IKO NAG 4908,NAU 4908 ROLLER BEARINGS
IKO NAG 4908,NAU 4908 Description
|
Shaft dia. mm | Identification number | Mass (Ref.)
g | Boundary dimensions mm | |||||||
| Full complement type | Caged type | d | D | C | (1) rs min | J | Ew | |||
| 40 | NAG 4908 ─ ─ | ─ ─ NAU 4908 | ─ TRU 405930 ─ | 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 |
| 42 | ─ | ─ | TRU 426230 | 290 | 42 | 62 | 30 | 0.6 | 48 | 56.5 |
| 45 | NAG 4909 ─ ─ | ─ ─ NAU 4909 | ─ TRU 456430 ─ | 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 |
| 50 | NAG 4910 ─ ─ | ─ NAU 4910 ─ | ─ ─ TRU 507745 | 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 |
| 55 | NAG 4911 ─ ─ | ─ NAU 4911 ─ | ─ ─ TRU 558138 | 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 |
| 60 | NAG 4912 ─ ─ | ─ NAU 4912 ─ | ─ ─ TRU 608945 | 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 |
| 65 | NAG 4913 ─ | ─ NAU 4913 | ─ ─ | 455 440 | 65 65 | 90 90 | 25 25 | 1 1 | 72 72 | 83 83 |
| 70 | NAG 4914 ─ | ─ NAU 4914 | ─ ─ | 725 705 | 70 70 | 100 100 | 30 30 | 1 1 | 79 79 | 91.5 91.5 |
| 75 | NAG 4915 ─ ─ | ─ NAU 4915 ─ | ─ ─ TRU 7510845 | 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 | NAG 4916 ─ | ─ NAU 4916 | ─ ─ | 815 790 | 80 80 | 110 110 | 30 30 | 1 1 | 89.5 89.5 | 102 102 |
| Basic dynamic load rating C N | Basic static load rating C0 N | Allowable rotational speed(2)
min-1 |
| 34 600 | 49 500 | 5 000 |
| 34 700 | 62 500 | 8 500 |
| 23 400 | 29 400 | 8 500 |
| 34 600 | 57 800 | 8 000 |
| 36 400 | 54 700 | 4 500 |
| 32 600 | 59 700 | 8 000 |
| 24 800 | 32 800 | 8 000 |
| 38 200 | 59 900 | 4 000 |
| 26 200 | 36 200 | 7 000 |
| 75 700 | 134 000 | 7 000 |
| 48 100 | 77 700 | 3 500 |
| 33 000 | 47 000 | 6 500 |
| 61 400 | 104 000 | 6 500 |
| 50 300 | 84 300 | 3 500 |
| 34 700 | 51 400 | 6 000 |
| 88 100 | 152 000 | 6 000 |
| 53 200 | 93 000 | 3 000 |
| 36 900 | 57 100 | 5 500 |
| 77 700 | 139 000 | 3 000 |
| 53 700 | 84 600 | 5 000 |
| 80 000 | 146 000 | 2 500 |
| 54 800 | 88 200 | 5 000 |
| 103 000 | 190 000 | 4 500 |
| 83 000 | 157 000 | 2 500 |
| 57 200 | 95 500 | 4 500 |
IKO NAG 4908,NAU 4908 Nots
Notes(1) Minimum allowable value of chamfer dimension r
(2) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.
Considering that the axial load acts under practical operating conditions, up to 1/10 of this value is recommended for actual use.
Remarks1. The outer ring has an oil groove and two oil holes.
2. No grease is prepacked. Perform proper lubrication.
