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#CODE
- Discontinued Products
Roller Bearing - Sealed, Caged, NAU Series
- Volume Discount
IKO Machined Type Needle Roller Bearings have an outer ring made by machining, heat treatment, and grinding. The outer ring has stable high rigidity and can be easily used even for light alloy housings.
These bearings are available in metric series and inch series, both of which have the caged type and the full complement type. It is therefore possible to select a suitable bearing for use under various conditions such as heavy loads and high-speed or low-speed rotations. In addition, there are bearings with and without an inner ring. As the type without inner ring uses a shaft as the raceway surface, a compact design is possible.
Part Number
Configured Part Number is shown.
NAU4908UU
| Shaft dia. mm | Identification number | Mass (Ref.) g | Boundary dimensions mm | Ew | Basic dynamic load rating C N | Basic static load rating C0 N | Allowable rotational speed rpm | ||||
| Caged type | d | D | C | rs min | J | ||||||
| 10 | - | 25.5 | 10 | 22 | 13 | 0.30 | 15.5 | 19.5 | 9 650 | 10 800 | 10 000 |
| 12 | - | 28.5 | 12 | 24 | 13 | 0.30 | 17.0 | 21.0 | 10 300 | 12 000 | 9 000 |
| 15 | - - | 38 80.5 | 15 15 | 28 33 | 13 20 | 0.3 0.3 | 21 19.5 | 25 27 | 11 800 10 400 | 15 200 10 400 | 7 000 9 500 |
| 17 | - - | 41 100 | 17 17 | 30 34 | 13 25 | 0.3 0.3 | 22.5 21.5 | 26.5 29.5 | 12 300 18 000 | 16 500 21 600 | 6 500 8 500 |
| 20 | - NAU 4904UU - - | 76.5 76 96.5 122 | 20 20 20 20 | 37 37 38 38 | 17 17 20 25 | 0.3 0.3 0.3 0.3 | 24 24 25 25 | 31.5 31.5 32.5 32.5 | 15 600 10 700 12 100 18 700 | 18 900 11 300 13 400 23 600 | 5 500 8 000 7 500 7 500 |
| 25 | - NAU 4905UU - | 89.5 89 154 | 25 25 25 | 42 42 44 | 17 17 25 | 0.3 0.3 0.3 | 29.5 29.5 30.5 | 37 37 38 | 17 500 11 900 21 000 | 23 200 13 900 28 900 | 4 500 6 500 6 000 |
| 28 | - | 173.0 | 28 | 45 | 30 | 0.30 | 31.5 | 39.5 | 28 700 | 43 800 | 6 000 |
| 30 | - NAU 4906UU - | 103 102 197 | 30 30 30 | 47 47 48 | 17 17 30 | 0.3 0.3 0.3 | 34 34 35 | 41.5 41.5 42.5 | 19 400 13 000 29 400 | 27 600 16 200 46 600 | 4 000 5 500 5 500 |
| 32 | - | 260.0 | 32 | 52 | 30 | 0.60 | 38.0 | 46.0 | 29 800 | 44 200 | 5 000 |
| 35 | - NAU 4907UU - | 172 168 270 | 35 35 35 | 55 55 56 | 20 20 30 | 0.6 0.6 0.6 | 40 40 40 | 49 49 49 | 28 700 19 500 32 200 | 43 800 26 300 49 800 | 3 500 4 500 4 500 |
| 40 | - - NAU 4908UU | 225 265 220 | 40 40 40 | 62 59 62 | 22 30 22 | 0.6 0.6 0.6 | 46 45 46 | 56 52.5 56 | 34 600 34 700 23 400 | 49 500 62 500 29 400 | 3 000 4 000 4 000 |
| 42 | - | 290.0 | 42 | 62 | 30 | 0.60 | 48.0 | 56.5 | 34 600 | 57 800 | 4 000 |
| 45 | - - NAU 4909UU | 265 295 260 | 45 45 45 | 68 64 68 | 22 30 22 | 0.6 0.6 0.6 | 51 50.5 51 | 61 58.5 61 | 36 400 32 600 24 800 | 54 700 59 700 32 800 | 2 500 3 500 3 500 |
| 50 | - NAU 4910UU - | 270 265 710 | 50 50 50 | 72 72 77 | 22 22 45 | 0.6 0.6 1 | 55.5 55.5 58 | 65.5 65.5 69 | 38 200 26 200 75 700 | 59 900 36 200 134 000 | 2 500 3 500 3 500 |
| 55 | - NAU 4911UU - | 395 385 615 | 55 55 55 | 80 80 81 | 25 25 38 | 1 1 1 | 61.5 61.5 61.5 | 72.5 72.5 72.5 | 48 100 33 000 61 400 | 77 700 47 000 104 000 | 2 000 3 000 3 000 |
| 60 | - NAU 4912UU - | 425 415 880 | 60 60 60 | 85 85 89 | 25 25 45 | 1 1 1 | 67 67 69.5 | 77.5 77.5 81.5 | 50 300 34 700 88 100 | 84 300 51 400 152 000 | 2 000 3 000 3 000 |
| 65 | - NAU 4913UU | 455 440 | 65 65 | 90 90 | 25 25 | 1 1 | 72 72 | 83 83 | 53 200 36 900 | 93 000 57 100 | 1 900 2 500 |
| 70 | - NAU 4914UU | 725 705 | 70 70 | 100 100 | 30 30 | 1 1 | 79 79 | 91.5 91.5 | 77 700 53 700 | 139 000 84 600 | 1 800 2 500 |
