Guangzhou Yingxin Machinery Parts Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 50000/Years |
| Delivery Time | 3-7 Working days |
| Packaging Details | Neutral export carton packaging |
| Product Name | Single Row Metric Tapered Roller Bearing |
| Brand | KOYO |
| Structure | Separable (Cone + Cup) |
| Material | High‑grade Alloy Bearing Steel |
| Cage | Pressed Steel |
| Dimensions | d: 50 mm / D: 110 mm / T: 29.25 mm |
| Inner Ring Width (B) | 27 mm |
| Outer Ring Width (C) | 23 mm |
| Dynamic Load Rating (Cr) | 137 kN |
| Static Load Rating (C0r) | 152 kN |
| Limiting Speed (Grease) | 5000 rpm |
| Net Weight | 1.35 kg |
| Single Package Size | 12×12×4 cm |
| Single Package Weight | 1.45 kg |
| HS Code | 8482200000 |
| Application | Excavator, Loader, Truck, Drive Axle, Gearbox, Construction & Mining Machinery |
| Features | High Load Capacity, Low Friction, Wear Resistant, Shock Resistant |
| Replacement | Direct OEM Replacement |
| Model Number | 30310JR |
| Certification | ISO9001 |
| Place of Origin | CHINA |
View Detail Information
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Product Specification
| Payment Terms | T/T | Supply Ability | 50000/Years |
| Delivery Time | 3-7 Working days | Packaging Details | Neutral export carton packaging |
| Product Name | Single Row Metric Tapered Roller Bearing | Brand | KOYO |
| Structure | Separable (Cone + Cup) | Material | High‑grade Alloy Bearing Steel |
| Cage | Pressed Steel | Dimensions | d: 50 mm / D: 110 mm / T: 29.25 mm |
| Inner Ring Width (B) | 27 mm | Outer Ring Width (C) | 23 mm |
| Dynamic Load Rating (Cr) | 137 kN | Static Load Rating (C0r) | 152 kN |
| Limiting Speed (Grease) | 5000 rpm | Net Weight | 1.35 kg |
| Single Package Size | 12×12×4 cm | Single Package Weight | 1.45 kg |
| HS Code | 8482200000 | Application | Excavator, Loader, Truck, Drive Axle, Gearbox, Construction & Mining Machinery |
| Features | High Load Capacity, Low Friction, Wear Resistant, Shock Resistant | Replacement | Direct OEM Replacement |
| Model Number | 30310JR | Certification | ISO9001 |
| Place of Origin | CHINA | ||
| High Light | KOYO tapered roller bearing gearbox part ，drive axle tapered roller bearing ，tapered roller bearing with warranty | ||
30310JR is a high-performance tapered roller bearing manufactured by KOYO. Made of premium alloy steel, it features high load capacity, low friction and excellent wear resistance. Designed for heavy-duty applications, it runs stably under harsh working conditions, ensuring long service life. Widely used in excavators, loaders, trucks, gearboxes and drive axles. Strict quality control guarantees reliable performance. Ideal replacement spare part for construction, mining and automotive machinery.
| Item | Details |
|---|---|
| Part Number | 30310JR |
| Brand | KOYO |
| Type | Tapered Roller Bearing |
| Material | High Grade Bearing Steel |
| Size | 50*110*29.25 mm |
| Application | Excavator, Loader, Truck, Construction Machinery |
| Feature | Heavy Duty, High Load Capacity |
| Part Number | Bore (d, mm) | Outer Diameter (D, mm) | Width (T, mm) |
|---|---|---|---|
| 30304JR | 20 | 52 | 16.25 |
| 30305JR | 25 | 62 | 18.25 |
| 30306JR | 30 | 72 | 20.75 |
| 30307JR | 35 | 80 | 22.75 |
| 30308JR | 40 | 90 | 25.25 |
| 30309JR | 45 | 100 | 27.25 |
| 30310JR | 50 | 110 | 29.25 |
| 30311JR | 55 | 120 | 31.50 |
| 30312JR | 60 | 130 | 33.50 |
| 30313JR | 65 | 140 | 36.00 |
| 30314JR | 70 | 150 | 38.00 |
| 30315JR | 75 | 160 | 40.00 |
All bearings are made of high-grade alloy steel, processed by precision technology. They run stably under heavy-duty working conditions, with excellent anti-wear and shock resistance performance.
Complete range of 303 series bearings, standard size for direct OEM replacement, compatible with most excavators, loaders and engineering equipment.
Strict quality control before shipment. We support bulk order and fast delivery. Professional team provides effective technical support all the time.
A: Yes. It is manufactured per standard specifications, easy to install and fits perfectly for replacement.
A: It is suitable for excavators, loaders, gearboxes, drive axles and other construction machinery.
A: Made of high-quality alloy steel, it features strong load capacity, good wear resistance and long service life.
A: We provide complete 4T series bearings and related spare parts. Feel free to contact us for details.
A: All items go through strict inspection before delivery to ensure reliable performance.
A: Goods can be shipped within 1-3 working days once payment is confirmed.
A: Sample orders are available. Please contact us to discuss relevant details.
Company Details
Business Type:
Distributor/Wholesaler
Year Established:
2015
Total Annual:
500000-1000000
Employee Number:
2~6
Ecer Certification：
Verified Supplier
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