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.
| Dimensions (mm) | Rated load (KN) | Rated load {kgf} | Coef. | Rated speed (min)-1 Grease lubrication | Rated speed (min)-1 Oil lubrication | Bearing Designation | Dimensions of the Retaining Ring Groove(1) (mm) | Stop Ring Dimensions (mm) | Stop Ring Dimensions(1) (mm) | Install Dimensions (mm) | Weight (kg) | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| d | D | B | γ(Minimum) | Cr | Cor | Cr | Cor | f0 | Open-type Z·ZZ-type V· VV Type | Open-type DU Type DDU Type | Open-type Z-type | Open-type | Dust cover | Contactless Seal type | Contact seal type | With automatic ring groove | with a retaining 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) |
| 25 | 47 | 12 | 0.6 | 10.6 | 5.85 | 1080 | 595 | 14.5 | 18000 | 9500 | 22000 | *6005& | ZZ | VV | DDU | N | NR | 2.06 | 1.35 | 44.6 | 0.4 | 0.5 | 52.7 | 1.12 | 29 | 30 | 43 | 0.6 | 53.5 | 2.9 | 0.079 |
| 25 | 47 | 8 | 0.3 | 8.85 | 5.6 | 905 | 570 | 15.1 | 15000 | — | 18000 | 16005 | — | — | — | — | — | — | — | — | — | — | — | — | 27 | — | 45 | 0.3 | — | — | 0.059 |
| 25 | 42 | 9 | 0.3 | 7.05 | 4.55 | 715 | 460 | 15.4 | 16000 | 10000 | 19000 | 6905 | ZZ | VV | DDU | N | NR | 1.7 | 0.95 | 40.7 | 0.25 | 0.3 | 44.8 | 0.85 | 27 | 28.5 | 40 | 0.3 | 45.5 | 2.3 | 0.042 |
| 25 | 37 | 7 | 0.3 | 4.5 | 3.15 | 455 | 320 | 16.1 | 18000 | 10000 | 22000 | 6805 | ZZ | VV | DD | N | NR | 1.3 | 0.95 | 35.7 | 0.25 | 0.3 | 39.8 | 0.85 | 27 | 27 | 35 | 0.3 | 40.5 | 1.8 | 0.021 |
| 22 | 56 | 16 | 1.1 | 18.4 | 9.25 | 1870 | 940 | 12.4 | 13000 | 9500 | 16000 | 63/22 | ZZ | VV | DDU | N | NR | 2.46 | 1.35 | 53.6 | 0.4 | 0.5 | 61.7 | 1.12 | 28.5 | 30.5 | 49.5 | 1 | 62.5 | 3.3 | 0.179 |
| 22 | 50 | 14 | 1 | 12.9 | 6.80 | 1320 | 695 | 13.5 | 14000 | 9500 | 16000 | 62/22 | ZZ | VV | DDU | N | NR | 2.46 | 1.35 | 47.6 | 0.4 | 0.5 | 55.7 | 1.12 | 27 | 29.5 | 45 | 1 | 56.5 | 3.3 | 0.119 |
| 22 | 44 | 12 | 0.6 | 9.4 | 5.05 | 960 | 515 | 14.0 | 17000 | 11000 | 20000 | 60/22 | ZZ | VV | DDU | N | NR | 2.06 | 1.35 | 41.75 | 0.4 | 0.5 | 48.3 | 1.12 | 26 | 26.5 | 40 | 0.6 | 49 | 2.9 | 0.074 |
| 20 | 52 | 15 | 1.1 | 16.7 | 7.90 | 1710 | 805 | 12.4 | 16000 | 10000 | 19000 | *6304& | ZZ | VV | DDU | N | NR | 2.46 | 1.35 | 49.73 | 0.4 | 0.5 | 57.9 | 1.12 | 26.5 | 28 | 45.5 | 1 | 58.5 | 3.3 | 0.145 |
