Needle Roller Bearings without Inner Ring Hardened Chrome Steel NK/NKS/RNA49/RNA69 Series
Without Inner Ring Type-Metric
Materials:
• 52100 Hardened Chrome Steel Needle Bearing
• Low Carbon Steel Cage
Feature:
The bearing without inner ring is the best choice for the shaft which is well heat treated and grinding.
The needle roller bearing without inner ring has bigger axial play than the bearing with inner ring.
Applications:
The heavy duty roller bearing is widely used for automobile, motocycle, electric tools, textile machines, printing machinery, food packing machinery, etc..
Shaft Dia |
Bearing No. | Mass
Approx. |
Boundary Dimensions |
Basic Load Rating |
Limiting
Speed |
| Fw | D | C | Cr
Dynamic | Cor
Static |
Oil |
| mm |
Series | Substituted | g | mm | N | rpm |
| NK | NKS | RNA49 | RNA69 |
| 5 | NK5/10TN | -- | -- | -- | -- | 2.9 | 5 | 10 | 10 | 2100 | 1400 | 36780 |
| 8 | NK8/12TN | -- | -- | -- | -- | 8.3 | 8 | 15 | 12 | 3050 | 3650 | 29112 |
| 10 | NK10/12 | -- | -- | -- | 4624097K | 10 | 10 | 17 | 12 | 4750 | 5350 | 23500 |
| -- | -- | -- | -- | 5624097 | 16.6 | 10 | 17 | 15 | 4860 | 7100 | 23500 |
| 12 | NK12/12 | -- | -- | -- | 644079 | 11.8 | 12 | 19 | 12 | 6050 | 6400 | 21640 |
| -- | -- | -- | -- | 5624098 | 15.4 | 12 | 19 | 15 | 6400 | 7100 | 21640 |
| NK12/16 | -- | -- | -- | -- | 16.8 | 12 | 19 | 16 | 8200 | 9800 | 21640 |
| 14 | NK15/16 | -- | -- | -- | 4624900K | 20.8 | 14 | 22 | 16 | 8260 | 9600 | 18322 |
| -- | NKS14 | -- | -- | -- | 27 | 14 | 25 | 16 | 10400 | 10800 | 17652 |
| -- | -- | RNA4900 | -- | 4624900 | 24.4 | 14 | 22 | 13 | 8060 | 9000 | 18322 |
| -- | -- | -- | RNA6900 | 6634900 | 29.1 | 14 | 22 | 22 | 8281 | 11612 | 18322 |
| 15 | NK15/12 | -- | -- | -- | 644800K | 18.5 | 15 | 23 | 12 | 8600 | 10070 | 21004 |
| -- | -- | RNA152815 | -- | -- | 31.7 | 15 | 28 | 15 | 13600 | 17200 | 10031 |
| -- | -- | -- | -- | 7948/15 | 16.1 | 15 | 22 | 12 | 8200 | 9800 | 8412 |
| -- | -- | -- | -- | 644302 | 18.2 | 15 | 25 | 12 | 10600 | 13500 | 17144 |
| 16 | NK16/16 | -- | -- | -- | -- | 20.8 | 16 | 24 | 16 | 9030 | 11900 | 15522 |
| NK16/20 | -- | -- | -- | 624701 | 23.9 | 16 | 24 | 20 | 10400 | 16800 | 15522 |
| -- | -- | RNA4901 | -- | 4624901 | 16.6 | 16 | 24 | 13 | 6400 | 8900 | 15522 |
| -- | -- | -- | RNA6901 | 6634901 | 28.7 | 16 | 24 | 22 | 14000 | 18600 | 15522 |
| -- | NKS16 | -- | -- | -- | 30 | 16 | 28 | 16 | 14900 | 15000 | 20000 |
| 17 | NK17/16 | -- | -- | -- | 644903K | 21.5 | 17 | 25 | 16 | 9000 | 13500 | 14163 |
| 18 | NK18/20 | -- | -- | -- | -- | 30.5 | 18 | 26 | 20 | 10500 | 13800 | 13628 |
| 20 | NK20/16 | -- | -- | -- | 644802 | 25.7 | 20 | 28 | 16 | 11500 | 13400 | 12716 |
| NK20/20 | -- | -- | -- | 624802 | 29.3 | 20 | 28 | 20 | 12400 | 21800 | 12716 |
| NK202616 | -- | -- | -- | -- | 20.8 | 20 | 26 | 16 | 9600 | 10800 | 9125 |
| NK202620 | -- | -- | -- | -- | 17.2 | 20 | 26 | 20 | 10500 | 11900 | 9125 |
| -- | NKS20 | -- | -- | -- | 46.8 | 20 | 32 | 20 | 20000 | 22000 | 18000 |