| 75 | - NAU 4915UU - | 775 750 1 240 | 75 75 75 | 105 105 108 | 30 30 45 | 1 1 1 | 83.5 83.5 85.5 | 95.5 95.5 98.5 | 80 000 54 800 103 000 | 146 000 88 200 190 000 | 1 700 2 500 2 000 |
| 80 | - NAU 4916UU | 815 790 | 80 80 | 110 110 | 30 30 | 1 1 | 89.5 89.5 | 102 102 | 83 000 57 200 | 157 000 95 500 | 1 600 2 000 |
| 85 | - - NAU 4917UU - | 1 190 1 530 1 150 1 500 | 85 85 85 85 | 120 118 120 120 | 35 50 35 45 | 1.5 1 1.5 1.5 | 96 94.5 96 96.5 | 110 107.5 110 110 | 111 000 114 000 75 400 110 000 | 200 000 222 000 120 000 215 000 | 1 500 2 000 2 000 2 000 |
| 90 | - NAU 4918UU - | 1 250 1 210 1 740 | 90 90 90 | 125 125 125 | 35 35 50 | 1.5 1.5 1.5 | 101 101 101 | 115.5 115.5 114 | 114 000 79 500 119 000 | 211 000 130 000 240 000 | 1 400 1 900 1 900 |
| 95 | - NAU 4919UU | 1 300 1 270 | 95 95 | 130 130 | 35 35 | 1.5 1.5 | 106 106 | 120.5 120.5 | 117 000 81 000 | 222 000 136 000 | 1 300 1 800 |
| 100 | - - NAU 4920UU | 1 850 1 900 1 770 | 100 100 100 | 140 135 140 | 40 50 40 | 1.5 1.5 1.5 | 114.5 112 114.5 | 129.5 125.5 129.5 | 152 000 124 000 106 000 | 292 000 264 000 181 000 | 1 200 1 700 1 700 |
| 105 | - | 2 890 | 105 | 153 | 50 | 1.50 | 120.0 | 138.0 | 159 000 | 286 000 | 1 600 |
| 110 | - NAU 4922UU | 2 010 1 930 | 110 110 | 150 150 | 40 40 | 1.5 1.5 | 123 123 | 138.5 138.5 | 161 000 113 000 | 322 000 200 000 | 1 100 1 600 |
| 120 | - NAU 4924UU | 2 780 2 680 | 120 120 | 165 165 | 45 45 | 1.5 1.5 | 136 136 | 153.5 153.5 | 208 000 146 000 | 431 000 268 000 | 1 000 1 400 |
| 125 | - | 4 490 | 125 | 178 | 60 | 1.50 | 143.5 | 162.0 | 211 000 | 408 000 | 1 400 |
| 130 | - NAU 4926UU | 3 750 3 610 | 130 130 | 180 180 | 50 50 | 2 2 | 147 147 | 165.5 165.5 | 240 000 166 000 | 495 000 304 000 | 950 1 300 |
| 135 | - | 4 790 | 135 | 188 | 60 | 1.50 | 154.0 | 172.5 | 220 000 | 442 000 | 1 300 |
| 140 | - NAU 4928UU | 3 990 3 840 | 140 140 | 190 190 | 50 50 | 2 2 | 157.5 157.5 | 176 176 | 249 000 174 000 | 531 000 327 000 | 900 1 200 |
Loading...
Basic Information
| Raceway Ring Shape | Cylindrical Roller | Load Direction | Radial / Thrust | I.D. d(Ø) | 40 |
|---|---|---|---|---|---|
| O.D. D(Ø) | 62 | Width B(mm) | 22 | Inner/Outer Ring Material | Steel |
| Outer Ring | With Outer Ring | Number of Raceway Ring Rows | Double Row | Size Standards | Metric System |
| Specifications | Standard / Abrasion Resistance / For high Speed | Rolling Element Material | Steel | Outer Ring Type | Semicircular Grooved |
| Rotational Speed(rpm) | 4000 | Basic Load Rating, Dynamic Rating(N) | 23400 | Basic Load Rating, Static Rating(N) | 29400 |
| Basic Load Rating, Dynamic Rating (Ca)(N) | 23400 | Basic Load Rating, Static Rating (Coa)(N) | 29400 | Format of Shaft Bearing | Holder Mounted |
| Shield Shape | Closed Type | the Number of Oil Holes of Inner Wheel(piece) | 0 |
Please check the type/dimensions/specifications of the part NAU4908UU in the Roller Bearing - Sealed, Caged, NAU Series series.
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Additional Products in this Category
- Cylindrical Roller Bearing - Single or Double Row
- Thrust Roller Bearings
- Solid Needle Roller Bearing
- Needle Roller Bearing - Without Ribs, NAO Series
- Tapered Roller Bearing - Separable, Adjustable or Inch Pairs, DIN ISO 355 / DIN 720, 332 Series
- Needle Roller Bearing - Without Inner Ring, Machined, TR Series
- Combination Needle Roller/Thrust Ball Bearing - With Inner Ring, NAXI Series
- Combination Needle Roller/Angular Contact Ball Bearing - NATB Series
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