Needle Roller Bearings Nki8, Nki9/12, Nki10/16, Nki12/20, Nki15/16, Nki15/20, Nki17/16, Nki20/16, Nki22/16, Nki25/30, Nki35/30

• Customization: Available
• Cage: With Cage
• Rows Number: Single
• Model NO.: NKI8
• Load Direction: Radial Bearing
• 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: 8x25*16mm
• 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
NKI8	8	14	25	16	12400	11300	21500	46.00
NKI9/12	9	12	19	12	6200	7002	21700	14.60
NKI10/16	10	14	22	16	9808	10500	19650	27.30
NKI12/20	12	16	24	20	14000	18400	21000	39.00
NKI15/16	15	19	27	16	8847	12853	19100	38.00
NKI15/20	15	19	27	20	12347	19053	19100	45.70
NKI17/16	17	21	29	16	13000	18200	20000	41.40
NKI20/16	20	24	32	16	10800	17000	16700	48.50
NKI22/16	22	25	34	16	8721	15340	16200	50.00
NKI25/30	25	29	38	30	31500	56000	14000	115.00
NKI35/30	35	40	50	30	22200	51350	11134	165.00
NKI40/20	40	45	55	20	22000	48000	10127	124.00
NKI40/30	40	45	55	30	35000	86000	10127	184.00
NKI42/20	42	47	57	20	26000	52500	9500	138.00
NKI45/25	45	50	62	25	36000	70000	8567	218.00
NKI45/35	45	50	62	35	41500	102000	8567	289.00
NKI50/25	50	55	68	25	32000	78000	7890	262.00
NKI55/35	55	60	72	35	48000	126800	7256	357.00
NKI60/25	60	68	82	25	35500	85000	7156	388.00

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.