30660 Bearing Technical Specifications
- Dimensions
-
- Bore Diameter(d) 300 mm
- Outer Diameter (D) 540 mm
- Width(B) 140 mm
- Basic Load Rating
-
- Dynamic Load Rating (Cr) 2680 kN
- Static Load Rating (Cor) 4700 kN
-
- Weight 142 kg
- Bearing Model
- 30660
- Bearing Type
- Single Row Tapered Roller Bearings
- Main Dimensions
- 300mm × 540mm × 140mm
| ID | 300 mm | Inside diameter(I.D.) |
|---|---|---|
| OD | 540 mm | Outside diameter(O.D.) |
| B | 140 mm | Thickness |
| T | 140 mm | Overall Height |
| Cr | 2680 kN | Radial dynamic load rating |
| Cor | 4700 kN | Radial static load rating |
| Mass | 142 Kg | Weight |
- Brand
- WJY / OEM Available
- Origin
- Wafangdian, China (Global bearing manufacturing hub with 30+ years expertise)
- Precision Rating
- P0 (Standard) / P6 / P5 / P4 (Higher precision for demanding applications)
- Cage
- The default cage is stamped steel; Steel, Brass, and Machined Brass cages are optional, with other types not enumerated here.
- Material
-
- GCr15 Bearing Steel (Industry-standard for high load & fatigue resistance)
- GCr15SiMn
- GCr18Mo
- G20Cr2Ni4A
- Clearance
- C3 (standard), customizable to C0/C2/C4/C5
- Quality Standard
- ISO 9001:2015 Certified
Single Row Tapered Roller Bearings (Model: 30660) are designed to handle combined radial and axial loads efficiently, with exceptional capacity for unidirectional axial forces. Constructed from high-quality chrome steel (GCr15) with precision grinding, these bearings ensure reliable performance under heavy loads and harsh environments. With a bore diameter of 300mm, outer diameter of 540mm, and width of 140mm (total width 149mm), they offer a dynamic radial load capacity of 2680kN and static radial load capacity of 4700kN. Suitable for heavy machinery (e.g., mining equipment, construction machinery), these bearings are widely used in automotive axles, industrial gearboxes, and heavy machinery applications. Equipped with a Standard cage, the bearing supports grease or oil lubrication and provides standard speed rating. Compliant with ISO 9001 standards, it operates within a temperature range of -30°C to +120°C and requires careful preload adjustment during installation to maximize service life. The manufacturer offers a Standard 12-month warranty extendable up to 18 months through authorized Jinyu distributors. OEM solutions available.
Delivery Time
- For in-stock own-brand bearings, Dalian JinYu HuaYang guarantees shipment arrangement within 3–5 days after payment confirmation.
- For OEM/ODM orders, the production and delivery lead time for a full container typically ranges from 20–35 days (depending on order complexity).
Shipping Methods
Ocean Freight/Land Transport
Warranty
We provide 12-month warranty, extendable to 18 months via authorized JinYu distributors.
Pricing Information
Bearing prices vary by precision grade, raw material quality, and market dynamics. For customized quotes, please submit an inquiry via our contact form.