Koyo/JTEKT N305 Cylindrical Roller Bearing 25 x 62 x 17mm
Available
Koyo/JTEKT N305. High radial load capacity at high speed. Loose outer, fixed inner. 300 series. Cylindrical Bearing Loose Outer Fixed Inner 300 Series is for high-speed shafts where pure radial load and thermal axial expansion need to be accommodated.
Product Specifications. Bearing type: Cylindrical roller bearing. Series: 300. Configuration: Loose outer, fixed inner. Inner ring: Standard. Load: Pure radial, axial floating.
Available Sizes
18 sizes available — select the exact size you need from the dropdown above. Key figures for each:
| Bore Diameter x Outer Diameter x Width (mm) | Basic Load Rating (kN) Cr | Basic Load Rating (kN) C0r | Limiting Speed (min-1) Grease Oil |
|---|---|---|---|
| 25 x 62 x 17 | 36.6 | 25.2 | 10000 |
| 30 x 72 x 19 | 48.3 | 35.2 | 8700 |
| 35 x 80 x 21 | 62 | 46.9 | 7900 |
| 40 x 90 x 23 | 73.4 | 56.9 | 6900 |
| 45 x 100 x 25 | 98.5 | 77.5 | 6200 |
| 50 x 110 x 27 | 109 | 93.4 | 5600 |
| 55 x 120 x 29 | 138 | 111 | 5100 |
| 60 x 130 x 31 | 155 | 126 | 4700 |
| 65 x 140 x 33 | 169 | 139 | 4300 |
| 70 x 150 x 35 | 198 | 168 | 4000 |
| 75 x 160 x 37 | 224 | 205 | 3800 |
| 80 x 170 x 39 | 238 | 207 | 3500 |
| 85 x 180 x 41 | 281 | 247 | 3300 |
| 100 x 215 x 47 | 373 | 337 | 2800 |
| 110 x 240 x 50 | 475 | 467 | 2500 |
| 120 x 260 x 55 | 561 | 551 | 2200 |
| 130 x 280 x 58 | 699 | 667 | 2100 |
| 140 x 300 x 62 | 771 | 746 | 1900 |
Where This Is Used
- Automotive: Internal combustion engines transmissions, and cargo transportation.
- Electrical: Large and medium sizes motors, traction motors, and generators.
- Industrial: Gearboxes and machine tool spindles, steel mills.
Features
- Features and Benefits.
- High radial capacity in compact section.
- Floating axial: accommodates shaft thermal expansion.
- Loose outer, fixed inner: suits specific bearing arrangement.
- High-speed capable: roller geometry well suited to fast shafts.
Full engineering specifications (all 20 fields, 18 sizes)
| Bearing Width B (mm) | Mounting Dimension (mm) Rb Max. | Bore Diameter x Outer Diameter x Width (mm) | Basic Load Rating (kN) Cr | Boundary Dimension (mm) r1 min. | Limiting Speed (min-1) Grease Oil | Fatigue Load Limit (kN) Cu | Outside Diameter D (mm) | Limiting Speed (min-1) Oil Lub | Mounting Dimension (mm) Dd Min. | Basic Load Rating (kN) C0r | Bore Diameter d (mm) | Mounting Dimension (mm) Ra Max. | Mounting Dimension (mm) Da Min. | Boundary Dimension (mm) Ew | Mounting Dimension (mm) Db Min. | Mounting Dimension (mm) Db Max. | Mounting Dimension (mm) Da Max. | Boundary Dimension (mm) r min. | Mounting Dimension (mm) Dc Min. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 17 | 1 | 25 x 62 x 17 | 36.6 | 1.1 | 10000 | 3.45 | 62 | 14000 | 40 | 25.2 | 25 | 1 | 31.5 | 53 | 55 | 55.5 | 55.5 | 1.1 | |
| 19 | 1 | 30 x 72 x 19 | 48.3 | 1.1 | 8700 | 5 | 72 | 12000 | 48 | 35.2 | 30 | 1 | 36.5 | 62 | 64 | 65.5 | 65.5 | 1.1 | |
