Single-row deep groove ball bearings (inner diameter 10–160 mm) cater to a wide range of applications, from micro-motors to medium-sized industrial gearboxes, and represent the core of the brand’s precision manufacturing technology. This series utilises high-purity bearing steel and NSK’s Japanese grinding processes to ensure P5/P6 precision whilst minimising friction torque, making it particularly suitable for high-speed operation. The optimised deep-groove raceway design enables the bearings to withstand both radial and bidirectional axial loads. Combined with low-noise cages and high-quality grease, operating noise is significantly lower than industry standards. From small shaft diameters of 10 mm to heavy-duty spindles of 160 mm, every bearing undergoes 100% vibration and clearance testing to ensure smooth, quiet and long-lasting operation in CNC machine tools, industrial fans, agricultural machinery and automated equipment.
| Overall dimensions (mm) | Rated load (KN) | Rated load {kgf} | Coefficient | Rated speed min-1 Grease lubrication | Rated speed min-1 Oil lubrication | Bearing code | Stop ring groove size (1) (mm) | Stop ring size (mm) | Stop ring size(1) (mm) | Installation dimensions (mm) | Weight (kg) | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| d | D | B | γ(minimum) | Cr | Cor | Cr | Cor | f0 | Open Z·ZZ type V·VV type | Open DU type DDU type | Open Z type | Open | Dust cover | Non-contact Sealing ring type | Contact Sealing Ring Type | Equipped with automatic ring groove | With stopper ring | a (maximum) | b (minimum) | D1 (maximum) | γo (maximum) | γN (minimum) | D2 (maximum) | f | Da (minimum） | da (maximum） | Da (maximum) | γa (maximum) | Dx (minimum) | CY (maximum) | (Reference) |
| 105 | 145 | 20 | 1.1 | 42.5 | 42 | 4300 | 4300 | 16.5 | 4300 | — | 5300 | 6921 | ZZ | VV | — | N | NR | 3.3 | 1.9 | 142.6 | 0.6 | 0.5 | 150.7 | 1.7 | 111.5 | 116 | 138.5 | 1 | 152 | 4.7 | 0.856 |
| 105 | 130 | 13 | 1 | 19.8 | 23.9 | 2020 | 2440 | 17.4 | 4800 | 2600 | 5600 | 6821 | ZZ | VV | DDU | N | NR | 2.1 | 1.3 | 127.6 | 0.4 | 0.5 | 135.7 | 1.12 | 110 | 110.5 | 125 | 1 | 137 | 2.9 | 0.324 |
| 100 | 215 | 47 | 3 | 173 | 141 | 17700 | 14400 | 13.2 | 2800 | 2200 | 3400 | 6320 | ZZ | VV | DDU | N | NR | — | — | — | — | — | — | — | 113 | 133 | 202 | 2.5 | — | — | 7.04 |
| 100 | 180 | 34 | 2.1 | 128 | 93 | 13100 | 9500 | 14.4 | 4000 | 2400 | 4800 | *6220& | ZZ | VV | DDU | N | NR | 5.69 | 3.5 | 173.66 | 0.6 | 0.5 | 192.9 | 3.1 | 111 | 121.5 | 169 | 2 | 195 | 8.4 | 3.17 |
| 100 | 150 | 24 | 1.5 | 63 | 54 | 6450 | 5550 | 15.9 | 5000 | 2600 | 6000 | *6020& | ZZ | VV | DDU | N | NR | 3.71 | 3.1 | 145.24 | 0.6 | 0.5 | 159.7 | 2.82 | 108 | 112.5 | 142 | 1.5 | 162 | 6.1 | 1.29 |
| 100 | 150 | 16 | 1 | 42.5 | 42 | 4300 | 4300 | 16.5 | 4300 | — | 5300 | 16020 | — | — | — | — | — | — | — | — | — | — | — | — | 105 | — | 145 | 1 | — | — | 0.945 |
