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 solid collar needle roller bearing has compact structure, small radial size and large load carrying capacity. It is suitable for the parts of which the radial overall size is limited. It is also wide applied to the situation where the shaft or housing has the swinging motion. In general, the needle roller bearing only withstands the radial load, not the axial load. When the shaft has axial load, it can be used in combination with other bearings. However, it does not limit the axial shift of shaft or housing. The limiting rotational speed of needle roller bearing is lower. In high rotational speed of main machine, the needle roller bearing with cage shall be chosen as far as possible. In compassion with other types of needle roller bearings, under the situation of same radial size, the needle roller bearing has the large load carrying capacity and high rigidity but has high friction torque.
This kind of bearing has many series with different structure and size. It is requested that the hardness, processing accuracy and surface roughness of shaft journal surface and rolling surface of outer housing be same as those of the collar of bearing. As for the needle roller with G2 class, the diameter varies within 2pm in group. Except the full complement needle roller bearings, they have the rigid cages, which can correctly guide the parallel axis line of needle roller. | 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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