IKO TRI 203820,TRI 203825 MACHINED TYPE NEEDLE ROLLER BEARINGS
IKO TRI 203820,TRI 203825 Description
| Shaft dia.
mm | Identification number | Mass (Ref.)
g |
d | |||||
| NA 49 | NA 69 | NA 48 | TAFI | TRI | GTRI | |||
|
15 | ─ ─ NA 4902 ─ | ─ ─ ─ NA 6902 | ─ ─ ─ ─ | TAFI 152716 TAFI 152720 ─ ─ | ─ ─ ─ ─ | ─ ─ ─ ─ | 39.5 50 35 61 | 15 15 15 15 |
| ─ ─ | ─ ─ | ─ ─ | ─ ─ | TRI 153320 ─ | ─ GTRI 153320 | 81 90.5 | 15 15 | |
|
17 | ─ ─ NA 4903 ─ | ─ ─ ─ NA 6903 | ─ ─ ─ ─ | TAFI 172916 TAFI 172920 ─ ─ | ─ ─ ─ ─ | ─ ─ ─ ─ | 43.5 54 39 67 | 17 17 17 17 |
| ─ ─ | ─ ─ | ─ ─ | ─ ─ | TRI 173425 ─ | ─ GTRI 173425 | 104 117 | 17 17 | |
|
20 | ─ ─ NA 4904 ─ | ─ ─ ─ NA 6904 | ─ ─ ─ ─ | TAFI 203216 TAFI 203220 ─ ─ | ─ ─ ─ ─ | ─ ─ ─ ─ | 48.5 61 78.5 136 | 20 20 20 20 |
| ─ ─ ─ ─ | ─ ─ ─ ─ | ─ ─ ─ ─ | ─ ─ ─ ─ | TRI 203820 TRI 203825 ─ ─ | ─ ─ GTRI 203820 GTRI 203825 | 99 124 110 138 | 20 20 20 20 | |
| 22 | ─ ─ NA 49/22 ─ | ─ ─ ─ NA 69/22 | ─ ─ ─ ─ | TAFI 223416 TAFI 223420 ─ ─ | ─ ─ ─ ─ | ─ ─ ─ ─ | 52 67.5 87 152 | 22 22 22 22 |
| 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. | |||||||||||
| 27 27 28 28 | 16 20 13 23 | ─ ─ ─ ─ | 0.3 0.3 0.3 0.3 | 19 19 20 20 | 0.5 0.5 0.3 0.3 | 17 17 17 17 | 18 18 19 19 | 25 25 26 26 | 14 000 17 700 10 900 19 300 | 18 700 25 300 13 800 28 800 | 20 000 20 000 20 000 20 000 | LRT 151916 LRT 151920 LRT 152013 LRT 152023 |
| 33 33 | 20 20 | 20.5 20.5 | 0.3 0.3 | 20 20 | 0.3 ─ | 17 17 | 19 19 | 31 31 | 24 300 29 200 | 26 500 37 200 | 20 000 7 500 | LRT 152020 LRTZ 152020 |
| 29 29 30 30 | 16 20 13 23 | ─ ─ ─ ─ | 0.3 0.3 0.3 0.3 | 21 21 22 22 | 0.5 0.5 0.3 0.3 | 19 19 19 19 | 20 20 21 21 | 27 27 28 28 | 14 400 18 200 11 700 20 800 | 20 000 27 100 15 600 32 500 | 19 000 19 000 18 000 18 000 | LRT 172116 LRT 172120 LRT 172213 LRT 172223 |
| 34 34 | 25 25 | 25.5 25.5 | 0.3 0.3 | 22 22 | 0.5 ─ | 19 19 | 21 21 | 32 32 | 29 100 37 900 | 36 800 57 800 | 18 000 7 000 | LRT 172225 LRTZ 172225 |
| 32 32 37 37 | 16 20 17 30 | ─ ─ ─ ─ | 0.3 0.3 0.3 0.3 | 24 24 25 25 | 0.5 0.5 0.5 0.5 | 22 22 22 22 | 23 23 24 24 | 30 30 35 35 | 15 300 19 400 21 000 35 400 | 22 500 30 500 25 000 48 900 | 17 000 17 000 16 000 16 000 | LRT 202416 LRT 202420 LRT 202517 LRT 202530 |
| 38 38 38 38 | 20 25 20 25 | 20.5 25.5 20.5 25.5 | 0.3 0.3 0.3 0.3 | 25 25 25 25 | 0.3 0.5 ─ ─ | 22 22 22 22 | 24 24 24 24 | 36 36 36 36 | 28 900 34 800 33 300 42 400 | 35 000 44 400 46 500 63 700 | 16 000 16 000 6 000 6 000 | LRT 202520 LRT 202525 LRTZ 202520 LRTZ 202525 |
| 34 34 39 39 | 16 20 17 30 | ─ ─ ─ ─ | 0.3 0.3 0.3 0.3 | 26 26 28 28 | 0.5 0.5 1 0.5 | 24 24 24 24 | 25 25 27 27 | 32 32 37 37 | 16 300 20 600 21 400 36 300 | 24 900 33 800 28 900 56 900 | 15 000 15 000 14 000 14 000 | LRT 222616 LRT 222620 LRT 222817 LRT 222830 |
IKO TRI 203820,TRI 203825 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. TAFI series with a bore diameter d of 22 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.
