	52	68	40	61500	123500	7625
NK 55/25	-	167	55	68	25	30600	60800	7625
NK 55/35	-	210	55	68	35	36000	68000	7625
NKS 55	-	225	55	72	22	45000	7000	7500
RNA 4910	4644910	161	58	72	22	41000	72000	7500
RNA 6910	6634910	296	58	72	40	68000	135000	7500
NK 60/25	-	154	60	72	25	39000	86000	7000
NK 60/35	-	195	60	72	35	38000	85000	7000
NKS 60	-	210	60	80	28	45000	96000	7000
RNA 4911	4644911	241	63	80	25	50600	96580	6340
RNA 6911	6634911	430	63	80	45	82560	172000	6340
NK 65/25	-	195	65	78	25	49000	65000	6200
NK 65/35	-	210	65	78	35	59000	72000	6010
NKS 65	-	298	65	85	28	68000	98000	6200
RNA 4912	4644912	257	68	85	25	52800	91050	6100
RNA 6912	6634912	436	68	85	45	88500	186000	6100
NK 70/25	-	320	70	85	25	62000	78000	6000
NK 70/35	-	398	70	85	35	65000	92000	6000
NKS 70	-	421	70	90	28	85000	113000	6000
RNA 4913	4644913	300	72	90	25	57500	110500	6100
RNA 6913	6634913	571	72	90	45	87600	194500	6100

LARGE STOCK needle roller bearing NA4903    



FAQ Q: Are you a manufacturer ? A: Yes.   Q: Can you produce OEM products or make our brand name on the products? A: Yes.   Q: Where is your Enterprise located? A: We are in WuXi city Jiangsu province which is only two hours' drive way from Shanghai. 
  Q: Where is mainly market? A: Our goal is to let worldwide customers to love and use our bearings. At present, our mainly customers locates in America, Germany, Franch, Italy, Spain, Iran, India, Pakistan etc.
Pls contact me to find cheaper chinese bearings!

Contact With Us Freely

Betty

Jiangsu Asia-Europe Bearing International Co.,Ltd

Mob: +86-136-2153-6051  
 

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Product Categories : Needle Bearing