| NK203312SX | -- | -- | -- | -- | 29.1 | 20 | 33 | 12 | 13000 | 17500 | 11124 |
| -- | -- | -- | -- | 6624101 | 24.3 | 20 | 28 | 25 | 11000 | 12900 | 12716 |
| -- | -- | RNA4092 | -- | 4624902 | 20.5 | 20 | 28 | 13 | 10800 | 12800 | 12716 |
| -- | -- | -- | RNA6902 | 6634902 | 35.4 | 20 | 28 | 23 | 13000 | 25000 | 12716 |
| 22 | NK22/16 | -- | -- | -- | NK223016 | 29.2 | 22 | 30 | 16 | 13500 | 18000 | 11527 |
| -- | -- | -- | -- | NK223516 | 34.6 | 22 | 35 | 16 | 18600 | 20800 | 12711 |
| -- | NKS22 | -- | -- | -- | 60.2 | 22 | 35 | 20 | 21500 | 25000 | 17000 |
| -- | -- | RNA4903 | -- | 4644903 | 20.7 | 22 | 30 | 13 | 12000 | 16800 | 16300 |
| -- | -- | -- | RNA4903 | 6634903 | 39.8 | 22 | 30 | 23 | 14000 | 19900 | 16300 |
| -- | -- | -- | -- | 624703 | 53 | 22 | 35 | 25 | 24500 | 28000 | 14187 |
| -- | -- | -- | -- | 634704L | 42.5 | 22 | 30 | 30 | 17700 | 27000 | 16300 |
| -- | -- | -- | -- | 644704 | 27.4 | 22 | 28 | 16 | 10500 | 15050 | 15172 |
| -- | -- | -- | -- | NK223516 | 49.4 | 22 | 35 | 16 | 18600 | 20800 | 16522 |
| 23 | -- | -- | -- | -- | 634704KA | 37.5 | 23 | 30 | 30 | 18600 | 29000 | 15711 |
| 25 | NK25/16 | -- | -- | -- | 624904 | 30 | 25 | 33 | 16 | 12900 | 20400 | 15000 |
| NK25/20 | -- | -- | -- | 644804 | 38.4 | 25 | 33 | 20 | 16800 | 28500 | 15000 |
| -- | -- | RNA4904 | -- | 4644904 | 50.8 | 25 | 37 | 17 | 11912 | 16594 | 14060 |
| -- | -- | -- | RNA6904 | 6634904 | 97.7 | 25 | 37 | 30 | 26000 | 43000 | 14060 |
| -- | NKS25 | -- | -- | -- | 65 | 25 | 38 | 20 | 25800 | 31000 | 16300 |
| -- | -- | -- | -- | 62704 | 100.1 | 25 | 35 | 25 | 14900 | 22400 | 14060 |
| -- | -- | -- | -- | 644804K | 63 | 25 | 33 | 30 | 18800 | 30500 | 14060 |
| 26 | NK26/16 | -- | -- | -- | -- | 30 | 26 | 34 | 16 | 15000 | 23000 | 16300 |
| NK26/20 | -- | -- | -- | -- | 40 | 26 | 34 | 20 | 17000 | 30000 | 16300 |
| 28 | -- | -- | RNA283833 | -- | -- | 99.8 | 28 | 38 | 33 | 33000 | 57000 | 16300 |
| -- | -- | -- | -- | F3833 | 99.8 | 28 | 38 | 33 | 33000 | 57000 | 12000 |
| -- | NKS28 | -- | -- | -- | 80 | 28 | 42 | 20 | 25900 | 33500 | 12000 |
| 30 | NK30/20 | -- | -- | -- | 644805 | 57.9 | 30 | 40 | 20 | 20600 | 32000 | 14600 |
| NK30/30 | -- | -- | -- | -- | 95 | 30 | 40 | 30 | 31500 | 50000 | 12066 |
| -- | -- | RNA4905 | -- | 4624905 | 57 | 30 | 42 | 17 | 13452 | 20475 | 14500 |
| -- | -- | -- | RNA6905 | 6634905 | 106.5 | 30 | 42 | 30 | 26300 | 31750 | 12066 |
| -- | -- | -- | -- | 624905K | 68 | 30 | 42 | 20 | 15400 | 24500 | 12066 |
| 32 | NK32/20 | -- | -- | -- | 624705 | 75.4 | 32 | 42 | 20 | 17500 | 33500 | 12066 |
| -- | -- | RNA49/28 | -- | 46449/32K | 80 | 32 | 45 | 17 | 17400 | 30050 | 12000 |
| -- | NKS32 | -- | -- | -- | 100 | 32 | 47 | 22 | 31000 | 40000 | 12100 |
| -- | -- | -- | RNA69/28 | -- | 125 | 32 | 45 | 30 | 39500 | 61300 | 13100 |
| -- | -- | -- | -- | 644906 | 42 | 32 | 38 | 11 | 10750 | 30500 | 12000 |
| -- | -- | -- | -- | 644706 | 193 | 32 | 50 | 35 | 40500 | 63000 | 12000 |
