IKO TAFI 324720,TAFI 324730 MACHINED TYPE NEEDLE ROLLER BEARINGS
IKO TAFI 324720,TAFI 324730 Description
| Shaft dia.
mm | Identification number | Mass (Ref.)
g |
d | |||||
| NA 49 | NA 69 | NA 48 | TAFI | TRI | GTRI | |||
|
25 | ─ ─ NA 4905 ─ | ─ ─ ─ NA 6905 | ─ ─ ─ ─ | TAFI 253820 TAFI 253830 ─ ─ | ─ ─ ─ ─ | ─ ─ ─ ─ | 82 123 92.5 160 | 25 25 25 25 |
| ─ ─ | ─ ─ | ─ ─ | ─ ─ | TRI 254425 ─ | ─ GTRI 254425 | 157 175 | 25 25 | |
|
28 | ─ ─ NA 49/28 ─ | ─ ─ ─ NA 69/28 | ─ ─ ─ ─ | TAFI 284220 TAFI 284230 ─ ─ | ─ ─ ─ ─ | ─ ─ ─ ─ | 96.5 145 101 176 | 28 28 28 28 |
| ─ | ─ | ─ | ─ | ─ | GTRI 284530 | 196 | 28 | |
|
30 | ─ ─ NA 4906 ─ | ─ ─ ─ NA 6906 | ─ ─ ─ ─ | TAFI 304520 TAFI 304530 ─ ─ | ─ ─ ─ ─ | ─ ─ ─ ─ | 112 171 106 184 | 30 30 30 30 |
| ─ ─ | ─ ─ | ─ ─ | ─ ─ | TRI 304830 ─ | ─ GTRI 304830 | 199 225 | 30 30 | |
|
32 | ─ ─ NA 49/32 | ─ ─ ─ | ─ ─ ─ | TAFI 324720 TAFI 324730 ─ | ─ ─ ─ | ─ ─ ─ | 121 180 165 | 32 32 32 |
| ─ ─ ─ | ─ NA 69/32 ─ | ─ ─ ─ | ─ ─ ─ | TRI 325230 ─ ─ | ─ ─ GTRI 325230 | 245 295 270 | 32 32 32 | |
| Boundary dimensions mm | Standard mounting dimensions mm | Basic dynamic load rating C N | Basic static load rating C0 N | Allowable rotational speed(3)
min-1 | Assembled inner ring | |||||||
| D | C | B | (1) rs min | Fw | (2) S | da | Da Max. | |||||
| Min. | Max. | |||||||||||
| 38 38 42 42 | 20 30 17 30 | ─ ─ ─ ─ | 0.3 0.3 0.3 0.3 | 29 29 30 30 | 0.5 1 0.5 0.5 | 27 27 27 27 | 28 28 29 29 | 36 36 40 40 | 21 600 30 900 23 700 42 100 | 37 200 59 100 30 700 64 300 | 14 000 14 000 13 000 13 000 | LRT 252920 LRT 252930 LRT 253017 LRT 253030 |
| 44 44 | 25 25 | 25.5 25.5 | 0.3 0.3 | 30 30 | 0.5 ─ | 27 27 | 29 29 | 42 42 | 37 900 47 000 | 52 100 76 500 | 13 000 5 000 | LRT 253025 LRTZ 253025 |
| 42 42 45 45 | 20 30 17 30 | ─ ─ ─ ─ | 0.3 0.3 0.3 0.3 | 32 32 32 32 | 0.5 1 1 1 | 30 30 30 30 | 31 31 31 31 | 40 40 43 43 | 25 700 36 800 24 500 41 800 | 42 200 67 200 32 700 64 800 | 12 000 12 000 12 000 12 000 | LRT 283220 LRT 283230 LRT 283217 LRT 283230 |
| 45 | 30 | 30.5 | 0.3 | 32 | ─ | 30 | 31 | 43 | 58 000 | 101 000 | 4 500 | LRTZ 283230 |
| 45 45 47 47 | 20 30 17 30 | ─ ─ ─ ─ | 0.3 0.3 0.3 0.3 | 35 35 35 35 | 0.3 0.5 0.5 0.5 | 32 32 32 32 | 34 34 34 34 | 43 43 45 45 | 26 900 38 600 25 200 43 000 | 46 200 73 600 34 700 69 000 | 11 000 11 000 11 000 11 000 | LRT 303520 LRT 303530 LRT 303517 LRT 303530 |
| 48 48 | 30 30 | 30.5 30.5 | 0.3 0.3 | 35 35 | 1 ─ | 32 32 | 34 34 | 46 46 | 47 400 61 100 | 72 300 110 000 | 11 000 4 500 | LRT 303530-1 LRTZ 303530 |
| 47 47 52 | 20 30 20 | ─ ─ ─ | 0.3 0.3 0.6 | 37 37 40 | 0.3 0.5 0.5 | 34 34 36 | 36 36 39 | 45 45 48 | 28 200 40 500 31 200 | 50 100 79 800 47 800 | 11 000 11 000 10 000 | LRT 323720 LRT 323730 LRT 324020 |
| 52 52 52 | 30 36 30 | 30.5 ─ 30.5 | 0.6 0.6 0.6 | 38 40 38 | 0.5 0.3 ─ | 36 36 36 | 37 39 37 | 48 48 48 | 50 800 53 500 64 200 | 81 100 95 700 121 000 | 11 000 10 000 4 000 | LRT 323830 LRT 324036 LRTZ 323830 |
IKO TAFI 324720,TAFI 324730 Nots
Notes(1) Minimum allowable value of chamfer dimension r
(2) Allowable axial shift amount of inner ring to outer ring
(3) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.
Remarks1. The outer ring has an oil groove and an oil hole.
2. No grease is prepacked. Perform proper lubrication.
