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Address: RM.1606, Bldg. 2, 863 Creative Park, No. 32, Changxiamen Street, Luolong Dist., Luoyang, Henan, China 471000
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Needle bearing (needle bearing) is a cylindrical roller bearing, relative to its diameter, the roller is both thin and long this roller called needle although has a smaller section, bearing still has a higher load bearing capacity.
Needle bearing (needle bearing) is a cylindrical roller bearing, relative to its diameter, the roller is both thin and long this roller called needle although has a smaller section, bearing still has a higher load bearing capacity, needle bearing is equipped with thin and long roller (roller diameter D 5mm,L/D 2.
5,L is the length of roller), so the radial structure is compact, and its inner diameter size and load capacity are the same as other types of bearings, while the outer diameter is the smallest, especially suitable for the radial installation size of the support structure is limited .
Metric and inch needle bearings have various structural types, mainly including open stamping needle roller bearings, closed stamping needle roller bearings, needle roller bearings with inner ring and needle roller bearings without inner ring/without inner ring Cage needle roller bearings, caged and cageless needle roller bearings. Widely used in automobiles, motorcycles, mopeds, power tools, textiles, agricultural machinery, printing machinery, construction machinery, automatic instruments and other fields.
| Shaft Diameter | Bearing No. | Boundary Dimensions | Basic Load Ratings | Limiting Speed | |||||
| RNA 49..RS | RNA 49..2RS | Fw | D | C | r(s) | C | Co | Oil | |
| mm | single sealed | double sealed | mm | min. | N | rpm | |||
| 14 | RNA 4900 RS | RNA 4900.2RS | 14 | 22 | 13 | 0.3 | 6800 | 6900 | 13000 |
| 16 | RNA 4901 RS | RNA 4901.2RS | 16 | 24 | 13 | 0.3 | 7600 | 8300 | 12000 |
| 20 | RNA 4902 RS | RNA 4902.2RS | 20 | 28 | 13 | 0.3 | 8600 | 10300 | 10000 |
| 22 | RNA 4903 RS | RNA 4903.2RS | 22 | 30 | 13 | 0.3 | 8800 | 11000 | 9000 |
| 25 | RNA 4904 RS | RNA 4904.2RS | 25 | 37 | 17 | 0.3 | 17300 | 19900 | 7500 |
| 30 | RNA 4905 RS | RNA 4905.2RS | 30 | 42 | 17 | 0.3 | 19300 | 24200 | 6500 |
| 35 | RNA 4906 RS | RNA 4906.2RS | 35 | 47 | 17 | 0.3 | 21100 | 28500 | 5500 |
| 42 | RNA 4907 RS | RNA 4907.2RS | 42 | 55 | 20 | 0.6 | 26500 | 39500 | 4800 |
| 48 | RNA 4908 RS | RNA 4908.2RS | 48 | 62 | 22 | 0.6 | 36000 | 53000 | 4200 |
| 52 | RNA 4909 RS | RNA 4909.2RS | 52 | 68 | 22 | 0.6 | 38000 | 59000 | 3900 |
| 58 | RNA 4910 RS | RNA 4910.2RS | 58 | 72 | 22 | 0.6 | 40000 | 64000 | 3500 |
Needle bearing (needle bearing) is a cylindrical roller bearing, relative to its diameter, the roller is both thin and long this roller called needle although has a smaller section, bearing still has a higher load bearing capacity.
learn moreNeedle bearing (needle bearing) is a cylindrical roller bearing, relative to its diameter, the roller is both thin and long this roller called needle although has a smaller section, bearing still has a higher load bearing capacity.
learn moreNeedle bearing (needle bearing) is a cylindrical r
