IKO RNA 49/62,TAF 708525 MACHINED TYPE NEEDLE ROLLER BEARINGS
IKO RNA 49/62,TAF 708525 Description
| Shaft dia.
mm | Identification number | Mass (Ref.)
g | ||||||
| RNA 49 | RNA 69 | RNA 48 | TAF | TR | GTR | |||
|
70 | ─ ─ RNA 49/62 | ─ ─ ─ | ─ ─ ─ | TAF TAF | 708525 708535 ─ | ─ ─ ─ | ─ ─ ─ | 280 395 320 |
| ─ ─ | ─ ─ | ─ ─ | ─ ─ | TR 708945 ─ | ─ GTR 708945 | 605 690 | ||
| 72 | RNA 4913 ─ | ─ RNA 6913 | ─ ─ | ─ ─ | ─ ─ | ─ ─ | 325 585 | |
| 73 | ─ ─ | ─ ─ | ─ ─ | TAF TAF | 739025 739035 | ─ ─ | ─ ─ | 335 475 |
| 75 | ─ ─ RNA 49/68 | ─ ─ ─ | ─ ─ ─ | TAF TAF | 759225 759235 ─ | ─ ─ ─ | ─ ─ ─ | 345 485 470 |
| 80 | ─ ─ RNA 4914 ─ | ─ ─ ─ RNA 6914 | ─ ─ ─ ─ | TAF TAF | 809525 809535 ─ ─ | ─ ─ ─ ─ | ─ ─ ─ ─ | 315 445 495 910 |
| 83 | ─ ─ | ─ ─ | ─ ─ | ─ ─ | TR 8310845 ─ | ─ GTR 8310845 | 995 1 090 | |
| 85 | ─ RNA 4915 ─ ─ | ─ ─ ─ RNA 6915 | ─ ─ ─ ─ | TAF 8510525 ─ TAF 8510535 ─ | ─ ─ ─ ─ | ─ ─ ─ ─ | 435 525 610 960 | |
| Boundary dimensions | mm | Standard mounting dimension Da Max. mm | Basic dynamic load rating C
N | Basic static load rating C0 N | Allowable rotational speed(2)
min-1 | ||
| Fw | D | C | (1) rs min | ||||
| 70 | 85 | 25 | 0.6 | 81 | 55 500 | 120 000 | 5 500 |
| 70 | 85 | 35 | 0.6 | 81 | 73 000 | 171 000 | 5 500 |
| 70 | 88 | 25 | 1 | 83 | 61 500 | 109 000 | 5 500 |
| 70 | 89 | 45 | 1 | 84 | 114 000 | 228 000 | 5 500 |
| 70 | 89 | 45 | 1 | 84 | 147 000 | 336 000 | 2 000 |
| 72 | 90 | 25 | 1 | 85 | 62 700 | 113 000 | 5 500 |
| 72 | 90 | 45 | 1 | 85 | 108 000 | 227 000 | 5 500 |
| 73 | 90 | 25 | 1 | 85 | 61 100 | 127 000 | 5 500 |
| 73 | 90 | 35 | 1 | 85 | 80 400 | 181 000 | 5 500 |
| 75 | 92 | 25 | 1 | 87 | 62 100 | 131 000 | 5 500 |
| 75 | 92 | 35 | 1 | 87 | 81 700 | 186 000 | 5 500 |
| 75 | 95 | 30 | 1 | 90 | 79 900 | 147 000 | 5 500 |
| 80 | 95 | 25 | 1 | 90 | 59 400 | 137 000 | 5 000 |
| 80 | 95 | 35 | 1 | 90 | 78 100 | 195 000 | 5 000 |
| 80 | 100 | 30 | 1 | 95 | 83 200 | 158 000 | 5 000 |
| 80 | 100 | 54 | 1 | 95 | 134 000 | 311 000 | 5 000 |
| 83 | 108 | 45 | 1 | 103 | 146 000 | 270 000 | 5 000 |
| 83 | 108 | 45 | 1 | 103 | 190 000 | 396 000 | 1 800 |
| 85 | 105 | 25 | 1 | 100 | 76 300 | 145 000 | 4 500 |
| 85 | 105 | 30 | 1 | 100 | 86 200 | 169 000 | 4 500 |
| 85 | 105 | 35 | 1 | 100 | 102 000 | 210 000 | 4 500 |
| 85 | 105 | 54 | 1 | 100 | 138 000 | 331 000 | 4 500 |
IKO RNA 49/62,TAF 708525 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.
Remarks1. TAF series with a roller set bore diameter Fw of 26 mm or less have no oil hole. In others, the outer ring has an oil groove and an
oil hole.
2. No grease is prepacked. Perform proper lubrication.
