Koyo/JTEKT 30203JR Tapered Roller Bearing - Metric 17 x 40 x 13.25mm
Available
Koyo/JTEKT 30203JR. Combined load: handles radial and axial in one bearing. 30200 series matches OEM tapered roller specs. Open type, grease as commissioned. Tapered Roller Bearing Metric - 30200 Series is the bearing for wheel hubs, gearbox output shafts and any duty with combined radial and axial loading.
Product Specifications. Bearing type: Tapered roller bearing. Series: 30200. Load type: Combined radial + axial. Construction: Separable. Sealing: Open.
Available Sizes
22 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) Lub. Oil |
|---|---|---|---|
| 17 x 40 x 13.25 | 26 | 20.7 | 14000 |
| 20 x 47 x 15.25 | 33.8 | 27.2 | 12000 |
| 25 x 52 x 16.25 | 39.3 | 33.7 | 10000 |
| 30 x 62 x 17.25 | 51.8 | 44.8 | 8700 |
| 35 x 72 x 18.25 | 68.8 | 60.9 | 7400 |
| 40 x 80 x 19.75 | 78.4 | 69.2 | 6700 |
| 45 x 85 x 20.75 | 83.9 | 77.4 | 6100 |
| 50 x 90 x 21.75 | 95.6 | 91.7 | 5700 |
| 55 x 100 x 22.75 | 118 | 113 | 5200 |
| 60 x 110 x 23.75 | 133 | 127 | 4700 |
| 65 x 120 x 24.75 | 160 | 156 | 4300 |
| 70 x 125 x 26.25 | 173 | 173 | 4100 |
| 75 x 130 x 27.25 | 178 | 181 | 3900 |
| 80 x 140 x 28.25 | 202 | 202 | 3600 |
| 85 x 150 x 30.5 | 228 | 231 | 3400 |
| 90 x 160 x 32.5 | 255 | 261 | 3200 |
| 95 x 170 x 34.5 | 289 | 299 | 3000 |
| 100 x 180 x 37 | 323 | 338 | 2800 |
| 105 x 190 x 39 | 360 | 380 | 2600 |
| 110 x 200 x 41 | 405 | 434 | 2500 |
| 120 x 215 x 43.5 | 435 | 473 | 2300 |
| 140 x 250 x 45.75 | 526 | 570 | 1900 |
Where This Is Used
- Automotive: Front and rear wheels, transmissions, differential pinion.
- Off-Highway Vehicles: Railroad, Construction, and Agricultural equipment.
- Industrial: Rolling mill equipment, gear boxes, and machine tool spindles.
Features
- Features of Spherical Roller Bearings.
- The inner ring assembly of a tapered roller is referred to as the cone, while the outer ring is called the cup.
- Tapered rollers are guided by the cone back face rib.
- This bearing design is suitable for heavy radial loading and a sizeable amount of axial loading.
- The taper of the rollers and the cone raceways have a common apex on the bearing axis.
- The angle between the cup raceway and the bearing axis is the contact angle.
- The larger the contact angle the greater the bearings axial load capacity.
- The cone and cup are separable simplifying bearing mounting.
- Single row bearings can accommodate radial load and axial load in one direction.
- Two single row bearings are used opposing each other to simplify setting of the proper clearance between the two rows.
- The two row design can handle radial load and an axial load in either direction.
- The two row design is available as a TDO (double outer race), or a TDI (double inner race).
- Two row taper designs are normally supplied with spacers to provide a pre-adjusted assembly.
- The four row design is commonly used on rolling mill roll necks for their large load carrying capacity.
- Cages used can be a pressed steel or a pin type.
- Cage types can be pressed steel, machined copper alloy.