| 35 | NK35/20 | -- | -- | -- | 644806 | 70 | 35 | 45 | 20 | 13851 | 26900 | 12000 |
| -- | -- | RNA4906 | -- | 4624906 | 62.8 | 35 | 47 | 17 | 17000 | 30500 | 12000 |
| -- | -- | -- | RNA6906 | 6634906 | 116 | 35 | 47 | 30 | 35000 | 67000 | 12000 |
| -- | -- | -- | -- | 644907 | 161 | 35 | 51 | 32 | 43500 | 71000 | 11680 |
| 37 | -- | -- | -- | -- | 624706 | 154 | 37 | 52 | 22 | 28500 | 45500 | 9027 |
| 40 | NK40/20 | -- | -- | -- | -- | 78.9 | 40 | 50 | 20 | 19600 | 43000 | 8881 |
| NK40/30 | -- | -- | -- | -- | 120 | 40 | 50 | 30 | 22200 | 513500 | 8881 |
| -- | -- | -- | RNA69/32 | 66349/32 | 147 | 40 | 52 | 36 | 25500 | 68500 | 8881 |
| 42 | NK42/20 | -- | -- | -- | -- | 83 | 42 | 52 | 20 | 23900 | 45000 | 10000 |
| NK42/30 | -- | -- | -- | -- | 125 | 42 | 52 | 30 | 27000 | 49000 | 10000 |
| -- | -- | RNA4907 | -- | 4624907 | 99.3 | 42 | 55 | 20 | 19800 | 41500 | 8710 |
| -- | -- | -- | RNA6907 | 6634907 | 160 | 42 | 55 | 36 | 26000 | 60500 | 8710 |
| -- | -- | -- | -- | 644708 | 148 | 42 | 65 | 22 | 31500 | 51000 | 8710 |
| 43 | NK43/20 | -- | -- | -- | -- | 84 | 43 | 53 | 20 | 25700 | 49000 | 10000 |
| NK43/30 | -- | -- | -- | -- | 126 | 43 | 53 | 30 | 39000 | 75000 | 10000 |
| 45 | NK45/20 | -- | -- | -- | 644808 | 81.5 | 45 | 55 | 20 | 19800 | 46500 | 7650 |
| -- | -- | -- | -- | 624708 | 75.3 | 45 | 55 | 22 | 20500 | 49600 | 7650 |
| -- | -- | -- | -- | 46449/38 | 80 | 45 | 58 | 20 | 21600 | 50500 | 7650 |
| 48 | -- | -- | RNA4908 | -- | 4644908 | 132 | 48 | 62 | 22 | 31036 | 63873 | 8120 |
| -- | -- | -- | RNA6908 | 6634908 | 238 | 48 | 62 | 40 | 64000 | 112000 | 8120 |
| 50 | NK50/25 | -- | -- | -- | -- | 167 | 50 | 62 | 25 | 28000 | 67000 | 8140 |
| NK50/35 | -- | -- | -- | -- | 236 | 50 | 62 | 35 | 32000 | 70100 | 8140 |
| -- | -- | -- | -- | 624708K | 328 | 50 | 65 | 34 | 40000 | 62000 | 8140 |
| 52 | -- | -- | RNA4909 | -- | 4624909 | 163 | 52 | 68 | 22 | 37000 | 69500 | 7625 |
| -- | -- | -- | RNA6909 | 6634909 | 308 | 52 | 68 | 40 | 61500 | 123500 | 7625 |
| 55 | NK55/25 | -- | -- | -- | -- | 167 | 55 | 68 | 25 | 30600 | 60800 | 7625 |
| -- | -- | -- | -- | 624709 | 210 | 55 | 68 | 25 | 36000 | 68000 | 7625 |
| 58 | -- | -- | RNA4910 | -- | 4644910 | 161 | 58 | 72 | 22 | 41000 | 72000 | 7500 |
| -- | -- | -- | RNA6910 | 6634910 | 296 | 58 | 72 | 40 | 68000 | 135000 | 7500 |
| 60 | NK60/25 | -- | -- | -- | -- | 154 | 60 | 72 | 25 | 39000 | 86000 | 7000 |
| 63 | -- | -- | RNA4911 | -- | 4644911 | 241 | 63 | 80 | 25 | 50600 | 96580 | 6340 |
| -- | -- | -- | RNA6911 | 6634911 | 430 | 63 | 80 | 45 | 82560 | 172000 | 6340 |
| 68 | -- | -- | RNA4912 | -- | 4644912 | 257 | 68 | 85 | 25 | 52800 | 91050 | 6100 |
| -- | -- | -- | RNA6912 | 6634912 | 436 | 68 | 85 | 45 | 88500 | 186000 | 6100 |
| 72 | -- | -- | RNA4913 | -- | 4644913 | 300 | 72 | 90 | 25 | 57500 | 110500 | 6100 |
| -- | -- | -- | RNA6913 | 6634913 | 571 | 72 | 90 | 45 | 87600 | 194500 | 6100 |
| 80 | -- | -- | RNA4914 | -- | 4644914 | 400 | 80 | 100 | 30 | 79000 | 154000 | 5130 |
