Changzhou Nanter Bearing Co., Ltd. specializes in the production and sales of needle roller bearings. There are 5,000 specifications and varieties of needle roller bearings ranging from inner diameter 3mm to outer diameter 350mm, including drawn cup needle roller bearings: HK, BK, SCE, SCH, B, BH, BHM, F, FY and other series, cage bearings: K, KZK and other series, one-way clutch needle roller bearings: HF, HFL, RC, RCB and other series, thrust needle roller bearings: NTA, TRA, TRB, TRC ,TRD, AXK, AS and other series, solid ring needle roller bearings: NA, RNA, NK, NKI, MR, Ml, NKS, NKIS and other series, inner and outer rings: IR, LR, Ml and other series , cylindrical roller bearings: N, NF, NU, NUP, NUPK, SL01, SL02, SL18, SL19, SL04 and other series, support rollers, bolt rollers: KR, STO, NUTR, NATR, NUKR, CF, CFH, CYR, etc. series, solid ring needle roller bearings: NK, NKI, RNA, NA, NKS, NKIS, MR, Ml metric and imperial series, combined radial-thrust bearings: NKIA, NKIB, NX, NKZ, NKXR series, water pump shaft Connected bearings: WR, WB series, and can design and develop various types of bearings suitable for users' specific requirements according to users' requirements.
Bearing products are widely used in automobiles, motorcycles, electric/pneumatic tools, light industrial machinery, engineering machinery, printing machinery, machine tool industry, packaging machinery and other fields.
The company always regards customer satisfaction as the driving force and unremitting pursuit, and all employees continue to fulfill their commitments to customers.
For more products and information, please visit the official website The needle roller bearing without inner ring is suitable for the parts of which the radial size is limited. Because of no inner ring, the surface of shaft journal fitted with it is acted directly as rolling surface. It is requested that the surface hardness be no less than HRC60, surface roughness, no more than 0.63pm. This kind of bearing does not limit the axial shift of shaft and housing and has high limiting rotational speed.
The inner ring has no shoulder in this bearing. For this purpose, the inner ring, outer ring, complete set of needles and cage can be mounted respectively. This bearing does not limit the axial shift of shaft and outer housing. Since the cage separates the needles so as to reduce friction. It can be used for the parts with high rotational speed. | Shaft Diameter | Bearing Designation | Mass Approx | Boundary Dimensions | Basic Load Rating | Limiting Speed |
| Current Code | Original Code | Fw | D | C | Dynamic | Static | Oil |
| mm | g | mm | N | rpm |
| 5 | NK5/10TN | | 2.9 | 5 | 10 | 10 | 2100 | 1400 | 36780 |
| NK05/08 | | | 5 | 10 | 8 | | | |
| NK05/10TN-OH | | | 5 | 10 | 12 | 2350 | 1920 | 39000 |
| NK05/12TN | | 3.7 | 5 | 10 | 12 | 3000 | 2650 | 39000 |
| 6 | NK06/10 | | | 6 | 12 | 10 | 2600 | 2200 | 37000 |
| NK06/10TN | | | 6 | 12 | 10 | 2600 | 2200 | 37000 |
| NK06/12TN | | 5.7 | 6 | 12 | 12 | 3350 | 3150 | 37000 |
| RNA6X13X8TN | | | 6 | 13 | 8 | | | |
| 7 | NK07/10 | | 6.9 | 7 | 14 | 10 | 2850 | 2650 | 34000 |
| NK07/12 | | 8.2 | 7 | 14 | 12 | 3650 | 3600 | 34000 |
| 7.8 | RNA7.8169 | | | 7.8 | 16 | 9 | | | |
| 8 | NK8L 12TN | | 8.3 | 8 | 15 | 12 | 3950 | 4100 | 32000 |
| NK08/12 | | 8.7 | 8 | 15 | 12 | 3950 | 4100 | 32000 |
| NK08/16 | | 12 | 8 | 15 | 16 | 5100 | 5800 | 32000 |
| NK08/16TN | | | 8 | 15 | 16 | 5100 | 5800 | 32000 |
| RNA8X19X9 | | | 8 | 19 | 9 | | | |
| RN8X14X8 | | | 8 | 14 | 8 | | | |
| RNA496 | | | 8 | 15 | 10 | | | |