| 100 | 140 | 20 | 1.1 | 43 | 42 | 4350 | 4250 | 16.4 | 4500 | 2600 | 5300 | 6920 | ZZ | VV | DDU | N | NR | 3.3 | 1.9 | 137.6 | 0.6 | 0.5 | 145.7 | 1.7 | 106.5 | 111 | 133.5 | 1 | 147 | 4.7 | 0.828 |
| 100 | 125 | 13 | 1 | 19.6 | 23 | 2000 | 2340 | 17.3 | 4800 | 2800 | 5600 | 6820 | ZZ | VV | DD | N | NR | 2.1 | 1.3 | 122.6 | 0.4 | 0.5 | 130.7 | 1.12 | 105 | 105.5 | 120 | 1 | 132 | 2.9 | 0.31 |
| 95 | 200 | 45 | 3 | 160 | 119 | 16400 | 12100 | 13.3 | 3400 | 2400 | 4300 | *6319& | ZZ | VV | DDU | N | NR | 5.69 | 3.5 | 193.65 | 0.6 | 0.5 | 212.9 | 3.1 | 108 | 123.5 | 187 | 2.5 | 215 | 8.4 | 5.76 |
| 95 | 170 | 32 | 2.1 | 114 | 82 | 11600 | 8350 | 14.4 | 4300 | 2600 | 5000 | *6219& | ZZ | VV | DDU | N | NR | 5.69 | 3.5 | 163.65 | 0.6 | 0.5 | 182.9 | 3.1 | 106 | 114 | 159 | 2 | 185 | 8.4 | 2.64 |
| 95 | 145 | 24 | 1.5 | 63.5 | 54 | 6450 | 5500 | 15.8 | 5000 | 2600 | 6000 | *6019& | ZZ | VV | DDU | N | NR | 3.71 | 3.1 | 140.23 | 0.6 | 0.5 | 154.7 | 2.82 | 103 | 108.5 | 137 | 1.5 | 157 | 6.1 | 1.23 |
| 95 | 145 | 16 | 1 | 43 | 42 | 4350 | 4250 | 16.4 | 4500 | — | 5300 | 16019 | — | — | — | — | — | — | — | — | — | — | — | — | 100 | — | 140 | 1 | — | — | 0.904 |
| 95 | 130 | 18 | 1.1 | 33.5 | 33.5 | 3450 | 3400 | 16.6 | 4800 | 2800 | 5600 | 6919 | ZZ | VV | DDU | N | NR | 3.3 | 1.3 | 127.6 | 0.4 | 0.5 | 135.7 | 1.12 | 101.5 | 103.5 | 123.5 | 1 | 137 | 4.1 | 0.601 |
| 95 | 120 | 13 | 1 | 19.3 | 22 | 1970 | 2240 | 17.2 | 5000 | 2800 | 6000 | 6819 | ZZ | VV | DD | N | NR | 2.1 | 1.3 | 117.6 | 0.4 | 0.5 | 125.7 | 1.12 | 100 | 101.5 | 115 | 1 | 127 | 2.9 | 0.297 |
| 90 | 190 | 43 | 3 | 150 | 107 | 15300 | 11000 | 13.3 | 4000 | 2400 | 4800 | *6318& | ZZ | VV | DDU | N | NR | 5.69 | 3.5 | 183.64 | 0.6 | 0.5 | 202.9 | 3.1 | 103 | 117 | 177 | 2.5 | 205 | 8.4 | 4.98 |
| 90 | 160 | 30 | 2 | 101 | 71.5 | 10300 | 7300 | 14.5 | 4500 | 2600 | 5600 | *6218& | ZZ | VV | DDU | N | NR | 4.9 | 3.1 | 155.22 | 0.6 | 0.5 | 169.7 | 2.82 | 99 | 107.5 | 151 | 2 | 172 | 7.3 | 2.18 |
| 90 | 140 | 24 | 1.5 | 61 | 50 | 6250 | 5050 | 15.6 | 5300 | 2800 | 6300 | *6018& | ZZ | VV | DDU | N | NR | 3.71 | 3.1 | 135.23 | 0.6 | 0.5 | 149.7 | 2.82 | 98 | 103 | 132 | 1.5 | 152 | 6.1 | 1.19 |
| 90 | 140 | 16 | 1 | 41.5 | 39.5 | 4250 | 4000 | 16.3 | 4800 | — | 5600 | 16018 | — | — | — | — | — | — | — | — | — | — | — | — | 95 | — | 135 | 1 | — | — | 0.873 |
| 90 | 125 | 18 | 1.1 | 33 | 31.5 | 3350 | 3200 | 16.5 | 5000 | 2800 | 6000 | 6918 | ZZ | VV | DDU | N | NR | 3.3 | 1.3 | 122.6 | 0.4 | 0.5 | 130.7 | 1.12 | 96.5 | 98.5 | 118.5 | 1 | 132 | 4.1 | 0.585 |
| 90 | 115 | 13 | 1 | 19 | 21 | 1940 | 2140 | 17.2 | 5300 | 3000 | 6300 | 6818 | ZZ | VV | DDU | N | NR | 2.1 | 1.3 | 112.6 | 0.4 | 0.5 | 120.7 | 1.12 | 95 | 95.5 | 110 | 1 | 122 | 2.9 | 0.276 |
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