| -- | -- | -- | RNA6914 | 6634914 | 815 | 80 | 100 | 54 | 121000 | 263000 | 5130 |
| 85 | -- | -- | RNA4915 | -- | 4644915 | 472 | 85 | 105 | 30 | 82000 | 158000 | 5130 |
| -- | -- | -- | RNA6915 | 6634915 | 923 | 85 | 105 | 54 | 128000 | 272000 | 5130 |
| 90 | -- | -- | RNA4916 | -- | 4644916 | 496 | 90 | 110 | 30 | 81000 | 170500 | 4927 |
| -- | -- | -- | RNA6916 | 6634916 | 978 | 90 | 110 | 54 | 130500 | 280600 | 4927 |
| 96 | -- | -- | -- | -- | SG-421 | 496 | 96 | 115 | 29 | 73000 | 137000 | 4600 |
| 100 | -- | -- | RNA4917 | -- | 4644917 | 608 | 100 | 120 | 35 | 98000 | 207000 | 4600 |
| -- | -- | -- | RNA6917 | 6634917 | 1112 | 100 | 120 | 63 | 161000 | 337000 | 4600 |
| 105 | -- | -- | RNA4918 | -- | 4644918 | 713 | 105 | 125 | 35 | 98500 | 239000 | 4000 |
| -- | -- | -- | RNA6918 | 6634918 | 1250 | 105 | 125 | 63 | 174000 | 380000 | 4000 |
| 110 | -- | -- | RNA4919 | -- | 4644919 | 685 | 110 | 130 | 35 | 112000 | 245000 | 3870 |
| -- | -- | -- | RNA6919 | 6634919 | 1325 | 110 | 130 | 63 | 196000 | 400000 | 3870 |
| 115 | -- | -- | RNA4920 | -- | 4624920 | 1006 | 115 | 140 | 40 | 120000 | 264000 | 3710 |
| 125 | -- | -- | RNA4922 | -- | 6634922 | 1200 | 125 | 150 | 40 | 124000 | 270000 | 3350 |
| 130 | -- | -- | RNA4824 | -- | 4644824 | 685 | 130 | 150 | 30 | 91600 | 234000 | 3000 |
| 135 | -- | -- | RNA4924 | -- | 4644924 | 1760 | 135 | 165 | 45 | 174000 | 386000 | 2920 |
| 155 | -- | -- | RNA4828 | -- | 4644824 | 988 | 155 | 175 | 35 | 119000 | 321000 | 2570 |
| 160 | | | RNA4928 | -- | 4644928 | 2350 | 160 | 190 | 50 | 200000 | 460000 | 2900 |
Fuzhou Zoomland Import and Export Trade Co.,Ltd
Our Mission
Our mission is to build solid, reliable products, provide
exceptional service, re-invest in technology and make a dedicated
effort to understand the needs of our customers while providing a
positive workplace for our employees.
Our philosophy is to design, manufacture and sell our products
with all markets in mind. You will never be limited to one
application with our products.
Who We Are
For more than 15+ years, Zoomland has grown into a manufacturer and
exporter of standard and custom bearings, with focus on research
and development of the best products for specific applications. We enjoy working closely with designers and engineers to figure out
how to address out a complex manufacturing issue.Furthermore, we’re value-driven and easy to work with. We’re always
in mind that our solutions must satisfy our customers even may save
their money by reducing manufacturing costs.
How We Can Serve You
We has implemented a total quality control system at our
facilities, and manufactures in high volume to a just-in-time
program.
To serve the ongoing needs of customers, we built high-efficient
sales team to communicate with our customers so that our customers
will get full information about our products within 24 hours.
We’re proud of our long-term relationships with our customers.
