IKO RNA 6904UU,RNA 6904U MACHINED TYPE NEEDLE ROLLER BEARINGS
IKO RNA 6904UU,RNA 6904U Description
| Shaft dia.
mm | Identification number | Mass (Ref.)
g | Boundary dimensions mm | ||||||
| With two seals | With one seal | With two seals | With one seal | Fw | D | C | (1) rs min | ||
| 14 | RNA 4900UU | RNA 4900U | ─ | ─ | 16.3 | 14 | 22 | 13 | 0.3 |
| 16 | RNA 4901UU ─ | RNA 4901U ─ | ─ RNA 6901UU | ─ RNA 6901U | 17.9 30 | 16 16 | 24 24 | 13 22 | 0.3 0.3 |
| 18 | RNA 49/14UU | RNA 49/14U | ─ | ─ | 19.7 | 18 | 26 | 13 | 0.3 |
| 20 | RNA 4902UU ─ | RNA 4902U ─ | ─ RNA 6902UU | ─ RNA 6902U | 21.5 37.5 | 20 20 | 28 28 | 13 23 | 0.3 0.3 |
| 22 | RNA 4903UU ─ | RNA 4903U ─ | ─ RNA 6903UU | ─ RNA 6903U | 23 40.5 | 22 22 | 30 30 | 13 23 | 0.3 0.3 |
| 25 | RNA 4904UU ─ | RNA 4904U ─ | ─ RNA 6904UU | ─ RNA 6904U | 54.5 95.5 | 25 25 | 37 37 | 17 30 | 0.3 0.3 |
| 28 | RNA 49/22UU ─ | RNA 49/22U ─ | ─ RNA 69/22UU | ─ RNA 69/22U | 55.5 97.5 | 28 28 | 39 39 | 17 30 | 0.3 0.3 |
| 30 | RNA 4905UU ─ | RNA 4905U ─ | ─ RNA 6905UU | ─ RNA 6905U | 63 111 | 30 30 | 42 42 | 17 30 | 0.3 0.3 |
| 32 | RNA 49/28UU ─ | RNA 49/28U ─ | ─ RNA 69/28UU | ─ RNA 69/28U | 75.5 133 | 32 32 | 45 45 | 17 30 | 0.3 0.3 |
| 35 | RNA 4906UU ─ | RNA 4906U ─ | ─ RNA 6906UU | ─ RNA 6906U | 71 125 | 35 35 | 47 47 | 17 30 | 0.3 0.3 |
| 40 | RNA 49/32UU ─ | RNA 49/32U ─ | ─ RNA 69/32UU | ─ RNA 69/32U | 94.5 170 | 40 40 | 52 52 | 20 36 | 0.6 0.6 |
| 42 | RNA 4907UU ─ | RNA 4907U ─ | ─ RNA 6907UU | ─ RNA 6907U | 112 200 | 42 42 | 55 55 | 20 36 | 0.6 0.6 |
| 45 | RNA 49/38UU | RNA 49/38U | ─ | ─ | 119 | 45 | 58 | 20 | 0.6 |
| Standard mounting dimension Da Max. mm | Basic dynamic load rating C
N | Basic static load rating C0 N | Allowable rotational speed(2)
min-1 |
| 20 | 8 080 | 8 490 | 14 000 |
| 22 | 8 470 | 9 320 | 12 000 |
| 22 | 15 500 | 20 400 | 12 000 |
| 24 | 9 260 | 10 800 | 11 000 |
| 26 | 9 570 | 11 600 | 9 500 |
| 26 | 18 500 | 27 100 | 9 500 |
| 28 | 10 300 | 13 100 | 8 500 |
| 28 | 19 800 | 30 600 | 8 500 |
| 35 | 18 000 | 20 500 | 7 500 |
| 35 | 33 000 | 44 600 | 7 500 |
| 37 | 18 300 | 23 700 | 7 000 |
| 37 | 33 800 | 52 000 | 7 000 |
| 40 | 20 300 | 25 100 | 6 500 |
| 40 | 39 200 | 58 700 | 6 500 |
| 43 | 21 000 | 26 800 | 6 000 |
| 43 | 38 900 | 59 100 | 6 000 |
| 45 | 21 500 | 28 400 | 5 500 |
| 45 | 40 100 | 63 000 | 5 500 |
| 48 | 29 400 | 44 200 | 5 000 |
| 48 | 50 300 | 88 300 | 5 000 |
| 51 | 30 100 | 46 300 | 4 500 |
| 51 | 51 600 | 92 600 | 4 500 |
| 54 | 31 600 | 50 400 | 4 000 |
IKO RNA 6904UU,RNA 6904U Nots
Notes(1) Minimum allowable value of chamfer dimension r
(2) Allowable rotational speed applies to grease lubrication.
Remarks1. The outer ring has an oil groove and an oil hole.
2. Bearings are provided with prepacked grease. Bearings with a seal on one side are not provided with prepacked grease. Perform
proper lubrication for use.
