BEARING 30304JR Product Introduction
The BEARING 30304JR is a high - performance tapered roller bearing, specifically designed to meet the demanding requirements of a wide range of industrial applications.
1. Design and Structure
This bearing features a tapered roller design. The conical shape of the rollers and raceways allows it to efficiently handle both radial and axial loads simultaneously. The "JR" in the model might indicate certain special features or modifications, which could potentially include pre - lubrication or a specific type of inner or outer ring design. This design enables the bearing to distribute loads evenly, reducing stress concentrations and ensuring smooth operation.
2. Material
Constructed from high - quality alloy steel, the BEARING 30304JR offers excellent strength and durability. The alloy steel provides high hardness, which is crucial for withstanding the heavy loads and friction during operation. It also has good fatigue resistance, allowing the bearing to endure repeated stress cycles over a long service life.
3. Application Areas
In the automotive industry, it is often used in the front and rear axles of vehicles. It can handle the complex forces generated during driving, such as the radial loads from the vehicle's weight and the axial loads from cornering and braking. In industrial machinery, it is suitable for use in gearboxes, where it can support the rotating shafts and transmit torque effectively. It is also commonly applied in construction equipment, like excavators and loaders, which operate under harsh conditions with high - load demands.
In summary, the BEARING 30304JR is a reliable choice for industries that require high - quality bearings. Its unique design, robust materials, and wide application potential make it a valuable component in various mechanical systems, providing stable support and efficient operation.
Specification
Model: 30304JR
Inner diameter: 20mm
Outer diameter: 52mm
Thickness: 16.25mm
Mass weight: 0.17kg
Tapered roller bearing
| Model | Inner(d)/mm | Outer(D)/mm | Thickness(T)/mm | Mass(W)/kg |
| 30203 | 17 | 40 | 13.25 | 0.079 |
| 30204 | 20 | 47 | 15.25 | 0.12 |
| 30205 | 25 | 52 | 16.25 | 0.15 |
| 30206 | 30 | 62 | 17.25 | 0.23 |
| 30207 | 35 | 72 | 18.25 | 0.33 |
| 30208 | 40 | 80 | 19.75 | 0.42 |
| 30209 | 45 | 85 | 20.75 | 0.47 |
| 30210 | 50 | 90 | 21.75 | 0.54 |
| 30211 | 55 | 100 | 22.75 | 0.7 |
| 30212 | 60 | 110 | 23.75 | 0.88 |
| 30213 | 65 | 120 | 24.75 | 1.12 |
| 30214 | 70 | 125 | 26.25 | 1.24 |
| 30215 | 75 | 130 | 27.25 | 1.38 |
| 30216 | 80 | 140 | 28.25 | 1.7 |
| 30217 | 85 | 150 | 30.5 | 2.05 |
| 30218 | 90 | 160 | 32.5 | 2.52 |
| 30219 | 95 | 170 | 34.5 | 2.99 |
| 30220 | 100 | 180 | 37 | 3.63 |
| 30221 | 105 | 190 | 39 | 4.29 |
| 30222 | 110 | 200 | 41 | 5.06 |
| 30224 | 120 | 215 | 43.5 | 6.13 |
| 30226 | 130 | 230 | 43.75 | 6.83 |
| 30228 | 140 | 250 | 45.75 | 8.68 |
| 30230 | 150 | 270 | 49 | 10.6 |
| 30232 | 160 | 290 | 52 | 13.9 |
| 30234 | 170 | 310 | 57 | 16.6 |
| 30236 | 180 | 320 | 57 | 17 |
| 30238 | 190 | 340 | 60 | 20.9 |
| 30240 | 200 | 360 | 64 | 24.6 |
