Textile Parts Pna12/28 Pna15/32 Rpna18/32 Pna30/52 Self-Agling Needle Roller Bearing

• Cage: With Cage
• Rows Number: Single
• Load Direction: Radial Bearing
• Style: Without Inner Ring, With Inner Ring
• Material: Bearing Steel
• Type: Closed
• Model NO.: PNA12/28
• Transport Package: as Your Request
• Specification: All size in stock
• Trademark: Edinh
• Origin: China
• Production Capacity: 500000/20 Days

Product Description

Textile parts PNA12/28  PNA15/32 RPNA18/32 PNA30/52 self-agling needle roller bearing

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	Weight
			Bearing Dimensions					Basic Load Rating		Limiting Speed
			d	Fw	D	B	D1	Cr	Cor
				F		C		Dynamic	Static
mm		g	mm					N		rpm
Without inner ring
15	RPNA 15/28	32	--	15	28	12	24.5	4660	5700	24000
18	RPNA 18/32	52	--	18	32	16	27	9800	14000	22000
20	RPNA 20/35	62	--	20	35	16	30.5	10500	15500	21000
25	RPNA 25/42	109	--	25	42	20	36.5	14900	27800	18000
28	RPNA 28/44	112	--	28	44	20	38.5	20500	31900	16000
30	RPNA 30/47	125	--	30	47	20	42	20980	33500	15000
35	RPNA 35/52	131	--	35	52	20	47.5	21500	39600	13000
40	RPNA 40/55	141	--	40	55	20	50.5	24000	44700	11000
45	RPNA 45/62	176	--	45	62	20	58	24800	50900	10000
With inner ring
12	PNA 12/28	37	12	15	28	12	24.5	4660	5700	24000
15	PNA 15/32	62	15	18	32	16	27	9800	14000	22000
17	PNA 17/35	73	17	20	35	16	30.5	10500	15500	21000
20	PNA 20/42	136	20	25	42	20	36.5	14900	27800	18000
22	PNA 22/44	145	22	28	44	20	38.5	20500	31900	16000
25	PNA 25/47	157	25	30	47	20	42	20980	33500	15000
30	PNA 30/52	181	30	35	52	20	47.5	21500	39600	13000
35	PNA 35/55	177	35	40	55	20	50.5	24000	44700	11000
40	PNA 40/62	227	40	45	62	20	58	24800	50900	10000

We also offer other model as below

K series needle roller bearings

.