Nki Series Needle Bearing with Inner Ring Series for Printing Machinery/Tobacco Machinery/ Construction Machinery/Sewing Machinery

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

Product Description

NKI series needle bearing with inner ring series for printing machinery/tobacco machinery/ construction machinery/sewing machinery

 

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 diameter	Model number	Dimensions					Basic Load Ratings		Limiting
		d	Fw	D	B	r	Cr	Cor	Speed
mm						min.	kN	kN	rpm
5	NKI 5/12TN	5	8	15	12	0.3	3.9	4.1	32000
	NKI 5/16TN	5	8	15	16	0.3	5.1	5.8	32000
6	NKI 6/12TN	6	9	16	12	0.3	4.5	5	30000
	NKI 6/16	6	9	16	16	0.3	5.9	7.1	30000
7	NKI 7/12TN	7	10	17	12	0.3	4.75	5.5	29000
	NKI 7/16TN	7	10	17	16	0.3	6.2	7.8	29000
9	NKI 9/12	9	12	19	12	0.3	6.4	7.1	27000
	NKI 9/16	9	12	19	16	0.3	9	11	27000
10	NKI 10/16	10	14	22	16	0.3	11.0	12.5	19000
	NKI 10/20	10	14	22	20	0.3	12.8	15.6	19000
12	NKI 12/16	12	16	24	16	0.3	11.5	13.8	17000
	NKI 12/20	12	16	24	20	0.3	14.6	18.8	17000
15	NKI 15/16	15	19	27	16	0.3	13.8	18.5	14000
	NKI 15/20	15	19	27	20	0.3	17.6	25.1	14000
17	NKI 17/16	17	21	29	16	0.3	14.3	19.8	13000
	NKI 17/20	17	21	29	20	0.3	18.1	26.9	13000
20	NKI 20/16	20	24	32	16	0.3	15.1	22.3	12000
	NKI 20/20	20	24	32	20	0.3	19.3	30.3	12000
22	NKI 22/16	22	26	34	16	0.3	16.1	24.7	11000
	NKI 22/20	22	26	34	20	0.3	20.4	33.5	11000
25	NKI 25/20	25	29	38	20	0.3	22.1	33.9	10000
	NKI 25/30	25	29	38	30	0.3	33.5	57.9	9500
28	NKI 28/20	28	32	42	20	0.3	23.5	37.7	9000
30	NKI 30/20	30	35	45	20	0.3	24300	41500	13000
32	NKI 32/20	32	37	47	20	0.3	24900	43500	12000
35	NKI 35/20	35	40	50	20	0.3	26000	47000	11000
38	NKI 38/20	38	43	53	20	0.3	27000	51000	11000
40	NKI 40/20	40	45	55	20	0.3	27500	53000	10000
42	NKI 42/20	42	47	57	20	0.3	28500	56000	10000
45	NKI 45/25	45	50	62	25	0.6	38000	74000	9000
50	NKI 50/25	50	55	68	25	0.6	43.7	81.7	6000
55	NKI 55/25	55	60	72	25	0.6	43.1	90.7	5500
60	NKI 60/25	60	68	82	25	0.6	48.6	100.6	4900
65	NKI 65/25	65	73	90	25	1.0	54.2	100.8	4600
70	NKI 70/25	70	80	95	25	1.0	54.7	113.4	4100
75	NKI 75/25	75	85	105	25	1.0	71.7	126.5	3900
80	NKI 80/25	80	90	110	25	1.0	74.9	136.0	3700
85	NKI 85/26	85	95	115	26	1.0	79.5	149.4	3600
90	NKI 90/26	90	100	120	26	1.0	82.3	159.5	3500
95	NKI 95/26	95	105	125	26	1.0	83.6	164.8	3300
100	NKI 100/30	100	110	130	30	1.1	100.9	213.9	3100
110	NKI 110/30	110	120	140	30	1.1	113	275	3900

 

 

 

 

We also offer other model as below

K series needle roller bearings

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