| RNA8X15X10TN | | | 8 | 15 | 10 | | | |
| 9 | NK09/12 | | 10.3 | 9 | 16 | 12 | | | |
| 10 | NK10/12TN | 462409K | 10 | 10 | 17 | 12 | 4750 | 5300 | 29000 |
| | 5624097 | 16.6 | 10 | 17 | 15 | 4860 | 7100 | 29000 |
| NK10/10 | | | 10 | 17 | 10 | | | |
| NK10/12 | | | 10 | 17 | 12 | | | |
| NK10/16 | | | 10 | 17 | 16 | 6200 | 7800 | 29000 |
| NK10/16TN | | | 10 | 17 | 16 | 6200 | 7800 | 29000 |
| NKS10 | | | 10 | 19 | 13 | 5800 | 6000 | 29000 |
| 12 | NK12/12TN | 644097 | 11.8 | 12 | 19 | 12 | 6000 | 6400 | 27000 |
| | 5624098 | 15.4 | 12 | 19 | 15 | 6400 | 7100 | 27000 |
| NK12/16 | | 16.8 | 12 | 19 | 16 | 8200 | 9800 | 27000 |
| 14 | NK14/16 | 4624900K | 20.8 | 14 | 22 | 16 | 10100 | 11500 | 25000 |
| NKS14 | | 27 | 14 | 25 | 16 | 1400 | 13800 | 24000 |
| RNA4900 | 4624900 | 24.4 | 14 | 22 | 13 | 8500 | 9000 | 25000 |
| RNA6900 | 6634900 | 29.1 | 14 | 22 | 22 | 12800 | 15600 | 25000 |
| NK14/12 | | | 14 | 22 | 12 | | | |
| NK14/20 | | | 14 | 22 | 20 | 12800 | 15600 | 25000 |
| 15 | NK15/12 | 644800K | 18.5 | 15 | 23 | 12 | 8600 | 11000 | 21000 |
| RNA152815 | | 31.7 | 15 | 28 | 15 | 13600 | 17200 | 24000 |
| | 7948/15 | 16.1 | 15 | 22 | 12 | 8200 | 9800 | 8500 |
| Shaft Diameter | Bearing Designation | Mass Approx | Boundary Dimensions | Basic Load Rating | Limiting Speed |
| Current Code | Original Code | Fw | D | C | Dynamic | Static | Oil |
| mm | g | mm | N | rpm |
| 5 | NK5/10TN | | 2.9 | 5 | 10 | 10 | 2100 | 1400 | 36780 |
| NK05/08 | | | 5 | 10 | 8 | | | |
| NK05/10TN-OH | | | 5 | 10 | 12 | 2350 | 1920 | 39000 |
| NK05/12TN | | 3.7 | 5 | 10 | 12 | 3000 | 2650 | 39000 |
| 6 | NK06/10 | | | 6 | 12 | 10 | 2600 | 2200 | 37000 |
| NK06/10TN | | | 6 | 12 | 10 | 2600 | 2200 | 37000 |
| NK06/12TN | | 5.7 | 6 | 12 | 12 | 3350 | 3150 | 37000 |
| RNA6X13X8TN | | | 6 | 13 | 8 | | | |
| 7 | NK07/10 | | 6.9 | 7 | 14 | 10 | 2850 | 2650 | 34000 |
| NK07/12 | | 8.2 | 7 | 14 | 12 | 3650 | 3600 | 34000 |
| 7.8 | RNA7.8169 | | | 7.8 | 16 | 9 | | | |
| 8 | NK8L 12TN | | 8.3 | 8 | 15 | 12 | 3950 | 4100 | 32000 |
| NK08/12 | | 8.7 | 8 | 15 | 12 | 3950 | 4100 | 32000 |
| NK08/16 | | 12 | 8 | 15 | 16 | 5100 | 5800 | 32000 |
| NK08/16TN | | | 8 | 15 | 16 | 5100 | 5800 | 32000 |
| RNA8X19X9 | | | 8 | 19 | 9 | | | |
| RN8X14X8 | | | 8 | 14 | 8 | | | |
| RNA496 | | | 8 | 15 | 10 | | | |
| RNA8X15X10TN | | | 8 | 15 | 10 | | | |
| 9 | NK09/12 | | 10.3 | 9 | 16 | 12 | | | |
| 10 | NK10/12TN | 462409K | 10 | 10 | 17 | 12 | 4750 | 5300 | 29000 |
| | 5624097 | 16.6 | 10 | 17 | 15 | 4860 | 7100 | 29000 |
| NK10/10 | | | 10 | 17 | 10 | | | |
| NK10/12 | | | 10 | 17 | 12 | | | |
| NK10/16 | | | 10 | 17 | 16 | 6200 | 7800 | 29000 |
| NK10/16TN | | | 10 | 17 | 16 | 6200 | 7800 | 29000 |
| NKS10 | | | 10 | 19 | 13 | 5800 | 6000 | 29000 |
| 12 | NK12/12TN | 644097 | 11.8 | 12 | 19 | 12 | 6000 | 6400 | 27000 |
| | 5624098 | 15.4 | 12 | 19 | 15 | 6400 | 7100 | 27000 |
| NK12/16 | | 16.8 | 12 | 19 | 16 | 8200 | 9800 | 27000 |
| 14 | NK14/16 | 4624900K | 20.8 | 14 | 22 | 16 | 10100 | 11500 | 25000 |
| NKS14 | | 27 | 14 | 25 | 16 | 1400 | 13800 | 24000 |
| RNA4900 | 4624900 | 24.4 | 14 | 22 | 13 | 8500 | 9000 | 25000 |
| RNA6900 | 6634900 | 29.1 | 14 | 22 | 22 | 12800 | 15600 | 25000 |
| NK14/12 | | | 14 | 22 | 12 | | | |
| NK14/20 | | | 14 | 22 | 20 | 12800 | 15600 | 25000 |
| 15 | NK15/12 | 644800K | 18.5 | 15 | 23 | 12 | 8600 | 11000 | 21000 |
| RNA152815 | | 31.7 | 15 | 28 | 15 | 13600 | 17200 | 24000 |
| | 7948/15 | 16.1 | 15 | 22 | 12 | 8200 | 9800 | 8500 |
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