What is the minimum order quantity (MOQ)?

Stock models can be supplied in small quantities, and non-standard bearings can be custom-made even in small batches. Send us the model number or drawing and we will confirm the MOQ with your quotation.

Can you supply bearings under our own brand?

Yes. NKEN offers full OEM service: your brand laser-marked on the bearing rings, custom colour boxes and labels, so the goods arrive ready for your shelf.

Do you provide free samples?

Yes, free samples are available for most catalogue models so you can test quality and fit before placing a bulk order.

What information do you need to quote?

The bearing model number (or the brand cross-reference number you currently buy), quantity, delivery destination, and any special requirements such as clearance, seals or branding. A drawing is enough for non-standard parts.

Which countries do you export to?

NKEN bearings are exported to more than 73 countries, with sea and air shipping options and export packing as standard.

Canonical URL: https://nkenbearings.com/products/needle-roller-bearings/

Needle roller bearings HK drawn cup and NA machined ring types for gearboxes and automotive assemblies

Needle Roller Bearings — HK / BK / RNA / NA & Cage Assemblies

Needle roller bearings are where NKEN started: the company was founded on needle bearings in 2003, built its first factory in 2004, and the Jiangsu factory has specialised in this family since the 2007 joint investment. The range covers HK and BK drawn-cup bearings, RNA and NA machined-ring bearings, needle roller and cage assemblies (K series), and combined radial/axial types for gearboxes, steering systems, pumps and automotive assemblies.

High load capacity in a very low section height is the reason design engineers choose needle rollers. The full HK, BK, NK, RNA and NA range — 105 models — is tabled below; the Jiangsu line also produces inch sizes and specials to drawing in small quantities.

The founding NKEN product line (2003), produced at the Jiangsu factory
HK/BK drawn-cup, RNA/NA machined-ring, K cage assemblies, combined types
Compact radial section with high load capacity for gearboxes and automotive units
Sealed drawn-cup executions (RS) available
Non-standard and small-batch production to drawing

Types	HK, BK, SCE, RNA, NA, K, NK, combined needle bearings
Bore range	From 3 mm (group range starts at 3 mm bore)
Production base	Jiangsu factory — needle roller specialist line
Seals	Open or RS sealed (drawn cup)
Applications	Gearboxes, steering, pumps, compressors, automotive, power tools

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Needle Roller Bearings — models, dimensions & cross-reference

Full range (105 models)

Model	Fw / d (mm)	D (mm)	Width (mm)
BK0306TN	3	6.5	6
BK0408TN	4	8	8
BK0509	5	9	9
BK0608	6	10	8
BK0609	6	10	9
BK0709	7	11	9
BK0808	8	12	8
BK0908	9	13	8
BK0910	9	13	10
BK0912	9	13	12
BK1414	14	20	14
BK2018	20	26	18
HK0306TN	3	6.5	6
HK0408TN	4	8	8
HK0509	5	9	9
HK0509TN	5	11	9
HK0510	5	9	10
HK0606	6	10	6
HK0607	6	10	7
HK0608	6	10	8
HK0609	6	10	9
HK0611	6	10	11
HK0708	7	11	8
HK0709	7	11	9
HK0712	7	11	12
HK0808	8	12	8
HK0808TN	8	12	8
HK0810	8	12	10
HK0812	8	12	12
HK0908	9	13	8
HK0910	9	13	10
HK0911	9	13	11
HK0912	9	13	12
HK1012	10	14	12
HK1014	10	14	14
HK1214	12	18	14
HK1216	12	18	16
HK1414	14	20	14
HK1514	15	21	14
HK1516	15	21	16
HK1518	15	21	18
HK1520	15	21	20
HK1614	16	22	14
HK1616	16	22	16
HK1620	16	22	20
HK1625	16	22	25
HK1814	18	24	14
HK1816	18	24	16
HK2016	20	26	16
HK2018	20	26	18
HK2020	20	26	20
HK2212	22	28	12
HK2214	22	28	14
HK2218	22	28	18
HK2220	22	28	20
HK2518	25	32	18
HK2520	25	32	20
HK2524	25	32	24
HK2530	25	32	30
HK3016	30	37	16
HK3018	30	37	18
HK3020	30	37	20
HK3024	30	37	24
HK3516	35	42	16
HK3518	35	42	18
HK3520	35	42	20
HK4016	40	47	16
HK4020	40	47	20
HK4518	45	52	18
HK4520	45	52	20
HK5024	50	58	24
NK05/08	5	10	8
NK05/12TN	5	10	12
NK06/10	6	12	10
NK06/10TN	6	12	10
NK06/12TN	6	12	12
NK07/10	7	14	10
NK07/12	7	14	12
NK08/12	8	15	12
NK08/16	8	15	16
NK08/16TN	8	15	16
NK10/10	10	17	10
NK10/12TN	10	17	12
NK10/16	10	17	16
NK10/16TN	10	17	16
NK12/12TN	12	19	12
NK12/16	12	19	16
NK14/12	14	22	12
NK14/16	14	22	16
NK14/20	14	22	20
NK15/12	15	23	12
NK5/10TN	5	10	10
RNA4900	14	22	13
RNA4901RS	16	24	13
RNA4906RS	35	47	17
NA4822	110	140	30
NA4824	120	150	30
NA4826	130	165	35
NA4828	140	175	35
NA4844	220	270	50
NA4920	100	140	40
NA4922	110	150	40
NA4924	120	165	45
NA4926	130	180	50
NA4928	140	190	50

Fw is the raceway diameter for types without an inner ring (HK / BK / NK / RNA); d is the bore for NA types with an inner ring.

Full needle range above — 105 models. K cage assemblies dimensioned to your shaft and housing, inch sizes and specials to drawing are also produced — confirmed per inquiry.

Applications

Agriculture Trucks & Commercial Vehicles Electric Motors & VFD

Needle Roller Bearings — questions buyers ask

What is the difference between HK and BK needle bearings?

HK drawn-cup bearings are open at both ends; BK have one closed end for end-of-shaft positions. Dimensions are otherwise the same for the same number.

Can you supply needle roller and cage assemblies to our drawing?

Yes — K-series cage assemblies are dimensioned to your shaft (raceway) and housing bore. Send the shaft/housing sizes or a drawing and quantity.

Do you produce needle bearings in small quantities?

Yes. Non-standard customisation, including small batches, is a standard NKEN service — the Jiangsu needle line runs specials alongside catalogue production.

Get a quote for Needle Roller Bearings

Tell us the model and quantity — we reply with price, stock status and delivery time. Free samples available for most models. Prefer to talk? WhatsApp James Ke at +86 188 9536 7568 (24/7 support).