Full engineering specifications (all 26 fields, 22 sizes)
| Constant E | Limiting Speed (min-1) Lub. Oil | Bearing Width B (mm) | Mounting Dimension (mm) Rb Max. | Bore Diameter x Outer Diameter x Width (mm) | Mounting Dimension (mm) Sb Min. | Basic Load Rating (kN) Cr | Bearing Width T (mm) | Boundary Dimension (mm) r1 min. | Mounting Dimension (mm) Sa Min. | Boundary Dimension (mm) C | Fatigue Load Limit (kN) Cu | Outside Diameter D (mm) | Bore Diameter d (mm) | Load Center (mm) A | Mounting Dimension (mm) Ra Max. | Mounting Dimension (mm) Da Min. | Axial Load Factor Y0 | Mounting Dimension (mm) Db Min. | Basic Load Rating (kn)c0r | Axial Load Factor Y1 | Mounting Dimension (mm) Db Max. | Mounting Dimension (mm) Da Max. | Mounting Dimension (mm) Da Min | Limiting Speed (min-1) Grease Iub | Boundary Dimension (mm) r min. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.35 | 14000 | 12 | 1 | 17 x 40 x 13.25 | 2 | 26 | 13.25 | 1 | 2 | 11 | 2.85 | 40 | 17 | 10.1 | 1 | 22.5 | 0.96 | 37 | 20.7 | 1.74 | 23 | 34.5 | 33 | 10000 | 1 |
| 0.35 | 12000 | 14 | 1 | 20 x 47 x 15.25 | 3 | 33.8 | 15.25 | 1 | 2 | 12 | 3.8 | 47 | 20 | 11.8 | 1 | 25.5 | 0.96 | 44 | 27.2 | 1.74 | 27 | 41.5 | 39 | 8700 | 1 |
| 0.37 | 10000 | 15 | 1 | 25 x 52 x 16.25 | 3 | 39.3 | 16.25 | 1 | 2 | 13 | 4.75 | 52 | 25 | 12.9 | 1 | 30.5 | 0.88 | 48 | 33.7 | 1.6 | 31 | 46.5 | 44 | 7800 | 1 |
| 0.37 | 8700 | 16 | 1 | 30 x 62 x 17.25 | 3 | 51.8 | 17.25 | 1 | 2 | 14 | 6.45 | 62 | 30 | 14.1 | 1 | 35.5 | 0.88 | 57 | 44.8 | 1.6 | 37 | 56.5 | 53 | 6500 | 1 |
| 0.37 | 7400 | 17 | 1.5 | 35 x 72 x 18.25 | 3 | 68.8 | 18.25 | 1.5 | 3 | 15 | 8.95 | 72 | 35 | 15.3 | 1.5 | 43.5 | 0.88 | 67 | 60.9 | 1.6 | 44 | 63.5 | 62 | 5600 | 1.5 |
| 0.37 | 6700 | 18 | 1.5 | 40 x 80 x 19.75 | 3.5 | 78.4 | 19.75 | 1.5 | 3 | 16 | 10.3 | 80 | 40 | 17 | 1.5 | 48.5 | 0.88 | 75 | 69.2 | 1.6 | 49 | 71.5 | 69 | 5000 | 1.5 |
| 0.4 | 6100 | 19 | 1.5 | 45 x 85 x 20.75 | 4.5 | 83.9 | 20.75 | 1.5 | 3 | 16 | 11.6 | 85 | 45 | 18.9 | 1.5 | 53.5 | 0.81 | 80 | 77.4 | 1.48 | 54 | 76.5 | 74 | 4600 | 1.5 |
| 0.42 | 5700 | 20 | 1.5 | 50 x 90 x 21.75 | 4.5 | 95.6 | 21.75 | 1.5 | 3 | 17 | 13.8 | 90 | 50 | 20.1 | 1.5 | 58.5 | 0.79 | 85 | 91.7 | 1.43 | 58 | 81.5 | 79 | 4300 | 1.5 |
| 0.4 | 5200 | 21 | 1.5 | 55 x 100 x 22.75 | 4.5 | 118 | 22.75 | 1.5 | 4 | 18 | 17.3 | 100 | 55 | 20.7 | 2 | 65 | 0.81 | 94 | 113 | 1.48 | 64 | 90 | 88 | 3900 | 2 |
| 0.4 | 4700 | 22 | 1.5 | 60 x 110 x 23.75 | 4.5 | 133 | 23.75 | 1.5 | 4 | 19 | 19.7 | 110 | 60 | 21.9 | 2 | 70 | 0.81 | 103 | 127 | 1.48 | 70 | 100 | 96 | 3500 | 2 |
| 0.4 | 4300 | 23 | 1.5 | 65 x 120 x 24.75 | 4.5 | 160 | 24.75 | 1.5 | 4 | 20 | 24.3 | 120 | 65 | 24.2 | 2 | 75 | 0.81 | 113 | 156 | 1.48 | 77 | 110 | 106 | 3200 | 2 |
| 0.42 | 4100 | 24 | 1.5 | 70 x 125 x 26.25 | 5 | 173 | 26.25 | 1.5 | 4 | 21 | 27.1 | 125 | 70 | 25.9 | 2 | 80 | 0.79 | 118 | 173 | 1.43 | 81 | 116.5 | 110 | 3100 | 2 |
| 0.44 | 3900 | 25 | 1.5 | 75 x 130 x 27.25 | 5 | 178 | 27.25 | 1.5 | 4 | 22 | 28.2 | 130 | 75 | 27.6 | 2 | 85 | 0.76 | 124 | 181 | 1.38 | 86 | 121.5 | 115 | 2900 | 2 |
| 0.42 | 3600 | 26 | 2 | 80 x 140 x 28.25 | 6 | 202 | 28.25 | 2 | 4 | 22 | 31.2 | 140 | 80 | 28.6 | 2 | 92 | 0.79 | 132 | 202 | 1.43 | 91 | 130 | 124 | 2700 | 2.5 |
| 0.42 | 3400 | 28 | 2 | 85 x 150 x 30.5 | 6.5 | 228 | 30.5 | 2 | 5 | 24 | 35.1 | 150 | 85 | 30.4 | 2 | 97 | 0.79 | 141 | 231 | 1.43 | 97 | 140 | 132 | 2500 | 2.5 |
