Na49 Series Needle Bearing for Automobiles/Office Equipment/ Washing Machines/Motor

• Cage: With Cage
• Rows Number: Single
• Load Direction: Radial Bearing
• Style: Without Inner Ring, With Inner Ring
• Material: Bearing Steel
• Type: Closed
• Model NO.: NA49 series
• Transport Package: as Your Request
• Specification: All size in stock
• Trademark: Edinh
• Origin: China
• Production Capacity: 500000/20 Days

Product Description

NA49 series needle bearing for automobiles/office equipment/ washing machines/Motor

 

 

Desicrption
 

Needle roller bearing (solid ring needle roller bearing) The solid ring needle roller bearing is composed of a ring and a needle roller group with a cage. It has smaller volume and higher carrying capacity. Therefore, this kind of bearing can meet the requirements of light weight, small space and large transmission power. Depending on the application, bearings with or without an inner ring are available
Inner ring needle roller bearings RNA, NK type
 
Needle roller bearings without inner ring are suitable for components with limited radial dimensions. Because there is no inner ring, the journal surface that matches it directly serves as the rolling surface. It is required that the surface hardness is not lower than HRC6O, and the surface roughness ra value is not more than 0.63um. This kind of bearing does not limit the axial displacement of the shaft or the shell, and the limit speed is high.
 
There are inner ring needle roller bearings NA, NKI type
 
This kind of solid ferrule needle roller bearing has no ribs on the inner ring, so the inner ring, the outer ring, the full set of needle rollers and the cage can be installed separately without restricting the axial displacement of the shaft or the housing. Because the cage separates the needle rollers and reduces friction, it can be used in components with higher rotational speeds.
 
Needle roller bearings without inner ring with cage
NA and NKI type bearings without inner ring are RNA and NK type needle roller bearings.
This kind of bearing has no inner ring and is suitable for the support structure with limited radial installation size, and the journal matched with the bearing directly serves as the rolling surface. As the shaft of the raceway surface, the hardware must be hardened and ground, and only when it is processed to the appropriate size and shape accuracy, the complete set of needle roller bearings can achieve high life and running accuracy. At the same time, since there is no inner ring, the diameter of the shaft can also be appropriately increased, thereby increasing the rigidity.

Sealed needle roller bearings with or without inner ring
Needle roller bearings sealed on one or both sides can effectively prevent the intrusion of dirt, and the bearing has been filled with an appropriate amount of lithium-based grease. The inner ring of this type of bearing is wider than the outer ring, which enables the bearing to ensure a good seal even when the shaft has a slight displacement relative to the bearing housing to avoid contamination of the bearing. The inner ring of the bearing also has lubricating oil holes, which can be supplemented by the outer ring or the inner ring according to the needs of the configuration.


We offer different types
 

RNA4900 14*22*13 No inner ring solid ferrule needle roller bearing

NA4900 10*22*13 Needle roller bearing with inner ring solid ring

RNA4900RS 14*22*13 No inner ring single seal solid ring needle roller bearing

NA4900RS 10*22*14 Solid ring needle roller bearing with inner ring seal

RNA4900.2RS 14*22*13 No inner ring double seal solid ring needle roller bearing

NA4900.2RS 10*22*14 Solid ring needle roller bearing with inner ring seal

IR101413 IR101414 OH inner ring available from stock


Application

Heavy industry machine tool parts matching
gearbox
transfer case
engine
Steering and Braking System
Axle support end
outboard engine
electrical tools
copier
printing press
fax machine
All kinds of machinery

Stock bearing model number

 

Shaft	Designation	Mass	Dimensions					Basic Load Ratings		Limiting
Diameter			d	F	D	B	r	Cr	Cor	Speed
								Dynamic	Static
mm		g					min.	kN	kN	rpm
10	NA 4900	23.0	10	14	22	13	0.3	8.6	9.2	20000
12	NA 4901	26.0	12	16	24	13	0.3	9.6	10.9	17000
15	NA 4902	34.0	15	20	28	13	0.3	10.8	13.9	14000
17	NA 4903	37.0	17	22	30	13	0.3	11.6	15.4	12000
20	NA 4904	75.2	20	25	37	17	0.3	20.9	25.1	11000
22	NA 49/22	80.0	22	28	39	17	0.3	23.1	29.1	9500
25	NA 4905	88.0	25	30	42	17	0.3	23.5	30.7	9500
28	NA 49/28	97.7	28	32	45	17	0.3	24.8	33.2	8500
30	NA 4906	101.0	30	35	47	17	0.3	25.5	35.4	8000
32	NA 49/32	158.0	32	40	52	20	0.6	31.6	46.8	7000
35	NA 4907	170.0	35	42	55	20	0.6	32.5	51.0	7000
40	NA 4908	230.0	40	48	62	22	0.6	43.4	66.1	6000
45	NA 4909	271.0	45	52	68	22	0.6	45.8	72.9	5500
50	NA 4910	274.0	50	58	72	22	0.6	48.0	80.0	5000
55	NA 4911	393.0	55	63	80	25	1.0	63.5	110.1	4700
60	NA 4912	426.0	60	68	85	25	1.0	66.4	119.6	4300
65	NA 4913	456.0	65	72	90	25	1.0	67.6	124.6	4100
70	NA 4914	728.0	70	80	100	30	1.0	91.8	169.9	3800
75	NA 4915	775.0	75	85	105	30	1.0	95.8	183.3	3600
80	NA 4916	878.0	80	90	110	30	1.0	97.3	190.4	3400
85	NA 4917	1250.0	85	100	120	35	1.1	119.0	255.2	3100
90	NA 4918	1312.0	90	105	125	35	1.1	120.6	263.7	3000
95	NA 4919	1371.0	95	110	130	35	1.1	124.7	279.7	2800
100	NA 4920	1900.0	100	115	140	40	1.1	151.4	313.9	2900
110	NA 4922	2070.0	110	125	150	40	1.1	152.8	326.1	2600
120	NA 4924	2860.0	120	135	165	45	1.1	208.0	425.3	2300
130	NA 4926	3014.0	130	150	180	50	1.5	233.0	508.9	2000
140	NA 4928	2860.0	140	160	190	50	1.5	241.3	543.9	1700
150	NA 4930	3000	150	170	210	60	1.5	241.3	543.9	1700

We also offer other model as below

K series needle roller bearings

.