Needle Roller Bearings Na4900 2RS, Na4901 2RS, Na4902 2RS, Na4903 2RS, Na4904 2RS, Na4905 2RS, Na4906 2RS, Na4907 2RS, Na4908 2RS, Na4909 2RS, Na4910 2RS

• Rolling Body: Roller Bearings
• The Number of Rows: Single
• Outer Dimension: Small and Medium-Sized (60-115mm)
• Material: Bearing Steel
• Spherical: Non-Aligning Bearings
• Load Direction: Radial Bearing
• Model NO.: NA4900 2RS
• Separated: Separated
• Transport Package: Single Box Package or Industrial Rolled Package
• Specification: 10*22*14mm
• Trademark: TIK or your mark
• Origin: China
• HS Code: 84824000
• Production Capacity: 500000 PCS Per Month

Product Description

Needle roller bearings contain many slender rollers with a length 3 to 10 times their diameter. Therefore, the ratio of the bearing outside diameter to the inscribed circle diameter is small, and they have a rather high radial load capacity. There are numerous types available, and many have no inner rings. The drawn-cup type has a pressed steel outer ring and the solid type has a machined outer ring. There are also cage-and-roller assemblies without rings. Most bearings have pressed steel cages, but some are without cages.
 

Model Number	HK series, BK series, HK…RS series, HK…2RS series, BK…RS series, F series, FH series, MF series,
	HF series, HFL series, K series, K…ZW series, KZK series,series, NK series, NKS series, RNA49 series,
	RNA69 series, NKI series, NKIS series, NA49 series, NA69 series, NA48 series, NAO series, RNAO series,
	RNA49…RS series, RNA49… 2RS series, RNAV series, NAV series, RPNA series, PNA series, IR series,
	LR series, AXK series, AXW series, RSTO series, STO series, RNA2200 series, RNA2200…2RS series,
	NA2200 series, NATR series, NATV series, NUTR series, PWTR series, NNTR series, KR series, KRE series,
	KRV series, NUKR series, NUKRE series, PWKR series, PWKRE series.
Type	needle roller bearing.
Number of Row	single row, double row, multi row.
Material	supreme chrome steel 100Cr6.
Cage Material	steel, brass, nylon.
Hardness	HRC 60-64.
Precision Rating	P0, P6, P5.
Radial Clearance	C0, C2, C3, C4, C5.
Sealing Type	open, 2RS.
Grease	as per your requirement, such as Chevron SRI-2 ,Multemp PS2, Shell Alvania R2, Changcheng 2 and so on.
Certification	ISO 9001:2008.
Mark	TIK or your mark.
Package	single box package, industrial rolled package or as per buyer's requirement.
Place of Origin	China (Mainland).
Features	(1) high precision;
	(2) high speed;
	(3) high load carrying capacity;
	(4) low noise;
	(5) long life span.
Application	transport machinery, CNC machine, sewing machinery, handcart, physical exercise apparatus, motorcycle,
	automobile, electric tool, leisure toys, textile machinery, printing machinery etc.
Payment Term	30% deposit, 70% is paid by TT or L/C or Western Union.
Shipment time	ready stock, immediate shipment.
Shipping Port	Shanghai, Tianjin or Qingdao.
Samples	free samples are available.

 

Bearing No.	Boundary dimensions(mm)					Basic load ratings(N)		Limiting speeds(rpm)	Mass(g)
	d	Fw(F)	D	C	B	Cr	Cor	Oil
NA4900-2RS	10	14	22	13	14	4560	4660	13000	24.50
NA4901-2RS	12	16	24	13	14	5980	9500	12000	27.50
NA4902-2RS	15	20	28	13	14	5980	9500	10000	37.00
NA4903-2RS	17	22	30	13	14	6050	10100	9000	40.00
NA4904-2RS	20	25	37	17	18	14900	17500	7500	80.00
NA4905-2RS	25	30	42	17	18	16300	21500	6500	89.50
NA4906-2RS	30	35	47	17	18	20050	24900	5500	104.00
NA4907-2RS	35	42	55	20	21	22500	37000	4800	175.00
NA4908-2RS	40	48	62	22	23	33050	50900	4200	252.00
NA4909-2RS	45	52	68	22	23	34800	56800	3900	290.00
NA4910-2RS	50	58	72	22	23	37800	61500	3500	295.00

 

Packaging & Shipping

 

FAQ

 

Q1: Are you a manufacturer or a trading company?
A: We have been a professional manufacturer of bearings since 1995 with ISO9001:2015 certificate.

Q2: How is the quality level of your bearings?
A: Our bearings are made of supreme GCr15 bearing steel and are produced with the first class workmanship. The tolerance grade could be P0, P6, P5, P4. The vibration level could be Z1V1, Z2V2, Z3V3.

Q3: Can I get samples to see the quality?
A: Yes, samples are free, but the courier charge shall be borne by the buyer.

Q4: Could you offer OEM service and print my logo/mark on the products?
A: Yes, we could. Please send us your mark registration files, we shall print your logo/mark on the bearings and package.

Q5: How is the lead time?
A: For regular items that are in stock, we could make shipment immediately right after your payment. If the goods are not in stock, our production time is from 15 to 45 days according to the quantity.

Q6: What if I receive defective product for my order?
A: All our bearings are 100% inspected strictly before packing. If you receive any defective product, please provide us photos or videos to show the problem. After confirmation, we shall send you the new product as replacement free of charge.

Q7: What is your term of payment?
A: Term of payment is negotiable. Usually it is 30% deposit in advance, and the balance 70% is paid when the goods are ready for shipment.