30321 Bearing Technical Specifications
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- Bore Diameter(d) 105mm
- Outer Diameter (D) 225mm
- Width(B) 49mm
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- Dynamic Load Rating (Cr) 430kN
- Static Load Rating (Cor) 530kN
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- Weight 9.38kg
Tapered Roller Bearing 30321 belongs to the 303 Series - Large Contact Angle (Single Row Tapered Roller Bearing), engineered for medium to heavy-duty radial and single-direction axial load applications. With a bore diameter of 105mm, outer diameter of 225mm, width of 49mm, and assembly height of 53.5mm, this medium-bore bearing is made of high-quality GCr15 steel for excellent durability and wear resistance.
Key features: large contact angle, enhanced axial load capacity, high rigidity. It has a basic dynamic load rating of 430kN and basic static load rating of 530kN, ensuring reliable operation under high load conditions.
Typical Applications: heavy-duty gearboxes, axle assemblies
Bearing Type
Main Dimensions
105mm × 225mm × 49mm
| ID | 105mm | Inside diameter(I.D.) |
|---|---|---|
| OD | 225mm | Outside diameter(O.D.) |
| B | 49mm | Thickness |
| T | 53.5mm | Overall Height |
| Cr | 430kN | Radial dynamic load rating |
| Cor | 530kN | Radial static load rating |
| Grease speed | Limiting speed (grease lubrication) | |
| Oil speed | Limiting speed(oil lubrication) | |
| Mass | 9.38Kg | Weight |
Material
GCr15 Bearing Steel (Customizable materials: GCr15 Bearing Steel/GCr15SiMn/GCr18Mo/G20Cr2Ni4A)
Cage
Pressed steel cage ( customizable on demand in steel, brass, machined brass, etc.)
Precision Rating
P0 (Customizable on demand in P0/P6/P5/P4 grades; higher precision for demanding applications)
Clearance
C2 (customizable on demand in C0/C2/C3/C4/C5 specifications)
Brand
WJY / OEM Available
Origin
Quality Standard
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
Bearings prices vary by precision grade, raw material quality, and market dynamics. For customized quotes, please submit an inquiry via our contact form.