Auto Parts Best Price Natb 5903 Combined Needle Roller Angular Contact Ball Bearing 17*30*20mm

• Vibration: Z1V1 Z2V2 Z3V3
• Lubrication: Oil Lubrication
• Precision Rating: P0 P6 P5
• Feature: Best Price, High Speed, Long Life
• OEM: Available
• Hardness: 59-63HRC
• Model NO.: Needle Roller Bearings
• Rolling Body: Roller Bearings
• The Number of Rows: Double
• Outer Dimension: Small and Medium-Sized (60-115mm)
• Material: Bearing Steel
• Spherical: Non-Aligning Bearings
• Load Direction: Axial Bearing
• Separated: Unseparated
• Transport Package: OEM
• Specification: Standard Size
• Trademark: oem
• Origin: China
• Production Capacity: 10000000

Product Description

Product Description

Needle Roller Bearing

Needle roller bearings are roller bearings with cylindrical rollers that are thin and long relative to their diameter. Such rollers are called needle rollers. Despite the smaller cross-section, the bearing still has a high load-carrying capacity. Needle roller bearings are equipped with slender rollers (roller diameter D≤5mm, L/D≥2.5, L is the length of the roller), so the radial structure is compact, and the inner diameter and bearing capacity are the same as other types of bearings. The smallest, especially suitable for support structures with limited radial installation dimensions.

Size: 5mm-500mm

Optional material: Bearing steel/stainless steel/carbon steel

Product accuracy class: P0 P6 P5

Cage Type: Material Stamping steel plate

Feature
Depending on the application, bearings without inner rings or needle roller cage assemblies can be selected. In order to ensure the same load capacity and running performance as the ring bearing, the hardness, machining accuracy and surface quality of the raceway surface of the shaft or housing hole should be similar to the raceway of the bearing ring.
 

 

1. High transmission efficiency
The friction coefficient of rolling bearings is smaller than that of sliding bearings, and the transmission efficiency is high.

2. Easy to maintain
Rolling bearings have been standardized, serialized and generalized, suitable for mass production and supply, and are very convenient to use and maintain;

3. High mechanical properties and long service life
Rolling bearings are made of bearing steel and heat treated. Therefore, rolling bearings not only have higher mechanical properties and longer service life, but also save more expensive non-ferrous metals used in the manufacture of sliding bearings;

4. Small clearance and high precision
The internal clearance of the rolling bearing is small, and the machining accuracy of each part is high, so the running accuracy is high. At the same time, the stiffness of the bearing can be increased by preloading.

5. Low calorific value
Due to the high transmission efficiency and low calorific value of rolling bearings, the consumption of lubricating oil can be reduced, and the lubrication and maintenance are more convenient;

6. Wide application space
Rolling bearings can be easily applied to any axis in space;

7. Large carrying capacity
Needle roller bearings have high load-carrying capacity and are suitable for support structures with limited mounting dimensions.

Bearing type	Internal Diameter	Outer Diameter	Width	Bearing type	Internal Diameter	Outer Diameter	Width
	d	D	B		d	D	B
	(mm)	(mm)	(mm)		(mm)	(mm)	(mm)
BK0408	4	8	8	K10X14X13	10	14	13
BK0509	5	9	9	K10X15X15	10	15	15
BK0609	6	10	9	K10X16X12	10	16	12
BK0709	7	11	9	K12X15X10	12	15	10
BK0808	8	12	8	K12X15X13	12	15	13
BK0810	8	12	10	K12X16X10	12	16	10
BK0910	9	13	10	K12X16X13	12	16	13
BK0912	9	13	12	K12X18X12	12	18	12
BK1010	10	14	10	K14X18X10	14	18	10
BK1012	10	14	12	K14X18X13	14	18	13
BK1210	12	16	10	K14X18X15	14	18	15
BK1412	14	20	12	K14X18X17	14	18	17
BK1416	14	20	16	K14X20X12	14	20	12
BK1512	15	21	12	K15X19X10	15	19	10
BK1516	15	21	16	K15X19X13	15	19	13
BK1612	16	22	12	K15X20X13	15	20	13
BK1616	16	22	16	K16X20X10	16	20	10
BK1712	17	23	12	K16X20X13	16	20	13
BK1812	18	24	12	K16X20X17	16	20	17
BK1816	18	24	16	K16X22X12	16	22	12
BK2012	20	26	12	K16X22X17	16	22	17
BK2016	20	26	16	K17X21X10	17	21	10
BK2212	22	28	12	K17X21X13	17	21	13
BK2216	22	28	16	K17X21X15	17	21	15
BK2512	25	32	12	K17X21X17	17	21	17
BK2516	25	32	16	K17X23X15	17	23	15
BK2520	25	32	20	K18X22X10	18	22	10
BK2816	28	35	16	K18X22X13	18	22	13
BK2820	28	35	20	K18X22X17	18	22	17
BK3012	30	37	12	K18X23X20	18	23	20
BK3016	30	37	16	K18X24X12	18	24	12
BK3020	30	37	20	K18X24X17	18	24	17
BK3512	35	42	12	K18X24X20	18	24	20
BK3520	35	42	20	K20X24X10	20	24	10
BK4012	40	47	12	K20X24X13	20	24	13
BK4020	40	47	20	K20X24X17	20	24	17
BK4520	45	52	20	K20X26X12	20	26	12
BK5020	50	58	20	K20X26X17	20	26	17
BK5520	55	63	20	K20X26X20	20	26	20
BK6020	60	68	20	K22X26X10	22	26	10
HK0408	4	8	8	K22X26X13	22	26	13
HK0509	5	9	9	K22X26X17	22	26	17
HK0608	6	10	8	K25X29X10	25	29	10
HK0609	6	10	9	K25X29X13	25	29	13