| 20 | 47 | 14 | 1 | 13.4 | 6.60 | 1370 | 670 | 13.1 | 17000 | 11000 | 20000 | *6204& | ZZ | VV | DDU | N | NR | 2.46 | 1.35 | 44.6 | 0.4 | 0.5 | 52.7 | 1.12 | 25 | 26.5 | 42 | 1 | 53.5 | 3.3 | 0.107 |
| 20 | 42 | 12 | 0.6 | 9.85 | 5.00 | 1000 | 510 | 13.8 | 20000 | 11000 | 24000 | *6004& | ZZ | VV | DDU | N | NR | 2.06 | 1.35 | 39.75 | 0.4 | 0.5 | 46.3 | 1.12 | 24 | 25.5 | 38 | 0.6 | 47 | 2.9 | 0.068 |
| 20 | 42 | 8 | 0.3 | 7.9 | 4.45 | 810 | 455 | 14.5 | 18000 | — | 20000 | 16004 | — | — | — | — | — | — | — | — | — | — | — | — | 22 | — | 40 | 0.3 | — | — | 0.048 |
| 20 | 37 | 9 | 0.3 | 6.4 | 3.70 | 650 | 375 | 14.7 | 19000 | 12000 | 22000 | 6904 | ZZ | VV | DDU | N | NR | 1.7 | 0.95 | 35.7 | 0.25 | 0.3 | 39.8 | 0.85 | 22 | 24 | 35 | 0.3 | 40.5 | 2.3 | 0.037 |
| 20 | 32 | 7 | 0.3 | 4 | 2.47 | 410 | 252 | 15.5 | 22000 | 13000 | 26000 | 6804 | ZZ | VV | DD | N | NR | 1.3 | 0.95 | 30.7 | 0.25 | 0.3 | 34.8 | 0.85 | 22 | 22 | 30 | 0.3 | 35.5 | 1.8 | 0.017 |
| 17 | 47 | 14 | 1 | 14.3 | 6.65 | 1460 | 675 | 12.4 | 18000 | 11000 | 20000 | *6303& | ZZ | VV | DDU | N | NR | 2.46 | 1.35 | 44.6 | 0.4 | 0.5 | 52.7 | 1.12 | 22 | 25.5 | 42 | 1 | 53.5 | 3.3 | 0.113 |
| 17 | 40 | 12 | 0.6 | 10.1 | 4.80 | 1020 | 490 | 13.2 | 20000 | 12000 | 24000 | *6203& | ZZ | VV | DDU | N | NR | 2.06 | 1.35 | 38.1 | 0.4 | 0.5 | 44.6 | 1.12 | 21 | 23.5 | 36 | 0.6 | 45.5 | 2.9 | 0.067 |
| 17 | 35 | 10 | 0.3 | 6.3 | 3.25 | 645 | 330 | 14.4 | 24000 | 13000 | 28000 | *6003& | ZZ | VV | DDU | N | NR | 2.06 | 1.35 | 33.17 | 0.4 | 0.3 | 39.7 | 1.12 | 19 | 21.5 | 33 | 0.3 | 40.5 | 2.9 | 0.041 |
| 17 | 35 | 8 | 0.3 | 6 | 3.25 | 610 | 330 | 14.4 | 22000 | — | 26000 | 16003 | — | — | — | — | — | — | — | — | — | — | — | — | 19 | — | 33 | 0.3 | — | — | 0.033 |
| 17 | 30 | 7 | 0.3 | 4.6 | 2.55 | 470 | 260 | 14.7 | 24000 | 15000 | 28000 | 6903 | ZZ | VV | DDU | N | NR | 1.3 | 0.95 | 28.7 | 0.25 | 0.3 | 32.8 | 0.85 | 19 | 19.5 | 28 | 0.3 | 33.5 | 1.8 | 0.017 |
| 17 | 26 | 5 | 0.3 | 2.63 | 1.57 | 268 | 160 | 15.7 | 26000 | 15000 | 30000 | 6803 | ZZ | VV | DD | — | — | — | — | — | — | — | — | — | 19 | 19 | 24 | 0.3 | — | — | 0.007 |
| 15 | 42 | 13 | 1 | 12 | 5.45 | 1220 | 555 | 12.3 | 20000 | 13000 | 24000 | *6302& | ZZ | VV | DDU | N | NR | 2.06 | 1.35 | 39.75 | 0.4 | 0.5 | 46.3 | 1.12 | 20 | 22.5 | 37 | 1 | 47 | 2.9 | 0.083 |
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