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) |
| 160 | 340 | 68 | 4 | 278 | 287 | 28300 | 29200 | 13.9 | 1700 | — | 2000 | 6332 | ZZS | — | — | — | — | — | — | — | — | — | — | — | 176 | 215.5 | 324 | 3 | — | — | 26.2 |
| 160 | 290 | 48 | 3 | 185 | 186 | 18900 | 19000 | 15.4 | 1900 | — | 2400 | 6232 | ZZS | — | — | — | — | — | — | — | — | — | — | — | 173 | 202 | 277 | 2.5 | — | — | 12.8 |
| 160 | 240 | 38 | 2.1 | 137 | 135 | 13900 | 13800 | 15.9 | 2400 | 1600 | 2800 | 6032 | ZZ | — | DDU | — | — | — | — | — | — | — | — | — | 171 | 181.5 | 229 | 2 | — | — | 5.15 |
| 160 | 240 | 25 | 1.5 | 99 | 108 | 10100 | 11000 | 16.5 | 2400 | — | 2800 | 16032 | — | — | — | — | — | — | — | — | — | — | — | 168 | — | 232 | 1.5 | — | — | 4.2 | |
| 160 | 220 | 28 | 2 | 87 | 96 | 8850 | 9800 | 16.6 | 2600 | 1600 | 3000 | 6932 | ZZS | — | DDU | — | — | — | — | — | — | — | — | — | 169 | 176 | 211 | 2 | — | — | 2.71 |
| 160 | 200 | 20 | 1.1 | 48.5 | 61 | 4950 | 6250 | 17.2 | 2600 | 1700 | 3200 | 6832 | ZZS | VV | DDU | N | NR | 3.3 | 1.9 | 196.8 | 0.6 | 0.5 | 206.5 | 1.7 | 166.5 | 170.5 | 193.5 | 1 | 208 | 4.7 | 1.23 |
| 150 | 320 | 65 | 4 | 274 | 284 | 28000 | 28900 | 13.9 | 1800 | — | 2200 | 6330 | ZZS | — | — | — | — | — | — | — | — | — | — | — | 166 | 203 | 304 | 3 | — | — | 22.7 |
| 150 | 270 | 45 | 3 | 176 | 168 | 18000 | 17100 | 15.1 | 2000 | — | 2600 | 6230 | ZZS | — | — | — | — | — | — | — | — | — | — | — | 163 | 186 | 257 | 2.5 | — | — | 10 |
| 150 | 225 | 35 | 2.1 | 126 | 126 | 12800 | 12800 | 15.9 | 2600 | 1700 | 3000 | 6030 | ZZ | VV | DDU | — | — | — | — | — | — | — | — | — | 161 | 170 | 214 | 2 | — | — | 4.24 |
| 150 | 225 | 24 | 1.1 | 84 | 91 | 8550 | 16.6 | 2600 | — | 3000 | 16030 | — | — | — | — | — | — | — | — | — | — | — | — | 156.5 | — | 218.5 | 1 | — | — | 3.62 | |
| 150 | 210 | 28 | 2 | 85 | 90.5 | 8650 | 9200 | 16.5 | 2600 | 1700 | 3200 | 6930 | ZZS | — | DDU | — | — | — | — | — | — | — | — | — | 159 | 166 | 201 | 2 | — | — | 3.01 |
| 150 | 190 | 20 | 1.1 | 47.5 | 58.5 | 4850 | 5950 | 17.1 | 3200 | 1800 | 3800 | 6830 | ZZ | VV | DDU | N | NR | 3.3 | 1.9 | 186.8 | 0.6 | 0.5 | 196.5 | 1.7 | 156.5 | 160 | 183.5 | 1 | 198 | 4.7 | 1.15 |
| 140 | 300 | 62 | 4 | 253 | 246 | 25800 | 25100 | 13.6 | 2000 | — | 2400 | 6328 | ZZS | — | — | — | — | — | — | — | — | — | — | — | 156 | 187 | 284 | 3 | — | — | 18.5 |
| 140 | 250 | 42 | 3 | 166 | 150 | 17000 | 15300 | 14.9 | 2200 | 1700 | 2800 | 6228 | ZZS | — | DDU | — | — | — | — | — | — | — | — | — | 153 | 171.5 | 237 | 2.5 | — | — | 7.68 |
| 140 | 210 | 33 | 2 | 110 | 109 | 11200 | 11100 | 16.0 | 2800 | 1800 | 3400 | 6028 | ZZ | — | DDU | — | — | — | — | — | — | — | — | — | 149 | 158.5 | 201 | 2 | — | — | 3.48 |
| 140 | 210 | 22 | 1.1 | 77.5 | 82.5 | 7900 | 8400 | 16.5 | 2800 | — | 3400 | 16028 | — | — | — | — | — | — | — | — | — | — | — | — | 146.5 | — | 203.5 | 1 | — | — | 2.84 |
| 140 | 190 | 24 | 1.5 | 66.5 | 72 | 6800 | 7300 | 16.6 | 3200 | — | 3800 | 6928 | ZZS | VV | — | N | NR | 3.7 | 1.9 | 186.8 | 0.6 | 0.5 | 196.5 | 1.7 | 148 | 153.5 | 182 | 1.5 | 198 | 5.1 | 1.67 |
| 140 | 175 | 18 | 1.1 | 38.5 | 48 | 3900 | 4850 | 17.3 | 3400 | 1900 | 4000 | 6828 | ZZ | VV | DDU | N | NR | 3.3 | 1.9 | 171.8 | 0.6 | 0.5 | 181.5 | 1.7 | 146.5 | 148.5 | 168.5 | 1 | 183 | 4.7 | 0.832 |
| 130 | 280 | 58 | 4 | 229 | 214 | 23400 | 21800 | 13.6 | 2200 | — | 2600 | 6326 | ZZS | — | — | — | — | — | — | — | — | — | — | — | 146 | 175 | 264 | 3 | — | — | 15.2 |
| 130 | 230 | 40 | 3 | 167 | 146 | 17000 | 14900 | 14.5 | 2400 | — | 3000 | 6226 | ZZ | — | — | — | — | — | — | — | — | — | — | — | 143 | 157 | 217 | 2.5 | — | — | 5.96 |
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