30312 Single Row Tapered Roller Bearing for Industrial Use
Item No :
30312Size (d*D*B) :
60x130x33.5mmMaterial :
chrome steel (GCr15)Brand :
famous brand/RMO/Neutral/OEMLead Time :
3-5 daysWeight :
2.02KGMOQ :
10 pcs30312 Single Row Tapered Roller Bearing for Industrial Use
⚙️Product description:
The 30312 is a classic single-row tapered roller bearing in the metric 30000 series, which is recognized as a staple in heavy-load industrial equipment globally. Its excellent load - bearing capacity, easy maintenance, and wide compatibility make it a top choice for buyers in industries such as mining, automotive, and agriculture.
The 30312 bearing delivers reliable performance in high-speed and heavy-load conditions.
Load Capacity: The basic dynamic load rating reaches 202 KN, and the basic static load rating is 175 KN. It can efficiently bear combined radial and unidirectional axial loads. For bidirectional axial load requirements, it can be installed in pairs in opposite directions to achieve stable operation. The fatigue load limit is 23.6 KN, which effectively resists impact loads in harsh working conditions.
Speed Performance: The reference speed is 4150 r/min, and the limiting speed is 5300 r/min. The optimized roller end design and crowned raceway profile reduce friction and heat generation during high-speed operation, while also lowering noise and wear.
Structural Advantages: The cone assembly (inner ring + rollers + cage) can be separated from the cup (outer ring). This separable and interchangeable structure greatly simplifies installation, disassembly, and daily maintenance, saving time for equipment maintenance teams.
| Model No. | d | D | H | m |
| 30302 | 15 mm | 42 mm | 14.25 mm | 0.1 KG |
| 30303 | 17 mm | 47 mm | 15.25 mm | 0.13 KG |
| 30304 | 20 mm | 52 mm | 16.25 mm | 0.19 KG |
| 30305 | 25 mm | 62 mm | 18.25 mm | 0.27 KG |
| 30306 | 30 mm | 72 mm | 20.75 mm | 0.45 KG |
| 30307 | 35 mm | 80 mm | 22.75 mm | 0.57 KG |
| 30308 | 40 mm | 90 mm | 25.25 mm | 0.81 KG |
| 30309 | 45 mm | 100 mm | 27.25 mm | 1 KG |
| 30310 | 50 mm | 110 mm | 29.25 mm | 1.38 KG |
| 30311 | 55 mm | 120 mm | 31.5 mm | 1.8 KG |
| 30312 | 60 mm | 130 mm | 33.5 mm | 2.02 KG |
| 30313 | 65 mm | 140 mm | 36 mm | 2.4 KG |
| 30314 | 70 mm | 150 mm | 38 mm | 3.02 KG |
| 30315 | 75 mm | 160 mm | 40 mm | 3.64 KG |
| 30316 | 80 mm | 170 mm | 42.5 mm | 4.34 KG |
| 30317 | 85 mm | 180 mm | 44.5 mm | 4.83 KG |
| 30318 | 90 mm | 190 mm | 46.5 mm | 5.83 KG |
| 30319 | 95 mm | 200 mm | 49.5 mm | 6.77 KG |
| 30320 | 100 mm | 215 mm | 51.5 mm | 8.3 KG |
| 30321 | 105 mm | 225 mm | 53.5 mm | 9.54 KG |
| 30322 | 110 mm | 240 mm | 54.5 mm | 11 KG |
| 30324 | 120 mm | 260 mm | 59.5 mm | 14.3 KG |
| 30326 | 130 mm | 280 mm | 63.75 mm | 17.1 KG |
| 30328 | 140 mm | 300 mm | 67.75 mm | 20.4 KG |
Mining & Construction: Aggregate crushers, mining equipment, rolling mill machinery, and construction vehicle gearboxes.
Automotive & Transportation: Heavy-duty trucks, gear drives, and transmission systems of engineering vehicles.
Agriculture: Agricultural machinery such as harvesters and tractors.
General Industry: Conveying equipment, electric motors, ship rudder shafts, heavy-duty machine tool spindles, and elevator transmission components.
| 1. Keep clean | 2. Use with caution | 3. appropriate tool | 4. Hot-loading | 5. Be careful of rust |
| Dust will have a bad effect on the bearing, so keep the surrounding clean. | Strong impact during use can easily cause scratches and indentations. | Avoid replacing existing tools, and use appropriate tools. | Bearings are precision parts, so hot installation is recommended. | Sweat on your hands during operation will cause rust, so it is best to wear gloves. |
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