NA22/8-2RS Needle Roller Bearing is a compact, high-load-capacity radial bearing featuring precision needle rollers, an inner ring, and double rubber seals. The 2RS sealing system provides effective protection against dust and contaminants while helping retain lubricant, making the bearing suitable for demanding industrial and automotive applications where space is limited.
| Bearing Number | NA22/8-2RS |
|---|---|
| Inner Diameter | 8 mm |
| Outer Diameter | 24 mm |
| Thickness | 12 mm |
| Weight | 0.04 KG |
| Stock | 2363 PCS |
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Gear pumps, sheaves, automotive transmissions, two-cycle engines, automotive gearboxes, and other industrial applications requiring compact radial space solutions.
NA bearings typically withstand radial loads only, not axial loads. When axial loads are present, they should be used in combination with other bearings. The shaft journal surface fitted with NA bearings acts directly as the rolling surface, requiring surface hardness ≥ HRC60 and surface roughness ≤ 0.63μm.
| Bearing Model | Fw (mm) | D (mm) | C (mm) | fmin (mm) | Dyn.C (N) | Stat.Co (N) | Oil (rpm) | Weight (Kg) |
|---|---|---|---|---|---|---|---|---|
| RNA4822 | 110 | 140 | 30 | 1 | 74.8 | 168 | 2640 | 0.670 |
| RNA4824 | 120 | 150 | 30 | 1 | 79.6 | 186.4 | 2480 | 0.730 |
| RNA4826 | 130 | 170 | 35 | 1.1 | 94.4 | 244 | 2240 | 0.950 |
| RNA4828 | 140 | 175 | 35 | 1.1 | 96.8 | 252 | 2080 | 1.020 |
| RNA4830 | 150 | 190 | 40 | 1.1 | 121.6 | 312 | 1920 | 1.600 |
| RNA4832 | 160 | 200 | 40 | 1.10 | 128 | 340 | 1840 | 1.700 |
| RNA4834 | 170 | 215 | 451 | 1.1 | 148 | 396 | 1760 | 2.540 |
| RNA4836 | 180 | 225 | 451 | 1.1 | 156 | 432 | 1680 | 2.680 |
| RNA4838 | 190 | 240 | 50 | 1.5 | 181.6 | 544 | 1520 | 3.210 |
| RNA4840 | 200 | 250 | 50 | 1.5 | 184.8 | 564 | 1440 | 3.350 |
For purchasing NA22/8-2RS needle roller bearings or other NA series products, contact our professional bearing supplier team:
Email: sales@transmission-chain.com
WhatsApp: 008615006175975