| 21 | 1 | 35 x 80 x 21 | 62 | 1.1 | 7900 | 6.2 | 80 | 10000 | 53 | 46.9 | 35 | 1.5 | 43 | 68.2 | 71 | 73.5 | 72 | 1.5 | |
| 23 | 1.5 | 40 x 90 x 23 | 73.4 | 1.5 | 6900 | 7.85 | 90 | 9100 | 60 | 56.9 | 40 | 1.5 | 48 | 77.5 | 80 | 82 | 82 | 1.5 | |
| 25 | 1.5 | 45 x 100 x 25 | 98.5 | 1.5 | 6200 | 11.3 | 100 | 8300 | 66 | 77.5 | 45 | 1.5 | 53 | 86.5 | 89 | 92 | 92 | 1.5 | |
| 27 | 2 | 50 x 110 x 27 | 109 | 2 | 5600 | 11.7 | 110 | 7500 | 73 | 93.4 | 50 | 2 | 59 | 95 | 98 | 101 | 101 | 2 | |
| 29 | 55 x 120 x 29 | 138 | 2 | 5100 | 15.8 | 120 | 6800 | 107 | 111 | 55 | 64 | 104.5 | 80 | 2 | 2 | 2 | 111 | ||
| 31 | 60 x 130 x 31 | 155 | 2.1 | 4700 | 17.3 | 130 | 6300 | 116 | 126 | 60 | 71 | 113 | 86 | 2 | 2 | 2.1 | 119 | ||
| 33 | 2 | 65 x 140 x 33 | 169 | 2.1 | 4300 | 19.2 | 140 | 5800 | 93 | 139 | 65 | 2 | 76 | 121.5 | 125 | 129 | 129 | 2.1 | |
| 35 | 2 | 70 x 150 x 35 | 198 | 2.1 | 4000 | 23.3 | 150 | 5400 | 100 | 168 | 70 | 2 | 81 | 130 | 134 | 139 | 139 | 2.1 | |
| 37 | 2 | 75 x 160 x 37 | 224 | 2.1 | 3800 | 28.4 | 160 | 5000 | 106 | 205 | 75 | 2 | 86 | 139.5 | 143 | 149 | 149 | 2.1 | |
| 39 | 2 | 80 x 170 x 39 | 238 | 2.1 | 3500 | 30.7 | 170 | 4700 | 114 | 207 | 80 | 2 | 91 | 147 | 151 | 159 | 159 | 2.1 | |
| 41 | 2.5 | 85 x 180 x 41 | 281 | 3 | 3300 | 35.6 | 180 | 4500 | 119 | 247 | 85 | 2.5 | 98 | 156 | 160 | 167 | 167 | 3 | |
| 47 | 2.5 | 100 x 215 x 47 | 373 | 3 | 2800 | 47.2 | 215 | 3700 | 143 | 337 | 100 | 2.5 | 113 | 185.5 | 190 | 202 | 202 | 3 | |
| 50 | 2.5 | 110 x 240 x 50 | 475 | 3 | 2500 | 58.4 | 240 | 3300 | 211 | 467 | 110 | 2.5 | 123 | 207 | 158 | 227 | 3 | 227 | |
| 55 | 2.5 | 120 x 260 x 55 | 561 | 3 | 2200 | 67.1 | 260 | 3000 | 171 | 551 | 120 | 2.5 | 133 | 226 | 230 | 247 | 247 | 3 | |
| 58 | 3 | 130 x 280 x 58 | 699 | 4 | 2100 | 85.7 | 280 | 2700 | 247 | 667 | 130 | 3 | 146 | 243 | 184 | 264 | 4 | 264 | |
| 62 | 3 | 140 x 300 x 62 | 771 | 4 | 1900 | 93.8 | 300 | 2500 | 198 | 746 | 140 | 3 | 156 | 260 | 264 | 284 | 284 | 4 |
Couldn't load pickup availability
Secure Checkout. We do not store credit card details
-
25 x 62 x 17mm bearing
Model Number: N305/KOYO
-
30 x 72 x 19mm bearing
Model Number: N306/KOYO
-
35 x 80 x 21mm bearing
Model Number: N307/KOYO
-
40 x 90 x 23mm bearing
Model Number: N308/KOYO
-
45 x 100 x 25mm bearing
Model Number: N309/KOYO
-
50 x 110 x 27mm bearing
Model Number: N310/KOYO
-
55 x 120 x 29mm bearing
Model Number: N311/KOYO
-
60 x 130 x 31mm bearing
Model Number: N312/KOYO
-
65 x 140 x 33mm bearing
Model Number: N313/KOYO
-
70 x 150 x 35mm bearing
Model Number: N314/KOYO
-
75 x 160 x 37mm bearing
Model Number: N315/KOYO
-
80 x 170 x 39mm bearing
Model Number: N316/KOYO
-
85 x 180 x 41mm bearing
Model Number: N317/KOYO
-
100 x 215 x 47mm bearing
Model Number: N320/KOYO
-
110 x 240 x 50mm bearing
Model Number: N322/KOYO
-
120 x 260 x 55mm bearing
Model Number: N324/KOYO
-
130 x 280 x 58mm bearing
Model Number: N326/KOYO
-
140 x 300 x 62mm bearing
Model Number: N328/KOYO