Bearing type	Internal Diameter	Outer Diameter	Width	Bearing type	Internal Diameter	Outer Diameter	Width
	d	D	B		d	D	B
	(mm)	(mm)	(mm)		(mm)	(mm)	(mm)
HK0709	7	11	9	K25X29X17	25	29	17
HK0808	8	12	8	K25X30X13	25	30	13
HK0810	8	12	10	K25X30X17	25	30	17
HK0910	9	13	10	K25X30X20	25	30	20
HK0912	9	13	12	K25X31X17	25	31	17
HK1010	10	14	10	K25X32X16	25	32	16
HK1012	10	14	12	K28X33X13	28	33	13
HK1210	12	16	10	K28X33X17	28	33	17
HK1412	14	20	12	K28X33X27	28	33	27
HK1416	14	20	16	K28X34X17	28	34	17
HK1512	15	21	12	K28X35X16	28	35	16
HK1516	15	21	16	K30X35X13	30	35	13
HK1612	16	22	12	K30X35X17	30	35	17
HK1616	16	22	16	K30X35X27	30	35	27
HK1712	17	23	12	K30X37X16	30	37	16
HK1812	18	24	12	K30X37X20	30	37	20
HK1816	18	24	16	K32X37X13	32	37	13
HK2010	20	26	10	K32X37X17	32	37	17
HK2012	20	26	12	K32X37X27	32	37	27
HK2016	20	26	16	K32X38X20	32	38	20
HK2210	22	28	10	K32X39X20	32	39	20
HK2212	22	28	12	K35X40X13	35	40	13
HK2216	22	28	16	K35X40X17	35	40	17
HK2512	25	32	12	K35X40X27	35	40	27
HK2516	25	32	16	K35X42X16	35	42	16
HK2520	25	32	20	K35X42X20	35	42	20
HK2816	28	35	16	K38X46X20	38	46	20
HK2820	28	35	20	K40X45X13	40	45	13
HK3012	30	37	12	K40X45X17	40	45	17
HK3016	30	37	16	K40X45X27	40	45	27
HK3020	30	37	20	K40X46X17	40	46	17
HK3512	35	42	12	K40X47X20	40	47	20
HK3520	35	42	20	K40X48X20	40	48	20
HK4012	40	47	12	K40X48X25	40	48	25
HK4020	40	47	20	K42X47X13	42	47	13
HK4512	45	52	12	K42X47X27	42	47	27
HK4520	45	52	20	K45X50X17	45	50	17
HK5020	50	58	20	K45X50X27	45	50	27
HK5520	55	63	20	K45X53X20	45	53	20
HK6020	60	68	20	K45X53X25	45	53	25
K100X108X30	100	108	30	K48X53X17	48	53	17
K10X13X10	10	13	10	K50X55X20	50	55	20
K10X13X13	10	13	13	K50X58X20	50	58	20
K10X14X10	10	14	10	K50X58X25	50	58	25

Application
Needle roller bearings are mainly used in automobiles, motorcycles, mopeds, power tools, textile machinery, agricultural machinery, industrial sewing machines, construction machinery, etc.

 

APPLICATION

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FAQ

Q: Are you trading company or manufacturer ?
A: We are factory. Welcome to visit our factory.

Q: How to get price ?
A: Please send inquiry directly. Our salesman replys very fast.

Q: Do you provide Free Samples ?
A: Yes, we could offer you free samples, but do not pay the cost of freight.

Q: What's the MOQ ?
A: The MOQ depends on bearing's model number and price.Usually the total cost will be $1000 at least.

Q: What's your Payment Terms ?
A:  T/T (Bank Wire)
Western Union
Money Grame
Paypal

Q: How long is your lead-time?
A: Generally it is 2 to 4 days if the goods are in stock, or it will be about 6 to 15 days depends on quantity.