Needle Roller Bearings Na4900, Na4901, Na4902, Na4903, Na4904, Na4905, Na4906, Na4907, Na4907, Na4908, Na4909, Na4910, Na4911, Na4912

• Customization: Available
• Cage: With Cage
• Rows Number: Single
• Model NO.: NA4900
• Style: With Outer Ring, With Inner Ring
• Material: Bearing Steel
• Type: Open
• Rolling Body: Roller Bearings
• The Number of Rows: Single
• Outer Dimension: Small (28-55mm)
• Spherical: Non-Aligning Bearings
• Separated: Separated
• Transport Package: Single Box Package or Industrial Rolled Package
• Specification: 10x14*22mm
• 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, KBK 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 9001:2015.
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	D	B	Cr	Cor	Oil
NA4900	10	14	22	13	8006	9000	23700	21.00
NA4901	12	16	24	13	5047	6352	20000	25.10
NA4902	15	20	28	13	6447	9053	18800	32.00
NA4903	17	22	30	13	7010	10010	17000	32.80
NA4904	20	25	37	17	11912	16594	16200	70.20
NA49/22	22	28	39	17	12996	19175	14360	76.00
NA4905	25	30	42	17	13452	20475	13832	76.00
NA49/28	28	32	45	17	13900	20100	13832	90.70
NA49/32	32	40	52	20	19000	32600	11134	150.00
NA4907	35	42	55	20	19800	41500	11134	151.00
NA4908	40	48	62	22	31036	63873	8567	123.00
NA4909	45	50	68	22	37000	96500	8052	260.00
NA4910	50	58	72	22	41000	72000	7526	264.00
NA4911	55	63	80	25	50600	96580	7156	386.00
NA4912	60	68	85	25	52800	110500	6022	412.00
NA4913	65	72	90	25	57500	110500	6022	435.00
NA4914	70	80	100	30	79000	154000	5111	712.00
NA4915	75	85	105	30	82000	158000	5111	765.00
NA4916	80	90	110	30	81000	170500	5111	870.00
NA4917	85	100	120	35	111000	237000	4600	1250.00
NA4918	90	105	125	35	114000	250000	4400	1312.00
NA4919	95	110	130	35	116000	260000	4200	1371.00
NA4920	100	115	140	40	120000	2740000	4000	1900.00
NA4922	110	125	150	40	132000	290000	3700	2070.00
NA4924	120	135	165	45	181000	890000	3400	2860.00
NA4926	130	150	180	50	223000	470000	3100	3900.00
NA4928	140	160	190	50	209000	500000	2900	4150.00

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.