High-Load Needle Bearing Nav with Machined Rings for Conveyor Tension Rollers

• Customization: Available
• Cage: With Cage
• Rows Number: Single
• Model NO.: NA/NAV Series
• Load Direction: Radial Bearing
• Style: With Outer Ring, With Inner Ring
• Material: Bearing Steel
• Type: Open
• Product Name: Machined Needle Roller Bearing with Inner Ring
• Keywords: Machined Needle Roller Bearing
• Shaft Diameter: According to Model
• Bearing Number: According to Model
• Boundary Dimension: According to Model
• Advantage: Easy Installation
• Packing: Carton
• Usage: Widely
• Main Market: Europe, North America, South America, Asia
• Transport Package: Standard Packaging or Customized
• Specification: Standard Specifications or Customized
• Trademark: DW
• Origin: Suzhou, China
• HS Code: 8482400090
• Production Capacity: 100 Million Pieces/Year

Product Description

Product Description

MACHINED NEEDLE ROLLER BEARING WITH INNER RING

Machined needle roller bearings are particularly suitable for applications where radial installation space is limited due to their small radial cross-sectional size, good bearing rigidity, and high radial load carrying capacity. Needle roller bearings can only withstand pure radial loads and cannot limit the axial displacement between the shaft and the housing. During bearing installation, the outer ring axis and the inner ring axis must not be tilted.

Machined needle roller bearings have different structures with and without a cage for full complement needle rollers, and can also be specially designed and manufactured according to user requirements. Needle roller bearings with oil holes and grooves on the outer ring are beneficial for bearing lubrication. 

PRECISION MACHINED CONSTRUCTION 

SUPERIOR MATERIAL QUALITY 

ENHANCED SURFACE HARDNESS 

Manufactured using advanced CNC machining technology to achieve exceptional dimensional accuracy and surface finish, ensuring optimal performance and extended service life.

Constructed from premium-grade bearing steel with optimal carbon content and uniform grain structure for maximum durability and performance.

Heat-treated to achieve optimal surface hardness, providing excellent wear resistance and fatigue life.

Product Parameters

Shaft Diameter(mm)	Bearing Number	Boundary Dimensions(mm)			Basic Load Rating(N)		Limiting Speed(Rpm)
		d	D	B	Cr Dynamic	Cor Static	Grease	Oil
9	NK19/12	9	19	12	6800	6300	17200	24800
10	NA4900A	10	22	13	5900	7400	14400	21600
	NAVP5900M/P6S1	10	26	17	7800	8400	14400	21600
12	NA4901A	12	24	13	5800	6200	13500	20700
15	NA4902A	15	28	13	6100	8600	12000	18000
	NA153312	15	33	12	12200	14100	13500	20700
17	NA4903A	17	30	13	6200	9100	10000	16000
	NA173017	17	30	17	12000	18900	10000	16000
20	NK120/16	20	32	16	14300	20800	12000	18000
	NK120/20	20	32	20	17200	26500	12000	18000
	NA203316	20	33	16	14500	21200	12000	18000
	NA0203517	20	35	17	15100	25400	9600	14400
	NA4904	20	37	17	20600	27700	9600	14400
22	NK122/16	22	34	16	13300	21900	9300	14000
	NA49/22	22	39	17	24000	30300	9100	13600
	NA49/22/P6	22	39	17	21000	29300	9100	13600
25	NK125/20	25	38	20	23100	36300	9300	14400
	NA4905A	25	42	17	23600	31500	9300	14000
28	NK128/20	28	42	20	24700	39700	8000	14000
	NA49/28/P6	28	45	17	20700	29700	8000	11900
30	NA0304517	30	45	17	18000	35700	7300	10800
	NK130/20/P6	30	45	20	23200	43700	7300	10800
	NA4906	30	47	17	25000	35500	7300	13000
	NA4906/P6	30	47	17	23700	36600	7300	10800

Shaft Diameter(mm)	Bearing Number	Boundary Dimensions(mm)			Basic Load Rating(N)		Limiting Speed(Rpm)
		d	D	B	Cr Dynamic	Cor Static	Grease	Oil
35	NA4907	35	55	20	21600	37200	7300	11000
	NKIS35	35	58	22	35600	53700	5500	10000
40	NK140/20	40	55	20	29100	56200	5700	8400
	NK140/30	40	55	30	35200	80700	5700	8400
	NA4908	40	62	22	41100	66600	5400	8000
45	NK145/35	45	62	35	52000	108800	5000	7600
	NA4909A	45	68	22	32600	55200	4900	7300
50	NA4910	50	72	22	41400	71600	4400	6600
55	NK155/35	55	72	35	65900	143500	4300	6400
	NA4911A	55	80	25	38700	74400	4100	6000
60	NA4912A	60	85	25	41600	82200	3800	50600
65	NA4913	65	90	25	42700	87500	3500	5300
	NA4913A/P62	65	90	25	42700	87500	3500	5300
70	NK170/35	70	95	35	78000	184000	3600	6000
	NA4914A	70	100	30	53300	121000	3200	4800
85	NK185/36	85	115	36	105050	216800	2700	4000
100	NA4920A	100	140	40	97100	250400	2200	3200

Detailed Photos

LOW FRICTION COEFFICIENT 

EXCEPTIONAL TEMPERATURE STABILITY 

Delivers exceptionally low rolling friction through precision needle roller geometry and advanced surface treatments, reducing energy consumption and heat generation.

Operates reliably across wide temperature ranges without dimensional instability or performance degradation.

MINIMAL LUBRICATION REQUIREMENTS 

COST-EFFECTIVE PERFORMANCE SOLUTION 

Engineered to operate effectively with minimal lubrication, reducing maintenance costs and allowing operation in environments where lubrication access is limited.

Provides superior performance-to-cost ratio through extended service life, reduced maintenance requirements that eliminate the need for additional support structures.

FAQ

Q1: Are you a factory or a trader?
A: We are a manufacturer integrating industry and trade. Welcome to visit our company.
 
Q2: Can I add my logo to the product?
A: We support on-demand customization, including logo customization, color customization, appearance size customization, etc.
 
Q3: What payment methods do you support?
A: We support T/T, Western Union, PayPal, cash, etc. The details can be negotiated.
 
Q4: What are your modes of transportation?
A: We usually choose the appropriate mode of transportation (sea, air, land) according to the conditions of the goods, or we can choose the mode of transportation according to your requirements.
 
Q5: How can I get an accurate quotation?
A: You can first send your specific demand information and product pictures, and we will customize a solution for you according to your needs and inform you of the specific price.