| 0.42 | 3200 | 30 | 2 | 90 x 160 x 32.5 | 6.5 | 255 | 32.5 | 2 | 5 | 26 | 39 | 160 | 90 | 32.6 | 2 | 102 | 0.79 | 150 | 261 | 1.43 | 103 | 150 | 140 | 2400 | 2.5 |
| 0.42 | 3000 | 32 | 2 | 95 x 170 x 34.5 | 7.5 | 289 | 34.5 | 2.5 | 5 | 27 | 44 | 170 | 95 | 34.9 | 2.5 | 109 | 0.79 | 159 | 299 | 1.43 | 110 | 158 | 149 | 2200 | 3 |
| 0.42 | 2800 | 34 | 2 | 100 x 180 x 37 | 8 | 323 | 37 | 2.5 | 5 | 29 | 49.1 | 180 | 100 | 36.8 | 2.5 | 114 | 0.79 | 168 | 338 | 1.43 | 116 | 168 | 157 | 2100 | 3 |
| 0.42 | 2600 | 36 | 2 | 105 x 190 x 39 | 9 | 360 | 39 | 2.5 | 6 | 30 | 52.3 | 190 | 105 | 39 | 2.5 | 119 | 0.79 | 178 | 380 | 1.43 | 122 | 178 | 165 | 2000 | 3 |
| 0.42 | 2500 | 38 | 2 | 110 x 200 x 41 | 9 | 405 | 41 | 2.5 | 6 | 32 | 58.1 | 200 | 110 | 40.8 | 2.5 | 124 | 0.79 | 188 | 434 | 1.43 | 129 | 188 | 174 | 1900 | 3 |
| 0.44 | 2300 | 40 | 2 | 120 x 215 x 43.5 | 9.5 | 435 | 43.5 | 2.5 | 6 | 34 | 61.7 | 215 | 120 | 44.2 | 2.5 | 134 | 0.76 | 203 | 473 | 1.38 | 140 | 203 | 187 | 1700 | 3 |
| 0 | 1900 | 42 | 2.5 | 140 x 250 x 45.75 | 9.5 | 526 | 45.75 | 3 | 9 | 36 | 71.8 | 250 | 140 | 49.4 | 3 | 158 | 0.76 | 237 | 570 | 1.38 | 163 | 236 | 219 | 1500 | 4 |
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17 x 40 x 13.25mm bearing
Model Number: 30203JR/KOYO
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20 x 47 x 15.25mm bearing
Model Number: 30204JR/KOYO
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25 x 52 x 16.25mm bearing
Model Number: 30205JR/KOYO
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30 x 62 x 17.25mm bearing
Model Number: 30206JR/KOYO
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35 x 72 x 18.25mm bearing
Model Number: 30207JR/KOYO
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40 x 80 x 19.75mm bearing
Model Number: 30208JR/KOYO
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45 x 85 x 20.75mm bearing
Model Number: 30209JR/KOYO
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50 x 90 x 21.75mm bearing
Model Number: 30210JR/KOYO
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55 x 100 x 22.75mm bearing
Model Number: 30211JR/KOYO
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60 x 110 x 23.75mm bearing
Model Number: 30212JR/KOYO
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65 x 120 x 24.75mm bearing
Model Number: 30213JR/KOYO
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70 x 125 x 26.25mm bearing
Model Number: 30214JR/KOYO
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75 x 130 x 27.25mm bearing
Model Number: 30215JR/KOYO
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80 x 140 x 28.25mm bearing
Model Number: 30216JR/KOYO
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85 x 150 x 30.5mm bearing
Model Number: 30217JR/KOYO
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90 x 160 x 32.5mm bearing
Model Number: 30218JR/KOYO
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95 x 170 x 34.5mm bearing
Model Number: 30219JR/KOYO
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100 x 180 x 37mm bearing
Model Number: 30220JR/KOYO
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105 x 190 x 39mm bearing
Model Number: 30221JR/KOYO
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110 x 200 x 41mm bearing
Model Number: 30222JR/KOYO
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120 x 215 x 43.5mm bearing
Model Number: 30224JR/KOYO
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140 x 250 x 45.75mm bearing
Model Number: 30228JR/KOYO


